SBS改性沥青低温性能评价方法

Evaluation Method of Low Temperature Performance of SBS Modified Asphalt

目前沥青SBS改性是提高路面低温性能的主要方法,但对于现有SBS改性沥青低温性能指标能否准确反映沥青路面使用过程中的低温性能,存在很大争议。文中介绍了常用的SBS改性沥青胶结料低温性能评价方法的研究现状、工作原理及评价手段,对SBS改性沥青低温性能评价方法提出了展望。

At present,the asphalt SBS modification is the main method to improve the low temperature performance of the pavement,but it is controversial whether the low temperature performance index of the existing SBS modified asphalt can accurately reflect the low temperature performance during the use of the asphalt pavement. In this paper,the research status,working principle and evaluation methods of commonly used SBS modified asphalt binder low temperature performance evaluation methods are introduced. The prospects for the evaluation of low temperature performance of SBS modified asphalt binders are presented.