Waste rubber modified asphalt can significantly prolong the service life of road. The research process in hot oxygen

ultraviolet and water aging behaviors of waste rubber modified asphalt in domestic and abroad were summarized in this paper. The aging characteristics of rubber modified asphalt were analyzed through characterizing the performance and microstructure changes. Under the action of heat and oxygen

ultraviolet radiation and water

the aging take place in the rubber modified asphalt

the softening point increase

the penetration decreases and the carbonyl content increases. Especially

the ultraviolet light and oxidation aging deeply affects the aging performance of the rubber modified asphalt after water aging

which was aggravated coupled with water. The water dissolves part of the aging products and promotes the aging of asphalt rubber. At present

there is little research and analytical method on the change of structure performance of rubber and the environmental coupling factors on the aging process of the rubber modified asphalt

which need more attention in future studies.