A Study on the Improvement of an Early-age Quality of Blast-Furnace Slag Concrete

고로슬래그 콘크리트의 초기 품질 하락 극복을 위한 연구

  • 반성수 (유진종합개발(주) 콘크리트연구소) ;
  • 최봉주 (유진종합개발(주) 콘크리트연구소 소장) ;
  • 유득현 (유진종합개발(주) 콘크리트연구소 소장) ;
  • 전영환 (이순산업(주) 혼화제부문,) ;
  • 조현태 (이순산업(주) 혼화제부문)
  • Published : 2000.10.01

Abstract

Blast-Furnace Slag, a by-product of the iron or steel industry, has potential sa a cementitious material. The addition of a Blast-Furnace Slag generally reduces the heat of hydration and can confer significant improvements in resistance to sulfate attack and alkali-aggregate reaction, as well as increases in ultimate strength. But it also reduces early-age strength. In this study, for the purpose of improvement of early-age quality of Blast-Furnace Slag concrete, we choose blaine fineness of $6, 000~8, 000cm^2/g$ of Blast-Furnace Slag, and investigate the various properties of concrete. As a result, workability and early-age strength of Blast-Furnace Slag concrete were improved according to the increase of blaine fineness of Blast-Furnace Slag.

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