Abstract
In order to evaluate the property of self-modified high viscosity asphalt (SHVA), we use GC SBS modified asphalt (GC)and TPS high viscosity asphalt (TPS) as control group. The rolling thin film oven test (RTFOT) and pressure aging vessel (PAV) were adopted to evaluate the aging property of high viscosity asphalts. And the storage stability of SHVA was measured. The results show that after RTFOT, the ductility, zero shear viscosity, viscosity toughness and toughness of SHVA are better than those of GC and TPS. The Zero shear viscosity of SHVA can still reach 19638Pa·s after PAV. Therefore, the anti-aging performance of SHVA is better than GC and TPS. After heat storage for 72h, the softening point difference of SHVA is 2.3 °C which can meet the storage stability requirement.
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