5U北美岩沥青改性沥青路用性能试验研究  

Experimental Study on Road Performance of 5U North American Rock Asphalt Modified Asphalt

作　　者：刘宇[1,2] 关祖华 吴传海 黄文通[3] 

机构地区：[1]长安大学,西安710064 [2]广东华路交通科技有限公司,广州510420 [3]华南理工大学,广州510640

出　　处：《广东公路交通》2013年第1期1-3,共3页Guangdong Highway Communications

基　　金：广东省交通运输厅科技项目(2011-02-024)

摘　　要：5U北美岩沥青是一种天然沥青改性剂,为评价其路用性能,采用流变学方法对5U北美岩沥青改性沥青胶浆性能进行了动态温度扫描,对改性后沥青混合料的高温性能与抗水损坏性能进行了室内评价。研究结果表明:经5U北美岩沥青改性后的沥青胶浆车辙因子明显提高,弹性增加;沥青混合料抗车辙能力和抗水损害能力明显改善。The 5U North American rock asphalt is a kind of natural asphalt modifier. In order to evaluate its road performance, the dynamic temperature scanning has been used to study the asphalt modified by 5U North American rock asphalt, and the high temperature performance and resistance to moisture damage of the mixture have also been evaluated. The results have shown that, the 5U North American rock asphalt can significantly improve the rutting factor of asphalt and enhance the elasticity, meanwhile the resistance to rutting and the resistance to moisture damage have also been improved.

关 键 词：5U北美岩沥青 抗车辙 抗水损害 

分 类 号：U416.217[交通运输工程—道路与铁道工程]