膨润土对预填骨料混凝土性能的影响  

The Influence of Bentonite on the Performance of Pre-placed Aggregate Concrete

作　　者：高振国[1] 罗永会[1] 耿辰晓[1] 

机构地区：[1]石家庄铁道学院材料科学与工程分院,河北石家庄050043

出　　处：《石家庄铁道学院学报》2006年第1期42-45,共4页Journal of Shijiazhuang Railway Institute

摘　　要：基于膨润土的特殊结构,研究了膨润土对预填骨料混凝土各方面性能的影响。掺加膨润土可使预填骨料混凝土强度提高14%以上,50次冻融循环后强度损失率降低10%,并可以有效改善预填骨料混凝土的施工工艺性能。The influence of bentonite on the performances of the pre - placed aggregate concrete is studied based on the special structure of bentonite. With bentonite, the strength of pre - placed aggregate concrete can be increased by about 14%, the loss of strength after 50 times freeze - thaw circle can be decreased by 10%, and the construction property of the pre - placed aggregate concrete is improved.

关 键 词：混凝土 预填骨料 膨润土 流动性 

分 类 号：TU528[建筑科学—建筑技术科学]