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Title |
Control of Thermal Crack in Mass Concrete Using Automated Curing System
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Authors |
하주형 ; 조윤구 ; 현태양 ; 임창근 ; 서태석 |
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DOI |
https://doi.org/10.4334/JKCI.2013.25.2.195 |
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Keywords |
수화열저감 ; 매스 콘크리트 ; mock-up 테스트 ; 양생자동화 시스템 heat of hydration reducing ; mass concrete ; mock-up test ; automated curing system |
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Abstract |
New thermal crack control system for mass concrete was developed to increase quality and to save construction period and cost. The principle of this system is that the curing water having proper temperature is supplied automatically to the surface of mass concrete member to keep the temperature difference between center and surface of concrete less than generally recommended temperature difference (20℃). Mock-up test was conducted to investigate the validity of newly developed curing system. As a result, no crack was founded in the specimen using automated curing system developed in this study, while many cracks occurred in another specimen without automated curing system. It was also confirmed that the strength and the durability of the concrete cured by automated curing system were improved.
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