Rapid and Simple Method for Binder Oxidative Aging

摘要

A rapid and simple method for simulation binder aging is presented. Using the211u001eeight SHRP core asphalts, treating neat asphalt with microwave radiation for 7 hr 211u001eand 20 min at 143 deg C and 440 psi yields a residue equivalent to that of 'RTFOT 211u001e+ PAV.' To test ability of microwave energy (dielectric heating) to simulate 211u001e'RTFOT + PAV' aging (conductive heating), six different tests were used to 211u001ecompare physical, chemical, and physicochemical changes resulting from the two