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Home My WebLink AboutDEPARTMENT OF TRANSPORTATION WASHINGTON WASHINGTON ROAD INTERSECTION IMPROVEMENTS THIS AGREEMENT made and entered into this ..3 day of ~jV\.6~ , 200B by and between the Department of Transportation, an agency of the State of Georgia ("Department") and the Commission of the Unified Government of Augusta-Richmond County ("Unified Government") who have been duly authorized to execute this Agreement: WIT N E SSE T H: WHEREAS, the Department and Unified Government desire the improvements and construction of a certain facility and the Unified Government desires and agrees to furnish and deliver all the material and to do and perform all the work and labor for said purpose. NOW THEREFORE, for and in consideration of the premises, the mutual covenants herein contained it is agreed by and between the Department and the Unified Government that: '.. A. BASIC AGREEMENT: 1. The Unified Government shall contract for 0.240 mile of widening for additional turn lanes on Boy Scout Road/Center West Parkway at Washington Road, Contract ID No. C38352-08-000-0, hereinafter referred to as the "Project". It is understood that the quantities shown are approximates only and subject either to increase or decrease and any increases or decreases are to be paid for at the contract unit price given, labeled Exhibit A, attached hereto and incorporated herein by reference. The maximum allowable costs for the Project shall be $299,999.94. 2. The work and materials shall be in strict and entire conformity with the provIsions of this Agreement and the plans prepared by the Unified Government and approved by the Chief Engineer or his authorized representative the originals of which are on file at the Department and which said plans are hereby made a part of this Agreement as if fully set forth herein. The Project will be constructed in accordance with the standard specifications, 2001 edition, as further amended, and the Supplemental Specifications and Special Provisions, attached hereto as Exhibit B and incorporated herein by reference. " 3. The work can be performed by the local government or can be subcontracted out to a private contractor. If the work is performed by a private contractor the Iota I government is responsible for preparing the bid contract documents and letting the work out for bid in accordance with the express limitations as provided in Part 2 of Article 3 of Title 32 or any other provision of law. The local government shall ensure that the project is constructed in accordance with GDOT specifications regardless of whether the contract is performed by the local government or a private contractor. The local government will also be responsible for notifying the GDOT Area Construction Office prior to work starting on the project regardless of who performs the work. The Department will have Inspectors on the project to perform routine construction inspections and material testing. (~ 4. It is understood that the material pits are to be furnished by the Unified Government at no cost to the Department. 5. It is understood that the Department will not participate in the cost of any utility facility removal and relocations necessary in connection with the construction of this Project, unless otherwise specified in the Agreement. The Unified Government shall be responsible for handling the arrangements with the utility owners for any removal and relocation necessary. The Unified Government shall give the utility owners ample notice, of the impending construction to allow time for engineering and material orders required for any removal and relocations as may be necessary. Also, the Unified Government agre es to clear right-of-way obstructions without expense to the Department. For purposes of applying provisions of this paragraph, railroads are considered utilities. In addition to the foregoing, the Unified Government shall obtain approval of plans and acquire easements or other property rights from the railroad for construction within railroad property/right-of-way and shall provide for the protection of railroad interests, including flagging and inspection, as may be required by the railroad. .. 6. The work shall begin after the issuance of a notification to proceed by the Department to the Unified Government and shall be carried through to completion without unreasonable delay and without suspension of work unless authorized in writing by the Department. The Unified Government shall perform its responsibilities for the. Project until the maximum allowable cost to the Department has been reached or until July 21, 2010, whichever comes first. 7. The work shall be done in accordance with the laws of the State of Georgia under the direct supervision and to the entire satisfaction of the Department. The decision of the Chief Engineer upon any question connected with the execution or fulfillment of this Agreement and interpretation of the specifications orupon any failure or delay in the prosecution of the work by the Unified Government shall be final and conclusive. 8. The Unified Government agrees to perform all extra work that may be required of them on the basis of actual cost. 9. The financing of this Project shall be as follows: Payments will be made on monthly statements as the work progresses. B. GENERAL PROVISIONS: ~ 1. Covenants Against Contingent Fees. The Unified Government shall comply with the relevant requirements of all federal, state and local laws in effect as of the date hereof. The Unified Government warrants that it has not employed or retained any company or person, other than a bona fide employee working solely for the Unified Government, to solicit or secure this Agreement, and that it has not paid or agreed to pay any company or person, other than a bona fide employee working solely for the Unified Government, any fee, commission, percentage, brokerage fee, gifts, or any consideration, contingent upon or resulting from the award or making of this Agreement. For breach or violation of this warranty, the DEPARTMENT shall have the right to annul this Agreement without liability or, in its discretion to deduct from the Agreement price or consideration, or otherwise recover, the full amount of such fee, commission, percentage, brokerage fee, gift or contingent fee. J 2. No Third Party Beneficiaries. Nothing herein shall be construed as conferring upon or giving to any person, other than the parties hereto, any rights or benefit under or by reason of this Agreement. 3. Entire Agreement. This Contract instrument, including all incorporated documents, contains the entire Contract between the parties with regard to the subject matter hereof, and supersedes any and all other prior and contemporaneous agreements and understandings between the parties, whether oral or written. 4. Severabilitv. If any provision of this Agreement is determined to be invalid or unenforceable, the remaining provisions shall remain in force and unaffected to the fullest extent permitted by law and regulation. 5. Compliance with Applicable Laws. A. The undersigned certify that the provisions of Section 45-10-20 through 45-10-28 of the Official Code of Georgia Annotated relating to Conflict of Interest and State employees and officials trading with the State have been complied with in full. B. IT IS FURTHER AGREED that the Unified Government shall comply and shall require its subcontractors to comply with the regulations for COMPLIANCE WITH TITLE VI OF THE CIVIL RIGHTS ACT OF 1964, as amended, and 23 CFR 200. C. IT IS FURTHER CERTIFIED that the provisions of Sections 50-24-1 through 50-24-6 of the Official Code of Georgia annotated, relating to the "Drug-Free Workplace Act" have been complied with in full. Including compliance by prime contractors and sub-contractors performing work under this Agreement. D. By execution of this contract, I certify under penalty of law that the Unified Government is in compliance with the service delivery strategy law (House Bill 489) and is not debarred from receiving financial assistance from the State of Georgia. E. By execution of this contract, I certify under penalty of law that the Unified Government is in compliance State Audit Requirements as provided under Exhibit C attached hereto and incorporated herein by reference. .. F. IT IS FURTHER CERTIFIED that pursuant to O.C.G.A. 9 13-10-911 and all contractor and sub- contractors performing work under this Agreement are in compliance with the Federal Work Authorization Program. Prime contractors and sub-contractors may participate in any of the electronic verification of work authorization programs operated by the United States Department of Homeland Security or any equivalent federal work authorization program operated by the United States Department of Homeland Security to verify information of newly hired employees, pursuant to the Immigration Reform and Control Act of 1986 ("IRCA"). " 6. Effective Date. This Agreement shall become effective upon the date above first written. 7. Governing Law. This Agreement is made and entered into in Fulton County, Georgia, and shall be governed and construed under the laws of the State of Georgia. The covenants herein contained shall, except as otherwise provided, accrue to the benefit of and be binding upon the successors and assigns of the parties hereto. IN WITNESS WHEREOF, said parties have hereunto set their seals the day and m above first written. DEP ARTMENT OF TRANSPORT A TION . ~~~ Commissioner L , ...~ ,fit rtllo( 630 ~ W-t-t-f lO-'~1 ~ lR Date '--~~~WFORM 53 - d ~otfc;2 74- Fed ID No. /IRS No. Jo. EXHIBIT A DEPARTMENT OF TRANSPORTATION STATE OF GEORGIA CONTRACT SCHEDULE CONTRACT ID: C38352-08-000-0 PROJECT(S) : S009707CI0000 PRCI0-S009-00(707) Cl LINEI NO I 1 ITEM DESCRIPTION --------------------------------------------------------------------------------- APPROX. QUANTITY AND UNITS I UNIT PRICE I BID AMOUNT 1----------------1---------------- I DOLLARS I CTS I DOLLARS ICTS SECTION 0001 ROADWAY --------------------------------------------------------------------------------- --------------------------------------------------------------------------------- 299,999.94 I I ITN I ----------------------------------------------- 1402-3190 RECYCLED ASPH I 00351cONC 19 MM SUPERPAVE, GP I 11 OR 2,INCL BITUM MATL & ITN IH LIME I 1001-9998 LIMITED 0005 I PARTICIPATION PROJECT, ITHE AMOUNT SHALL NOT IEXCEED - $299,999.94 1228-1000 GRADING - 0010lMODIFIED, INCL HAUL I . 1310-5060 GR AGGR BASE 00151CRS, 6 INCH, INCL MATL I 1310-5100 GR AGGR BASE 0020lcRS, 10 INCH, INCL MATL I 1402-1812 RECYCLED ASPH 00251CONC LEVELING, INCL IBITUM MATL & H LIME 1402-3130 RECYCLED ASPH 003olCONC 12.5 MM SUPERPAVE, IGP 2 ONLY, INCL BITUM IMATL & H LIME I I 1* I I I IMI I I ISY I I ISY I I ITN 1413-1000 BITUM TACK COAT I 0040 I I I IGL 1432-5010 MILL ASPH CONC 0045 I PVMT, VARIABLE DEPTH I I I ISY I 1.0001 I 1 I 0.2401 I I 1,191.0001 I I 1,191.0001 0.00 9,360.00 9,528.00 11,910.00 750.000 24,000.00 500.000 15,700.00 610.000 17,690.00 224.0001 I I 2,180.0001 I 336.00 1,983.80 --------------------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION STATE OF GEORGIA CONTRACT SCHEDULE CONTRACT ID: C38352-08-000-0 PROJECT(S) : S009707CI0000 PRCI0-S009-00(707) Cl ---------------------------------------------------------------- ---------------- I I I ---------------------------------------------------------------- I I ISY LINEI NO I I ITEM DESCRIPTION 1441-0104 CONC SIDEWALK, 005014 IN I 1441-4020 CONC VALLEY 0055 I GUTTER, 6 IN I 1441-6222 CONC CURB & I 0060 I GUTTER, 8 IN X 30 IN, TP I 12 ILF 1500-3201 CLASS B I 0065 I CONCRETE, RETAINING WALL I 1 ICY 1550-1180 STORM DRAIN 007olpIPE, 18 IN, H 1-10 I 1603-2182 STN DUMPED RIP 00751RAP, TP 3, 24 IN I 1634-1200 RIGHT OF WAY 0080 I MARKERS I 1653-0120 THERMOPLASTIC 00851pVMT MARKING, ARROW, TP 12 1653-0130 THERMOPLASTIC 0090 I PVMT MARKING, ARROW, TP 13 1653-0210 THERMOPLASTIC I 00951pVMT MARKING, WORD, TP 1 I I lEA APPROX. QUANTITY AND UNITS I UNIT PRICE 1---------------- I DOLLARS I CTS I I ISY I I ILF I I ISY I I lEA I I lEA I I lEA 25.13000 15.46000 8.02000 1 336.760001 I I 23.930001 I 20.41000 51.61000 30.28000 1 35.930001 1 I 47.640001 I BID AMOUNT DOLLARS ICTS 2,136.05 3,092.00 19,929.70 179,493.08 1,220.43 81.64 464.49 363.36 71.86 --------------------------------------------------------------------------------- 142.92 DEPARTMENT OF TRANSPORTATION STATE OF GEORGIA CONTRACT SCHEDULE CONTRACT ID: C38352-08-000-0 PROJECT(S) : S009707C10000 PRC10-S009-00(707) C1 LINEI NO I I ITEM DESCRIPTION APPROX. QUANTITY AND UNITS 1 UNIT PRICE I BID AMOUNT 1----------------1---------------- 1 DOLLARS 1 CTS I DOLLARS ICTS 505.41 1653-1502 THERMOPLASTIC I 01051s0LID TRAF STRIPE,S IN, I 1 YELLOW I LF 625.26 1653-1704 THERMOPLASTIC I 0110ls0LID TRAF STRIPE, 24 IN, I IWHITE ILF 1653-3501 THERMOPLASTIC 01151SKIP TRAF STRIPE,S IN, IWHITE 1653-3502 THERMOPLASTIC 0120lsKIPTRAF STRIPE,S IN, I YELLOW 1653-6006 THERMOPLASTIC 01251TRAF STRIPING, YELLOW 1 1654-1001 RAISED PVMT 0130lMARKERS TP 1 I 1654-1002 RAISED PVMT 01351MARKERS TP 2 I 1654-1003 RAISED PVMT 0140lMARKERS TP 3 I 1706-1002 TURF 0145 I ESTABLISHMENT, TP B I ITOTAL BID 178.50 I I IGLF 8.50 I I IGLF 0.16000 8.00 I I ISY 1.43000 640.64 I I lEA 1.57000 163.28 I I lEA 1. 83000 I I I 3.380001 I I 900.000001 I I 14.64 I I lEA 172.38 I I lAC 180.00 299,999.94 --------------------------------------------------------------------------------- --------------------------------------------------------------------------------- CONTRACT ID S.P. CODE 107-1-01-SP 108-1-01-SP 109-1-02-SP 152-1-01-SP 228-1-01-SP 400-1-01-SP 402-1-01-SP 802-1-01-SP 819-1-01-SP 828-1-01-SP 883-1-01-SP A99-0-00- EXHIBIT B DEPARTMENT OF TRANSPORTATION STATE OF GEORGIA SPECIAL PROVISIONS G38352-08-000-0 0.240 MILE OF WIDENING FOR ADDITIONAL TURN LANES ON BOY SCOUT ROAD/ CENTER WEST PARKWAY AT WASHINGTON ROAD. SPECIAL PROVISIONS DESCRIPTION LEGAL REGULATIONS AND RESPONSIBILITIES TO THE PUBLIC PROSECUTION AND PROGRESS MEASUREMENT & PAYMENT FIELD LABORATORY BUILDING (OFF/SYSTEM 400/402) GRADING (MODIFIED) INCLUDING HAUL ASPHALTIC CONCRETE (OFF SYSTEM - 400/402) RECYCLED ASPH CONCRETE (OFF SYSTEM - 400/402) AGGR FOR ASPH CONC (Off System 400/402) FIBER STAB ADDITIVES (Off System 400/402) HOT MIX ASPH CONC MIXTURES (Off System 400/402) MINERAL FILLER (Off System 400/402) PLANS ( 11 ) Date: Septetnber 24, 2002 First Use Date 2001 Specifications: November I, 2002 DEPARTMENT OF TRANSPORTATION . STATE OF GEORGIA SPECIAL PROVISION (For State Aid Contracts Only) Section 107-Legal Regulations and Responsibility to the Public Delete Subsection l07.23A and substitute thefollowing: 107.23 Environmental Considerations All enviwIUl1ental Considerations and clearances shall be the responsibility of the County ot municipality to meet, including the requirements of Section 404 of the Clean Water Act (33 USC 1344). After July 1,1991, State funded projects must comply with the requirements of Chapter 16 of TitJe 12 of the Official Code of Geotgia Annotated, the Georgia Environmental Policy Act (GEPA), of 1991. In compliance with GEPA, those projects for which Federal funding is sought, and NEP A compliance is accomplished, are exempt from the requirements of GEP A 'GEl> A requires that environmental documentation be accomplished for County or City projectS if more than 50 percent of the total project cost is funded by a grant of a State Agency or a grant of more that $250,000.00 is made by the State AgeJicy to the municipality or County. The "responsible. official of the goveniment agency sl1aQ determine if a proposed governmental action is a Proposed governmental action which may significantly adversely affect the quality of the enviroIUl1ent." A~ The Following Projects Would Not Significantly Adversely Affect The QuaJfty Of The Environment: Non~land disturbing activities and minor land disturbing activities that wOldd not be anticipated to significantly. affect the quality of the' environment include the followmg list These types of projects funded with state money would not be subject to environmental assessment of any kind. Hearing procedures outline in GEP A would not be applicable. 