目数对橡胶沥青性能的影响  

Influence of Mesh on Performance of Rubber Modified Asphalt

作　　者：罗要飞[1] 李志宏[1] 张苛[1] 

机构地区：[1]长安大学公路学院特殊地区公路工程教育部重点实验室,西安710064

出　　处：《石油沥青》2013年第1期1-5,共5页Petroleum Asphalt

基　　金：国家西部交通建设科技项目(200631881221)

摘　　要：通过常规试验和RV、DSR、BBR试验研究了胶粉目数对橡胶沥青性能影响规律。结果表明,基质沥青加入胶粉后,性能得到了明显改善,其中高标号的基质沥青改善效果明显。常规试验条件下胶粉掺量为20%,目数在20～60时,胶粉改性沥青性能较好。相应的SHRP试验结果,也证实了上述结果的可行性。In order to study the effect of the mesh on rubber modified asphalt performance, the routine testing and RV, DSR, BBR testing were did. The results showed： adding the crumb rubber to matrix asphalt, the performance had been significantly improved, especially the matrix asphalt of high mark. When the rubber powder content was 20% and from 20 to 60 of mesh, the soft point, ductility, penetration and elasticity recovery of modified asphalt were better. The corresponding test of SHRP also confirmed the feasibility of the above results.

关 键 词：目数 胶粉改性沥青 车辙因子 低温性能 

分 类 号：U414[交通运输工程—道路与铁道工程]