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J. Ocean Eng. Technol. > Volume 25(3); 2011 > Article
J. Ocean Eng. Technol. 2011;25(3):40-46.    
DOI: https://doi.org/10.5574/KSOE.2011.25.3.040   

An Experimental Study on the Sulfate Resistance of Fly Ash Antiwashout Underwater Concrete
Kwon Joong-Hyen,Kim Bong-Ik
Institute of Marine Industry Division of Ocean civil Engineering Gyeongsang National University,Institute of Marine Industry Division of Ocean civil Engineering Gyeongsang National University
플라이애시를 혼입한 수중불분리성 콘크리트의 내 황산염에 관한 실험적 연구
경상대학교 해양과학대학 해양토목공학과 해양산업연구소,경상대학교 해양과학대학 해양토목공학과 해양산업연구소
Copyright © 2011 The Korean Society of Ocean Engineers     Open access / Under a Creative Commons License
Key Words: Antiwashout underwater concrete, Fly ash, Sulfate Resistance
핵심용어: 수중불분리성 콘크리트, 플라이애시, 내 황산염
This paper describes the effects of fly ash replacement on the sulfate resistance of antiwashout underwater concrete which was replaced cement by fly ash from 0% to 50%. and the experimental works were performed on sulfate acceleration test of 5%$Na_2SO_4$ solution to find out the variance of length and weight of specimens. The experimental result shows that the length of specimens of antiwashout underwater concrete age at 180day was highly increased compare with normal concrete by acceleration test. but the mixture which was replaced 50% of fly ash shows reduction of the expansion, weight various, compare with normal concrete specimen. accordingly by using fly ash as admixture in antiwashout underwater concrete in sea environment, it will makes more durable for the attacks of sulfate by sea water.


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