外掺氧化镁混凝土快速筑坝技术综述  

Review of quick damming technology of MgO concrete

作　　者：李承木[1] 

机构地区：[1]中国水电顾问集团成都勘测设计研究院科学研究所,四川成都610072

出　　处：《水利水电科技进展》2013年第5期82-88,共7页Advances in Science and Technology of Water Resources

摘　　要：全面总结了外掺氧化镁(MgO)混凝土快速筑坝技术的研究成果和工程经验,从基本理论、补偿原理、实现方法和施工技术等方面系统论述了外掺MgO混凝土快速筑坝技术的特点以及与传统柱状浇筑法的主要差异;阐明了MgO膨胀剂的特性及膨胀机理;介绍了外掺MgO混凝土的基本物理力学与变形性能,自生体积变形的特点和规律以及对仿真计算的影响,工程应用情况、应用条件与经济效益等,指出了设计、施工、试验和均匀性快速检测等工作中应当重视的问题。This paper summarized the research achievements and engineering experience for the quick damming technology of the MgO concrete.The characteristics of quick damming technique of the MgO concrete and its difference from traditional cylindrical pouring methods were systematically reviewed based on the fundamental theories,compensation principles,realization measures,and construction technologies.Characteristics and expansion mechanism of the MgO-type expansive agent were illustrated.The basic physical and mechanical deformation properties,characteristics and patterns of autogenous volume deformation,and its influence on numerical simulations,engineering applications,and economic benefits as well as its application conditions were introduced respectively.Finally,the paper presents the problems concerning with the designs,constructions,experiments,and rapid detection of uniformity.

关 键 词：外掺MGO混凝土 快速筑坝技术 通仓快速浇筑 MGO膨胀剂 自生体积变形 

分 类 号：TV544[水利工程—水利水电工程]