硅酸盐通报2012，Vol.31Issue(2)：469-474,6.
减水剂的品种和掺量对预拌混凝土坍落度/扩展度经时损失的影响
Effect of Water Reducer Varieties and Amounts on the Gradual Loss in Slump and Flow of the Ready-mixed Concrete
孙庆巍 1周梅 1陈健2
作者信息
- 1. 辽宁工程技术大学建筑工程学院,阜新123000
- 2. 阜新享鑫房地产开发有限公司,阜新123000
- 折叠
摘要
Abstract
With the popularity of ready-mixed concrete, the gradual loss in slump of the ready-mixed concrete often causes a lot of problems that the ready-mixed concrete is hard to unloading from concrete mix vehicle, pumping and dense molding, thus influences construction efficiency and concretes quality. The experiments on the effect of water reducer amounts and varieties on the gradual loss in slump and flow as well as compressive failure load values of the ready-mixed concrete are carried out. which is benefit for engineering. The test results show that, high performance water reducer can improve the initial fluidity of concrete, but it leads to the serious rheology gradual loss. Water reducer latter admixing and double-combined mineral admixtures helps to improve the slump and the flow of gradual loss.关键词
粉煤灰/矿粉/减水剂/坍落度/经时损失Key words
fly ash/mineral powder/water reducer/slump/gradual loss分类
通用工业技术引用本文复制引用
孙庆巍,周梅,陈健..减水剂的品种和掺量对预拌混凝土坍落度/扩展度经时损失的影响[J].硅酸盐通报,2012,31(2):469-474,6.
