摘要
Abstract
In order to investigate the performance changes of OGFC asphalt mixture under thermal aging,OGFC-13 asphalt mixture was mixed with SBS modified asphalt and 70#matrix asphalt,respectively.After thermal aging treatment,the drainage performance,high temperature sta-bility and water stability of the asphalt mixture were tested and analyzed.The results show that SBS modified asphalt mixture has relatively bet-ter drainage performance,high temperature stability and water stability before thermal aging treatment,while SK-70 base asphalt mixture and SBS modified asphalt mixture have significantly reduced water stability after thermal aging treatment.The decrease of residual strength and re-sidual stability of the two asphalt mixtures gradually increased with the increase of thermal aging temperature,and the permeability coefficient and dynamic stability of the mixture increased after the completion of thermal aging treatment.关键词
沥青混合料/OGFC沥青混合料/SBS改性沥青/基质沥青/热老化Key words
Asphalt mixture/OGFC asphalt mixture/SBS modified asphalt/Matrix asphalt/Thermal aging分类
交通工程
