Superpave沥青混合料级配优化与路面离析防治  

Research on Gradation Optimization of Superpave Mixture and Prevention Measure for Pavement Segregation

作　　者：顾建武 何良德[2] 

机构地区：[1]镇江市交通工程质量监督站,镇江212003 [2]河海大学港口海岸与近海工程学院,南京210098

出　　处：《交通科技》2013年第1期140-143,共4页Transportation Science & Technology

摘　　要：为了减小混合料离析造成的路面早期病害,以泰州长江公路大桥镇江段高速公路SUP-25下面层施工为例,分析了离析产生的原因,总结了路面离析的种类,研究了混合料级配的优化,提出了集料堆放、拌和、运输、摊铺、碾压等各个施工环节中预防离析的处理措施,保证最大限度地减少离析现象,确保沥青路面的质量。In order to reduce the premature damage of pavement caused by asphalt mixtures segregation,taking the construction of lower layer＇s Sup-25 asphalt mixtures for the highway of Taizhou Changjiang River Bridge in Zhenjiang as examples,the causes of the segregation is analyzed,the types of pavement segregation is summarized.Then the gradation optimization of Sup-25 asphalt mixtures is researched,some measures are given for all steps of mixture construction including the stacking of the aggregate,mixing,transportation,paving and rolling are included.By these measures the segregation can be reduced in the maximum degree to improve the quality of the asphalt pavement.

关 键 词：SUPERPAVE混合料 路面离析 级配优化 防治措施 

分 类 号：U414[交通运输工程—道路与铁道工程]