外掺MgO与水泥内含MgO在大体积混凝土中的膨胀效应  

Expansive effect of concrete with MgO as embedded component in cement or as expanding agent in mass concrete

作　　者：陈昌礼[1] 李承木[2] 

机构地区：[1]贵州师范大学工程材料研究所,贵州贵阳550059 [2]中国水电顾问集团成都勘测设计研究院,四川成都610072

出　　处：《混凝土》2009年第11期74-77,共4页Concrete

基　　金：贵州省自然科学基金项目(黔科合J字[2008]2053号)

摘　　要：为了了解外掺MgO膨胀剂与水泥内含的MgO组分在大体积混凝土中的膨胀效应,分析了MgO膨胀剂与内含MgO水泥的烧成条件、质量稳定性、质量和掺量控制标准,以及实际工程的应用效果。结果表明:使用外掺MgO膨胀剂方式,比采用高含MgO水泥生产的MgO混凝土,膨胀效果好,且更能发挥MgO混凝土技术的优越性。In order to find out the expansive effect of MgO both embedded component in cement and as expanding agent in mass concrete, this paper analyses the calcine condition, quality stability, quality and quantity control standards of the embedded MgO component in cement and the MgO expanding agent, and applied effect of real engineerings.The result shows that the expanding effect of concrete which is added with MgO ex- panding agent is better than the one made of slight high MgO component cement, and more advantages of MgO concrete technology can be taken.

关 键 词：建筑材料 氧化镁混凝土 膨胀效应 煅烧制度 

分 类 号：TU528.041[建筑科学—建筑技术科学]