1. Minor roadway and non-historic bridge projects. a. Modernization of an existing highway by resurfacing, J;CSloration, rehabilitation, adding shoulders, widening a single lane or less in each direction and the addition of a median within previousl)' disturbed exis.ting right~f- way. . b. Adding auxiliary lanes for localized Pwposes (weaving, climbing, speed changes, etc.) and correction subslaDdard curves and intersections wilhin previously disturbed existing right-or~way. . c. Non-historic bridge replacement projects in existing alignment with no detour bridge. 2. Lighting, signing, pavement marking, signalization, freeway surveillance and control SYSfums, aDd railroad . . protective devices. 3. Safety projects such as grooving. glared screen, safety barriers, energy attenuators, median barriers, etc. 4. Highway landscaping and lal,ldscaping modification, rest area projects and truck weigh stations within previously disturbed existing right-of-way. 5. Construction of bus shelters and bays within existing right-Of-way. 6. Temporary replacement of a highway facility that is coqunenced immedi~ly after lhe OCcurrence of a natural disaster of catastrophic failure to restore the highway for the health. welfare, and safety of the public. OffIce of State Aid Section 107-LegaJ Regulations and Responslbfflty to the Public B. The FoUowing Projects May Not Significantly Adversely Affect The Quality Of The Environment: For projects that will cause land disturbance and for which there is no anticipation that the project may significantly adversely affect the quality of the environment, certain studies will be undertaken. These studies would serve to document whether or not the County or municipality should anticipate that a project might significantly adversely affect the quality of the environment Documentation of the studies will be accomplished through the use of the "GEP A Investigation Studies" checklist . The types of projects that would fall under the category, would include: 1. Bridge replacement projects on new location or with a detour bridge, where there are no significant adverse impacts to historic or archaeological resources, no involvement with Federally listed threatened and endangered species and no significant adverse impact to wetlands. 2. Passing lanes, me4ian additions and widening projects, where there are no significant adverse impacts to historic or archaeological resources, no involvement with Federally listed threatened and endangered species and no significant adverse impact to wetlands. 3. Safety and intersection improvements where there are no significant adverse impacts to historic or archaeological resources, no involvement with Federally listed threatened and endangered species and no significant adverse impact to wetlands. 4. Rest area projects and truck weigh stations with no purchase of additional right~of-way. . . 5. New location projects where there are no significant adverse impacts to historic or archaeologicafresources, no involvement with Federally listed threatened and endangered species and no significant.adverSe impact to wetlands. If studies' demonstrate that the project will nOt significantly adversely affect the quality of the environment, project files Will be documented. If studies demonstrate that the project may significantly adversely affect the quality of the environment, development of an environmental effects report (EER) will be undertaken along with full GEP A compliance. C. The Following Projects May Significantly Adversely Affect The Quality Of The Environment: This category of projects may include major widening and new location projects. If such projects result in a significant adverse effect, an EER shall be prepared. D. EER Procedure: GEP A calls for consideratii;>n of the "cumulative effect of the proposed government actions on the environment.....if a series of proposed government actions are related either geographically or as logical parts in a chain of contemplated actions." Therefore. EER's for sections of roadways to be widened or built as new location facilities will include all projects that are connected geographically or as logical parts in a chain of contemplated actions. 1. During preparation of an environmental eftect report, the County or Municipality Will consult with arid solicit comments fromagericies that have jurisdiction by law, special expertise, or other interest with respect to environmental impacts. 2. In compliance with GEP A the fOllOwing shall be contained in the EER, at a minimum: a. Cover sheet; b. Executive summary; c. Alternatives, including the no-build; d. Relevant environmental setting; Geology, soils, water supply and wetlands, floral fauna. archaeologylhistory, economic environment, energy, cultural resources; e. The environmental impact of the Proposed action of the relevant setting and mitigation ineasures proposed to avoid or minimize adverse impact; f. Unavoidable adverse environmental effects; g. VaIue of short-term uses of the environment and maintenance and enhancement of its. long-term value; h. Beneficial aspects. both long term and short term and its economic advantages and disadvantages; i. Comments of agencies which have jurisdiction by law, special expertise. or other .interest with respect to any enviromnental impact or resource; Ott~ of State Aid. Page 2 SectIon 107-Legal Regulations and Responsibility to the Public 3. :At least 45 days prior to making a decision as to whether to proceed with the undertaking, publish in the "legal organ of each County in which the proposed governmental action or any part thereof is to occur, notice that an environmental effects report has been prepared". 4. The County or Municipality shan send a copy of the EER and all other COmments to the Director, EPD. 5. The County or municipality shall make the document available to the public and agencies, upon request - - 6. A public hearing will be held in each affected county jf at least. 1 00 residents of the State of Georgia request on within 30 days of publication in the legal organ of an affected County. The responsible official or his designee may hold a public hearing ifless than 100 requests are received. (The county or municipality is not relieved of other State legal requirements of public hearings, however.) 7. Following the public notice period andIorpublic hearing, a summary of the document, comments received and recommendation as to whether to proceed with the action as originally prepared, to proceed with changes, or not to proceed will be PJ:epared (Notice of Decision). 8. This decision document, when signed by the responsible official, will be sent to the director, EPD, and an abbreviated notice of the decision will be published in the legal organ of each County in which the propoSed governmental action or any part thereof is to occur. 9. A copy of the decision document. the EER and public hearing comments (if any) will be sent to the Department Of Transportation, Office of Environnient and Location and The Department of Natural Resources, Environmeiltal Protection Division for their files. Department Of Transportation . Office Of Environment And Location 3933 Aviation Circle Athinfa, Georgia 30336 Department Of Natural Re5()urces Environmental Protection Division 205 BuUer Street, Se Suite 1152 Atlanta, Georgia 30334 Any mitigation measures identified in the EER will be incorporated into the final project plans. OffICe of State Aid Page 3 . Date: May 29. 2001 FlfSt Use Date 2001 Specifications: November 1,.2002 DEPARTMENT OF TRANSPORTATION STATE OF GEORGIA. SPECIAL PROVISION Section 108-Prosecution and Progress. Retain Subsection 108.03 except as modified below: Por this Project. the Progress Scbedule required by Subsection 108.03 need not be submitted.. Date: July 3, 2001 . First Use Date 2001 Specifications: November i, 2002 DEPARTMENT OF TRANSPORTATION STATE OF GEORGIA SPECIAL PROVISION Section 109-Measurement & Payment (City ICounty Contracts) . Delete the first sentence of Subsection l09.07.A, paragraph one, ll1id substitute the following: . A. General: On the. tenth day of each calendar month, the total value of Items complete in place will be estimated by the Engineer and certified for payment. Date: August 8, 2002 FIrst Use Date 2001 Specifications: November 1,2002 DE~ARTMENT OF TRANSPORTATION STATE OF GEORGIA SPECIAL PROVISION Section 152-Field Laboratory Building Delete Subsection 152.1.02.B and sUbstitute the following: B.- Referenced Documents GDT 38 GDT 83 NFPA-IOA Delete Subsection 152.3.05.D.5.e throuth h. . July 23, 2002 Date: September 24, 2002 First Use Date 2001 Specifications: November 1, 2002 DEPARTMENT OF TRANSPORTATION STATE OF GEORGIA SPECIAL PROVISION (For State Aid Contracts Only) \,. Section 228-Grading (Modified) Including Haul Add the following: 228.1 General Description Grading (Modified) Including Haul consists of the following: · . Excavation of all materials of whatever nature includIng borrow if required, to alignment, grade and typical cross-sections shown on the plans or as directed by the Engineer · All necessary hauling, formation of embankments, shoulder construction, subgrade construction, ditch excavation, finishing and dressing, replacement of unsuitable material removed from the subgrade, and disposal of any unsuitable or surplus material. · Removal and disposal of miscellaneous roadway items including, but not limited to, curbs, drainage structures and pavements, unless established as separate contract items. · All necessary clearing and grubbing in accordance with Section 201 and Section 202, required to complete the work unless these items have been established as pay items in the contract. 228.1.01 Definitions General Provisions 101 through 150. 228.1.02 Related References A. Standard Specifications . Section 109 Section 201 . Section 202 Section 205 Section 206 Section 207 Section 208 Section 209 B. Referenced Documents General Provisions 101 through 150. Office of State Aid Page 1 Grading (Modified) Including Haul 228.1.03 Submittals General Provisions 101 through 150. 228.2 Materials Use all suitable material excavated, including that taken from trenches, roadway ditches and slopes, in forming embankments as far as practicable. Use surplus or unsuitable materials in flattening slopes of embankments, backfilling washes or ditches, or . wasted back of the construction lines as directed. 228.2.01 Delivery, Storage, and Handling General Provisions 101 through 150. 228.3 Construction Requirements 228.3.01 Personnel General Provisions 101 through 150. . 228.3.02 Equipment Use construction equipment approved by the Engineer that will not damage base, pavement or other appurtenances to be retained. 228.3.03 Preparation General Provisions 101 through 150. 228.3.04 Fabrication General Provisions 101 through 150. 228.3.05 Construction Perform the work according to the appropriate portions of Sections201, 202,205,206,207,208, and 209 of the Specifications. A. Clearing and Grubbing Perform clearing and grubbing well in advance of excavation and embankment construction. B. General Requirements 1. Cross Section As a minimum requirement, grade the roadway according to the specified typical sections. 2. Slopes, Ditches, Shoulders Perform excavation so that front slopes, ditches and shoulders are neatly trimmed to the lines given. Additional shoulder width will be permitted when extra width shoulders are ready in place and fit the existing roadbed provided the finished shoulders present a reasonably uniform appearance. Office of State Aid Page 2 Grading (Modified) Including Haul 3. Shaping and Dressing After all excavation and formation of embankments and shoulders has been substantially completed, properly shape, finish, and dress the roadway in reasonably close conformity to the lines and grades given. 4. Compaction Construct all embankments in 8 inch (200 mm) layers and the full width of the cross section. Compact in according to Section 208 of the Specifications. C. Placing Base Material Prior to placing any base material, the finish the subgrade according to Subsection 209.3.05 of the Specifications. 228.3.06 Quality Assurance General Provisions 101 through 150. 228.3.07 Contractor Warranty and Maintenance General Provisions 101 through 150. 228.4 Measurement Grading Modified Including Haul is measured in Linear Miles (kilometers) along the centerline of the road or the median, including ramps, when shown on the Plans. Surplus material may be disposed of beyond the end of the Project, but the distance (miles or kilometers) measured for payment will not extend beyond the established termini. 228.4.01 Limits General Provisions 101 through 150. 228.5 Payment The item of Grading (Modified) Including Haul is paid for at the Contract Unit Price Per Linear Mile (kilometer) complete, in place, and accepted. Payment is full compensation for clearing and grubbing inside the construction limits where this item is not shown as a separate item in the Contract, for all excavation to the typical section required or as modified herein, formation of embankments, construction of shoulders, backing out subgrades for pavement, flushing fill slopes and ramps, filling washes, wasting surplus or unsuitable material, finishing and dressing, cleaning of side ditches, all hauling of excavation, and any . incidentals necessary to complete the Item. No separate payment be made for finishing and dressing. Include the cost of necessary finishing and dressing to comply with these Specifications in the Contract Unit Price of Grading (Modified) Including Haul. . Pa ent will be made under: tern No. 228 radin (modified), includin haul er linear mile (kilometer) 228.5.01 Adjustments General Provisions 101 through 150. Office of State Aid Page 3 First Use: February 3, 2006 Revised: February 6, 2006 Revised: May 1,2006 Revised: July 17,2006 Revised: September 29,2006 Revised: December 7, 2006 Off System Revised: February 22, 2007 Off System Revised :December 4, 2007 Georgia Department of Transportation State of Georgia Special Provision Section 400-Hot Mix Asphaltic Concrete Construction Delete Section 400 and Substitute the following: 400.1 General Description This work includes constructing one or more courses of bituminous plant mixtureon the prepared foundation or existing roadway surface. The mixture shall conform with lines, grades, thicknesses, and typical cross sections shown on the Plans or established by the Engineer. This section includes the requirements for all bituminous plart mixtures regardless of the gradation of the aggregates, type and amount of bituminous material, or pavement use. Work will be accepted on a lot-to-Iot basis according to the requirements of this Section and Section 106. 