Experimental measurement and analysis of overall deformation of concrete at early-age

被引：0
|
作者：
Hou D.-W. [1 ,2 ]
Zhang J. [1 ,2 ]
机构：
[1] Key Laboratory of Structural Engineering and Vibration of China Education Ministry, Tsinghua University
[2] Department of Civil Engineering, Tsinghua University
来源：
Jianzhu Cailiao Xuebao/Journal of Building Materials | 2010年 / 13卷 / 05期
关键词：
Early-age concrete; Effective deformation; Overall deformation curve; Setting time;
D O I：
10.3969/j.issn.1007-9629.2010.05.010
中图分类号：
学科分类号：
摘要：
The complete deformation curve of concrete at early-age was measured experimentally that was called overall deformation. The overall deformation curve of concrete at early-age is characterized by plastic swelling at initial several hours after casting and then shrinking with a gradually reduced rate. The end point of swelling is defined as setting time of concrete and the shrinkage after that is the effective deformation that may induce stresses in structures. Meanwhile, the influences of starting time of measurement and environmental temperature on the measured results of overall deformation are analyzed. The results show that the measured deformation will be greatly influenced by measurement starting time and environmental temperature.
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页码：613 / 619
页数：6
相关论文
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