Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
권호 표지

An Experimental Study of Chloride Acceleration on the Seawater Resistance of Fly Ash Antiwashout Underwater Concrete

플라이애쉬 수중불분리성 콘크리트의 내해수성에 관한 염화물 촉진 시험

  • Kwon, Jung-Hyun (Dept. of Civil and Environmental Eng., Gyeongsang University) ;
  • Kim, Bong-Ik (Dept. of Civil and Environmental Eng., Gyeongsang University)
  • 권중현 (경상대학교 토목환경공학부(해양산업연구소)) ;
  • 김봉익 (경상대학교 토목환경공학부(해양산업연구소))
  • Published : 2005.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

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.

Keywords

References

  1. 권중현, 김봉익 (2001). 'Fly ash를 사용한 수중분리콘크리트의 응결에 관한 실험적 연구', 한국해양공학회지, 15 권, p 121
  2. 김기철, 한만철, 원종필, 최응규, 한천구 (1996). '증점제 및 플라이애쉬를 이요한 다짐불요 콘크리트의 개발에 관한 실험적 연구', 콘크리트학회 가을 학술발표논문집, pp 266-270
  3. 대한토목학회 (1991). 유동화 콘크리트 시공 지침 (안), p 31
  4. 대한토목학회 (1995). 콘크리트용 수중불분리성 혼화제 품질 규준(안), p 5
  5. 이영제 (1992). 수중 콘크리트용 혼화제를 사용한 콘크리트의실험적 연구, 건국대학교 대학원 석사학위논문, pp 1-2
  6. 채소언 (1993). 수중불분리성 혼화제를 사용한 콘크리트의 제 성질에 대한 실험적 연구, 한양대학교 대학원 석사학위 논문, pp 3-4
  7. 한국콘크리트학회 (2003). 콘크리트표준시방서,p71, p 195
  8. Center of Costal Engineering Development (1990). Manual of Antiwashout Underwater Concrete, pp 42 -471
  9. Hanhon, J. (1994). Construction of Underwater Concrete by the System of divided tube. Concrete Engineering Vol 32, No 3, P 86
  10. Laboratory of Concrete, Civil Engineering Department, The Ministry of Construction of Japan (1990). The Experimental Report of Anti washout Underwater Concrete No 1, pp 2-36
  11. JSCE (1993). Guide for Design and Construction of Antiwashout Underwater Concrete, pp 12 - 23
  12. JSCE (1994). Standard of Quality of Antiwashout Admixture for Underwater Concrete, pp 12-19
  13. Malhotra, V., Carette, G., Bilodeau, A., Sivansundaram, V. (1990). Some Aspects of Durability of High-volume ASlM Class F(Low-calcium) Fly Ash Concrete
  14. CANMET Division Report MSL 90-20, pp 3-11
  15. Malhotra, V. (1994). 'Fly Ash in Concrete', CANME, pp 135-166
  16. Monica, P., Philippe, G. and Paulo, J. (1993). 'Reliability Approach to Service Life Prediction of Concrete Exposed to Marine Environments', ACI Material Journal, November-December, pp 544-551
  17. Ravina, D. (1960). 'Effect of Prolonged Mixing on Compressive Strength of Concrete with and without Fly Ash and or Chemical admixture.' ACl Materials Journal, pp 451- 455
  18. Takeshi, O., Yasunori, M., Yoshitaka, N. and Jun, N. (1995). 'Influence of Materials on The Action of Admixtures in Antiwashout Underwater Concrete', ACl Material Journal, May-June, pp 315-320