热致变色沥青微观机理与温控性能  

Study on micro mechanism and properties of thermochromic asphalt

作　　者：周云 ZHOU Yun(China Design Group Co.,Ltd.,Jiangsu Nanjing 210014 China)

机构地区：[1]华设设计集团股份有限公司,江苏南京210014

出　　处：《山东交通科技》2023年第2期144-147,共4页

摘　　要：重点通过AFM(原子力显微镜)、GPC(凝胶渗透色谱)试验探究了热致变色沥青的微观机理,然后通过制作三层路面结构进行室内光照模拟试验,验证热致变色沥青的实际温控效果。试验结果表明:微观试验证明热致变色材料增加了沥青大分子和蜂状结构比例,表明热致变色沥青的性能提升。室内温控模拟试验证明,热致变色沥青路面可在夏季降低路面温度6.8℃,并且有效延缓冬季路面温度下降。This paper focuses on AFM(atomic force microscope)and GPC Gel permeation chromatography(GPC)test was used to explore the microscopic mechanism of thermochromic asphalt.Three layers of pavement structure were used to simulate indoor light to verify the actual temperature control effect of thermochromic asphalt.The test results showed that the thermochromic material increased the proportion of bitumen macromolecule and bee like structure,indicating that the performance of thermochromic asphalt improved.The internal temperature control simulation experiment shows that the thermochromic asphalt pavement can reduce the pavement temperature by 6.8℃in summer and effectively delay the decline of pavement temperature in winter.

关 键 词：沥青路面 热致变色材料 微观机理 室内模拟 

分 类 号：U416.217[交通运输工程—道路与铁道工程]