Research on High- and Low-Temperature Rheological Properties of High-Viscosity Modified Asphalt Binder

This study evaluates the critical high- and low-temperature rheological properties of a high-viscosity modified asphalt (HVMA) binder by analyzing one neat three binders (B-type, Y-type, H-type) using temperature sweep tests multi-stress creep recovery (MSCR) through dynamic shear rheometer (DSR), stiffness bending beam (BBR). Technical indexes such as softening point temperature, viscosity, rutting factor, unrecoverable compliance, rate are measured calculated for high-temperature properties, while m/S value, dissipation energy ratio, relaxation time, elongation, stiffness, speed used technical properties. The results show that incorporation modifiers reduces compliance increases binder. Non-recoverable is found to be reliable indicator performance, at low temperatures, time decreases, increases, stress ability improves. ratio value suggested evaluate performance HVMA Burgers model based on BBR test. Therefore, this recommends via MSCR in evaluation binders.