Proceedings of the Korean Institute of Building Construction Conference (한국건축시공학회:학술대회논문집)

The Korean Institute of Building Construction (한국건축시공학회)
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Development and Application of Concrete using Ground Granulated Blast Slag in Winter Season

동절기 슬래그 혼입 콘크리트의 실용화기술개발

  • 유조형 (포스코건설 R&D Center 기술연구소) ;
  • 김우재 (포스코건설 R&D Center 기술연구소) ;
  • 홍석범 (포스코건설 R&D Center 기술연구소)
  • Published : 2014.05.29
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Abstract

Concrete made with ground granulated blast-furnace slag(GGBS) has many advantage, including improved durability, workability and economic benefits. GGBS concrete is that its strength development is considerably slower under standard 20℃ curing conditions than that of portland cement concrete, although the ultimate strength is higher for same water-binder ratio. GGBS is not therefore used in application where high early age strength is required. However, hydration of GGBS is much more sensitive to temperatures, the strength development of GGBS concrete is significantly enhanced.

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