Proceedings of the Korea Concrete Institute Conference (한국콘크리트학회:학술대회논문집)

Korea Concrete Institute (한국콘크리트학회)
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Statistical Study of Compressive Strength of Concrete in Structures for Irrigation

수리구조물에서 콘크리트 압축강도의 통계분석

  • 이창수 (서울시립대학교 토목공학과) ;
  • 박광수 (농업기반공사 농어촌연구원) ;
  • 신수균 (농업기반공사 농어촌연구원) ;
  • 김관호 (농업기반공사 농어촌연구원) ;
  • 이준구 (농업기반공사 농어촌연구원) ;
  • 김명원 (농업기반공사 농어촌연구원)
  • Published : 2003.11.01
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Abstract

The purpose of this paper is to offer a base data of specification, so that the strength information of concrete in the structure for irrigation can be rationally determined the coefficient of variation of an existing irrigation structure and the best fit the ready-mixed concrete strength to specified strength $f_ck$. From analysis of concrete cylinders from about 30 numbers in southern Korea, it was concluded that the coefficient of variation of cylinder strength were approximately 5.9%. On the basis of the core strength test data, it was appeared that the average coefficient of variation for the existing irrigation structure can be taken as 17.8% for strength level 21MPa.

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