沥青面层桥面反白的病害分析与防治  

Disease Analysys of Reverse White in Asphalt Deck Pavement and Its Preventive Measures

作　　者：王姣兰[1] 张厚记[2] 

机构地区：[1]武汉理工大学期刊社,武汉430070 [2]湖北沪蓉西高速公路建设指挥部,恩施445000

出　　处：《武汉理工大学学报》2009年第23期16-18,共3页Journal of Wuhan University of Technology

摘　　要：针对我国沥青路面桥面反白的通病,通过pH值检测发现反白物质呈碱性,从源头上分析该物质应该来源于水泥水化产物的溶解并再结晶。通过研究沥青路面的现场空隙率和水通道,提出了加强压实度堵水,完善排水系统等防治方案,得到了较好的效果。Reverse white disease is a common disease in asphalt deck pavement. The material was alkaline because its pH was 9-10. And it came from dissolve and re-crystallization of cement hydration. Through analysing asphalt pavement＇s porosity and water passage, the preventive measures of strengthening compaction and improving drainage works are put forward.

关 键 词：桥面 反白 病害分析 现场空隙率 

分 类 号：U444[建筑科学—桥梁与隧道工程]