400.1.01 Definitions Segregated Mixture: Mixture lacking homogeneity in HMA constituents of such a magnitude that there is a reasonable expectation of accelerated pavement distress or performance problems. May be quantified by measurable changes in temperature, gradation, asphalt content, air voids, or surface texture. New Construction: A roadway section more than 0.5 mile (800 m) long that is not longitudinally adjacent to the existing roadway. If one or more lanes is added longitudinally adjacent to the existing lane, the lane or lanes shall be tested under the criteria for a resurfacing project. Trench Widening: Widening no more than 4 ft. (1.2 m) in width. Comparison sample: Opposite quarter of material sampled by the Contractor. Referee sample: A sample ofthe material retained during the quartering process which is used for evaluation if a comparison of Contractor and Departmental test results is outside allowable tolerances. Quality assurance sample: Independmt sample taken by the Departmentto verify quality of mix or acceptance decision 400.1.02 Related References A. Standard Specifications Section lO6--Control of Materials Section 109-Measurement and Payment Section 152~Field Laboratory Building Section 400-Hot Mix Asphaltic Concrete Construction Section 413-Bituminous Tack Coat Section 424-Bituminous Surface Treatment Section 802-Coarse Aggregate for Asphaltic Concrete Section 828-Hot Mix Asphaltic Concrete Mixtures B. Referenced Documents AASHTO T 209 AASHTO T 202 AASHTO T 49 Laboratory Standard Operating Procedure (SOP) 27, "Quality Assurance for Hot Mix Asphaltic Concrete Plants in Georgia" Department of Transportation Standard Operating Procedure (SOP) 15 Georgia Department of Transportation Standard Operation Procedure (SOP) 40 GDT 38 GDT 73 GDT 78 GDT 83 GDT 93 GDT 119 GDT 125 GDT 134 GSPI5 GSP 21 QE1.l QPL2 QPL7 QPL 26 QPL 30 QPL 39 QPL 41 QPL 45 QPL65 QPL 67 QPL 70 QPL 77 400.1.03 Submittals A. Invoices When the Department requests, furnish formal written invoices from a supplier for all materials used in production of HMA. Show the following on the Bill of Lading: Section 400-Hot Mix Asphaltic Concrete Construction · Date shipped · Quantity in tons (megagrams) · Included with or without additives (for asphalt cement) Purchase asphaltic cement from a supplier who will provide copies of Bill of Lading upon the Department's request. B. Paving Plan Before starting asphaltic concrete construction, submit a written paving plan to the Engineer for approval. Include the following on the paving plan: · Proposed starting date · Location ofplant(s) · Rate of production · Average haul distance(s) · Number of haul trucks · Paver speed feet (meter)/minute for each placement operation · Mat width for each placement operation · Number and type of rollers for each placement operation · Sketch of the typical section showing the paving sequence for each placement operation · Electronic controls used for each placement operation · Temporary pavement marking plan If staged construction is designated in the Plans or contract, provide a paving plan for each construction stage. If segregation is detected, submit a written plan of measures and actions to prevent segregation. Work will not continue until the plan is submitted to and approved by the Department. C. Job Mix Formula After the Contract has been awarded, submit to the Engineer a written job mix formula proposed for each mixture type to be used based on an approved mix design. Furnish the following information for each mix: · Specific project for which the mixture will be used · Source and description of the materials to be used · Mixture I.D. Number · Proportions of the raw materials to be combined in dc paving mixture · Single percentage of the combined mineral aggregates passing each specified sieve · Single percentage of asphalt by weight of the total mix to be. incorporated in the completed mixture · Single temperature at which to discharge the mixture from the plant · Theoretical specific gravity of the mixture at the designated asphalt content · Name of the person or agency responsible for quality control of the mixture during production Do the following to have the formulas approved in accordance with SOP 40 "Approval of Contractor Job Mix Formulas" and to ensure their quality: I. Submit proposed job mix formulas for review at least two weeks before beginning the mixing operations. 2. Do not start hot mix asphaltic concrete work until the Engineer has approved a'pb mix formula for the mixture to be used. No mixture will be accepted until the Engineer has given approval. 3. Provide mix designs for all Superpave and 4.75 mm mixes to be used. The Department will provide mix design results for other mixes to be used. 4. After ajob mix formula has been approved, assume responsibility for the quality control of the mixtures supplied to the Department according to Subsection 106.0 I, "Source of Supply and Ouantity of Materials." Section 400-Hot Mix Asphaltic Concrete Construction D. Quality Control Program Submit a Quality Control Plan to the Office of Materials and Research for approval. The Quality Control Program will be included as part of the certification in the annual plant inspectionreport. 400.2 Materials Ensure that materials comply with the specifications listed in Table I. Table 1-Materials Specifications Material Subsection Asphalt Cement. Grade Specified Coarse Aggregates for Asphaltic Concrete Fine Aggregates for Asphaltic Concrete Mineral Filler 820.2 802.2.02 802.2.0 I 883.] 83] .2.04 882.2.03 831.2.05 820.2 828 Heat Stable Anti-Stripping Additive Hydrated Lime Silicone Fluid Bituminous Tack Coat: PG 58-22, PG 64-22, PG 67-22 Hot Mix Asphaltic Concrete Mixtures 400.2.01 Delivery, Storage, and Handling Storage of material is allowed in a properly sealed and insulated system for up to 24 hours except that Stone Matrix Asphalt (SMA), Open-Graded Friction Course (OGFC), or Porous European Mix (PEM) mixtures shall not be stored more than ]2 hours. Mixtures other than SMA, OGFC, or PEM may be stored up to 72 hours in a sealed and insulated system, equipped with an auxiliary inert gas system, with the Engineer's approval. Segregation, lumpiness,drain-down, or stiffness of stored mixture is cause for rejection of the mixture. The Engineer will not approve using a storage or surge bin if the mixture segregates, loses excessive heat, or oxidizes during storage. The Engineer may obtain mixture samples or rtcover asphalt cement according to GDT ] ] 9. AASHTO T 202 and T 49 will be used to perform viscosity and penetration tests to determine how much asphalt hardening has occurrd. A. Vehicles for Transporting and Delivering Mixtures Ensure that trucks used for hauling bituminous mixtures have tight, clean, smooth beds. Follow these guidelines when preparing vehicles to transport bituminous mixtures: 1. Use an approved releasing agent from QPL 39 in the transporting vehicle beds, if necessary, to prevent the mixture from sticking to the bed. Ensure that the releasing agent is not detrimental to the mixture. When applying the agent, drain the excess agent from the bed before loading. Remove from the project any transporting vehicles determined to contain unapproved releasing agents. 2. Protect the mixture with a waterproof cover large enough to e~end over the sides and ends of the bed. Securely fasten the waterproof cover before the vehicle begins moving. 3. Insulate the front end and sides of each bed with an insulating material with the following specifications: · Consists of builders insulating board or equivalent · Has a minimum "R" value of 4.0 · Can withstand approximately 400 OF (200 oc) temperatures Install the insulating material so it is protected from loss and contamination.A "Heat Dump Body" may be used in lieu of insulation of the bed. "Heat ])}mp Body" refers to any approved transport vehicle that is capable of diverting engine exhaust and transmitting heat evenly throughout the dump body to keep asphalt at required temperature. Mark the "Heat Dump Body" clearly with "OPEN" and "CLOSE" position at the exhaust diverter. Install a padlock and lock it in the "OPEN" position when the "Heat Dump Body" is used to transport bituminous mixture~ Section 400-Hot Mix Asphaltic Concrete Construction 4. Mark each transporting vehicle with a clearly visible identification number. 5. Create a hole in each side of the bed so that the temperature of the loaded mixture can be checked. The placement of these holes shall be located to assure that the thennometer is being placed in the hot mix asphaltic concrete. Ensure that the mixture is delivered to the roadway at a terrperature within:f: 20 of (:f: II oc) of the temperature on the job mix fonnula. . If the Engineer detennines that a truck may be hazardous to the Project or adversely affect the quality of the work, remove the truck from the project. B. Containers for Transporting, Conveying, and Storing Bituminous Material To transport, convey, and store bituminous material, use containers free of foreign material and equipped with sample valves. Bituminous material will not be accepted from conveying vehicles if material has bked or spilled from the containers. 400.3 Construction Requirements 400.3. 01 Personnel General Provisions 101 through ISO. 400.3.02 Equipment Hot mix asphaltic concrete plants that produce mix for Department use are governed by Quality Assurance for HotMix Asphaltic Concrete Plants in Georgia, Laboratory Standard Operating Procedure No. 27. The Engineer will approve the equipment used to transport and construct hot mix asphaltic concrete. Ensure that the equipment is in satisfactory mechanical condition and can function properly during production and placement operations. Place the following equipment at the plant or project site: A. Field Laboratory Provide a field laboratory according to Section J 52. B. Plant Equipment I. Scales Provide scales as follows: a. Furnish (at the Contractor's expense) scales to weigh bituminous plant mixtures, regardless of the measurement method for payment. b. Ensure that the weight measuring devices bat provide documentation comply with Subsection 109.01. "Measurement and Ouantities." c. When not using platfonn scales, provide weight devices that record the mixturenet weights delivered to the truck. A net weight system will include, but is not limited to: · Hopper or batcher-type weight systems that deliver asphaltic mixture directly to the truck · Fully automatic batching equipment with a digital recording device d. Use a net weight printing system only with automatic batching and mixing systems approved by the Engineer. e. Ensure that the net weight scale mechanism or device manufacturer, installation, perfonnance, and operation meets the requirements in Subsection 109.0 J. "Measurement and Ouantities" f. Provide infonnation on the Project tickets according to Department of Transportation SOP-IS. 2. Time-Locking Devices Furnish batch type asphalt plants with automatic time-locking devices that control the mixing time automatically. Construct these devices so that the operator cannot shorten or eliminate any portion of the mixing cycle. 3. Surge- and Storage-Systems Provide surge and storage bins as follows: a. Ensure that bins for mixture storage are insulated and have a working seal, top and bottom, to prevent outside air infiltration and to maintain an inert atmosphere during storage. Bins not intended as storage bins may be Section 400-Hot Mix Asphaltic Concrete Construction used as surge bins to hold hot mixtures for part of the working day. However, empty these surge bins completely at the end of the working day. b. Ensure that surge and storage bins can retain a predetermined minimum level of mixture in the bin when the trucks are loaded. c. Ensure that surge and storage systems do not contribute to mix segregation, lumpiness,drain-down, or stiffness. 4. Controls for Dust Collector Fines Control dust collection as follows: a. When collecting airborne aggregate particles and returning them to the mixture, hate the return system meter all or part of the collected dust uniformly into the aggregate mixture and waste the excess. The collected dust percentage returned to the mixture is subject to the Engineer's approval. b. When the collected dust is returned directly to the hot aggregate flow, interlock the dust feeder with the hot aggregate flow and meter the flow to maintain a flow that is constant, proportioned, and uniform. 5. Hydrated Lime Treatment System When hydrated lime is required as a mixture ingredient: a. Use a separate bin and feed system to store and proportion the required quantity into the mixture. b. Ensure that the aggregate is uniformly coated with hydrated lime aggregate before adding the bituminous material to the mixture. Add the hydrated lime so thatit will not become entrained in the exhaust system of the drier or plant. c. Control the feeder system with a proportioning device that meets these specifications: · Is accurate to within ::I: 10 percent of the amount required · Has a convenient and accurate means of calibration · Interlocks with the aggregate feed or weigh system to maintain the correct proportions for all rates of production and batch sizes and to ensure that mixture produced is properly treated with lime Provide flow indicators or sensing devices for the hydrated lime system and interlock them with the plant controls to interrupt mixture production if hydrated lime introduction failsto meet the required target value after no longer than 60 seconds. 6. Net Weight Weighing Mechanisms Certify the accuracy of the net weight weighing mechanisms by an approved registered scale serviceperson at least once every 6 months. Check the accuracy of net weight weighing mechanisms at the beginning of Project production and thereafter as directed by the Engineer. Check mechanism accuracy as follows: a. Weigh a load on a set of certified commercial truck scales. Ensure that the difference between the printed total net weight and that obtained from the commercial scales is no greater than 4 Ibsll ,000 Ibs (4 kglMg) ofload. Check the accuracy of the bitumen scales as follows: · Use standard test weights. · If the checks indicate that printed weights are out of tolerance, have a registered scale serviceperson check the batch scales and certify the accuracy of the printer. · While the printer system is out of tolerance and before its adjustment, continue production only ifusing a set of certified truck scales to determine the truck weights. b. Have plants that use batch scales maintain ten 50 Ib (25 kg) standard test weights atthe plant site to check batching scale accuracy. Ensure that plant scales that are used only to proportion mixture ingredients, not to determine pay quantities, are within two percent throughout the range. C. Equipment at Project Site 1. Cleaning Equipment Provide sufficient hand tools and power equipment to clean the roadway surface before placing the bituminous tack coat. Use power equipment that complies with Subsection 424.3.02.F, "Power Broom and Power Blower." 