The application of TPS modified asphalts in granulated crumb rubber asphalt mixture

Granulated crumb rubber asphalt pavement is a new kind of pavement with higher elasticity and effective anti-ice performance, contact interact state between asphalt mixture structure and materials is changed by means of adding granulated crumb rubber into asphalt mixture, so pavement is prone to in compact and flake off, its service lifetime decreases, in this paper research work, we chosen TPS modified asphalts with high viscosity as binder, studied the difference of all kinds of performance aspects among TPS modified asphalts, SBS modified asphalt and groundmass asphalt, and compared with the pavement performances of granulated crumb rubber asphalt mixture with these different asphalts, the test results indicates that TPS modified asphalts can evidently improve moisture stability and other pavement performances of granulated crumb rubber asphalt pavement, also enhance service lifetime of asphalt pavement.