Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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Acid Corrosion Resistance and Durability of Alkali-Activated Fly Ash Cement-Concrete

알칼리활성 플라이 애쉬 시멘트-콘크리트의 산저항성 및 내구성

  • Kang, Hwa-Young (Department of Civil and Environment, Hanyeong College) ;
  • Park, Sang-Sook (Division of Civil and Environmental Engineering, Sunchon National University) ;
  • Han, Sang-Ho (Division of Civil and Environmental Engineering, Sunchon National University)
  • 강화영 (한영대학 토목환경과) ;
  • 박상숙 (순천대학교 토목.환경공학부) ;
  • 한상호 (순천대학교 토목.환경공학부)
  • Published : 2008.01.31
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Abstract

A new cementitious material has been developed, called alkali-activated fly ash cement(AAFC), which is used to produce AAFC-concrete for construction. The effect of acid attack, sodium chloride solution, carbonation, freeze-thaw cycling, and SEM, XRD analysis of the AAFC-concrete prepared using alkali-activated fly ash cement and OPC-concrete were experimentally investigated. It was found that the acid resistance of AAFC-concrete(35 MPa) prepared from alkali-activated fly ash at 85$^{\circ}C$ for 24 hrs is far better than OPC-concrete(35 MPa). Also, the AAFC-concrete(35 MPa) had a similar resistance of OPC-concrete(35 MPa) to attack, such as sodium chloride solution, carbonation and freeze-thaw cycling.

알칼리활성 플라이 애쉬 시멘트(AAFC)라 불리는 새로운 시멘트 물질을 이용하여 AAFC-콘크리트를 제조하였다. 알칼리활성 플라이 애쉬 시멘트를 사용하여 제조한 AAFC-콘크리트와 OPC-콘크리트에 대하여 산 침투, 염분, 탄산화, 동결 융해에 대한 영향과 SEM, XRD 분석을 수행하였다. 플라이 애쉬를 85$^{\circ}C$에서 24시간 동안 알칼리 활성화하여 제조한 AAFC-콘크리트(35 MPa)의 산 저항성은 OPC-콘크리트(35 MPa)보다 훨씬 뛰어난 것으로 나타났다. 또한 AAFC-콘크리트(35 MPa)는 염분용액, 탄산화 그리고 동결-융해와 같은 공격에 OPC-콘크리트(35 MPa)와 비슷한 저항성을 가지고 있는 것으로 나타났다.

Keywords

References

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