钢管拱内补偿收缩自密实混凝土的试验研究  

The reserach experiment of steel tube arch compensation shrinkage and concrete self-compacting

作　　者：郭晨绯 王君实 Guo Chenfei;Wang Junshi(Test Center of Construction and Installation Company of China Railway Third Bureau,Taiyuan 030006,China)

机构地区：[1]中铁三局建安公司试验中心,山西太原030006

出　　处：《山西建筑》2020年第7期98-100,共3页Shanxi Architecture

摘　　要：结合太焦高铁跨某市政道路特大桥钢管拱混凝土工程实例,对钢管混凝土配合比设计及补偿收缩和自密实性能进行试验研究,经实践达到了预期效果。提出"减剂法"验证配合比的稳定性的做法。Combine the project example of Taiyuan-Jiaozuo High-Speed Railway astride a municipal road steel tube armored concrete arch bridge,that the contraction team has done the research experiment for the mix-design,compensation shrinkage and selfcompacting of concrete filled steel tube,and the expected effect has been acchieved through practice. The"subtraction method"is proposed to verify the stability of mixtrue raio.

关 键 词：补偿收缩混凝土 自密实 配合比 稳定性 

分 类 号：TU502[建筑科学—建筑技术科学]