2. Pressure Distributor Section 400-Hot Mix Asphaltic Concrete Construction To apply the bituminous tack coat, use a pressure distributor that complies with Subsection 424.3.02.B, "Pressure Distributor." 3. Bituminous Pavers To place hot mix asphaltic concrete, use bituminous pavers that can spread and finish courses that are: · As wide and deep as indicated on the Plans · True to line, grade, and cross section · Smooth · Unifonn in density and texture a. Continuous Line and Grade Reference Control Furnish, place, and maintain the supports, wires, devices, and materials required to provide continuous line and grade reference control to the automatic paver control system. b. Automatic Screed Control System. Equip the bituminous pavers with an automatic screed control system actuated from sensor-directed mechanisms or devices that will maintain the paver screed at a pro-detennined transverse slope and elevation to obtain the required surfare. c. Transverse Slope Controller. Use a transverse slope controller capable of maintaining the screed at the desired slope within :l: 0.1 percent. Do not use continuous paving set-ups that result in unbalanced screed widths or off. center breaks in the main screed cross section unless approved by the Engineer, d. Screed Control. Equip the paver to pennit the following four modes of screed control. The method used shall be approved by the Engineer. · Automatic grade sensing and slope control · Automatic dual grade sensing · Combination automatic and manual control · Total manual control Ensure that the controls are referenced with a taut string or wire set to grade, or with a ski-type device or mobile reference at least 30 ft (9 m) long when using a conventional ski. A non contacting laser or sonar-type ski with at least four referencing mobile stations may be used with a reference at least 24 ft. (7.3 m) long. Under limited conditions, a short ski or shoe may be substituted for a long ski on the second paver operating in tmdem, or when the reference plane is a newly placed adjacent lane. Automatic screed control is required on all Projects; however, when the Engineer detennines that Project conditions prohibit the use of such controls, the Engineer may waive the grade contol, or slope control requirements, or both. e. Paver Screed Extension. When the laydown width requires a paver screed extension, use bolt-on screed extensions to extend the screeds, or use an approved mechanical screed extension device. When the screed is extended, add auger extensions to assure a length of no more than 18 inches from the auger to the end gate of the paver. Auger extensions may be omitted when paving variable widths. Ensure the paver is equipped with tunnel extensions when the screed and augcrs are extended. f. 30 - 45 Degree Wedge. When shown on/required by the plans, equip the paver to ensure a 30 degree minimum up to a 45 degree maximum wedge along the outside edge of the roadway (measured from the horizontal plane) is in place after final compaction on the final surface course. Use an approved mechanical device that will: · Apply compactive effort to the asphalt mixture to eliminate objectionable voids as the mixture passes through the wedge device · Produce a wedge with a unifonn texture, shcpe, and density while automatically adjusting to varying heights encountered along the roadway shoulder. . NOTE: Do not use extendible strike-off devices instead of approved screed extensions. Only use a strike-off device in areas that would normally be luted in by hand labor. 4. Compaction Equipment Section 400-Hot Mix Asphaltic Concrete Construction Ensure that the compaction equipment is in good mechanical condition and can compact the mixture to the required density. The compaction equipment number, type, size, operation, and condition is subject to the Engineer's approval. 400.3.03 Preparation A. Prepare Existing Surface Prepare the existing surface as follows: 1. Clean the Existing Surface. Before applying hot mix asphaltic concrete pavement, clean the existing surface to the Engineer's satisfaction. 2. Patch and Repair Minor Defects Before placing leveling course: a. Correct potholes and broken areas that require patching in the existing surface and base as directed by the Engineer. b. Cut out, trim to vertical sides, and remove loose material from the areas to be patched. c. Prime or tack coat the area after it has been cleaned. Compact patches to the Engineer's satisfaction. Material for patches does not require a job mix formula, but shall meet the gradation range shown inSection 828. The Engineer must approve the asphalt content to be used. 3. Apply Bituminous Tack Coat Apply the tack coat according to Section 413. The Engineer will determine the application rate, which must be within the limitations Table 2. Table 2-Application Rates for Bituminous Tack, gallyd2 (L1m2) Minimum Maximum All Mixes * 0.04 (0.180) 0.06(0.270) *On thin leveling courses and freshly placed asphaltic concrete mixes, reduce the application rate to 0.02 to 0.04 gallyd' (0.09 to 0.18 Um'). B. Place Patching and Leveling Course 1. When the existing surface. is irregular, bring it to the proper cross section and grade with a leveling course of hot mix asphaltic concrete materials. 2. Place leveling at the locations and in the amounts directed by the Engineer. 3. Use leveling course mixtures that mt:et the requirements of the job mix formulas defined in: · Subsection 400.3.05.A. "Observe Composition of Mixtures" · Section 828 4. If the leveling and patching mix type is undesignated, determine the mix type by the thickness or spread rate according to Table 3. Table 3.,.-Leveling and Patching Mix Types Thickness Rate of Spread Up to 85 Ibs/yd' (45 kg/m') Type of Mix Up to 0.75 in (19 mm) 0.75 to 1.5 in (19 to 38 mm) 1.5 to 2 in (38 to 50 mm) 2 to 2.5 in (50 to 64 mm) Over 2.5 in (64 mm) 85 to 165 Ibs/yd'(45 to 90 kg/m') 165 to 220 Ibs/yd' (90 to 120 kg/m') 220 to 275 Ibs/yd' (120 to 150 kg/m') Over 275 Ibs/yd' (150 kg/m') 4.75 mm Mix or 9.5 mm Superpave Type I 9.5 mm Superpave Type II 12.5 mm Superpave * 19 mm Superpave * 25 mm Superpave Section 400-Hot Mix Asphaltic Concrete Construction * These mixtures may be used for isolated patches no more than 6 in. (ISO mm) deep and no more than 4 ft. (I.2 m) in diameter or length. 400.3.04 Fabrication General Provisions 10 I through 150. 400.3.05 Construction Provide the Engineer at least one day's notice prior to beginning construction, or prior to resuming production if operations have been temporarily suspended. A. Observe Composition of Mixtures 1. Calibration of plant equipment If the material changes, or if a component affecting the ingredient proportions has been repaired, replaced, or adjusted, check and recalibrate the proportions. Calibrate as follows: a. Before producing mixture for the Project, calibrate by scale weight the electronic sensors or settings for proportioning mixture ingredients. b. Calibrate ingredient proportioning for all rates of production. 2. Mixture control Compose hot mix asphaltic concrete from a uniform mixture of aggregates, bitumilOus material, and if required, hydrated lime, mineral filler, or other approved additive. Make the constituents proportional to produce mixtures that meet the requirements inSection 828. The general composition limits prescribed are extreme ranges within which the job mix formula must be established. Base mixtures on a design analysis that meets the requirements of Section 828. Ensure that the field performance of the in-place mixtures meet the requirements of Section 828.2.B for Permeability, Moisture Susceptibility, Rutting Susceptibility and Fatigue. The in-place mixtures will be subject to testing for compliance with requirements of Section 828.2.B under the follov.;ing conditions: · Deviates greater than 10 percent on gradation on the mixture control sieves from the approved job mix formula based on acceptance or assurance samples. · Deviates greater than 0.7 percent in asphalt content from the job mix formula based on acceptance or assurance samples. · The calculated mean pavement air voids result in an adjusted pay factor greater than 0.80 or any single sub-lot results in mean pavement air voids exceeding 10.5 %. · Mix produced using an unapproved mix design or job mix formula. Remove and replace (at the Contractor's expense) any areas determined to not meet the requirements of Section. 828.2.B If control test results show that the characteristic tested does not conform to the job mix formula control tolerances given in Section 828, take immediate action to ensure that the quality control methods are effective. Control the materials to ensure that extreme variatims do not occur. Maintain the gradation within the composition limits in Section 828. B. Prepare Bituminous Material Uniformly heat the bituminous material to the temperature specified in the job mix formula with a tolerance of:l: 20 OF (:I: looe). C. Prepare the Aggregate Prepare the aggregate as follows: I. Heat the aggregate for the mixture, and ensure a mix temperature within the linits of the job mix formula. Section 400-Hot Mix Asphaltic Concrete Construction 2. Do not contaminate the aggregate with fuel during heating. 3. Reduce the absorbed moisture in the aggregate until the asphalt does not separate from the aggregate in the prepared mixture. If this problem occurs, the Engineer will EStablish a maximum limit for moisture content in the aggregates. When this limit is established, maintain the moisture content below this limit. D. Prepare the Mixture Proportion the mixture ingredients as necessary to meet the required job mix formula. Mk until a homogenous mixture is produced. I. Add Hydrated Lime When hydrated lime is included in the mixture, add it at a rate specified inSection 828 and the job mix formula. Use methods and equipment for adding hydrated lime according to Subsection 400.3.02.B.6. "Hydrated Lime Treatment System." Add hydrated lime to the aggregate by using Method A or B a; follows: Method A-Dry Fonn-Add hydrated lime in its dry form to the mixture as follows, according to the type of plant: a. Batch Type Asphalt Plant: Add hydrated lime to the mixture in the weigh hopper or as approved and directed by the Engineer. b. Continuous Plant Using Pugmill Mixer: Feed hydrated lime into the hot aggregate before it is introduced into the mixer so that dry mixing is complete before the bituminous material is added. c. Continuous Plant Using Drier-Drum Mixer: Add hydrated lime so that the lim: will not become entrained into the air stream of the drier and so that thorough dry mixing will be complete before the bituminous material is added. Method B-Lime/Water Sluny-Add the required quantity of hydrated lime (based on dry weight) in lime/water sluny form to the aggregate. This solution consists of lime and water in concentrations as directed by the Engineer. Equip the plant to blend and maintain the hydrated lime in suspension and to mix it with the aggregates uniformly in the proportions specified. 2. Add Gilsonite Modifier When required, add the Gilsonite modifier to the mixture at a rate such that eight percent by weight of the asphalt cement is replaced by Gilsonite. Use either PG 64-22 or PG 67-22 asphalt cement as specified in Subsection 820.2.0 I. Provide suitable means to calibrate and check the rate of Gilsonite being added. Introduce Gilsonite modifier by either of the following methods. a. For batch type plants, incorporate Gilsonite into the pugmill at the beginning of the dry mixing cycle. Increase the dry mix cycle by a minimum of 10 seconds after the Gilsonite is added and prior to introduction of the asphalt cement. For this method, supply Gilsonic in plastic bags to protect the material during shipment and handling and store the modifier in a waterproof environment. The bags shall be capable of being completely melted and uniformly blended into the combined mixture. Gilsonite may also be added through a mineral filler supply system as described in Subsection 400.3.02.B.5. "Mineral Filler Supply System." The system shall be capable of injecting the modifier into the weigh hopper near the center of the aggregate batching cycle so the material can be accurately weighed. b. For drum drier plants, add Gilsonite through the recycle ring or through an acceptable means which will introduce the Gilsonite prior to the asphalt cement injection point. The modifier shall be proportimately fed into the drum mixer at the required rate by a proportioning device which shall be accurate within:t 10 percent of the amount required. The entry point shall be away from flames and ensure the Gilsonite will not be caught up in the air stream and exhaust system. 3. Materials from Different Sources Do not use mixtures prepared from aggregates from different sources intermittently. This will cause the color of the finished pavement to vary. E. Observe Weather Limitations Do not mix and place asphaltic concrete if the existing surface is wet or frozen. Follow the temperature guidelines in the following table: Section 400-Hot Mix Asphaltic Concrete Construction Table 4-Lift Thickness Table Lift Thickness Minimum Temperature 1 in (25 mm) or less 1.1 to 2 in (26 mm to 50 mm) 2.1 to 3 in (51 mm to 75 mm) 3.1 to 4 in (76 mm to 100 mm) 4.1 to 8 in (101 mm to 200 mm) 55 of (13 OC) 45 of (8 OC) 40 of (4 OC) 35 of (2 OC) 32 of (0 oc) and rising. Base Material must not be frozenl F. Perform Spreading and Finishing Spread and finish the course as follows: 1. Determine the course's maximum compacted layer thickness by the type mix being used according to Table 5. Mix Type Minimum Layer Maximum Layer Maximum Total Thickness Thickness Thickness 25 mm Superpave 21/2 in (64 mm) 4 in (100 mm)" - 19 mm Superpave 1 3/4 in (44 mm) 3 in (75 mm) " - 12.5 mm Superpave 1 3/8 in (35 mm) 2 1/2 in (64 mm)" 8 in (200 mm) 9.5 mm Superpave Type II 1 1/8 in.(28 mm) 1 1/2 in (38 mm) 4 in (100 mm) 9.5 mm Superpave Type I 7/8 in (22 mm) 1 1/4 in (32 mm) 4 in (100 mm) 4.75 mm Mix 3/4 in (19 mm) 1 1/8 in (28 mm) 2 in (50 mm) "Allow up to 6 in (150 mm) per lift on trench widening. Place 9.5 mm Superpave and 12.5 mm Superpave up to 4 in (100 mm) thick for driveway and side road transition. Table 5-Maximum Layer Thickness 2. Unload the mixture into the paver hopper or into a device designed to receive the mixture from delivery vehicles. 3. Except for leveling courses, spread the mixture to the loose depth for the compacted thickness or the spread rate. Use a mechanical spreader true to the line, grade, and cross section specified. 4. For leveling courses, use a motor grader equipped with a spreader box and smooth tires to spread the material or use a mechanical spreader meeting the requirements in Subsection 400.3.02.C, "Equipment at Proiect Site." 5. Obtain the Engineer's approval for the sequence of paving operations, including paving the adjoining lanes. Minimize tracking tack onto surrounding surfaces. 