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Title |
An Experimental Study on Properties of Concrete Using Latent Heat Binder
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Authors |
김용로 ; 김도수 ; 길배수 ; 김욱종 ; 이도범 |
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Keywords |
잠열물질; 잠열성 결합재; 콘크리트 수화열; 온도균열; 매스콘크리트; latent heat material; latent heat binder; hydration heat; thermal crack; mass concrete |
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Abstract |
It is necessary to develop a new technology for effectively reducing hydration heat and controlling thermal cracking caused increasing construction of large size massive concrete structures such as mat foundation of high-rise building, grandiose bridge, and LNG tank. Therefor, to develop a new technology for reducing hydration heat of large size massive concrete in this study, after developing the latent heat binder for controling hydration heat of concrete by application of latent heat material, it was investigated basic properties and durability such as slump, air content and compressive strength, shrinkage properties, permeability, freezing and thawing resistance, corrosion, and hydration heat generation properties of concrete using latent heat binder. As a test result, it was confirmed that latent heat binder was not affected adversely the basic property and durability of concrete, and was advanced on the reduction of hydration heat and control of thermal crack. It is expected to be applied as the excellent technology on the management of hydration heat and thermal crack in large size mass concrete structures.
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