不同改性沥青及纤维对大空隙率沥青路面性能影响的研究

Study on Influence of Different Modified Asphalts and Fibers on Performance of Large-voidage Asphalt Pavement

与普通沥青路面相比,大空隙沥青路面对改性沥青及集料有更高的要求。通过对SBS、橡胶粉、SBS与橡胶粉复合、TPS改性沥青性能分析对比,不同型式的纤维分析对比,研究不同改性沥青及纤维对大空隙率沥青路面性能的影响,得出SBS与橡胶粉复合改性沥青性能接近TPS改性沥青性能,不同纤维型式对混合料有不同的作用。以期对相关工程有参考借鉴作用。

Compared with the common asphalt pavement, the large-voidage asphalt pavement has higher requirements for the modified asphalt and aggregate. According to analysis and comparison of the performances of SBS, rubber powder, SBS and rubber powder recombination, TPS modified asphalt, and the different kinds of fiber, and study on the influences of the different modified asphalt and fibers on the performance of large-voidage asphalt pavement, it is concluded that the performance of SBS and rubber powder recombined modified asphalt is close to the performance of TPS modified asphalt, and the different kinds of fiber have the different effects on the mixture, which can be referred for the relative projects.