Automatic air-cooling system for early-age crack control in concrete

Author:

Li Xiongyan1,Geng Yan1,Xue Suduo1,Li Jinguang2,Song Yanjie2,Kang Guangbo1

Affiliation:

1. College of Architecture and Civil Engineering, Beijing University of Technology, Beijing, China

2. Department of Civil Engineering, China Huanqiu Contracting and Engineering, Beijing, China

Abstract

Early-age heat-induced cracking is a potentially fatal problem for critical concrete structures such as liquefied natural gas storage tanks. This paper reports on a novel automatic air-cooling system designed to solve the problem. The system was designed following a series of air-cooling experiments in China on concrete walls during the first 72 h after casting. An air velocity of approximately 12 m/s appears to provide effective cracking control for ambient air temperatures up to 30°C, while the optimal cooling segment length was found to be approximately 14 m. The paper aims to provide a reference for the application of air cooling for any large-scale concrete structures at risk of early-age cracking.

Publisher

Thomas Telford Ltd.

Subject

Civil and Structural Engineering

Cited by 2 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Stress Development and Crack Monitoring of Massive Concrete Walls with Embedded Air-cooling Pipes;Journal of Advanced Concrete Technology;2021-09-28

2. Introduction;Proceedings of the Institution of Civil Engineers - Civil Engineering;2019-05

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