回收沥青掺量对AH-90道路石油沥青性能的影响研究

Effect of Recycled Asphalt Content on Performance of AH-90 Pavement Petroleum Asphalt

通过利用阿布森法提取旧沥青混凝土中的沥青,将其与新的AH-90道路石油沥青混配,考察对AH-90道路石油沥青中加入回收沥青的混合沥青与纯AH-90道路石油沥青的黏度和车辙因子的影响,得到结论:回收沥青可增加AH-90道路石油沥青的黏度,温度低时黏度增加明显;回收沥青可降低AH-90道路石油沥青的车辙因子,温度低时,车辙因子减小较明显。

This paper uses Abson method to extract the asphalt from old asphalt concrete,then mixed it with new AH-90 pavement petroleum asphalt,in order to examine the influence of the viscosity and rutting factor of the mixed asphalt and pure AH-90 pavement petroleum asphalt.The following conclusions were drawn:the recycled asphalt can increase the viscosity of AH-90 pavement petroleum asphalt,and the viscosity increased significantly at low temperatures.The recycled asphalt can decrease the rutting factor of AH-90 pavement petroleum asphalt,and the decrease was obvious at low temperatures.