降温稀浆封层路用性能研究

Research on Pavement Performance of Cooling Slurry Seal

为研究稀浆封层的降温功效与路用性能，制备了2种降温稀浆封层，通过构造深度试验、摆值试验、湿轮磨耗试验、轮辙变形试验、渗水系数试验等方法，全面评价了降温稀浆封层各项路用性能。结果表明：不同类型降温稀浆封层降温幅度随外界环境温度的升高逐渐增大，降温幅度约为3℃～5℃；不同类型降温稀浆封层具有良好的抗滑性能、耐磨耗性能、高温稳定性能、抗渗水性能和粘结性能，均能满足技术指南和工程应用的要求。

In order to study the cooling effect and pavement performance of slurry seal, two kinds of cooling slurry seal were prepared. The pavement performance of the cooling slurry seal was thoroughly evaluated by structural depth test, BPN test, wet abrasion test, rut deformation test and permeability test etc. The results show that the cooling range of slurry seal is about 3℃-5℃, increasing when the ambient temperature rises. The cooling slurry seal has good performance in skid resistance, wear resistance, stability at high temperature, anti-permeability and bonding, which all meet the requirements of technical specification and practical applications.