钢桥面环氧沥青混凝土铺装层病害冬季修复技术研究  

Study on Winter Maintenance Technique of Epoxy Asphalt Concrete Pavement on Steel Bridge Deck

作　　者：吴海涛[1] 钱振东[1] 陈磊磊[1] 

机构地区：[1]东南大学智能运输系统研究中心,江苏南京210096

出　　处：《施工技术》2014年第23期73-75,100,共4页Construction Technology

基　　金：交通部西部交通建设科技项目(2009318000086)

摘　　要：冬季温度较低,钢桥面环氧沥青混凝土铺装层容易出现裂缝,雨水渗入以及冰冻后在荷载作用下进而恶化为坑槽病害,铺装层病害若不及时处理会导致铺装层加速加剧破坏。针对冬季修复存在工作环境温度低、现场温度散失快等修复难点,结合低温时主要病害,比选了冬季修复材料,并通过室内试验分别研究温度对裂缝与坑槽修复材料的施工性能影响。最后结合工程实际,提出了改善冬季施工的具体措施和工艺,经验证冬季病害的平均修复有效寿命延长至4个月以上。In winter,there are much more cracks on epoxy asphalt concrete pavement of steel bridge deck,then deteriorate into pits diseases when frozen happens. Epoxy asphalt pavement diseases will accelerate damage if appropriate and timely measures were not taken. Due to the existing difficulties of low field temperature and temperature losing quickly in winter,this paper analyzes how to choose repair materials in low temperature construction according to winter main diseases. On the basis of laboratory experiments,this paper studies the effect of temperature on the crack and pits repair material and pits.And through project practice,specific measures to improve winter maintenance skills are purposed and proved by the average life of disease extending to 4 months.

关 键 词：桥梁工程 钢桥面 环氧沥青 养护 施工技术 

分 类 号：U443.33[建筑科学—桥梁与隧道工程]