한국재료학회지 (Korean Journal of Materials Research)

  • 제23권12호
  • /
  • Pages.687-694
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  • 2013
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  • 1225-0562(pISSN)
  • /
  • 2287-7258(eISSN)
한국재료학회 (Materials Research Society of Korea)
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CSA를 사용한 플라이애시 콘크리트의 초기강도 개선을 위한 실험연구

Experiment Study on the Improvement of the Early-Age Strength of Fly Ash Concrete Using CSA

  • Park, Ji-Sun (Department of Building Research, Korea Institute of Construction Technology) ;
  • Jeon, Chan-Soo (Department of Building Research, Korea Institute of Construction Technology)
  • 투고 : 2013.11.08
  • 심사 : 2013.11.18
  • 발행 : 2013.12.27
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초록

This study was performed with an aim to improve the early-age strength of concrete containing fly ash, which is known to increase the long-age strength of concrete, reduce drying shrinkage, and enhance water tightness. The composition was partially substituted with calcium sulfoaluminate (CSA), from which ettringite is actively produced, in the early stages of hydration to verify its effect on improving the early-age strength and to determine the optimal mixing ratio. For this purpose, up to 30 % of the cement weight was substituted with fly ash, and the amount of CSA substitution was 8% of the fly ash weight. The mixtures were then fabricated into concrete specimens for compressive strength measurement and analysis of the correlation between the hydration products and the compressive strength.

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참고문헌

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