沥青路面冷再生路用性能试验

Test on Pavement Performance for Cold Recycling of Asphalt Pavement

为了研究水泥对废旧沥青混合料路用性能的影响,通过系统的室内试验研究,对旧路面层与基层沥青混合料(Ⅰ型混合料)和旧路面层材料(Ⅱ型混合料)的物理力学性质进行了分析与评定;对冷再生材料的路用性能进行了研究。结果表明:对于试验所用冷再生材料,只要水泥剂量不小于5%,建议采用Ⅰ型混合料的冷再生施工方法。

In order to research the influence of cement on pavement performance of waste asphalt mixture, physical and mechanical characteristics for asphalt mixture of surface course and base of existing pavement （ Ⅰtype mixture） and material of surface course of existing pavement （Ⅱtype mixture） are analyzed and evaluated via systematic indoor test. The pavement performance of cold recycling material is studied, the result of which indicates that the Ⅰ type mixture is recommended for cold recycling construction as well as the content of cement is not less than 5%.