冯炜殷卫永王朝辉王新岐



文章编号:1000033X(2016)12005303
收稿日期:20160529
摘要: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。
关键词:道路材料;降温稀浆封层;设计级配;路用性能
中图分类号:U416.03文献标志码:B
Research on Pavement Performance of Cooling Slurry Seal
FENG Wei1,YIN Weiyong2, WANG Chaohui2, WANG Xinqi1
(1. Tianjin Municipal Engineering Design & Research Institute, Tianjin 300051, China;
2. School of Highway, Changan University, Xian 710064, Shaanxi, China)
Abstract: 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, antipermeability and bonding, which all meet the requirements of technical specification and practical applications.
Key words: road material; cooling slurry seal; design gradation; pavement performance
0引言
稀浆封层作为一种技术成熟的预防性养护技术,以其良好的防水、抗滑、耐磨耗、修复车辙、恢复路表功能等优良性能被广泛应用[13]。目前,关于稀浆封层的研究主要集中于稀浆封层最佳使用时间、路用性能及其施工工艺等[45],关于稀浆封层降低路面温度的相关研究未见报道。研发具有降温功效的稀浆封层,不仅有助于处治路面病害,还能进一步缓解路面高温病害,显著提高路面服务水平,具有广阔的应用前景和巨大的社会效益。
为此,本文制备2种具有降温功效的稀浆封层,通过构造深度试验、摆值试验、湿轮磨耗试验及轮辙变形试验、渗水系数试验等方法,全面评价降温稀浆封层的各项路用性能,确保降温稀浆封层在实际工程中具有良好的应用效果。
1降温稀浆封层的制备……