Journal of the Korea Concrete Institute (콘크리트학회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Optimum Mix Design of High-Performance Concrete for Bridge Deck Overlay by Statistical Method

통계적 방법에 의한 교면포장용 고성능 콘크리트의 최적배합비 도출

  • Won Jong-Pil (Dept. of Civil & Environmental System Engineering, Konkuk University) ;
  • Seo Jung-Min (Dept. of Civil & Environmental System Engineering, Konkuk University) ;
  • Lee Chang-Soo (Dept. of Civil Engineering, University of Seoul) ;
  • Park Hae-Kyun (Samsung Corporation Engineering & Construction Group, Civil Engineering Technology Team) ;
  • Lee Myeong-Sub (Samsung Corporation Engineering & Construction Group, Civil Engineering Technology Team)
  • 원종필 (건국대학교 사회환경시스템공학과) ;
  • 서정민 (건국대학교 사회환경시스템공학과) ;
  • 이창수 (서울시립대학교 토목공학과) ;
  • 박해균 (삼성물산㈜건설부문 토목사업본부) ;
  • 이명섭 (삼성물산㈜건설부문 토목사업본부)
  • Published : 2005.08.01
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Abstract

The objective of this study is to optimize the use of mineral admixtures (silica fume, fly ash, and blast furnace slag) in high-performance concrete for bridge deck overlay. For this purpose, high-performance concrete, incorporating mineral admixtures, was tested for compressive strength and permeability. The Box Behnken design was used to determine the optimum mix proportions of the mineral admixtures. The optimized mix compositions were then technically evaluated. Test results are compare with the performance specification for high performance concrete overlay on bridge deck. The optimum mix proportions were shown to possess acceptable properties. Also, it is possible to save the construction and materials costs result from a reduction In actual material cost and from the use of widely avaliable truck mixers instead of mobile mixers.

본 연구는 혼화재료(실리카퓸, 플라이애쉬, 고로슬래그)를 사용하여 교면 포장에 적용할 고성능 콘크리트의 최적배합비를 도출하기 위하여 실시되었다. 최적배합비를 도출하기 위하여 실리카퓸, 플라이애쉬, 고로슬래그의 세가지 혼화재료를 고려하여 통계학의 최적화 기법인 Box Behnken 설계 방법을 사용하였다. 압축강도와 염소이온투과저항성 시험을 실시하였으며 시험 결과를 기초로 최적의 배합비를 도출하였다. 도출된 최적배합은 기술적으로 분석하였으며 시험 결과는 교면포장을 위한 고성능 콘크리트 성능 기준과 비교하였다. 최적배합은 만족할 만한 성능을 보여주었다. 또한 최적배합으로 도출된 고성능 교면포장 콘크리트는 재료의 가격뿐만 아니라 모빌믹서를 사용하지 않고 일반 믹서를 사용하기 때문에 시공비용도 감소시킬 수 있다.

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References

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