Specifications include, but are not limited to: Crack sealant shall be a modified asphalt-fiber compound designed specifically for improving the strength and performance of the parent asphalt sealant. ( a) The asphalt binder shall consist of a blend of neat asphalt binder, chemically modified crumb rubber (CMCR), and a polymer package, all of which meet the following specifications: ■ The binder will meet PG 64-28E requirements after modification including: o PG grade requirements of AASHTO M320 o Requirements of AASHTO TP70/MP 19 ■ Modification, at a minimum, shall consist of 7% crumb rubber, and the maximum particle size for the recycled tire rubber shall be 80 mesh (#80 sieve) ■ The asphalt supplier shall provide testing for both the neat and modified asphalt binders
