基于盐渍土环境的沥青抗剪强度试验分析  

The Analysis of Asphalt Shear Strength in the Environment of Salty Soil

作　　者：张俊[1] 薛明[1] 

机构地区：[1]同济大学道路与交通工程教育部重点实验室,上海200092

出　　处：《公路工程》2007年第6期61-64,126,共5页Highway Engineering

基　　金：西部交通建设科技项目(200131879569)

摘　　要：通过自行设计的沥青灌缝试块抗剪强度试验,分别探讨了试块在不同氯化钠、硫酸钠溶液浓度下的抗剪强度规律,研究了试块抗剪强度与龄期的关系,对比了普通沥青与新型UBM改性沥青抗盐侵蚀的性能,同时通过试验路段路面裂缝修补验证了室内试验的结果,为盐渍土地区沥青路面的养护维修提供了参考依据。Through the way of self-designed shear strength test on asphalt filled specimens, this article discusses the shear strength law of the specimen in the sodium chloride and sodium sulfate solution with different densities; studies the relation between shear strength and age ; contrast the capability of resistance to salt eroding between normal and modified asphalt; at the same time, prove the results of the laboratory tests by the mending test of cracks. According to the research results, some basic theories for the repair methods for transverse cracks are provided.

关 键 词：盐渍土 UBM改性沥青 抗剪强度 氯化钠 硫酸钠 抗盐侵蚀性能 

分 类 号：U416.03[交通运输工程—道路与铁道工程]