高保坍高强水下不分散混凝土的研究及在船台滑道工程中的应用  

Study on Anti-washout Highly Slump Retention High-strength Concrete and it＇s Application in Slideway of Boatyard

作　　者：陈国新[1,2] 祝烨然[1] 卢安琪[1] 刘立中 

机构地区：[1]南京水利科学研究院瑞迪高新技术公司,江苏南京210024 [2]东南大学材料科学与工程学院,江苏南京211189 [3]中交二航四公司,安徽芜湖241000

出　　处：《中国包装科技博览（混凝土技术）》2010年第11期45-47,共3页China Science and Technology Review

摘　　要：通过各种外加剂的选型及配比优化，研制出一种高保坍型的混凝土水下不分散剂。应用该种水下不分散剂，并通过配合比优化试验，设计出一种强度标号达到C40以上，2h后坍扩度仍大于50cm，流速小于15s，自密实、自流平的水下不分散混凝土，并在芜湖江东船厂3万吨级船台滑道的施工中得到了成功应用。A highly slump-retaining, self-compacting, anti-washout admixture was prepared by optimizing the type and dose of some admix- ture. Using this kind of anti-washout admixture, accompanying with mix design, the concrete with good workability and strength grade over C40, extension bigger than 50cm after 2h, self-compacting, self-leveling and anti-washout was developed. The concrete was successively applied in 30,000 tons grade slideway of Wuhu Jiangdong Dockyard.

关 键 词：高强混凝土 水下不分散 高保坍 自密实 应用 

分 类 号：TU528.042[建筑科学—建筑技术科学]