摘要
应力吸收层在延缓旧水泥混凝土路面沥青加铺层反射裂缝形成方面具有卓越的性能。通过沥青测力延度试验和应力吸收层沥青混合料拉伸与拉压疲劳试验,比较不同沥青的应力吸收层混合料抗拉伸和抗拉压疲劳特性。试验结果表明:应力吸收层材料具有优良的抗拉伸和抗拉压疲劳性能;特种改性Sam pave沥青混合料与STRATA沥青混合料的抗拉伸、抗拉压疲劳性能基本接近。
Stress absorbing layer takes an excellent role in delaying and preventing reflective cracks of the existing PCC pavement. Through asphalt ductility test and mixture tensile properties and tension- compression fatigue test, the tensile properties and tension-compression fatigue performances of three stress absorbing layer mixtures are analyzed. The results indicate that the materials of stress absorbing layer have fine properties in resisting tension and tension-compression fatigue. And the properties of asphalt mixture with special multi-modified quality are close to STRATA mixture.
出处
《公路》
北大核心
2007年第10期190-194,共5页
Highway
基金
湖北省交通科技项目
关键词
道路工程
应力吸收层
特种改性沥青
拉伸与拉压疲劳
反射裂缝
road engineering
stress absorbing layer
special multi-modified asphalt
tensileproperties and tension-compression fatigue
reflective cracking
