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슬래그 활용 콘크리트의 동절기 적용 성능 평가 KCI 등재

Application Properties of Slag Concrete in Winter Season

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한국구조물진단유지관리공학회 논문집 (Journal of The Korea Institute for Structural Maintenance and Inspection)
한국구조물진단유지관리공학회 (The Korea Institute For Structural Maintenance and Inspection)
초록

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°C 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. In this study, to overcome the limitation of the initial strength decrease due to the use of slag, the slag substitution rate was changed to 30% under the low temperature curing temperature condition and the slag used concrete composition with the same or higher strength performance as OPC(Ordinary Portland Cement).

목차
Abstract
 1. 서 론
 2. 실험 계획 및 방법
  2.1 실험 계획 및 콘크리트 배합
  2.2 사용재료
 3. 실험내용
  3.1 슬래그 치환율별 강도발현 성능(실험 I)
  3.2 알칼리 활성 자극제 종류별 강도발현 성능(실험 II)
  3.3 콘크리트 물성에 따른 강도발현 성능(실험 III)
  3.4 치환율 30%에서 최적 강도발현 성능(실험 IV)
  3.5 최종 슬래그 치환 배합 성능 평가(실험 V)
 4. 결 론
 감사의 글
 References
저자
  • 유조형(포스코건설 엔지니어링본부 과장) | Jo-Hyeong Yoo
  • 김우재(포스코건설 엔지니어링본부 부장) | Woo-Jae Kim Corresponding author