沥青路面相变控温技术研究现状及展望

沥青路面材料作为一种感温性材料,在长期高温或低温环境下易出现路用性能下降和路面损害发生,也是城市"热岛效应"的诱因之一。相变控温技术作为解决沥青路面温度影响的最新手段,由于其良好的控温、调温效果,得到了广泛的关注和研究。文章介绍了路用相变材料的原理、分类,总结了目前主要的沥青路面相变控温技术的研究应用现状,分析了其主要优势和存在的问题,提出了加强路面结构组合设计、强化工程实践等努力方向,以期对下一步的研究和应用提供参考。

As a kind of temperature-sensitive material,asphalt pavement material is prone to decline of road performance and pavement damage in long-term high temperature or low temperature environment,which is also one of the inducements of urban"heat island effect".As the latest means to solve the temperature influence of asphalt pavement,phase change temperature control technology has been widely concerned and studied because of its good temperature control and temperature regulation effect.This paper introduces the principle and classification of road phase change materials,summarizes the present situation of the research and application of the main phase change temperature control technology of asphalt pavement,and analyzes its main advantages and existing problems.This paper puts forward the direction of strengthening pavement structure combination design and strengthening engineering practice,in order to provide reference for further research and application.