6. Ensure that the outside edges of the pavement being laid ere aligned and parallel to the roadway center line. 7. For New Construction or Resurfacing Contracts that contain multiple lifts or courses, arrange the width of the individual lifts so that the longitudinal joints of each successive lift are offset from theprevious lift at least 1 ft (300 mm). This requirement does not apply to the lift immediately over thin lift leveling courses. Ensure that the longitudinal joint(s) in the surface course and the mix immediately undemeathasphaltic concrete OGFC or PEM are at the lane line(s). NOTE: Perform night work with artificial light provided by the Contractor and approved by the Engineer. 8. Where mechanical equipment cannot be used, spread and rake the mixture by hand. Obtain the Engineer's approval of the operation sequence, including compactive methods, in these areas. 9. Keep small hand raking tools clean and free from asphalt build up. Do not use fuel oil or other hannful solvents to clean tools during the work. 10. Do not use mixture with any of these characteristics: Section 400-Hot Mix Asphaltic Concrete Construction · Segregated · Nonconforming temperature · Deficient or excessive asphalt cement content · Otherwise unsuitable to place on the roadway in the work I I. Remove and replace mixture placed on the roadway that the Engineer determines has unacceptable blemish levels from segregation, streaking, pulling and tearing, or other characteristics. Replace with acceptable mixture at the Contractor's expense. Do not continually place mixtures with deficiencies. Do not place subsequent course lifts over another lift or courses placed on the same day while the temperature of the previously placed mix is 140 OF (60 oc) or greater. 12. Obtain the Engineer's approval of the material compaction equipment. Perform the rolling as follows: a. Begin the rolling as close behind the spreader as possible without causing excessive distortion of the asphaltic concrete surface. b. Continue rolling until roller marks are no longer visible. c. Use pneumatic-tired rollers with breakdown rollers on all courses except asphaltic concrete OGFC, PEM and SMA or other mixes designated by the Engineer. 13. If applicable, taper or "feather" asphaltic concrete from full depth to a depth no greater than 0.5 in (13 mm) along curbs, gutters, raised pavement edges, and areas where drainage characteristics of the road must be retained.The Engineer will determine the location and extent of tapering. G. Maintain Continuity of Operations Coordinate plant production, transportation, and paving operations to maintain a continuous operation. If the spreading operations are interrupted, construct a transverse joint if the mixture immediately behind the paver screed cools to less than 250 OF (120 OC). H. Construct the Joints I. Construct Transverse Joints a. Construct transverse joints to facilitate full depth exposure of the course before resuming phcement of the affected course. b. Properly clean and tack the vertical face of the transverse joint before placing additional material. , NOTE: Never burn or heat the joint by applying fuel oil or other volatile materials. c.. Straightedge transverse joints immediately after forming the joint. d. Immediately correct any irregularity that exceeds 3116 in. in 10 ft (5 mm in 3 m). 2. Construct Longitudinal Joints Clean and tack the vertical face of the longitudinal joint before placing adjoining material. Construct longitulinal joints so that the joint is smooth, well sealed, and bonded. I. Protect the Pavement Protect sections of the newly finished pavement from traffic until the traffic will not mar the surface or alter the surface texture. If directed by the Engineer, u~ artificial methods to cool the newly finished pavement to open the pavement to traffic more quickly. J. Modify the Job Mix Formula If the Engineer determines that undesirable mixture or mat characteristics are being obtained, the job mix formula may require immediate adjustment. 400.3.06 Quality Acceptance A. Acceptance Plans for Gradation and Asphalt Cement Content The Contractor will randomly sample and test mixtures on a lot basis. The Department will monitor the Contractor testing program and perform comparison and quality assurance testing. I. Determine Lot Amount Section 400-Hot Mix Asphaltic Concrete Construction A lot consists of the tons (megagrams) of asphaltic concrete produced and placed each production day. If this production is less than 500 tons (500 Mg), or its square yard (meter) equivalent, p-oduction may be incorporated into the next working day. The Engineer may tenninate a lot when a pay adjustment is imminent if a plant or materials adjustment resulting in a probable correction has been made. Tenninate all open lots at the end of the mond} except for materials produced and placed during the adjustment period. If the final day's production does not constitute a lot, the production may be included in the lot for the previous day's run; or, the Engineer may treat the production as a separate lot with a corresponding lower number of tests. 2. Detennine Lot Acceptance If the Engineer detennines that the material is not acceptable to leave in place, the materials shall be removed and replaced at the Contractor's expense. 3. Provide Quality Control Program Provide a Quality Control Program as established in SOP 27 which includes: · Assignment of quality control responsibilities to specifically named individuals who have been certified by the Office of Materials and Research · Provisions for prompt implementation of control and corrective measures · Provisions for communication with Project Manager, Bituminous Technical Services Engineer, and Testing Management Operations Supervisor at all times · Provisions for reporting all test results daily through the Offce of Materials and Research computerized Field Data Collection System; other checks, calibrations and records will be reported on a fonn developed by the Contractor and will be included as part of the project records · Notification in writing of any change in quality control personnel a. Certification Requirements: · Use laboratory and testing equipment certified by the Department. (Laboratories which participate in and maintain AASHTO accreditation for testing asphaltic concrete mixtures will be acceptable in leu of Departmental certification.) · Provide certified quality control personnel to perfonn the sampling and testing. A Quality Control Technician (QCT) may be certified at three levels: I) Temporary Certification - must be a technician trainee who shall be given direct oversight by a certified Level I or Level 2 QCT while perfonning acceptance testing duties during the first 5 days of training. The trainee must complete qualification requirements within 30 production days after being granted temporary certifICation. A trainee who does not become qualified within 30 production days will not be re-eligible for temporary certification. A certified Level I or Level 2 QCT shall be at the plant at all times during production and shipment of mixture to monitor work of the temporarily certified technician. 2) Level I - must demonstrate they are competent in perfonning the process control and acceptance tests and procedures related to hot mix asphalt production and successfully pass a written exam. 3) Level 2 - must meet Level I requirements and must be capable of and responsible for making process control adjustments, and successfully pass a written exam. · Technician certification is valid for 3 years from the date on the technician's certificate unless revoked or suspended. Eligible technicians may become certified through special training and testing approved by the Office of Materials and Research. Technicians who lose their certification due to falsification oftest data will not be eligible for recertification in the fuure unless approved by the State Materials and Research Engineer. b. Quality Control Management 1) Designate at least one Level 2 QCT as manager of the quality control operation. The Quality Control Manager shall meet the following requirements: · Be accountable for actions of other QCT personnel · Ensure that all applicable sampling requirements and frequencies, test procedures, and Standard Operating Procedures are adhered to · Ensure that all reports, charts, and other documentation is completed as required 2) Provide QCT personnel at the plant as follows: Section 400-Hot Mix Asphaltic Concrete Construction · If daily production for all mix types is to be greater than 250 tons (megagrams), have a QCT person at the plant at all times during production and shipment of mixture until all required acceptance tests have been completed · If daily production for all mix types will not be greater than 250 tons (megagrams) a QCT may be responsible for conducting tests at up to two plants, subject to random number sample selection · Have available at the plant or within immediate contact by phone or radio a Level 2 QCT responsible for making prompt process control adjustments as necessary to correct the mix 3) Sampling, Testing, and Inspection Requirements. Provide all sample containers, extractants, fonns, diaries, and other supplies subject to approval of the Engineer. Perfonn daily sampling, testing, and inspection of mixture production that meets the following requirements: (a) Randomly sample mixtures according toGSP IS, and GDT 73 (Method C) and test on a lot basis. In the event less than the spec,ified number of samples are taken, obtain representative 6 in (150 mm) cores from the roadway at a location where the load not sampled was placed. Take enough cores to ensure minimum sample size requirements are met for each sample needed. (b) Maintain a printed copy of the computer generated random sampling data as a part of the project records. (c) Perfonn sampling, testing, and inspection duties ofGSP 21. (d) Perfonn extraction or ignition test (GDT 83 or GDT 125) and extraction analysis (GDT 38). If the ignition oven is used, a printout of sample data including weights shall become a part of the project records. For asphalt cement content only, digital printouts of liquid asphalt cement weights maybe substituted in lieu of an extraction test for plants with digital recorders. Calculate the asphalt content from the ticket representing the mixture tested for gradation. (e) Save extracted aggregate, opposite quarters, and remaining material (for possible referee testing) of each sample as follows: · Store in properly labeled, suitable containers · Secure in a protected environment · Store for three working days. If not obtained by the Department, within three days they may be discarded. (f) Add the following infonnation on load tickets from which a sample or temperature check istaken: · Mixture temperature · Signature of the QCT person perfonning the testing (g) Calibrate the lime system when hydrated lime is included in the mixture: · Perfonn a minimum of twice weekly during production · Post results at the plant for review · Provide records of materials invoices upon request (including asphalt cement, aggregate, hydrated lime, etc.) (h) Take action if acceptance test results are outside Mixture Control Tolerances of Section 828. · One sample out of tolerance (I) Contact Level 2 - QCT to detennine if a plant adjustment is needed (2) Immediately run a process control sample. Make immediate plant adjustments if this sample is also out of tolerance (3) Test additional process control samples as needed to ensure corrective action taken appropriately controls the mixture · Two consecutive acceptance samples of the same mix type out of tolerance regardless of Lot or mix design level, or three consecutive acceptance samples out of blerance regardless of mix type Section 400-Hot Mix Asphaltic Concrete Construction (1) Stop plant production immediately (2) Reject any mixture already in storage that: · Deviates more than 10 percent in gradation from the job mix formula based on the acceptance sample · Deviates more than 0.7 percent in asphalt content from the job mix formula based on the acceptance sample (3) Make a plant correction to any mix type out of tolerance prior to resuming production · Do not send any mixture to the project before test results of a process control sample meets Mixture Control Tolerances · Reject any mixture produced at initial restarting that does not meet Mixture Control Tolerances 4) Comparison Testing and Quality Assurance Program Periodic comparison testing by the Department will be required of each QCT to monitor consistency of equipment and test procedures. The Department will take independent samples to monitor the Contractor's quality control program. a) Comparison Sampling and Testing Retain samples for comparison testing and referee testing if needed as described inSubsection 400.3.06.A.3.b.3. Discard these samples only if the Contractor's acceptance test results meet a 1.00 pay factor and the Department does not procure the samples within three working days. The Department will test comparison samples on a random basis. Results will be compared to the respective contractor acceptance tests and the maximum difference shall be as follows: Table 6-Allowable Percent Difference Between Department and Contractor Acceptance Tests SIEVE SIZE SURFACE SUB-SURFACE 1/2 in. (12.5 mm) 4.0% 3/8 in. (9.5 mm) 3.5% 4.0% No.4 (4.75 mm) 3.5% 3.5% NO.8 (2.36 mm) 2.5% 3.0% No. 200 (75 11m) 2.0% 2.0% A.C. 0.4% 0.5% (1) If test comparisons are within these tolerances: · Continue production · Use the Contractor's tests for acceptance of the lot (2) If test comparisons are not within these tolerances: · Another Departmental technician will test the corresponding referee sample · Results of the referee sample will be compared to the respective contractor and Departmental tests using the tolerance for comparison samples given above. (a) If referee test results are within the above tolerances when compared to the Contractor acceptance test, use the Contractor's test for acceptance of the effected lot. (b) If referee test results are not within the above tolerances when compared to the Contractor acceptance test, the Department will review the Contractor's quality control methods and determine if a thorough investigation is needed. b) Quality Assurance Sampling and Testing Section 400-Hot Mix Asphaltic Concrete Construction (I) Randomly take a minimum of two quality assurance samples from the lesser of five days or five lots of production regardless of mix type or number of projects. (2) Compare test deviation from job mix formula to Mixture Control Tolerances inSection 828. If results are outside these tolerances, another sample from the respective mix may be taken. NOTE: For leveling courses less. than 110 Ib/yd' (60 kg/m') that have quality assurance test results outside the Mixture Control Tolerances of Section 828, use the Department's test results only. If test results of the additional sample are not within Mixture Control Tolerances, the Department will take the following action: · Take random samples from throughout the lot as inSubsection 400.3.06.A.3.b.3 and use these test results for acceptance and in calculations for the monthly plant rating. Determine if the Contractor's quality control program is satisfactory and require prompt corrective action by the Contractor if specification requirements are not being met. · Determine if the QCT has not followed Departmental procedures or has provided erroneous information. · Take samples of any in-place mixture represented by unacceptable QCT tests and use the additional sample results for acceptance and in calculations for the monthly plant rating. The Contractor QCT tests will not be included in the monthly plant rating. B. Com paction Determine the mixture compaction using eitherGDT 39 or GDT 59. The compaction is accepted in lots defined in Subsection 400.3.06. A "Acceptance Plans for Gradation and Asphalt Cement Content" and is within the same lot boundaries as the mixture acceptance. 