Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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An Experimental Study on the Sulfate Resistance of Fly Ash Antiwashout Underwater Concrete

플라이애시를 혼입한 수중불분리성 콘크리트의 내 황산염에 관한 실험적 연구

  • Kwon, Joong-Hyen (Institute of Marine Industry, Division of Ocean civil Engineering, Gyeongsang National University) ;
  • Kim, Bong-Ik (Institute of Marine Industry, Division of Ocean civil Engineering, Gyeongsang National University)
  • 권중현 (경상대학교 해양과학대학 해양토목공학과 해양산업연구소) ;
  • 김봉익 (경상대학교 해양과학대학 해양토목공학과 해양산업연구소)
  • Received : 2010.07.16
  • Accepted : 2011.06.20
  • Published : 2011.06.30
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Abstract

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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References

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