A proposal of prediction model for autogenous shrinkage of ultra high-strength concrete

被引：0
|
作者：
Teramoto A. [1 ]
Maruyama I. [1 ]
Tanimura M. [2 ]
Mitani Y. [2 ]
机构：
[1] Dept. of Environmental Engineering and Architecture, Nagoya Univ.
[2] Research and Development Center, Taiheiyo Cement Corporation
来源：
Journal of Structural and Construction Engineering | 2010年 / 75卷 / 654期
关键词：
Autogenous shrinkage; Prediction model; Thermal expansion coefficient; Ultra high-strength concrete;
D O I：
10.3130/aijs.75.1421
中图分类号：
学科分类号：
摘要：
In this paper, a prediction model for autogenous shrinkage of ultra high-strength concrete which include silica fume was proposed by using mixture rule and autogenous shrinkage behavior of cement paste with low water-to-binder ratio. The proposed autogenous shrinkage model consists of two parts with regard to the rate of autogenous shrinkage. Characteristic autogenous shrinkage of ultra high-strength concrete, which is rapid autogenous shrinkage up to about 1 day, is expressed by a function of water-to-binder ratio and temperature of fresh concrete. And reaction activity of silica fume in high temperature is expressed by apparent activation energy. The proposed model is evaluated by a comparison with previous data, and it has about accuracy of 30%.
引用
收藏
页码：1421 / 1430
页数：9
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