纤维环氧沥青混凝土在道路与轨道平交口的应用

Application of Fiber Epoxy Asphalt Concrete in Intersection of Roads and Rails

为解决道路与轨道平交口水泥混凝土铺装产生的破碎开裂及行车振动大等缺陷,设计一种AC-13型纤维环氧沥青混合料,并采用车辙试验、浸水马歇尔试验以及冲击试验分析其高温稳定性、水稳定性以及抗冲击性能。结果表明:AC-13型纤维环氧沥青混合料的最佳油石比为5.2%;纤维显著提高了普通沥青混合料与环氧沥青混合料的动稳定度、残留稳定度与冲击功;纤维环氧沥青混凝土可应用于城市道路与电车轨道平交口铺装。

In order to solve the crushing, cracking and driving vibration caused by the cement concrete pavement at the intersection of roads and rails, an AC-13 fiber epoxy asphalt mixture was design, and the rutting test, Marshall immersion test and impact test were used to analyze the high-temperature stability, water stability and impact resistance. The results show that the best asphalt-aggregate ratio of AC-13 fiber epoxy asphalt mixture is 5.2%; the fiber significantly improves the dynamic stability, residual stability and impact energy of ordinary asphalt mixture and epoxy asphalt mixture; fiber epoxy asphalt concrete can be applied to the pavement of intersections of urban roads and tramways.