Effect of fly ash on autogenous shrinkage

被引：144
作者：
Tertnkhajornkit, P
Nawa, T
Nakai, M
Saito, T
机构：
[1] Hokkaido Univ, Grad Sch Engn, Div Struct & Geotech Engn, Kita Ku, Sapporo, Hokkaido 0608628, Japan
[2] Hokkaido Elect Power Co Inc, Civil Engn Sect, Dept Res & Dev, Ebetsu, Hokkaido 0670033, Japan
[3] Hokuden Kogyo Co Ltd, Dept Civil Engn, Chuo Ku, Sapporo, Hokkaido 0600031, Japan
来源：
CEMENT AND CONCRETE RESEARCH | 2005年 / 35卷 / 03期
关键词：
fly ash; hydration; ettringite; autogenous shrinkage;
D O I：
10.1016/j.cemconres.2004.07.010
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
The correlation between autogenous shrinkage and degree of hydration of fly ash was determined with the selective dissolution method. Then, the relationship between the degree of hydration of fly ash and autogenous shrinkage was examined. The results showed that the degree of hydration of fly ash increased as its Blaine surface area increased. The degree of hydration of fly ash increased with time, and autogenous shrinkage increased corresponding to the increase in the degree of hydration of fly ash. Moreover, it was found that the total quantity of Al2O3 in cement-fly ash samples affected autogenous shrinkage at early ages, but the long-term influence was very small. (c) 2004 Elsevier Ltd. All rights reserved.
引用
收藏
页码：473 / 482
页数：10
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