南宁永和大桥C50钢管混凝土配合比试验研究  

Test Study of Mix Proportioning of C50 Concrete Filled into Steel Tube Structure of Yonghe Bridge in Nanning

作　　者：谢希凡[1] 石勇 

机构地区：[1]广东省长大公路工程有限公司,广东番禺510000 [2]南宁市城市建设投资发展总公司,广西南宁530031

出　　处：《桥梁建设》2005年第4期82-84,共3页Bridge Construction

摘　　要：介绍南宁永和大桥钢管混凝土配合比试验,研究其限制膨胀率等各项性能,通过多因素试验方法研究胶材用量变化、砂率、不同外加剂、外掺料掺量等因素对钢管混凝土性能的影响,确定了C50钢管混凝土的配合比。The tests of mix proportioning of C50 concrete filled into steel tube structure of Yonghe Bridge in Nanning are presented. Various behavior of the concrete that can restrict expansion rate is studied, and the mix proportioning of the concrete is finalized after influences of varied usage of binding materials, sand ratio, different admixtures and adding materials on the concrete performance are investigated through several test methods.

关 键 词：钢管混凝土 配合比 试验 研究 

分 类 号：U214.18[交通运输工程—道路与铁道工程] U448.22[建筑科学—桥梁与隧道工程]