反应型沥青混合料动态模量试验研究  

Research onDynamic Modulus of Reactive Asphalt Mixture

作　　者：于明浩[1] 陈娟[2] 

机构地区：[1]长沙理工大学,湖南长沙410114 [2]江苏省交通规划设计院股份有限公司,江苏南京210014

出　　处：《上海公路》2015年第3期59-64,10,共6页Shanghai Highways

摘　　要：选用AC-13C、AC-20C两种级配对Elvaloy~RET沥青混合料进行配合比设计,对添加Elvaloy~RET改性剂前后的沥青混合料与SBS沥青混合料试件在不同温度和频率下进行动态模量试验,分析比较三种沥青混合料的动态力学性能。结果表明:添加Elvaloy~RET改性剂后,沥青混合料的高温动态模量增大,低温动态模量减小,Elvaloy~RET改性剂能有效改善沥青混合的高、低温性能;与SBS改性沥青混合料相比,Elvaloy~RET沥青混合料高温性能突出,低温性能稍差。The mix design of AC-13 C and AC-20 C gradation Elvaloy ^(?) RET asphalt mixture were studied.Dynamic modulus test were conducted on matrix asphalt mixture,Elvaloy ^(?) RET asphalt mixture and SBS modified asphalt mixture to analyze and compare the dynamic mechanical performance of these three kinds of asphalt mixture.Results show that after adding Elvaloy ^(?) RET modifier,high temperature dynamic modulus of asphalt mixture increases and low temperature dynamic modulus of asphalt mixture decreases.Elvaloy ^(?) RET modifier can improve high and low temperature performance of asphalt mixture.Compared with SBS modified asphalt,Elvaloy ^(?) RET asphalt has excellent high temperature performance,and a bit poor low temperature performance.

关 键 词：Elvaloy^RET 沥青混合料 动态模量 力学性能 

分 类 号：U414[交通运输工程—道路与铁道工程]