Properties of Metakaolin Concrete containing Various Superplasticizers

혼화제 종류에 따른 메타카올린 콘크리트의 특성

  • 안태호 (경기화학공업(주) 연구개발센터) ;
  • 김용태 (경기화학공업(주) 연구개발센터) ;
  • 강범구 ((주)이지콘 콘크리트 연구) ;
  • 김병기 (경기화학공업(주) 연구개발센터 혼화재료팀 및 (주) 이지콘 콘크리트 연구실)
  • Published : 2002.05.01

Abstract

The properties of mortar and concrete including metakaolin as a partial cement replacement were investigated in terms of fluidity and compressive strength. The results show that mortar and concrete in which 10 % of cement is replaced with metakaolin exhibit much higher compressive strength after 3 days of hydration than ordinary Portland cement, indicating that metakaolin can be used in the production of high strength concrete replacing silica fume. The type of superplasticizer largely affected on the fluidity and compressive strength of mortar and concrete including metakaolin. It was concluded that when metakaolin is used for the purpose of manufacturing high strength concrete, it is desirable to use PNS based blends rather than PNS, PMS and polycarboxylate based superplasticizer.

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