Experimental research on the hydration heat temperature field of hollow concrete piers

被引：0
|
作者：
Peng, Jun [1 ]
Tang, Chunping [2 ]
Zhang, Liangliang [3 ]
Saeed, Ayad Thabit [4 ]
机构：
[1] Chongqing Vocational Institute of Engineering, Chongqing, China
[2] Chongqing Technology and Business Institute, Chongqing, China
[3] College of Civil Engineering, Chongqing University, Chongqing, China
[4] T.Y.Lin International Engineering Consulting Co., Ltd, Chongqing, China
来源：
Open Construction and Building Technology Journal | 2014年 / 8卷 / 01期
关键词：
Measuring points were observed continuously to reveal the hydration heat temperature distribution of hollow concrete bridge pier. The results showed that as the thickness of the pier increased; the central temperature of the pier increased significantly due to hydration and the heat was difficult to be dissipated. The hydration temperature accounted for up to 70% of the maximum temperature rise during 20 h and reached the maximum temperature at 24 h after pouring the concrete. There was a jump value between the central temperature and surface temperature in a short period after removing the framework. The jumping was the most dangerous moment for the cracking of pier surfaces. Therefore; the formwork removal time has to be determined prudently and corresponding measures have to be conducted to reduce the possibility of pier surface cracking. © Peng et al; Licensee Bentham Open;
D O I：
10.2174/1874836801408010482
中图分类号：
学科分类号：
摘要：
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页码：482 / 487
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