复合阻热沥青路面降温效果及路用性能研究  

Study on Cooling Effect and Road Performance of Composite Heat-resistant Asphalt Pavement

作　　者：丁彬 Ding Bin(JSTI GROUP,Nanjing,China)

机构地区：[1]苏交科集团股份有限公司,江苏南京

出　　处：《科学技术创新》2025年第11期102-105,共4页Scientific and Technological Innovation

摘　　要：为提高沥青路面阻热效果,改善路面高温抗车辙性能,通过将不同阻热技术组合研究,提出一种降温效果更好的低吸热复合阻热沥青路面,并研究复合路面的降温效果及力学路用性能。结果表明:复合阻热技术降温效果更显著,单一阻热技术最高可降温5.0℃~6.4℃,复合阻热技术最高可降温7.6℃~8.9℃;三种复合阻热技术的降温效果排序为组合B(热反射涂层+热阻路面)>组合A(彩色路面+热阻路面)>组合C(热反射涂层+热阻改性剂);降温效果与动稳定度提升效果并不一致,组合A、组合B、组合C动稳定度分别提升38.1%、46.8%和54.2%;且组合C通过增强材料的内部结构和黏结性,可显著提升混合料低温性能和水稳定性。In order to improve the heat resistance effect of asphalt pavement and improve the high temperature anti-rutting performance of pavement,a low heat absorption composite heat resistance asphalt pavement with better cooling effect was proposed by combining different heat resistance technologies,and the cooling effect and mechanical road performance of composite pavement were studied.The results show that the composite heat resistance technology has a more significant cooling effect.The single heat resistance technology can reduce the temperature by 5.0°C~6.4°C,and the composite heat resistance technology can reduce the temperature by 7.6°C~8.9°C.The cooling effect of the three composite heat-resistant technologies is ranked as combination B(heat-reflective coating+thermal resistance pavement)>combination A(color pavement+thermal resistance pavement)>combination C(heat-reflective coating+thermal resistance modifier);the cooling effect is not consistent with the improvement effect of dynamic stability.The dynamic stability of combination A,combination B and combination C is increased by 38.1%,46.8%and 54.2%respectively.And the combination C can significantly improve the low temperature performance and water stability of the mixture by enhancing the internal structure and adhesion of the material.

关 键 词：路面工程 阻热沥青路面 高温抗车辙性能 降温效果 路用性能 

分 类 号：U416.2[交通运输工程—道路与铁道工程]