相变材料在冬季沥青路面中的应用分析

Analysis on the Application of Phase Change Materials in Winter Asphalt Pavement

沥青路面在冬季低温雨雪气候下易发生结霜、结冰现象,致使路面抗滑性能降低,从而导致事故发生率上升,给行车安全及路面使用性能带来严重影响。传统的被动式除雪法效率低,且须占用行车道影响道路正常运行,化学融雪剂还会造成土壤和水污染。本文通过文献调研,总结常见的主动融雪化冰路面类型,分析相变材料在沥青路面中的应用研究重点,提出将相变材料掺入沥青路面中,以预防或减少冬季沥青路面冰冻病害。

The asphalt pavement is prone to frost and icing in the cold rain and snow climate in winter,resulting in a decrease in the anti-skid performance of the pavement and an increase in the accident rate,which has a serious impact on driving safety and pavement performance.Traditional passive snow removal methods are inefficient and require traffic lanes to affect the normal operation of roads,and chemical snow melting agents can cause soil and water pollution.Through literature research,this paper summarizes the common types of active snow melting ice pavement,analyzes the application research focus of phase change materials in asphalt pavement,and proposes to incorporate phase change materials into asphalt pavement in order to prevent or reduce the freezing disease of asphalt pavement in winter.