Specifications include, but are not limited to: DESCRIPTION: This specification covers the use of Recycled Asphalt Shingles (RAS) in Asphalt Concrete Hot Mix (ACHM). MATERIALS: ACHM utilizing RAS shall meet all of the requirements of Sections 404, 409, 410, and 416 and the requirements of Section 405, 406, or 407 for the mixture type specified on the plans. The mix design will follow AASHTO MP 23-14 and AASHTO PP 78-14 except as follows: (1) A maximum of three (3) percent RAS by total mix weight will be allowed in any mix design. The amount of RAS will be included in the total Recycled Asphalt Pavement (RAP) percentage if RAP is used. (2) Shingle material shall be processed so that 100 percent passes the 3/8” (9.5 mm) sieve and ninety-five (95) percent passes the No. 4 (4.75 mm) sieve. (3) Pre-consumer, or manufacturer waste, shingles may be used in mix designs requiring PG 64-22 binder only. (4) Post-consumer, or tear-off, shingles may be used in mix designs requiring PG 64-22 binder only.
