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Edgewater Creek Bridge Replacement November 2023 127 1Calculated as the weight of asphalt binder contributed from the RAP as a percentage of the total weight of asphalt binder in the mixture. 2Calculated as the weight of asphalt binder contributed from the RAS as a percentage of the total weight of asphalt binder in the mixture. 1 6. Develop the mix design including RAP, RAS, recycling agent, and 2 new binder. 3 4 7. Extract, recover, and test the asphalt residue from the RAP and 5 RAS stockpiles to determine the percent of recycling agent and/or 6 grade of new asphalt binder needed to meet but not exceed the 7 performance grade (PG) of asphalt binder required by the 8 Contract. 9 10 a. Perform the asphalt extraction in accordance with AASHTO T 11 164 or ASTM D 2172 using reagent grade solvent. 12 13 b. Perform the asphalt recovery in accordance with AASHTO R 14 59 or ASTM D 1856. 15 16 c. Test the recovered asphalt residue in accordance with 17 AASHTO R 29 to determine the asphalt binder grade in 18 accordance with Section 9-02.1(4). 19 20 d. After determining the recovered asphalt binder grade, 21 determine the percent of recycling agent and/or grade of new 22 asphalt binder in accordance with ASTM D 4887. 23 24 e. Test the final blend of recycling agent, binder recovered from 25 the RAP and RAS, and new asphalt binder in accordance with 26 AASHTO R 29. The final blended binder shall meet but not 27 exceed the performance grade of asphalt binder required by 28 the Contract and comply with the requirements of Section 9-29 02.1(4). 30 31 8. Include the following test data with the mix design submittal: 32 33 a. All test data from RAP and RAS stockpile construction. 34 35 b. A Safety Data Sheet (SDS) and documentation that no 36 asbestos has been added during production of the 37 manufactured waste shingles as detailed in Section 9-38 03.21(1). 39 40 c. All data from testing the recovered and blended asphalt 41 binder. 42 43 9. Include representative samples of the following with the mix 44 design submittal: 45 46