A Study on the Hydration Heat of Antiwashout Underwater Concrete Using Fly Ash

J. Ocean Eng. Technol. 2000;14(4):30-34.

플라이애쉬를 사용한 수중불분리성 콘크리트의 수화열에 관한 연구

권중현

경상대학교 해양과학대학 해양산업연구소

Keywords: Antiwashout underwater concrete, fly ash, Hydration heat

핵심용어: 수중분리성 콘크리트, 플라이애쉬, 수화열

Abstract

The concretes cast in the sea water would be likely to be rich mix and mass concrete. Therefore it is important to check out the hydration heat of concrete and to reduce it to prevent the concrete from processing the temperature crack. Recently the antiwashout agent is used on underwater concrete for preventing from the segregation of concrete in the water. The experimental studies were done for the combined cement replaced by fly ash 30%unit weight of binder to study on the characteristics of hydration heat of antiwashout underwater concrete, and its characteristic was discussed by comparing on cast in sea water with anther one in air. The present paper showed that the hydration heat concrete replaced by 30%of fly ash was more significantly reduced than the normal concrete. The hydration heat of antiwashout underwater concrete was highter than that of normal concrete, but it was reduced lower than the normal concrete by adding fly ash.