Guidelines and Design Program for Hot-Mix Asphalts with RAP, RAS, and Other Additives 0 6923 part2 

UTEP developed an Asphalt Concrete (AC) mix design program and guidelines for TxDOT pavement designers and engineers to determine the optimum recycled asphalt pavement (RAP), recycled asphalt shingles (RAS), and additive content for designing balanced mixes without compromising the quality and performance of the final product. The program allows for mixes with varying aggregate types, asphalt content and grade, and (if feasible) structural design of the pavement. Researchers performed extensive lab and field testing on service sections constructed with and without RAP, RAS, and other additives.