USP改性剂对沥青混合料路用性能的影响  

Effects of USP modifier on the pavement performance of asphalt mixture

作　　者：李春才 徐龙亭 杜玉珍 张乃民 吕曾波 王红燕 LI Chuncai;XU Longting;DU Yuzhen;ZHANG Naimin;LYU Zengbo;WANG Hongyan(Liaocheng Transportation Development Co.,Ltd.,Shandong Liaocheng 252000 China)

机构地区：[1]聊城市交通发展有限公司,山东聊城252000

出　　处：《山东交通科技》2024年第2期33-36,共4页

基　　金：山东省交通运输厅科技计划项目,项目编号:2023B92-02;山东省工业和信息化厅科技计划项目,项目编号:202351400049。

摘　　要：为探究USP改性剂对沥青混合料路用性能的影响,分别采用沥青质量分数为4%和4.5%USP改性剂制备USP改性沥青和USP/SBS复合改性沥青。通过对USP改性沥青混合料以及USP/SBS复合改性沥青混合料路用性能研究,评价了USP改性剂对沥青混合料高温稳定性、低温抗裂性能和水稳定性的影响。结果表明,USP改性沥青与USP/SBS复合改性沥青混合料的高温性能均有较大提升,水稳定性以及低温性能满足要求,但低温性能略有下降。In order to explore the effect of USP modifier on the pavement performance of asphalt mixture,USP modified asphalt and USP/SBS composite modified asphalt were prepared by using 4%and 4.5%USP modifier respectively.Through the research on the road performance of USP modified asphalt mixture and USP/SBS composite modified asphalt mixture,the high temperature stability,low temperature crack resistance and water stability of USP modifier to asphalt mixture were evaluated.The results show that the high temperature performance of USP modified asphalt and USP/SBS composite modified asphalt mixture is greatly improved,and the water stability and low temperature performance also meet the requirements of the specification,but the low temperature performance decreases slightly.

关 键 词：USP改性剂 复合改性沥青 路用性能 沥青混合料 

分 类 号：U416.217[交通运输工程—道路与铁道工程]