Influence of chemical composition and particle size of cement on autogenous shrinkage

被引：0
|
作者：
Miyazawa, S [1 ]
Kuroi, T [1 ]
Tazawa, E [1 ]
机构：
[1] Ashikaga Inst Technol, Dept Civil Engn, Ashikaga, Tochigi 3268558, Japan
来源：
2001 SECOND INTERNATIONAL CONFERENCE ON ENGINEERING MATERIALS, VOL II | 2001年
关键词：
autogenous shrinkage; cement paste; chemical composition; particle size; gypsum;
D O I：
暂无
中图分类号：
TB33 [复合材料];
学科分类号：
摘要：
ne effects of mineral composition, grain size and gypsum content of cement on autogenous shrinkage of cement paste were experimentally investigated. Samples with different particle size were prepared by sieving four types of cement with different mineral compositions. The ranges of particle size were 6 mu m and under, from 6 mu m to 26 mu m, and 26 mu m and over. In the case of ordinary Portland cement and sample of 26 mu m and over, the gypsum content was varied. It was proved that autogenous shrinkage at early ages was very large for the samples of 6 mu m and under. Autogenous shrinkage decreased with increase in particle size of cement and with increase in gypsum content. Autogenous shrinkage decreased with decrease in the ratio of C(3)A content to (C(3)A+C(4)AF) content.
引用
收藏
页码：79 / 88
页数：10
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