1. Calculate Pavement Mean Air Voids The Department will calculate the pavement air voids placed within each lot as follows: a. One test per sub-lot. · Lots:::: 500 tons of mix should be divided into 5 sub-lots of equal distance. · Lots < 500 tons of mix should be comprised ofa sub-lot or sub-lots consisting of up to 100 tons of mix each. There may be less than 5 sub-lots. b. A verage the results of all tests run on randomly selected sites in that lot. c. Select the random sites using GDT 73. Density tests are not required for asphaltic concrete placed at 125 lbs/yd2 (68 kglm2) or less, 4.75 mm mix and mixes placed as variable depth or width leveling. Compact these courses to the Engineer's satisfaction. Density tests will not be performed on turn-outs and driveways. The targeted maximum Pavement Mean Air Void content for all Superpave mixtures is 5.0 percent. Ensure that the maximum Pavement Mean Air Voids for all Superpave mixtures does not exceed 78 percent. The maximum Pavement Mean Air Voids for 2 foot shoulder widening is 9.0 percent. The adjustment period for density shall be three lots or three production days, whichever is less, in order for the contractor to ensure maximum compactive effort has been achieved which will yield no more than the specified maximum allowed Mean Air Voids. If the contractor needs to adjust the mixture to improve density results, a change in the job mix formula may be requested for approval during the adjustment period so long as the followiIE values are not exceeded: · Coarse pay sieve :t 4% · No.8 (2.36 mm) sieve :t 2% · No. 200 (75 /lm) sieve :t 1% · Asphalt Content :t 0.2% · All value changes must still be within specification limits Section 400-Hot Mix Asphaltic Concrete Construction If the Office of Materials and Research is satisfied that the contraclor has exerted the maximum compactive effort and is not able to maintain Pavement Mean Air Voids at no more than 7&%, the Engineer may establish a maximum target for Pavement Mean Air Voids. If the Pavement Mean Air Voids within a Lot exceeds 7.8 (or 100% of the maximum target air voids, if established is not maintained); the Engineer may stop the paving operation until appropriate steps are taken by the Contractor to correct the deficiency. Upon approval of the Engineer, the paving operation may be restated but will be limited to a 1000 ft (300 m) test section to verify that the corrective action taken will result in satisfactory density. Continued operation may not be permitted if the Pavement Mean Air Voids fail to meet the specified density requiremens. 2. Obtain Uniform Compaction For a lot to be accepted for compaction, the air void range cannot exceed 4 percent for new construction or 5 percent for resurfacing projects. The range is the difference between the highest and lowest acceptance test resuts within the affected lot. C. Surface Tolerance In this Specification, pavement courses to be overlaid with an Open-Graded Friction Course or PEM are considered surface courses. Other asphalt paving is subject to straightedge and visual inspection and inegularity correction as shown below: I. Visual and Straightedge Inspection Paving is subject to visual and straightedge inspection during and after construction operations until Final Acceptance. Locate surface irregularities as follows: a. Keep a lOft (3 m) straightedge near the paving operation to measure surface irregularities on courses. Provide the straightedge and the labor for its use. b. Inspect the base, intermediate, and surface course surfaces with the straightedge to detect irregularities. c. Correct irregularities that exceed 3/16 in. in 10 ft (5 mm in 3 m) for base and intermediate courses, and 1/8 in. in lOft (3 mm in 3 m) for surface courses. Mixture or operating techniques will be stopped if irregularities such as rippling, tearing, or pulling OCClf and the Engineer suspects a continuing equipment problem. Stop the paving operation and correct the problem. D. Reevaluation of Lots Reevaluation of Lots and acceptance will be based on Department evaluations. The Department will be reimbursed by the Contractor for all costs of these evaluations. Request for reevaluation shall be made within 5 working days of notification of the lot results. E. Segregated Mixture Prevent mixture placement that yields a segregated mat by following production, storage, bading, placing, and handling procedures. Also, make needed plant modifications and provide necessary auxiliary equipment. (See Subsection 400.1.0 I, "Definitions.") If the mixture is segregated in the finished mat, the Departm61t will take actions based on the degree of segregation. The actions are described below. I. Unquestionably Unacceptable Segregation When the Engineer determines that the segregation in the finished mat is unquestionably unacceptable, follow these measures: a. Suspend Work and require the Contractor to take positive corrective action. The Department will evaluate the segregated areas to determine the extent of the corrective work to the in-place mat as follows: · Perform extraction and gradation analysis by taking6 in (150 mm) cores from typical, visually unacceptable segregated areas. · Determine the corrective work according to Subsection 400.3.06.E.3. b. Require the Contractor to submit a written plan of measures and actions to preventfurther segregation. Work will not continue until the plan is submitted to and approved by the Department. Section 400-Hot Mix Asphaltic Concrete Construction c. When work resumes, place a test section not to exceed 500 tons (500 Mg) of the affected mixture for the Department to evaluate. If a few loads show 1hat corrective actions were not adequate, follow the measures above beginning with step l.a. above. If the problem is solved, Work may continue. 2. Unacceptable Segregation Suspected When the Engineer observes segregation in the fmished mat and suspects thatit may be unacceptable, follow these measures: a. Allow work to continue at Contractor's risk. b. Require Contractor to immediately and continually adjust operation until the visually apparent segregated areas are eliminated from the finished mat. The DepartmeIt will immediately investigate to determine the severity of the apparent segregation as follows: · Take 6 in (ISO mm) cores from typical areas of suspect segregation. · Test the cores for compliance with the mixture control tolerances in Section 828. When these tolerances are exceeded, suspend work for corrective action as outlined in Subsection 400.3.06.E.3. 3. Corrective Work a. Remove and replace (at the Contractor's expense) any segregated area where the gradation on the control sieves is found to vary 10 percent or more from the approved job mix formula, the asphalt cement varies 1.0% or more from the approved job mix formula, or if in-place air voids exceed 12.5% based on GDT 39. The control sieves for each mix type are shown in Subsection 400.5.01.B "Determine Lot Acceptance." b. Subsurface mixes. For subsurface mixes, limit removal and replacement to the full lane width and no less than lOft. (3 m) long and as approved by the Engineer. c. Surface Mixes. For surface mixes, ensure that removal and replacement is not less than the full width of the affected lane and no less than the length of the affected areas as determined by theEngineer. Surface tolerance requirements apply to the corrected areas for both subsurface and surface mixes. 400.3.07 Contractor Warranty and Maintenance A. Contractor's Record Maintain a dated, written record of the most recent plant calibration. Keep this record available for the Engineer's inspection at all times. Maintain records in the form of: . Graphs · Tables · Charts · Mechanically prepared data 400.4 Measurement Thickness and spread rate tolerances for the various mixtures are specified in Subsection 400A.A.2.b. Table II. Thickness and Spread Rate Tolerance at Any Given Location. These tolerances are applied as outlined below: A. Hot Mix Asphaltic Concrete Paid for by Weight I. Plans Designate a Spread Rate a. Thickness Determinations. Thickness determinations are not required when the Plans designate a spread rate per square yard (meter). If the spread rate exceeds the upper limits outlined in the Subsection 400A.A.2.b. Table I L "Thickness and Spread Rate Tolerance at Any Given Location", the mix in excess will not be paid for. I f the rate of spread is less than the lower limit, correct the deficient course by overlaying the entire lot. The mixture used for correcting deficient areas is paid for at the Contract Unit Price of the course being corrected and is subject to the Mixture Acceptance Schedule-Table 9 or 10. b. Recalculate the Total Spread Rate. After the deficient hot mix course has been corrected, the total spread rate for that lot is recalculated, and mix in excess of the upper tolerance limit as outlined in the Subsection 400A.A.2.b, Table II. "Thickness and Spread Rate Tolerance at Any Given Location" is not paid for. Section 400-Hot Mi?C Asphaltic Concrete Construction The quantity of material placed on irregular areas such as driveways, turnouts, intersections, feather edge section, etc., is deducted from the final spread determination for each lot. 2. Plans Designate Thickness If the average thickness exceeds the tolerances specified in the Subsection 400.4.A.2.b, Table 11. "Thickness and Spread Rate Tolerance at Any Given Location", the Engineer shall take cores to determine the area of excess thickness. Excess quantity will not be paid for. If the average thickness is deficient by more than the tolerances specified in the Thickness and Spread Rate Tolerance at Any Given Location table below, the Engineer shall take additional cores to determine the area of deficient thickness. Correct areas with thickness deficiencies as follows: a. Overlay the deficient area with the same mixture type being corrected or with an approved suface mixture. The overlay shall extend for a minimum of 300 ft (90m) for the full width of the course. b. Ensure that the corrected surface course complies with Subsection 400.3.06.C.1. "Visual and Straightedge Inspection." The mixture required to correct a deficient area is paid for at the Contract Unit Price of the course being corrected. The quantity of the additional mixture shall not exceed the required calculated quantity used to increase the average thickness of the overlaid section to the maximum tolerance allowed under the following table. Table 11- Thickness and Spread Rate Tolerance at Any Given Location Course Thickness Specified t 0.5 in (t13 mm) t 0.25 in (t 6 mm) t 0.5 in (t13 mm) Spread Rate Specified +40 Ibs, -50 Ibs (+20 kg, -30 kg) +20 Ibs, -251bs (+10 kg, -15 kg) +40 Ibs, -50 Ibs (+20 kg, -30 kg) Asphaltic concrete base course Intermediate and/or wearing course Overall of any combination of 1 and 2 Note 1: Thickness and spread rate tolerances are provided to allow normal variations within a given jot. Do not continuously operate at a thickness of spread rate not specified. When the Plans specifY a thickness, the Engineer may take as many cores as necessary to determine the average thickness of the intermediate or surface course. The Engineer shall take a minimum of one core per 1,000 ft (300 m) per two lanes of roadway. Thickness will be determined by average measuremerts of each core according to GOT 42. If the average exceeds the tolerances specified in the Subsection 400.4.A.2.b. Table 11. "Thickness and Spread Rate Tolerance at Anv Given Location", additional cores will be taken to determine the area of excess thickness and excess tonnage will not be paid for. B. Hot Mix Asphaltic Concrete Paid for by Square Yard (Meter) 1. The thickness of the base course or the intermediate or surface course will be determined by the Department by cutting cores and the thickness will be determined by averaging the measurements of each core. 2. If any measurement is deficient in thickness mcre than the tolerances given in the table above, additional cores will be taken by the Department to determine the area of thickness deficiency. Correct thickness deficiency areas as follows: a. Overlay the deficient area with the same type mixtures being corected or with surface mixture. Extend the overlay at least 300 ft (90 m) for the full width of the course. b. Ensure that the corrected surface course complies with Subsection 400.3.06.C.1. Visual and Straightedge Inspection" . c. The mixture is subject to the Mixture Acceptance Schedule-Table 9 or 10. 3. No extra payment is made for mixtures used for correction. 4. No extra payment is made for thickness in excess of that specified. Section 400-Hot Mix Asphaltic Concrete Construction NOTE: Thickness tolerances are provided to allow normal variations within a given lot. Do not continuously operate at a thickness not specified. C. Asphaltic Concrete Hot mix asphaltic concrete, complete in place and'accepted, is measured in tons (megagrams) or square yard (meters) as indicated in the Proposal. Ifpayment is by the ton (megagram), the actual weight is determined by weighing each loaded vehicle on the required motor truck scale as the material is hauled to the roadway, or by using recorded weights if a digital recording device is used. The weight measured includes all materials. No deductions are made for the weight of the individual ingredients. The actual weight is the pay weight except when the aggregates used have a combined bulk specific gravity greaterthan 2.75. In this case the pay weight is determined according to the following formula: / % Aggregate x 2.75 TI =T x %AC + +%y -< combined bulk Specific Gravity 100 Where: T1 T= Pay weight, tonnage (Mg) Actual weight Percent asphalt cement by weight of total mixture Percent aggregate by weight of total mixture Calculated combined bulk specific gravity of various mineral aggregates used in the mixture %AC= % Aggregate = Combined Bulk Sp. Gr.