Study on Crack Prevention for Concrete Rapid Construction
Pier concrete is vulnerable to cracking when using concrete rapid construction after long off period. In order to solve this problem, crack mechanism and effects of several temperature control measures of thin-walled structure concrete is analyzed. Through analyzing the temperature and stress time-space variation using 3D finite element method, it can be found that stress is more sensitive to controlling concrete placing temperature than other measures. It also shows that under the condition of taking other proper temperature control measures, low placing temperature can not be spared.
Yungang Li, Pengcheng Wang, Liqun Ai, Xiaoming Sang and Jinglong Bu
M. Z. Liu et al., "Study on Crack Prevention for Concrete Rapid Construction", Advanced Materials Research, Vols. 291-294, pp. 1149-1153, 2011