C70高强混凝土的工程应用  

Application of C70 High Strength Concrete in Building Construction

作　　者：阎培渝[1] 余成行 周予启 刘卫未 

机构地区：[1]清华大学土木工程系,北京100084 [2]北京市中超混凝土有限责任公司,北京100024 [3]中建一局集团建设发展有限公司,北京100102

出　　处：《施工技术》2015年第12期1-4,31,共5页Construction Technology

基　　金：国家自然科学基金面上项目(51278277);教育部博士点基金项目(20130002110033)

摘　　要：我国的超高层建筑工程中越来越多地使用C70高强混凝土建造承重结构钢-混凝土组合巨柱。这些高强混凝土多具有自密实性能,采用高抛法或顶升法施工。介绍了一些已经建成和正在建设的工程案例,讨论了原材料品质要求,配合比设计原则,生产与施工要点。C70 high strength concrete is used more and more to build heavy loaded steel reinforced concrete（ SRC） column in the construction projects of tall buildings in China. These high strength concrete show the self-compacting performance and were constructed with the method of lifting-up or throwing down from top. Some project cases which were completed or under construction are introduced in this paper. The quality requirement of raw materials,the principle of mix proportion design,key factors of quality controlling during manufacture and construction of concrete are discussed.

关 键 词：高强混凝土 组合柱 原材料 配合比 施工 

分 类 号：TU528.31[建筑科学—建筑技术科学]