混凝土道路抹面和冷水养护对早期裂缝的影响  

Effect of Concrete Pavement Plastering and Maintenance with Cold Water on Early Cracks

作　　者：岑国平[1] 洪建军[2] 孙程光[3] 张文华[1] 张拓[1] 

机构地区：[1]空军工程大学工程学院,陕西西安710038 [2]成都军区空军勘察设计院,四川成都610041 [3]成都军区空军后勤部,四川成都610041

出　　处：《施工技术（下半月）》2011年第2期101-104,共4页Construction Technology

摘　　要：为了减少混凝土道面的早期收缩裂缝,对道面施工过程中抹面工艺和冷水养护环节进行室内试验。首先确定试验的原材料和配合比,进而比较了不同抹面次数对混凝土抗裂性的影响;针对青藏高原地区养护用水温度过低问题,采用复合无纺布土工膜覆盖养护技术解决了此难题。试验结果表明,这两种方法都可以有效减少早期裂缝地产生,值得推广。To reduce the quantities of the early cracks in concrete pavement,the concrete plastering process and maintenance with cold water are tested.The concrete mix proportion design and optimization of raw materials are introduced.The influences of different plastering numbers to concrete crack resistance are compared.Because the water is very cold in Tibet plateau area,composite non-woven fabric is used to maintain concrete.The result shows that two methods are very useful and the quantities of early cracks can be reduced successfully.

关 键 词：混凝土道面 抹面 养护 早期裂缝 

分 类 号：U418[交通运输工程—道路与铁道工程]