CR/SBSCMA复合改性沥青性能研究

Research on Performance of CR/SBSCMA Composite Modified Asphalt

通过对橡胶粉和SBS复合改性沥青常规指标的试验研究,分析了在不同的橡胶粉掺量和SBS改性剂掺量下CR/SBSCMA复合改性沥青的性能,以及采用PG分级的方法研究不同改性剂掺量下复合改性沥青的流变性能,从而为季冻地区的沥青路面沥青选择提供参考。

Through the experimental research on conventional indexes of rubber powder and SBS composite modified asphalt,the performance of CR/SBSCMA composite modified asphalt under different mixing amounts of rubber powder and SBS modifier and the rheological property of composite modified asphalt under different mixing amounts of modifier are analyzed by adopting the method of PG grading,so as to provide reference for the asphalt selection of asphalt pavement in seasonal frozen area.