... contained 65% residual bitumen and 35% water. Two types of copolymers were used to modify the 100 pen binder, an EVA and a linear SBS at three levels each, namely 4, 6 and 8% by weight of base binder. The EVA was of grade 45-33, meaning its melt ¯ow index of 45 corresponds to a high molecular weight while...

..., but the effects of the new binders are still largely unknown. 2. This report presents an evaluation of polymer-modified bitumen binders. Material properties, that is, contraction, strength, creep deformation and stress relaxation, as functions of temperature and time were measured using a contact strain gauge...