胶粉/抗车辙剂复合改性沥青混合料路用性能研究

Research on the Road Performance of Modified Asphalt Mixtures with Gel Powder/Anti-Rutting Agent Composite Modification

车辙是道路工程中常见的病害,车辙发展严重影响行车安全与行车舒适性,为改善路面的抗车辙性能,本文采用不同掺量的胶粉与抗车辙剂作为环保改性剂制备了两组改性沥青混合料,通过车辙试验、马歇尔稳定度试验及三点弯曲低温小梁试验等进行了路用性能实验研究。试验结果表明:与基质沥青和SBS改性沥青使用相比,利用复合改性剂制备的多相复合改性沥青混合料的高、低温性能及水稳定性较都有了明显的改善。

Rutting is a common disease in road engineering, rutting development seriously affects driving safety and driving comfort, in order to improve the rutting performance of the pavement, this paper adopts different dosages of rubber powder and anti-rutting agents as an environmentally friendly modifier prepared two groups of modified asphalt mixtures, rutting test, Marshall stability test and three-point bending low-temperature trabeculae test and other road performance experimental research. The test results show that compared with the use of matrix asphalt and SBS modified asphalt, the use of composite modifiers prepared by the multiphase composite modified asphalt mixture of high and low temperature performance and water stability are significantly improved.