= %y= Percent hydrated lime by weight of mineral aggregate D. Bituminous Material Bituminous material is not measured for sepa-ate payment. E. Hydrated Lime When hydrated lime is used as an anti-stripping additive, it is not measured for separate payment. F. Field Laboratory The field laboratory required in this Specification is not measured for separate payment. G. Asphaltic Concrete Leveling Payment of hot mix asphaltic concrete leveling, regardless of the type mix, is full compensation for furnishing materials, bituminous materials, and hydrated lime (when required) for patching and repair of minor defects, surface preparation, cleaning, hauling, mixing, spreading, and rolling. Mixture for leveling courses is subject to the acceptance schedule as stated in Subsection 400.3.06.A and Subsection 400.3.06.B. H. Asphaltic Concrete Patching Hot mix asphaltic concrete patching, regardless of the type mix, is paid for at the Contract Unit Price per ton (Megagram), complete in place and accepted. Payment is full compensation for: · Furnishing materials such as bituminous material md hydrated lime (when required) · Preparing surface to be patched Section 400-Hot Mix Asphaltic Concrete Construction . Cutting areas to be patched, trimmed, and cleaned . Hauling, mixing, placing, and compacting the materials 400.4.01 Limits When the asphaltic concrete is paid for by the square yard (meter) and multiple lifts are used, the number and thickness of the lifts are subject to the Engineer's approval and are used to prorate the pay factor for the affected roadway section. 400.5 Payment Hot mix asphaltic concrete of the various types are paid for at tm Contract Unit Price per ton (megagram) or per square yard (meter). Payment is full compensation for furnishing and placing materials including asphalt cement, hydrated lime when required, approved additives, and for cleaning and repairing, preparing surnces, hauling, mixing, spreading, rolling, and performing other operations to complete the Contract Item. Payment will be made under: Item No. 400 Asphaltic concrete ~ Suprpave, qroup-blend, Including polymer-modified Per ton (megagram) bituminous materials and hydrated lime Item No. 400 Asphaltic concrete ~, Superpave, qroup-blend, including bituminous Per ton (megagram) materials and hydrated lime Item No. 400 Asphaltic concrete ~ Superpave, qroup-blend, Including bituminous Per ton (megagram) materials, Gilsonite modifier, and hydrated lime / Item No. 400 inches asphaltic concrete, ~ Superpave, qroup-blend including Per square yard (meter) bituminous materials, Gilsonite modifier and hydrated lime Item No. 400 Asphaltic concrete ~ Stone Matrix Asphalt, qroup-blend, including polymer- Per ton (megagram) modified bituminous materials and hydrated lime Item No. 400 Asphaltic concrete ~ OGFC, group 2 only, including bituminous materials Per ton (megagram) and hydrated lime Item No. 400 Asphaltic concrete ~ OGFC, qroup 2 only, including polymer-modified Per ton (megagram) bituminous materials and hydrated lime Item No. 400 Asphaltic concrete ~ Porous European Mix, 9.!:Q!m.l only. including Per ton (megagram) polymer-modified bituminous materials and hydrated lime 400.5.01 Adjustments A. Determine Lot Acceptance . The control sieves used in the mixture acceptance schedule for the various types of mix are indicated below: Control Sieves Used in the Mixture Acceptance Schedule Asphaltic concrete 25 mm Superpave 1/2 in., No.8 (12.5 mm, 2.36 mm) sieves and asphalt cement Asphaltic concrete 19 mm Superpave 3/8 in., No.8 (9.5 mm, 2.36 mm) sieves and asphalt cement Asphaltic concrete 12.5 mm Superpave 3/8 in., No.8 (9.5 mm, 2.36 mm) sieves and asphalt cement Asphaltic concrete 9.5 mm Superpave No.4, No.8 (4.75 mm, 2.36 mm) sieves and asphalt cement Asphaltic concrete 4.75 mm Mix No.8 (2.36 mm) sieve and asphalt cement The Department will perform the following tasks: 1. Determine the mean of the deviations from the job mix formula per test results per lot. Section 400-Hot Mix Asphaltic Concrete Construction 2. Determine this mean by averaging the actual numeric value of the individual deviations from the job mix formula; disregard whether the deviations are positive or negative anounts. C. Calculate Pavement Mean Air Voids The Department will determine the percent of maximum air voids for each lot by dividing the pavement mean air voids by the maximum pavement mean air voids acceptable. D. Asphaltic Concrete For Temporary Detours Hot mix asphaltic concrete placed on temporary detours that will not remain in place as part ofthe permanent pavement does not require hydrated lime. Hot mix used for this purpose is paid for at an adjusted Contract Price. Where the Contract Price of the asphaltic concrete for permanent pavement is let by the ton (megagram), the Contract Price for the asphaltic concrete placed on temporary detours is adjusted by subtracting $O.75/ton ($O.85/mg) of mix used. Where the Contract price of the mix in the permment pavement is based on the square yard (meter), obtain the adjusted price for the same mix used on the temporary detour by subtracting $O.04/yd2 ($0.05/ m2) per l-in (25-mm) plan depth. Further price adjustments required in Subsection 400.3.06, "Quality Acceptance," are based on the appropriate adjusted Contract Price for mix used in the temporary detour work. E. Determine Lot Payment If the Engineer determines that the material is not acceptable to leave in place, remove arrl replace the materials at the Contractor's expense. First Use Date 200 I Specification: November 18, 2005 Revised: August 9, 2006 Revised September 27, 2006 Revised: December 7, 2006 (Off System) Revised: February 22, 2007 (Off System) Revised: November 2,2007 (Off System) Revised: December 4, 2007 DEPARTMENT OF TRANSPORTATION STATE OF GEORGIA SPECIAL PROVISION Section 402-Hot Mix Recycled Asphaltic Concrete Delete Subsection 402.5 and substitute the following: 402.5 Payment The work perfonned and the materials furnished as described in this Specification will be paid for at the Contract Unit Price per ton (megagram). Payment is full compensation for providing materials, hauling and necessary crushing, processing, placing, rolling and fmishing the recycled mixture, and providing labor, tools, equipment, and incidentals necessary to complete the work, including hauling and stockpiling RAP or RAS material. Payment will be made under: Item No. Recycled asphaltic concrete _ mm Superpave, group-blend, Per ton (megagram) 402 including bituminous materials Item No. Recycled asphaltic concrete _ mm Superpave, group-blend, Per ton (megagram) 402 including bituminous materials and hydrated lime Item No. Recycled asphaltic concrete -'-- mm Superpave, group-blend, Per ton (megagram) 402 including polymer-modified bituminous materials and hydrated lime . Item No. Recycled asphaltic concrete _ mm Superpave, Type_, group- Per ton (megagram) 402 blend, including bituminous materials and hydrated lime Item No. Recycled asphaltic concrete mm mix, group-blend, Per ton (megagram) 402 including bituminous materials and hydrated lime Item No. in (mm) recycled asphaltic concrete !YlliZ Superpave, Per square yard 402 group-blend, including bituminous materials (meter) Item No. in (mm) recycled asphaltic concrete !YlliZ Superpave, Per square yard 402 group-blend, including bituminous materials and hydrated lime (meter) Item No. in (mm) recycled asphaltic concrete !YlliZ Superpave, Per square yard 402 group-blend, including polymer-modified bituminous materials and (meter) hydrated lime Item No. in (mm) recycled asphaltic concrete mm Per square yard 402 mix, group-blend, including bituminous materials and hydrated lime (meter) Item No. Recycled asphaltic concrete patching including bituminous Per ton (megagram) 402 materials Item No. Recycled asphaltic concrete patching including bituminous Per ton (megagram) 402 materials and hydrated lime Item No. 402 Recycled asphaltic concrete leveling including bituminous materials Per ton (megagram) Item No. 402 Recycled asphaltic concrete leveling including bituminous materials Per ton (megagram) and hydrated lime 402.5.01.Adjustments A. Determine Lot Acceptance The control sieves used in the mixture acceptance schedule for the various types of mix are indicated below: Control Sieves Used in the Mixture Acceptance Schedule Asphaltic concrete 25 mm Superpave 1/2 in., No.8 (12.5 mm, 2.36 mm) sieves and asphalt cement Asphaltic concrete 19 mm Superpave 3/8 in., NO.8 (9.5 mm, 2.36 mm) sieves and asphalt cement Asphaltic concrete 12.5 mm Superpave 3/8 in., NO.8 (9.5 mm, 2.36 mm) sieves and asphalt cement Asphaltic concrete 9.5 mm Superpave No.4, NO.8 (4.75 mm, 2.36 mm) sieves and asphalt cement Asphaltic concrete 4.75 mm Mix NO.8 (2.36 mm) sieve and asphalt cement The Department will perform the following tasks: 1. Determine the mean of the deviations from the job mix formula per test results per lot. 2. Determine this mean by averaging the actual numeric value of the individual deviations from the job mix . formula; disregard whether the deviations are positive or negative amounts. B. Calculate Pavement Mean Air Voids The Department will determine the percent of maximum air voids for each lot by dividing the pavement mean air voids by the maximum pavement mean air voids acceptable. C. Asphaltic Concrete for Temporary Detours Hot mix asphaltic concrete placed on temporary detours that will not remain in place as part of the permanent pavement does not require hydrated lime. Hot mix used for this purpose is paid for at an adjusted Contract Price. Where the Contract Price of the asphaltic concrete for permanent pavement is let by the ton (megagram), the Contract Price for the asphaltic concrete placed on temporary detours is adjusted by subtracting $0.75/ton ($0.85/mg) of mix used. Where the Contract price of the mix in the permanent pavement is based on the square yard (meter), obtain the adjusted price for the same mix used on the temporary detour by subtracting $0.04/yd2 ($0.05/ m2) per I-in (25- mm) plan depth. Further price adjustments required in Subsection 400.3.06. "Quality Acceptance." are based on the appropriate adjusted Contract Price for mix used in the temporary detour work. D. Determine Lot Payment If the Engineer determines that the material is not acceptable to leave in place, remove and replace the materials at the Contractor's expense. Date: August 8, 2002 First Use Date 2001 Specifications: November I, 2002 DEPARTMENT OF TRANSPORTATION STATE OF GEORGIA SPECIAL PROVISION Section 802-Aggregates for Asphaltic Concrete Delete Subsection 802.2.0lA5. Dare August 8, 2002 First Use Date 2001 Specifications: Novemoo- 1,2002 GEORGIA DEPARTMENT OF TRANSPORTATION STATE OF GEORGIA SPECIAL PROVISION . Section 819-Fiber.Stabilizing Additives Delete Section 819: Page 1 First Use: February 03, 2006 Revised February 24, 2006 DEPARTMENT OF. TRANSPORTATION STATE OF GEORGIA Special Provision Section 828-Hot Mix Asphaltic Concrete Mixtures Delete Section 828 and substitute the following: 828.1 General Description This specification includes the requirements for hot mix asphaltic concrete mixtures, including: · Open-graded surface mixtures (OGFC and PEM) · Stone Matrix Asphalt mixtures (SMA) · Superpave mixtures · Fine-graded (4.75 mm) mixtures 828.1.01 Definitions The Nominal Maximum Sieve Size is one standard sieve size larger than the first sieve to retain more than ten percent of the aggregate, per AASHTO PP28. Mixture types in this section are identified according to Nominal Maximum Sieve Size. 828.1.02 Related References A. Standard Specifications Section 400-Hot Mix Asphaltic Concrete Construction Section 800-Coarse Aggregate Section 802-Aggregates for Asphaltic Concrete Section 819-Fiber Stabilizing Additives Section 820-Asphalt Cement Section 831-Admixtures Section 882-Lime Section 883-Mineral Filler B. Referenced Documents PP2 PP28 TP 8-94 T 112 T209 T305 T312 T-245 PS-129 SOP-36 SOP-2 SP GDT 56 GDT 66 GDT 114 GDT 115 GDT 123 ~ QPL2 QPL 7 QPL 26 QPL 41 QPL 77 QPL 81 828.2 Materials A. Requirements Use approved hot mix asphalt concrete mixtures that meet the following requiI:ements: 1. Produce each asphalt mixture according to a Job Mix Formula and Asphalt Mix Design approved by the Department. For submittal and approval of Job Mix Formulas, see Subsection 400.1. 2. Ensure that individual acceptance test results meet the Mixture Control Tolerances specified in the appropriate table below, Subsections 828.2.01 through 828.2.04. 3. Ensure thatthe Engineer approves all materials used to prepare and place the mixtures before incorporating them into the Work. Use only the ingredients listed in the approved Asphalt Mix Design and Job Mix Formula. For virgin aggregates use sources which meet the requirements of Section 802 and are listed in QPL 1 or QPL 2; for mixes in which local sand is permitted, use the approved sand source identified in the mix design. For mixtures containing Reclaimed Asphalt Pavement (RAP), use only RAP from the approved stockpile identified in the mix design. Use asphalt cement meeting the requirements of Section 820, from a source listed in QPL 7. . 4. Obtain approved Superpave mix designs and 4.75 mm mix designs from a mix design laboratory certified by the Department. Obtain approved mix designs for types PEM, OGFC, and SMA mixtures from the Department's Office of Materials and Research, which produces and furnishes these.mix designs. 5. Ensure that Superpave and 4.75 mm mix designs are designed in accordance with SOP-2SP ("Control of . Superpave Bituminous Mixture Designs") .andare approved by the Department as provided therein. Ensure that these mixes are designed by a laboratory and technician certified in accordance with SOP-36, ("Certification of Laboratories and Personnel for Design of S~perpave Asphalt Mixtures"). 6. Use only mixtures composed of the aggregate groups and blends indicated in the Proposal and Plans by their pay item designations, defined as follows.: Pay Item Designation Group I or II Group II only Blend I Allowable Aggregate Groups Group I, Group II, or Blend I Group II only Either 100% Group II material or a blend of Group I and Group II. Do notuse Group I material for more than 60%, by weight, of the total aggregate nor more than 50%, by weight, of the coarse aggregate fraction. 7. For patching or leveling use Group I, Group II, or Blend I. Mix types for patching and leveling are specified in Subsection 400.3.03.B. 8. Include lime (hydrated lime) from an approved source and meeting the requirements of Subsection 882.2.03 in all paving courses except as otherwise provided in the Contract. For a list of approved sources of lime, see QPL 41. a. Add lime to each mixture at the rate prescribed in the approved mix design. b. Mix designs using only virgin aggregate shall include lime at a minimum rate of 1.00 % of the total dry aggregate weight. Mix designs using RAP shall include lime at a minimum rate equal to 1.00 % of the virgin aggregate fraction plus 0.50 % of the aggregate in the RAP fraction. c. If necessary to meet requirements for mixture properties, and pursuant to an approved mix design, add more lime or add lime plus an approved Heat-Stable Anti-Stripping Additive that meets the requirements of Subsection 831.2.04. However, the Department will not make additional payment for these materials. For a list of sources of Heat-Stable Anti-Stripping Additives, see QPL 26. d. Where specifically allowed in the contract on LARP, airport, and parking lot projects, an approved Heat-Stable Anti-Stripping Additive that meets the requirements of Subsection 831.2.04 may be substituted for hydrated lime. In this case the mix gradation shall be adjusted as necessary to replace the lime with an equivalent volume offmes passing the 0.075 rom sieve. Add Heat-StableAnti- stripping Additive at a minimum rate of 0.5 percent of the asphalt cement portion. 