Influence of Compounded Mineral Admixtures on Shrinkage and Early-Age Cracking Behaviors of Concrete

被引：1
|
作者：
Wang, Xuefang [1 ]
Zheng, Jianlan [1 ]
机构：
[1] Fuzhou Univ, Coll Civil Engn, Fuzhou 350108, Fujian, Peoples R China
来源：
TRENDS IN BUILDING MATERIALS RESEARCH, PTS 1 AND 2 | 2012年 / 450-451卷
关键词：
concrete; shrinkage; cracking behaviors; mineral admixtures; compounded; BLAST-FURNACE SLAG; AUTOGENOUS SHRINKAGE;
D O I：
10.4028/www.scientific.net/AMR.450-451.738
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
Influence of compounded mineral admixtures on shrinkage and early-age cracking behaviors of concrete was studied, based on the fellow factors: fly ash to blast furnace slag(denoted as BSF) ratio, fly ash-metakaolin ratio, BSF-silica fume ratio. Research shows that the Pozzolanic admixtures compounded with cementitious admixtures have complementary and synergistic effect for hydration progress of concrete, which can enhance the volume stability and cracking behaviors of concrete. However, the pozzolanic admixture compounded with other pozzolanic admixture, two pozzolanic admixtures will grab Ca(OH)(2) resource. And then if the dosage of mineral admixture is higher, the compounding will result to decrease the volume stability and cracking behaviors of concrete.
引用
收藏
页码：738 / 742
页数：5
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