大跨径环氧沥青混凝土钢桥面铺装裂缝修复材料性能试验研究  

Research on Performance of Crack Seal Materials for Long Span Steel Deck Epoxy Asphalt Pavement

作　　者：张辉[1] 潘友强[1] 张健[1] 朱雷[1] 

机构地区：[1]江苏省交通科学研究院股份有限公司新型道路材料国家工程实验室,南京市211112

出　　处：《公路》2013年第12期36-39,共4页Highway

基　　金：江苏省自然科学基金项目;项目编号BK2011085

摘　　要：环氧沥青混凝土是国内外大跨径钢桥面铺装的主要类型之一,目前国内已完成的环氧沥青混凝土铺装面积达100万m2以上。然而不少正交异性板钢桥面由于国内高温重载等恶劣使用条件,使用不久后就出现了比较严重的疲劳裂缝。为了提高环氧沥青混凝土铺装裂缝处治效果,通过对10余种材料试验比选,从施工和易性、力学性能和耐久性等指标研究了环氧沥青混凝土钢桥面铺装的裂缝修复材料。结果表明,采用高渗透性、快速固化、耐久且具有一定变形性能和较高黏结强度的材料,可以对环氧沥青混凝土铺装取得良好的裂缝封闭和修复效果。最终得出研发的高变形性能C型和高强度D型环氧树脂材料,均适用于环氧沥青混凝土钢桥面铺装的裂缝修补,研究成果对提高环氧沥青混凝土钢桥面铺装使用性能,延长铺装使用寿命具有重要意义。Epoxy asphalt concrete has been one of the main types of long span steel deck pavements m China and abroad which has been paved over 1 000 thousands square meters. But many fatigue cracks appear before its designed service period mainly because of high temperature and heavy load in China. Some crack seal materials are tested by workability, mechanical property and durability. Experiment results show that it will get better effects if using high permeable, high bond strength and deformation performance, rapid solidified and durable crack seal materials. In this paper it is indicated that developing crack materials including high deformation and high strength epoxy resin named C and D apply to repair cracks of epoxy asphalt pavement. Research results have important values to improve pavement performance and prolong serving life of long span steel deck epoxy asphalt pavement.

关 键 词：环氧沥青 钢桥面铺装 灌缝 快速修复 施工和易性 

分 类 号：U416.217[交通运输工程—道路与铁道工程]