高黏度改性沥青材料在湿热环境下的路用性能评估  

Evaluation of Road Performance of Modified Asphalt with High Viscosity in Hot and Humid Environments

作　　者：李金翔 LI Jinxiang(Guizhou Communications Polytechnic University,Guiyang 551400,China)

机构地区：[1]贵州交通职业大学,贵州贵阳551400

出　　处：《上海建材》2024年第6期61-65,共5页Shanghai Building Materials

基　　金：贵州省教育厅《炭质泥岩路用性能提升及填筑关键技术工程应用研究》(黔教技[2024]302号);贵州交通职业大学《湿热环境下沥青混凝土路面服役性能改善机制研究》科研启动金项目(KYQD2022016)。

摘　　要：高黏度改性沥青在湿热环境下的路用性能试验评估结果表明,其具备优异的性能。在高温多雨的湿热地区,通过增强沥青与集料的黏结力,使用高黏度改性沥青可显著提升路面的高温稳定性和抗水损害能力。适量添加SBS和废胶粉,不仅增强了沥青的内聚力,还改善了其低温韧性,确保了路面的耐久性。在湿热条件下高黏度改性沥青的施工性能和易性良好,能够满足复杂环境下的施工要求。高黏度改性沥青在湿热环境下展现出卓越的路用性能,为提升道路安全性和舒适性提供了有力保障。The road performance test of high viscosity modified asphalt in hot and humid environments proves that it has excellent performance characteristics.In hot and humid areas with high temperatures and rains,modified asphalt with high viscosity can significantly improve the high-temperature stability and water damage resistance of pavement by enhancing the bonding force between asphalt and aggregate.Besides,the appropriate addition of SBS and fine control of waste rubber powder content not only enhances the cohesion of the asphalt but also improves the low-temperature toughness,ensuring the durability of the road surface.The high viscosity modified asphalt obtains considerable construction workability under hot and humid conditions and can satisfy the construction requirements under complex environments.It also shows excellent road performance in hot and humid environments,acting as a strong guarantee for improving road safety and comfort.

关 键 词：高黏度改性沥青 湿热环境 路用性能 高温性能 低温性能 稳定性 

分 类 号：TU535[建筑科学—建筑技术科学]