Research On The Performance Of Domestic Epoxy Asphalt Mixture

Epoxy asphalt is composed of asphalt, epoxy resin, curing agent and other additive, which has excellent physical performance and mechanical performance with its thermoset property. Epoxy asphalt mixture has higher strength and toughness, better anti-fatigue performance, temperature stability, anticorrosion property and bonding force than conventional asphalt mixture. Therefore, the research on epoxy asphalt concrete for long-span steel deck pavement was introduced into china by the steel deck pavement of 2nd Nanjing Yangtse River Bridge.The study before object mostly was American epoxy asphalt in the projects. The research on domestic epoxy asphalt is just in the starting phase. The performance of domestic epoxy asphalt and its mixture is studied in this thesis. Then, its applicability is discussed to accelerate the process of steel deck pavement technology of domestic epoxy asphalt mixture.To confirm the best mixed proportion, the difference of viscosity and tension performance are compared with different proportion between asphalt and epoxy resin by tests. Then, it makes target mixture proportion design to study on the aggregate gradation scope, optimum asphalt content of mixture, the temperature and time of curing.After target mixture proportion design, strength, high temperature stability, anti-crack performance in low temperature, water stability, anti-oil performance and anti-fatigue performance of mixture are researched on. Moreover, the anti-aging performance of domestic epoxy asphalt and its mixture are studied by TFOT(Thin Film Oven Test).In the end, with the performance of domestic epoxy asphalt, the steel deck pavement construction tecgnolegy suggestions and requirements are brought forward in order to offer the reference in domestic epoxy asphalt concrete pavement.