Summary of Rubber Modified Asphalt Product Specifications around ...

H. Acceptance of Rubberized Asphalt Cement (RAC): Acceptance of the RAC wet-terminal blend
shall be determined according to the respective requirements for the PGAC grade specified
according to OPSS 1101. Additionally, to be acceptable the RAC wet-terminal blend shall meet the
Type III Asphalt Rubber Binder requirements of ASTM D6114.
313.08.01.02.04.01 General
Clause 313.08.01.02.04.01 of OPSS 313 is amended by the addition of the following:
The Owner will use LS-292 for determination of the asphalt cement content for the RMA, therefore, the
referee laboratory shall also follow LS-292 (ignition oven).
313.09 MEASUREMENT FOR PAYMENT
313.09.01.01
Clause 313.09.01.01 of OPSS 313 is amended by the addition of the following item:
Superpave 12.FC 1 R
313.10 BASIS OF PAYMENT
313.10.01.01
Clause 313.10.01.01 of OPSS 313 is amended by the addition of the following item:
Superpave 12.5FC 1 R - Item
313.10.01.02.02.04 Payment Factor for Voids
Clause 313.10.01.02.02.04 of OPSS 313 is deleted in its entirety and replaced with the following:
For RMA mixes, as long as the lot mean air voids is between 2.5 and 5.5 percent, the payment
factor for voids, PFVOIDS, shall be equal to either:
G. PFGAC, if the PFGAC is less than 1.0; or,
H. 1.0, if the PFGAC is equal to or greater than 1.0.
Otherwise, if the lot mean air voids is outside the 2.5-5.5 percent range, the PFVOIDS shall be
considered to be 0.5.
313.10.01.02.02.06 Payment Factor for Combined Mix Properties and Compaction
Clause 313.10.01.02.02.06 of OPSS 313 is amended by the addition of the following:
For RMA mixes, as long as the lot mean compaction is between 90.5 and 98.0 percent, the payment
factor for compaction, PFC, shall be equal to either:
1. PFM, if the PFM is less than 1.0; or,
2. 1.0, if the PFM is equal to or greater than 1.0.
Otherwise, if the lot mean compaction is outside the 90.5-98.0 percent range, the PFC shall be
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