北美岩沥青和SBS复合改性沥青性能研究  

Performance Research of Gilsonite and SBS Composite Modified Asphalt

作　　者：张国民 陶子政 

机构地区：[1]广东华路交通科技有限公司,广州510400

出　　处：《广东公路交通》2016年第4期18-20,共3页Guangdong Highway Communications

摘　　要：采用北美岩沥青和SBS复合改性技术,制备了不同掺量的北美岩沥青和SBS改性沥青,研究了沥青性能和沥青混合料性能变化规律。结果表明:采用北美岩沥青和SBS复合改性后,沥青针入度降低、软化点升高、黏度增加,沥青高温稳定性能改善显著;复合改性沥青混合料水稳定性、高温稳定性和低温抗裂性均明显提高。Using Gilsonite and SBS composite modification technology, different contents of Gilsonite and SBS modified asphalt were prepared; variation law of performance of both asphalt and asphalt mixture were studied. The results have shown that ： with Gilsonite asphalt and SBS modification, reduced penetration, increased soften-ing point and t increased viscosity have been found, with high temperature stability of asphalt being improved sig-nificantly. The water stability, high temperature stability and low temperature crack resistance of composite modi-fied asphalt mixture has been improved significantly.

关 键 词：道路工程 试验研究 改性沥青 性能 

分 类 号：U414[交通运输工程—道路与铁道工程]