자원리싸이클링 (Resources Recycling)

  • 제25권3호
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  • Pages.20-28
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  • 2016
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  • 2765-3439(pISSN)
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  • 2765-3447(eISSN)
한국자원리싸이클링학회 (The Korean Institute of Resources Recycling)
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산업부산물들 혼입에 의한 친환경 초고성능 콘크리트의 유동화제 사용량 감소

Reduction of Superplasticizer Dosage in Eco-friendly Ultra-high Performance Concrete by Adopting Industrial by-Products

  • 김희애 (한국철도기술연구원 신교통연구본부) ;
  • 표석훈 (한국철도기술연구원 신교통연구본부) ;
  • 김형기 (조선대학교 건축학부 (건축공학전공))
  • Kim, Heeae (New Transportation Systems Research Center, Korea Railroad Research Institute) ;
  • Pyo, Sukhoon (New Transportation Systems Research Center, Korea Railroad Research Institute) ;
  • Kim, Hyeong-Ki (School of Architecture, Chosun University)
  • 투고 : 2016.03.28
  • 심사 : 2016.06.13
  • 발행 : 2016.06.30
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초록

산업부산물을 사용한 친환경 초고성능 콘크리트(Ultra-high performance concrete, UHPC)의 시공성 확보를 위해 요구되는 초유동화제의 적정 혼입량을 검토하였다. UHPC에 적용한 산업부산물은 고로슬래그 미분말, 화력발전소 바텀애시, 급랭 슬래그였다. 일반적인 UHPC에 사용되던 기존 재료를 산업부산물로 부분 혹은 전량 치환한 배합에, 다양한 초유동화제 혼입량을 적용하였다. 부산물 사용에 의해 UHPC의 유동성이 개선되었으며, 이 때 초유동화제 혼입량을 감소시킨 경우에도 유동성 및 압축강도의 저하는 발견되지 않았다. 부산물 사용 및 초유동화제 혼입량 감소로 인해 UHPC의 재료 가격이 감소함을 확인하였다.

Assessment on adequate dosage of superplasticizer in eco-friendly ultra-high performance concrete (UHPC) containing industrial by-products was carried out from the standpoint of workability. Various types of industrial by-products, including blast-furnace slag, coal bottom ash and rapid-cooled electric arc furnace oxidizing slag, were utilized, and the effects of dosage of superplasticizer on the workability and strength of UHPC containing the by-products were evaluated. By utilizing the by-products, the workability of UHPC was improved and required dosage of superplasticizer was reduced. In addition, the material cost for UHPC with by-products was decreased due to reduced dosage of superplasticizer.

키워드

참고문헌

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