“白改黑”工程中常用反射裂缝防治材料效果分析研究  

Analysis and Study on Effect of Common Reflection Crack Prevention Materials in "White to Black" Projects

作　　者：王敏[1,2] 张东长[2] 窦彦磊[1,2] 

机构地区：[1]重庆交通大学,重庆400074 [2]招商局重庆交通科研设计院有限公司,重庆400067

出　　处：《公路交通技术》2010年第4期38-42,共5页Technology of Highway and Transport

摘　　要：针对城市道路水泥混凝土路面改造成沥青混凝土路面(又称"白改黑")的反射裂缝问题,对无纺土工布、土工格栅、镀锌铁板、SBS改性沥青防水卷材等4种应力吸收层进行2种不同罩面层厚度的实验室评价。结果显示,除土工格栅外,其它措施对防治荷载型反射裂缝都是有效的,但单纯依靠增加罩面层厚度来防治反射裂缝的效果是有限的。Aiming at reflection crack problem in urban roads when modified from cement concrete pavement into asphalt concrete pavement,this paper performs a lab evaluation for four stress absorption interlayers including non-woven geotextile,geogrid,galvanized iron sheet and SBS modified asphalt waterproof roll based on thickness of two different finishing coats.The result shows that the other three materials except geogrid are effective for prevention of loading reflection cracks,however,dependence on adding thickness of finishing coat only to prevent reflection cracks has the limited effect.

关 键 词：城市道路 白改黑 薄层罩面 反射裂缝 应力吸收层 

分 类 号：U416.217[交通运输工程—道路与铁道工程]