Study on Aging Resistance of Waste Rubber Composite Modified Asphalt
To improve the aging resistance of the waste rubber-modified asphalt,In this paper,the aging resistance of matrix asphalt,SBS modified asphalt,rubber modified asphalt and waste rubber powder composite modified asphalt was compared and evaluated.The results show that the short-term aging index of each asphalt is less than15%.The penetration of matrix asphalt decreased the most(9.9%),the softening point increased the most(11.6%),and the aging effect of waste rubber powder modified asphalt was the least.In terms of long-term aging,the penetration of matrix asphalt decreased the most(25.6%),and the softening point increased the fastest(27.6%)after aging,followed by rubber modified asphalt,then SBS modified asphalt,and finally waste rubber powder composite modified asphalt,indicating that it has the best long-term aging resistance.
国家科技期刊平台
NSTL
万方数据
