High water-cement ratio SCC robustness with novel cellulose based admixture

被引：0

作者：

Kuosa, Hannele ^{[1
]}

机构：

[1] VTT Tech Res Ctr Finland, POB 1000, FI-02044 Espoo, Finland

来源：

NORDIC CONCRETE RESEARCH | 2011年 / 43卷 / 01期

关键词：

Self compacting concrete (SCC); robustness; stability; novel cellulose based admixture;

D O I：

暂无

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

Novel cellulose based admixture (NCBA) grades were used to enhance medium strength SCC (w/c 0.60) robustness. Comparison was made with the use of limestone powder and a commercial stabilizer. Robustness was evaluated by measuring the effect of water content variation on slump-flow, viscosity by t(500)-time, sieve segregation and water bleeding. Hardened concrete segregation and strength was also evaluated. Robustness assessment was based on selected limiting values for both workability and stability properties. Novel cellulose based admixture was an effective way in SCC robustness enhancement. Robustness evaluation was possible by common SCC testing.

引用

页码：69 / 72

页数：4