高模量沥青结合料路用性能研究

Research on the Pavement Performance of High-modulus Asphalt

通过对70号基质沥青中添加不同的改性剂来得到高模量改性沥青,进行正交试验方法确定各改性剂的掺量,得出掺加20%湖沥青+6%PE+20%岩沥青+2%SBS的高模量改性沥青满足性能要求;对AH-50、SBS改性沥青、高模量(HM)改性沥青进行SHRP性能比较试验,通过比较可得HM改性沥青具有良好的高温性能。

The high-modulus asphalt can be produced through adding different modifier to the 70th base asphalt.In this paper,the orthogonal testing method is used to determine the suitable adding volume of different modifier and the high-modulus by adding 20 percent lake asphalt,6 percent PE,20 percent rock asphalt and 2 percent SBS modified asphalt can meet the performance requirements.This paper makes a series of the SHRP performance experimental study on AH-50,SBS modified asphalt and high-modulus（HM） modified asphalt and comparison of HM modified asphalt with the other two,and points out that HM modified asphalt has excellent high temperature performance.