三渣基层裂缝成因初探  

Initial Studies on Causes for Cracks in Lime-flyash Concree Base

作　　者：庞荣庆 

机构地区：[1]上海外环线西北段1.4标同济监理,上海200092

出　　处：《中国市政工程》2002年第1期19-20,55,共3页China Municipal Engineering

摘　　要：对三渣基层裂缝的成因机理及外部因素影响进行了初步研究。阐明要减少或消除三渣基层裂缝的发生 ,应从修正混合料配合比、改善骨灰比、调整内部结构减低二灰含水量等因素入手 ,同时对三渣基层下土路基填挖、河浜、鱼塘。Initial studies are made on the mechanism of crack formation in the lime flyash concrete base, and external factors. It is stated that to reduce or eliminate such cracks it is necessary to improve the mix ratio of the mixture, adjust the internal structure to lower the water content of lime and flyash. Meanwhile the soil subbase shall be excavated and backfilled, not neglecting the quality of backfill

关 键 词：三渣基层 裂缝 硬化作用 碳化 悬浮结构 镶嵌结构 亲水性物质 含水量 路基 

分 类 号：U418.5[交通运输工程—道路与铁道工程]