摘要
Abstract
In order to study the properties of graphene-rubber composite modified asphalt under thermal aging,the physical properties and modification mechanism of graphene-rubber composite modified asphalt under different aging conditions were analyzed by laboratory experiments.The results show that the residual penetration ratio of graphene-rubber modified asphalt is the highest,the softening point difference is the lowest,and the viscosity aging index is the lowest.With the deepening of the aging degree,the penetration ratio of asphalt residue decreases continuously,the softening point difference,the viscosity aging index increases continuously,and the carbonyl index and sulfoxyl index also show an increasing trend.In summary,the graphene rubber composite modified asphalt has excellent anti-aging properties.关键词
石墨烯橡胶复合改性沥青/软化点/黏度老化指数/残留针入度Key words
Graphene-rubber composite modified asphalt/Softening point/Viscosity aging index/Residual needle penetration分类
交通工程
