C70高强钢管混凝土的泵送顶升施工研究  

The lifting and conveying construction research of C70 high strength concrete filled steel tube

作　　者：卞振江 孟凡雷 李鹏 刘芳 刘军辉 

机构地区：[1]西麦斯(天津)有限公司,天津300300

出　　处：《商品混凝土》2012年第5期60-63,共4页Ready-Mixed Concrete

摘　　要：本文立足于滨海开发区于家堡北京建工的钢管混凝土施工,结合天津塘沽的原材料,通过配合比优化,探讨了C70高强混凝土的配合比和顶升施工工艺,研究结果表明,通过原材料和外加剂的选择、配合比的优化制备出了满足输送和顶升施工方案的C70高强钢管混凝土,为天津地区的C70高强混凝土顶升施工奠定了扎实基础。This article discussed about the C70 high strength concrete mix ratio and lifting and conveying construction technology based on the concrete filled steel tube construction technology by Beijing Construction Group located in YujiaBu,combined with the raw materials in Tanggu area,Tianjin,and through the optimal mix design.The research result showed that the C70 high strength concrete could be produced to meet the lifting and conveying construction approach through the selection of the raw materials and addmixtures as well as the optimal mix design.This establishes the solid foundation for C70 high strength concrete lifting and conveying constructuion technology for Tianjin areas.

关 键 词：C70高强自密实混凝土 钢管柱 止流阀 顶升 施工工艺 

分 类 号：TU755[建筑科学—建筑技术科学]