On the compressive strength development of high-performance concrete and paste—effect of silica fume

被引:0
|
作者
K. O. Kjellsen
O. H. Wallevik
M. Hallgren
机构
[1] Norcem A.S.,R&D Dept.
[2] The Icelandic Building Research Institute,Department of Structural Engineering
[3] Royal Institute of Technology,undefined
来源
Materials and Structures | 1999年 / 32卷
关键词
Compressive Strength; Silica Fume; Cement Hydration; Material Research Society; Alkali Silica Reaction;
D O I
暂无
中图分类号
学科分类号
摘要
The compressive strength development of sealed high-performance concrete and paste specimens, with and without silica fume, have been studied from 1 day and up to 4 years. The paste and concrete specimens were prepared in such a way that segregation was avoided and the silica fume became well dispersed. Under these conditions silica fume increased the strength of paste just as much as it increased the strength of concrete. It appears that the enhancing effect of silica fume on concrete strength is due to an improved strength of the paste phase as a whole, and not due to an improved bond strength between the paste phase and the aggregate particles, as has been suggested earlier. The concretes and the pastes with 10% silica fume appeared to loose strength over a period of time before the strength increased again.
引用
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页码:63 / 69
页数:6
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