9. Use performance grade PG67-22 asphalt cement in all mix designs and mixtures except as follows: a. For mixtures containing 25% or greater RAP, the Engineer will determine the performance grade to be . used. b. On PR, LARP, airport, and parking lot projects, PG 64-22 may be substituted for PG 67-22, with approval of the Office of Materials and Research, on roads having current ADT less than 2,000. c. Use only grade PG 76-22 in the following mixes: SMA, 12.5 rom PEM, 12.5 inm and 9.5 rom OGFC, 12.5 rom Superpave, excluding shoulder construction, on projects with ADT greater than 25,000; and in all mixtures for which polymer-modified asphalt is specified in the pay item. 10. Use oflocal sand is restricted as follows: a. Do not place mixtures containing local sand on the traveled way of the mainline or ramps of the Interstate System. Mixtures with local sand may be used for shoulder construction on these facilities. b. Local sand shall not constitute more than 20 % of the total aggregate weight of any mix design or production mix. c. Subject to the above limits, 19 rom, 12.5 rom, and 9.5 rom Superpave mix designs and 4.75 rom mix designs containing local sand may be used on projects with a currentADT riot exceeding 2,000. d. 25 rom Superpave mix designs containing not more than 20 % local sand may be used on all facilities except the main line and ramps of the Interstate System. e. Obtain local sand for use in asphalt mixtures from a source approved by the Department. f. Approval of local sand sources: The Department will sample, test, and approve sources of local sand. Localsand shall not contain more than 7.0 % clay by weight and shall be free of foreign substances, roots, twigs, and other organic matter. It shall be free of clay lumps, as determined by AASHTO T 112, and shall have a sand equivalent value exceeding 25%, as determined by GDT63. B. Design requirements and limits - all mix types 1. Design procedures: For all Superpave and 4.75 rom mixes, designers shall adhere to the Superpave System for Volumetric Design (AASHTO T 312 and AASHTO PP 2), as adapted in SOP-2SP. The Department will design open-graded mixes and Stone Matrix Asphalt (SMA) mixes according to GDT 114 and GDT 123, respectively. In all cases, the procedure for measuring Maximum Specific Gravity (Gmm) shall be AASHTOT 209. In addition to gradation and volumetric analysis, mix designs shall include the following performance tests, as applicable. · 9.5 mm Superpave 9.5rom Superpave mixes should specify "Type In or "Type II" mix design in the plans or contract documents. If "Mix Design Level A" is specified, ensure the Asphaltic Concrete meets the requirements of a "Type I" mix. If a "Mix Design Level B, C or D" is specified, ensure the Asphaltic Concrete meets the requirements of a "Type II" mix. · Other Superpave mixes No "Type" is required for other Superpave Asphaltic Concrete mixes (12.5 rum, 19 rum, or 25 nun). Any "Mix Design Levels A, B, C or D" specified in the plans or contract documents do not affect the current asphalt mix designs. 2. Permeability test: Superpave and Stone Matrix mix designs shall include testing according to ASTM PS- 129. Specimen air voids for this test shall be 6.0 :1:1.0 %. The average permeability of three specimens may not exceed 3.60 ft per day (125 x 1O-5cmper see). 3. Moisture susceptibility test: Mix designs of all types except open-graded surface mixes shall include testing for moisture susceptibility according to GDT 66. Specimen air voids for this test shall be 7.0 :1:1.0%. The minimum tensile splitting ratio is 0.80, except that a tensile splitting ratio of no less than 0.70 may be acceptable if all individual strength values exceed 100 psi (690 kPa). Average splitting strength of the three conditioned and three controlled samples shall be not less than 60 psi (415 kPa) for either group. . Retention of coating as determined by GDT 56 shall be not less than 95%. 4. Rutting susceptibility test. Mix designs of all types except Open-graded Surface Mixes (OGFC and PEM), and mixtures designed exclusively for trench widening shall include testing according to GDT 115. Design limits for this test are as follows: Specimen air voids for this test shall be 5.0:1: 1.0% for all mix types. Testing temperature shall be 640C (1470F) for all mix types except 25 nun Superpave mixes, which shall be tested at 490C (1200F). Maximum deformation shall be 5.0 nun for all mixes except 4.75 nun mix and 9.5 nun Type I Superpave mix. Maximum deformation for these mix types shall be 8.0 nun at 640C. 5. Fatigue testing: The Department may verify Superpave designs by fatigue testing according to AASHTO TP 8-94 or other procedure approved by the Department. 828.2.01 Open-Graded Surface Mixtures A. Requirements Use approved mixtures that meet the following mixture control tolerances and design criteria: Mixture Design Gradation Limits, % Passing Sieve Size Control 9.5 mm OGFC 12.5 mm OGFC 12.5 mm PEM Tolerance, % 3/4 in (19 mm) sieve :t:0.0 100 100 1/2 in (12.5 mm) sieve :t:6.1 100. 85-100 80-100 3/8 in (9.5 mm) si~ve :t:5.6 85-100 55-75 35-60 . No.4 (4.75 mm) sieve :t:5.7 20-40 15-25 10-25 NO.8 (2.36 mm) sieve . :t:4.6 5-10 5-10 5-10 No: 200 (75 J.lm) sieve :t:2.0 . 2-4 2-4 1-4 Range for % AC :t:OA 6.0-7.25 5.75-7.25 5.5-7.0 Class of stone (Section 800) "A" only "A" only "A" only Drain-down (AASHTO T305), % <0.3 <0.3 <0.3 * Mixture control tolerance is not applicable to this sieve for this mix. I. In 12.5 nun and 9.5 nun OGFC and 12.5 nun PEM mixes, use only PG 76-22 asphalt cement (specified in Section 820). 2. All OGFC and PEM mixes shall include a stabilizing fiber of the type (cellulose or mineral) specified in the mix design and meeting the requirements of Section 819. The dosage rate shall be as specified in the mix design and shall be sufficient to prevent drain-down exceeding the above tolerance. 828.2.02 Stone Matrix Asphalt Mixtures A. Requirements Use approved mixtures that meet the following mixture control tolerances and design criteria: Mixture Design Gradation Limits,Percent Passing Sieve Size Control 9.5 mm SMA 12.5 mm SMA 19 mm SMA Tolerance . 1- in (25 mm) sieve :to.0 100 3/4 in (19 mm) sieve H.O 100. 100. 90-100 1/2 in (12.5 mm) sieve :t6.1 98-100.. 85-100 44-70 3/8 in (9.5 mm) sieve :t5.6 70-100 50-75 25-60 NO.4 (4.75 mm) sieve :t5.7 28-50 20-28 20-28 No.8 (2.36) mm sieve :t4.6 15-30 16-24 15-22 No. 50 (300 IJm) sieve :t3.8 10-17 10-20 10-20 No. 200 (75IJm) sieve :t2.0 8-13 8-12 8-12 Ra.nge for % AC :tOA 6.0-7.5 5.8-7.5 5.5-7.5 Design optimum air voids (%) 3.5:t0.5 3.5:t0.5 3.5:t0.5 % aggregate voids filled with AC (VFA) 70-90 70-90 70-90 Tensile splitting ratio after freeze-thaw cycle 80%, 80% 80% GDT-66 Drain-down (AASHTO T305),. % <0.3 <0.3 <0.3 *Mixture control tolerance is not applicable to this sieve for this mix. **Mixture control tolerance shall be:t 2.0% for this sieve for 9.5 mm SMA mixes placed at spread rates greater than 135 Ib/yd2.For 9.5 mm SMA mixes placed at spread rates of 135 Ib/yd2 or less, 100 % passing is required on this sieve. 1. SMA mixtures shall be compacted at 50 gyrations with the Superpave Gyratory compactor or 50 blows with the Marshall compactor. 2. All SMA mixtures shall contain mineral filler and fiber stabilizing additives and shall meet the following requirements: .. a. Asphalt cement grade PG-76~22 (specified in Section 820) is required in all S~A mixtures. b. Aggiegates for SMA shall meet the requirements of Subsection 802.2.02A.3. c. Use mineral filler that meets requirements of Section 883 and is approved by the Department. Approved sources of mineral filler are listed in QPL 81. . d. Do not use local sand in lieu of mineral filler. e. Use an approved FiberStabilizing Additive of the type (cellulose or mineral) specified in the mix design and meeting the requirementS of Section 819. Approved sources of Fiber Stabilizing Additive are listed in QPL 77. The dosage rate will be as specified in the mix design and shall be sufficient to prevent drain-down exceeding the above tolerance. 828.2.03 Superpave Asphalt Concrete Mixtures A. Requirements Ensure thatSuperpave mixtures meet the following mixture control tolerances and design limits: 1. All mixes are to be designed at a design gyration number (Ndes) of 65 gyrations and an initial gyration number (Nmi) of 6 gyrations. . 2. Gradation limits for Superpave mixtures are as follows: Mixture Design Gradation Limits, Percent Passing Sieve Size Control 9.5mm 9.5mm 12.5 mm 19mm 25mm Tolerance Superpave Superpave Superpave Superpave Superpave Type I Type II Note 1 1-1/2 in (37.5 100 mm) sieve . . 1- in (25.0 :t 8.0 100* 100* 90-100 mm) sieve 3/4 in (19.0 :t8.0** 100* 100* 98-100**** 90-100 55-89** mm) sieve 1/2 in (12.5 :t6.0*** 98-100**** 98-100**** 90-100 60-89 50-70 mm) sieve 3/8 in (9.5 :t5.6 90-1 00 90-100 70-89 55-75 mm) sieve NO.4 (4.75 :t5.6 65-85 55-75 mm) sieve NO.8 (2.36 . :t4.6 48-55 42-47 38-46 32-36 30-36 mm) sieve No. 200 (75 :t2.0 5.0-7.0 5.0-7.0 4.5-7.0 4.0-6.0 3.5-6.0 !-1m) sieve * Mixture control tolerance is not applicable to this sieve for this mix. **Mixture control tolerance shall be :t 10.0% for this sieve for 25 rom Superpave. ***Mixture control tolerance shall be:t 8.0% for this sieve for 19 rom Superpave. ****Mixture control tolerance shall be :t 2.0% for this sieve for 12.5 rom and 9.5 rom mixes. Note 1: Use PO 76-22 in 12.5 rom Superpave, excluding shoulder construction, on all projects with ADT greater than 25,000. 3. The Mixture Control Tolerance for asphalt cement shall be:t 0.4% for all mix types. 4. Volumetric limits are as follows: Design Parameter Mix Type Limits % of Maximum Specific Gravity (Gmm) @ design gyrations, All 96% Ndes) % Gmm at the initial number of gyrations, Nj All 91.5% maximum % voids filled with asphalt (VFA) at Ndes 9.5 mm Type I Min. 72; Max. 80 all other types Min 72; Max. 76 Fines to effective asphalt binder ratio (F/Pbe) 9.5 mmType I 0.6 to 1.4 all other types 0.8 to 1.6 Minimum % Voids in Mineral Aggregate (VMA)* 25mm . 13.0 19mm 14.0 12.5 mm 15.0. 9.5 Type I 16.0 9.5 Type /I 16.0 * VMA shall be calculated using the effective specific gravity of the aggregate (Ose)' See SOP-2SP. 828.2~04 Fine-Graded Mixtures A. Requirements Design gyrations (Ndes) for fme-graded mixes shall be 50 gyrations. Ensure that fine-graded mixtures meet the following mixture control tolerances and design limits: ASPHALTIC CONCRETE - 4.75 mm Mix Sieve Size Mixture Control Tolerance Design Gradation Limits, % passing 1/2 in (12.5 mm) sieve" :!:O.O 100" 3/S in (9.5 mm) sieve :!:5.6 90-100 . No~ 4 (4.75 mm) sieve :!:5.7 75-95 No. S (2.36 mm) sieve 60"65 . . :!:4.6 No. 50 (300 11m) sieve .:!:3;S 20-50 No. 200 (75 11m) sieve :!:2.0 4-12 Range for % AC :1:0.4 6.00 - 7.50 . Design optimum air voids (%) 4.0 - 7.0 % Aggregate voids filled with AC 60 - SO * Mixture control tolerance is not applicable to this sieve for this mix. B. Fabrication See Section 400. C. Acceptance See Subsection 106.03 and Section 400. Ensure that individual test results meet the Mixture Control Tolerances listed in Subsections 828.2.01, 828.2.02,828.2.03, or 828.04, whichever applies. D. Materials Warranty See General Provisions 101 through 150. Delete Section 883. Date: August 8. 2002 First Use Date 2001 Specifications: November 1.2002 DEPARTMENT OF TRANSPORTATION STATE OF GEORGIA SPECIAL PROVISION Section 883-Mineral Filler t- W W J: U) >- 0:: <( ~ ~ ;:) U) t- o W .., o 0:: c.. ~ ~ c <( o 0:: c z o :!: J: U 0:: ~ Z ::> o u I 1 [ l en I- z W :E :E 0 U - f-- :c 0 ~~ C? Co 3: ~ I-- I-:C Co :EI- 'Y >9 ;,. a. 3: C'? - :c ~ :E I- ~ C) ~ z C'! 0 W 0 ...J IX: W I- Z W U Oz ~ z ~~ W . IX: w<( +a. ...J ~I- <( Nen I- <(w g :;;3: I- ::> 0 en >- 0 al ~z e>o Wen al.... c-i .... + N 0 .... <( <( I- 0 en IX: - I- ...... eno 0 W<( ...... 3:0 - IX: IX: 0 0 wz 0 <( 1-0 . Zl- en 0 We> 0 IX: Uz 0 u. oS: C/) 0 . W <(en 0 0<( ~ :E e~ U <( z 0:: ::> .~ a.. 0 .. U 0 en >-IX: Z 0<( t- ala. U W ~ .., 0 ~ 0 .-: c-i r? 0:: 0 z a.. ~ L a. J COUNTY RICHMOND PROJECT NO. PRCIO-S009-00 (707) Note: The Local Government shall certify all necessary RIW, and remove or adjust all utilities at no cost to the Department of Transportation. Note: The Local Government shall be responsible for placement, maintenance, and inspection of traffic control devices and any required erosion control devices. Note: The Department of Transportation's participation in constructing this project is limited to the items set up for payment under this contract. Any items or work required and not set up for payment under this contract will be the responsibility of the Local Government and at no cost to the Department of Transportation. Note: Plans have been prepared for this project by Augusta/Richmond County Public Works & Engineering Department dated January 31, 2005 and revised May 13, 2005. Any items or work required by these plans and not set up for payment under this contract will be the responsibility of the Local Government at no cost to the Department of Transportation. Note: In inundated areas, the finished grade elevation at the sub grade shall be placed eighteen (18) in. minimum, two (2) feet desirable or more above the high-water or existing ground line whichever produces the higher elevation: This requirement applies only to low areas showing signs of frequent inundation. Note: All pipe shall meet the Georgia drainage manual and be placed in accordance with Georgia standard 1030-D and/or 1030-P. Note: This work shall meet all requirements ofthe Uniform Federal Accessibility Standards (UF AS). Any additional work required by the UF AS, but not shown in this contract will be included in with the unit price and no additional payment will be made. 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"~f>" c\ C. c>~-\a,\ , ~ EXHIBIT ~ CERTIFICATION OF COMPLIANCE WITH STATE AUDIT REQUIREMENT I hereby c<mfX that I am a principle and duly authorized i res".!!!!'live of c.~~ I1P f+Wj\L5-tO-- whose address is 5~~t2eeNe st. ~ and it is also ertified that: ,4u.Ju<;tct.. J 0" A 307' The provisions of Section 36-81-7 of the Official Code of Georgia Annotated, relating to the "Requirement of Audits" have been complied with in full such that: (a) Each unit oflocalgovernment having a popula~ioIi in excess of 1,500 persons or expenditures of $175;000.00 or more shall provide [orand cause to be made an annual audit of the financial affairs and transactions of all funds and activities of the local government for each fiscal year of the local government. (b) The governing authority of each local unit of government not included above shall provide for and cause to be made the audit required not less often than once every two fiscal years. (c) The governing authority of each local unit of government having expenditures ofless than SI75,000.00in that government's most recently ended fiscal year may elect to provide for and caUSe to be made, in lieu of the biennial audit, an annual report of agreed upon procedures for that fiscal year. (d) A copy of the report and any Comments made by the state auditor shall be maintained as a public record for public inspection during the regular working hours at the principal office of the local government. Those.units of local government not having a principal office shall provide. a notification to the public as. to the location of and times during which the public may inspect the report. . g/~ lo~ (j)~4.~. - Signature ~\ai Date