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J. Ocean Eng. Technol. 2001;15(3):128-130.
An Experimental Study on Freezing and Thawing Resistance of Fly Ash Concrete
플라이애쉬 콘크리트의 동경융해저항성에 관한 연구
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(주)미산건설
Key Words: Fly ash, Freezing and thawing action, Air-entrained admixtures, Freezing and thawing resistance
핵심용어: 플라이애쉬, 동결융해작용, 공기연행제, 동결융해저항성
Abstract
It is generally known that the concrete structure subjected to severe environment is much affected by the corrosion of reinforcement, the freezing and thawing action of concrete structure. The main objective of this study is to investigate the freezing and thawing resistance of concrete including fly ash. The effect of the air content in concrete using fly ash is investigated. The experimental study is conducted for 10 mix-ratio cases of concrete of which variables are content of fly ash, concrete compressive strength and containment of air-entrained admixtures. Test results show that the freezing and thawing resistance improves as the amounts of fly ash increase, and concrete with air-entrained admixtures has good freezing and thawing resistance. The concrete with fly ash is to be included air-entrained admixture according to content of fly ash in order to increase the freezing and thawing resistance.


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