Low temperature fracture of polyethylene-modified asphalt binders and asphalt concrete mixes

This paper gives an in-depth discussion on the low temperature fracture properties of polyethylene-modified asphalt binders and concrete mixtures. Test results are presented for chlorinated polyethylene-modified binders as well as for stabilized and unstabilized polyethylene-modified binders. The objective of this research was to elucidate which fundamental toughening mechanisms, if any, are responsible for the change in low temperature properties of asphalt binders and aggregate mixes to which polyethylene has been added.