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

Korea Concrete Institute (한국콘크리트학회)
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The Experimental Study on the Reanalysis of Mixing Proportion for Hardened Concrete Using X-ray Fluorescence

XRF를 활용한 경화 콘크리트의 배합비 역추척에 관한 실험적 연구

  • 이준구 (농어촌진흥공사 농어촌연구원) ;
  • 박광수 (농어촌진흥공사 농어촌연구원 수석연구원) ;
  • 이응찬 (농어촌진흥공사 농어촌연구원 책임연구원) ;
  • 김한중 (서울대학교 농업개발연구소) ;
  • 김명원 (농어촌지흥공사 농어촌연구원) ;
  • 박미현 (농어촌진흥공사 농어촌연구원)
  • Published : 1999.10.01
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Abstract

Exact estimation of cement content in a hardened concrete can provide useful data to evaluate the quality and strength of the concrete and might be used to inspect the quality of precast concrete secondary products. Observation obtained in this research included : (1) the volume of coarse aggregate in the hardened concrete measured by the area comparison method has a high accuracy ; (2) the cement content in the mortar and the X-ray intensity of Ca-K$\alpha$ have a correlation factor of 0.96 ; (3) the cement content in the ready mixed concrete was estimated with high accuracy such as correlation factor of 0.99 and standard deviation of 0.64.

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