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J. Ocean Eng. Technol. 2005;19(6):29-34.    

An Experimental Study of Chloride Acceleration on the Seawater Resistance of Fly Ash Antiwashout Underwater Concrete
Kwon, Jung-Hyun;Kim, Bong-Ik;
Dept. of Civil and Environmental Eng., Gyeongsang University;Dept. of Civil and Environmental Eng., Gyeongsang University;
플라이애쉬 수중불분리성 콘크리트의 내해수성에 관한 염화물 촉진 시험
경상대학교 토목환경공학부(해양산업연구소);경상대학교 토목환경공학부(해양산업연구소);
© 2005 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Keywords: Antiwashout Underwater Concrete, Fly Ash, Chloride Acceleration Test, Seawater Resistance
핵심용어: 수중불분리성 콘크리트, 플라이애쉬, 염화물 촉진시험, 내해수성
This paper describes the effect of fly ash replacement on seawater resistance of anti-washout underwater concrete, which was replaced cement by fly ash from $0%$ to $50%$. The experimental work was performed to find out the variations of length and weight of specimens, using a chloride acceleration test in $40^{circ}$C The results shaw that the admixture using fly ash on an anti-washcout underwater concrete in the sea environment makes it more durable for the attacks of chloride by seawater. Also, the length of specimens of anti-washout underwater concrete, at age 180 days, increased substantially, compared with normal concrete; however, the mixture in which cement was replaced $50%$ of fly ash shows $93%$ reduction of the expansion, compared with the normal anti "washout underwater concrete specimen.


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