Interaction of asphalt with ground tire rubber

This study characterizes the interaction of asphalt cement with ground tire rubber (GTR) using rheological tests, chemical characterization tests, set tling and rubber dissolution tests. Curing time and temperature, mixing rat e, rubber mesh size are important factors that affect the rubber depolymeri zation rate. The obtained high cure asphalt-rubber binders are homogeneous, compatible and have non-detrimental viscosity at hot-mix temperatures, whi le still being viscous and elastic at rutting temperatures and less stiff a t cold temperatures than base asphalt.