路用水泥混凝土坍落度经时损失试验研究  

Research on the Gradual Loss in Slump of the Road Cement Concrete

作　　者：黄云涌[1] 肖少华[1] 韩春来[1] 

机构地区：[1]长沙理工大学交通运输学院,湖南长沙410004

出　　处：《公路工程》2011年第5期61-64,89,共5页Highway Engineering

摘　　要：路用水泥引气混凝土使用非常广泛,但其坍落度损失却一直是有关建设施工单位比较棘手的问题。针对引气水泥混凝土路面,分析了混凝土坍落度损失的机理并通过大量室内试验数据详细阐述了水灰比、减水剂、引气剂以及混凝土所处状态对引气混凝土坍落度损失的影响。此外,还对如何控制混凝土坍落度的损失提出了自己的一些见解。The Cement Concrete is widely used in Highway Pavements,and its slump losses is still a thorny question to the related construction companys. Writer mainly focused on the Air-entrained Cement Concrete Pavement, has analyzed the mechanism of the slump loss and detailed illustrated the effect of the water-cement ratio, water reducing agent, air-entraining agent and the state of motion of the concrete to the slump loss by the massive laboratory test data. In addition, put forward myself views on how to control the concrete slump loss.

关 键 词：引气混凝土 坍落度经时损失 含气量 静态和动态 

分 类 号：U416.03[交通运输工程—道路与铁道工程]