直投式温拌SBR改性沥青混合料的路用性能试验研究  

Study on the Road Performance Experiment of Warm Mix SBR Modified Asphalt Mixture by Direct Delivery Method

作　　者：朱玉美[1] 

机构地区：[1]江苏省交通技师学院,镇江212006

出　　处：《交通科技》2015年第5期119-122,共4页Transportation Science & Technology

摘　　要：SBR改性沥青的低温性能突出,但普遍存在高温性能不稳定的问题,采用直投式温拌SBR胶粉沥青混合料技术进行弥补。文中通过多项室内试验对温拌SBR沥青混合料的水稳定性、高温稳定性和低温抗裂性进行测试分析,并与70号沥青、SBS沥青、SBR沥青混合料的路用性能进行对比分析。结果表明,温拌SBR沥青混合料具有与SBS沥青混合料相当的水稳定性、高温稳定性,而其低温抗裂性还优于SBS沥青混合料。SBR modified asphalt has the outstanding low temperature performance,but it usually exists the problem of unstable high-temperature performance.Using warm mix SBS powder asphalt mixture technology,we can make up for the deficiencies.In this paper,a number of laboratory experiments were tested for warm mix asphalt SBR water stability,high temperature stability and low temperature cracking resistance.We contrasted the pavement performance with 70#asphalt,SBS asphalt and SBR asphalt mixture.Test results show that warm mix SBR asphalt mixture has the considerable performance of water stability,high temperature stability with SBS asphalt mixture,and the low temperature cracking resistance of warm mix SBR asphalt mixture is better than SBS asphalt mixture.

关 键 词：沥青混合料 SBR胶粉 温拌剂 直投式 性能 

分 类 号：U416.217[交通运输工程—道路与铁道工程]