Study on High Viscoelastic Modified Modified Asphalt based on Alpine Region

Qingpeng HE

Chongqing Jiaotong University, Chongqing, 400074, China

Email: 1468512140@qq.com

Abstract: In this paper, SBS and two kinds of high performance viscosity modifier SINTOPS and HVM-700 are used to modify the matrix asphalt, so as to prepare high viscosity modified asphalt which can be used to improve the pavement performance of asphalt pavement. According to the elastic recovery of each group of modified asphalt and 60 ℃ dynamic viscosity, as a viscoelastic properties of the contrast index. The results show that the modified asphalt with 6% SBS and 3% SINTOPS and 3% HVM-700 has better modification effect and road performance.

Keywords: Alpine Region;Viscoelastic property;Composite modified asphalt.