定形PEG/SiO_2复合相变材料制备及在半柔性路面中的应用  

Study on Preparation and Application of PEG/SiO_2 Compound Phase Change Materials for Semi-flexible Pavement

作　　者：沙莎[1] 

机构地区：[1]三江学院土木工程学院,江苏南京210012

出　　处：《筑路机械与施工机械化》2016年第1期63-66,共4页Road Machinery & Construction Mechanization

摘　　要：为了缓解城市热岛效应,通过试验制备定形PEG/SiO_2复合相变材料并将其应用于半柔性路面,研究相变材料对半柔性路面路用性能和调温性能的影响。结果表明,相变材料对半柔性沥青路面的低温抗裂性有改善作用,但会降低高温稳定性和水稳定性;当掺量较小时,相变材料对半柔性路面的调温性能改善较弱,而掺量较大时,对调温性能的改善效果显著。In order to alleviate the urban heat island effect, the PEG/SiO2 compound phase change materials were prepared by experiments and applied to semi-flexible pavement. The effect of phase change materials on road performance and temperature control performance of semi-flexible pavement was studied. The results show that the phase change materials improve the anticracking performance of semi-flexible asphalt pavement at low temperature, while reducing the high temperature stability and water stability. And the effect of phase change materials on temperature control performance of semi-flexible pavement is related to the mixing amount.

关 键 词：半柔性路面 相变材料 路用性能 调温性能 

分 类 号：U414.1[交通运输工程—道路与铁道工程]