| Abstract: | Early water damage of asphalt pavement is one of the major types of destruction,so taking maintenance on asphalt pavement at the proper time is necessary. Many new maintenance materials and methods are in use nowadays to prevent pavement from water damage and skidding. This paper aims to study the effects of the silicone maintenance materials on thermal aging resistance of asphalt mixture. After thermal aging,the asphalt mixture using silicone materials and the control mixture are evaluated through their engineering properties,including indirect tensile modulus,low-temperature performance and fatigue resistance. The results indicate that the silicone materials used as repairing material can improve low-temperature performance and fatigue resistance of asphalt mixture,and decrease the indirect tensile modulus ratio before and after thermal aging. Consequently,the silicone maintenance material has the ability to protect asphalt mixture from thermal aging. |
