Nanoscale and Macroscale Characterization of the Influence of RAP and RAS on Cracking Resistance of Asphalt Mixes

This paper summarizes the results of laboratory tests that were performed to characterize the blending of recycled asphalt binders [recycled asphalt shingles (RAS) and reclaimed asphalt pavement (RAP) binders] and virgin asphalt binders and to examine the effects of RAP and RAS on the fatigue cracking resistance of asphalt mixtures. Atomic force microscopy (AFM) was used to characterize the interfacial zone that develops between RAP and a virgin...