水灰比对外掺氧化镁混凝土自生体积变形的影响  

Influence of Water Cement Ratio on Autogenous Volume Deformation of Concrete with Magnesium Oxide

作　　者：李维维[1] 陈昌礼[1] 方坤河[1,2] 杜毅[3] 

机构地区：[1]贵州师范大学材料与建筑工程学院,贵州贵阳550059 [2]武汉大学水资源与水电工程科学国家重点实验室,湖北武汉430072 [3]贵州大学职业技术学院,贵州贵阳550003

出　　处：《水电能源科学》2011年第10期57-59,共3页Water Resources and Power

基　　金：国家自然科学基金资助项目(50969002)

摘　　要：为研究外掺氧化镁混凝土性质,试验研究了水灰比对外掺氧化镁混凝土自生体积变形的影响。结果表明,水灰比对外掺氧化镁混凝土的自生体积变形有重要影响,混凝土的自生体积变形随着水灰比的增大而增大。同时,再次验证了外掺氧化镁混凝土的延迟微膨胀特性。In order to analyze the property of concrete with magnesium oxide, the influence of water cement ratio on autogenous volume change of concrete is studied through experiments. The results show that it has important influence of water cement ratio on autogenous volume change of concrete with magnesium oxide; the autogenous volume change is larger with water cement ratio increasing; meanwhile, the delay micro expansion performance of concrete with magnesium oxide is verified again.

关 键 词：MGO混凝土 自生体积变形 水灰比 水工混凝土 

分 类 号：TV431[水利工程—水工结构工程]