橡胶沥青透水路面沥青膜厚度研究  

Research on the Thickness of Asphalt Film of Crumb Rubber Modified Asphalt Porous Pavement

作　　者：吴渝玲[1] 

机构地区：[1]重庆水利电力职业技术学院,重庆402160

出　　处：《公路工程》2015年第4期266-269,共4页Highway Engineering

基　　金：江苏省科技研究计划项目(KY08-01)

摘　　要：为了研究橡胶沥青透水路面适宜的沥青膜厚度,选择特征因素模型法计算矿料比表面积。针对不同级配选择7种沥青膜厚度25~37μm（间隔2μm）,根据每种油膜厚度及集料吸油率反算各混合料的油石比。通过反算得出不同级配不同油膜厚度的油石比制备马歇尔试件,对马氏试件进行稳定度试验、肯塔堡飞散试验及谢伦堡析漏试验。试验结果表明：沥青膜厚度在29~33μm之间时,橡胶沥青混合料具有良好的孔隙率与较好的强度性能,且混合料析漏与飞散损失均满足规范求,建议在对橡胶沥青透水路面进行设计时,可以根据集料比表面积及吸油率初步设定沥青膜厚度为30μm。In order to study the thickness of asphalt film,characteristic factor model method was selected to calculate the specific surface area. Choosing seven kinds of film thickness（ 25 ~ 37 μm,2 μm invrement）,aspahlt-aggregate ratio was computed in turn according to both thickness and oil absorption. Marshall specimens were tested through Marshall stability,Kentucky flying and Shellen leakage. The testing result indicate： when the thickness of asphalt film is between 29 μm and 33 μm,the mixture has good void ratio and strength properties,and the values of leakage and flying loss meet the specification requirement. Therefore,this paper suggested that setting the thickness of asphalt film of crumb rubber modified asphalt porous pavement is 30 μm initially.

关 键 词：橡胶沥青 透水路面 沥青膜 比表面积 

分 类 号：U416.217[交通运输工程—道路与铁道工程]