C35水下灌注超缓凝混凝土试验研究  

Experimental study on C35 underwater super-retared concret

作　　者：徐惠惠 李荣 张海涛 赵健 雷航舟 姚亮 XU Hui-hui;LI Rong;ZHANG Hai-tao;ZHAO Jian;LEI Hang-zhou;YAO Liang

机构地区：[1]中国西部水泥有限公司,陕西西安710100

出　　处：《砖瓦》2023年第9期19-22,共4页Brick-tile

摘　　要：通过对缓凝剂种类及掺量的优选,设计了C35水下灌注超缓凝混凝土配合比,检测了混凝土拌合物的工作性能、凝结时间、不同龄期强度等,并通过水化热及XRD测试,浅析了超缓凝混凝土的缓凝机理,以期为水下灌注钻孔咬合桩的设计和施工提供技术参考和指导。Through optimizing the kinds and dosage of the retarder,the mix ratio of C35 underwater super-re⁃tared concret was designed.Testing the working performance,setting time and strength at different ages of the concrete mix.Also the hydration and the XRD experiment were carried out in order to do a simple analysis on the retardation mechanism.We wish to provide some reference and guide for the disign and construction of the underwater secant pile wall.

关 键 词：超缓凝混凝土 缓凝剂 咬合桩 配合比设计 性能 

分 类 号：TU528[建筑科学—建筑技术科学]