ABSTRACT
The pavement performance of asphalt mixture modified by anti-rutting agent PCF and widely used anti-rutting agent PR, including high-temperature stability, low-temperature anti-cracking performance and water stability were evaluated in this study. The creep properties of asphalt mixtures with different anti-rutting agents were assessed by static uniaxial creep tests. By non-linear fitting Burgers model, the creep curves were obtained and the viscoelastic parameters of asphalt mixture were calculated to explain how the anti-rutting agents worked. Based on this, the static uniaxial creep models were established using finite difference method. It was found that anti-rutting agent PCF could significantly improve the high-temperature stability of asphalt mixtures and enhance the low temperature performance and water stability. In conclusion, anti-rutting agent PCF had good effect of modification with about half the cost of PR, which might be worth widely applying in road construction.
