EFFECT OF PHASE CHANGE MATERIAL ON TEMPERATURE SUSCEPTIBILITY OF ASPHALT

摘要：

High-temperature is a major problem for asphalt pavement in summer.A possible answer to this problem is the application of phase change material (PCM),thereby increasing thermal energy storage and reducing temperature-peak of pavement.This research aims to analyze the influence of PCM on temperature susceptibility of asphalt.Asphalt mortars were prepared with PCM contents of 3％,5％ and 7％ respecti ely.Penetration indexes (PI),viscosity-temperature susceptibility (VTS) were introduced to evaluate temperature susceptibility of asphalt.The results indicate that the addition of PCM can result in a slight increase in the temperature susceptibility of asphalt,while there is an optimum content that can minimize the influence.Thus,it is promising to use PCM in asphalt concrete to solve the problem of pavement high-temperature.

关键词： PCM asphalt temperature susceptibility penetration viscosity

作者: M.Z.Chen L.Wan S.P.Wu J.Hong G.J.Xu

作者单位: Key Laboratory of Silicate Materials Science and Engineering.VAjhan University of Technology,Wuhan,Hubei 430070,China

会议类型: 国际会议

会议名称: The Third International Conference on Heterogeneous Material Mechanics(第三届国际非均匀材料力学会议)

会议地点: 上海

会议语种:英文

页码: 576-579

在线出版日期: 2011-05-22（万方平台首次上网日期，不代表论文的发表时间）