Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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A Case Study for Influence of Form-oil on Surface Condition of Steam-cured Concrete

증기양생 콘크리트 표면상태에 대한 박리제의 영향 사례연구

  • Han, Sang Hoon (Department of Civil Engineering, Chungbuk National University) ;
  • Yoon, Ju Yong (Department of Civil Engineering, Chungbuk National University) ;
  • Hong, Ki Nam (Department of Civil Engineering, Chungbuk National University) ;
  • Choi, Jae Wan (Department of Civil Engineering, Chungbuk National University) ;
  • Lim, June Woo (Department of Civil Engineering, Chungbuk National University)
  • Received : 2012.10.29
  • Accepted : 2013.02.06
  • Published : 2013.02.28
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Abstract

The purpose of this study is to evaluate the influence of form-oil on steam-cured concrete surface condition. Based, viscosity(high, medium, low) and flash point($26^{\circ}C$, $70^{\circ}C$) of form oil were considered as test variables. The digital image process method was applied for the extraction of air-void area from concrete surface. Test result showed that oil-based form oil reduced air-void by approximately 46% compared to water-based form oil, and the higher the viscosity was, the smaller air-void rate was. In addition, it was conformed that flash point of form oil had a considerable influence on the surface condition of steam-cured concrete.

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References

  1. S.J. Kim, "Study on Strength Characteristics of High-Strength Mass Concrete for Precast Application", J. of the Architectural Institute of Korea, Vol. 24, No. 8, pp. 163-170, 2008.
  2. C.K. Jeon, K.S. Lee, S.K. Oh, C.G. Han, "Influence of the Form Materials and Form Oils on the Degree of Surface-Glossing of Exposed Concrete", J. of the Architectural Institute of Korea, Vol. 19, No. 2, pp. 421-426, 1999.
  3. S.J. Park, "A Study on the Surface Air-Void Reduction of High Performance Concrete ", J. of the Korea Institute of Building Construction, Vol. 9, No. 1, pp. 49-54, 2009. https://doi.org/10.5345/JKIC.2009.9.1.049
  4. C.G. Han, "Effect of Surface Coating Material of the Aluminum Form Affecting Surface Quality of the Concrete", J. of the Architectural Institute of Korea, Vol. 26, No. 6, pp. 37-44, 2010.
  5. J.W. Choi, "Support Vector Machine Classification of Hyperspectral Image using Spectral Similarity Kernel", J. of The Korean Society for Geo-Spatial Information System, Vol. 14, No. 4, pp. 71-77, 2006.
  6. W.D. Kim, K.S. Park, Practical Photogrammetry, Goomibook, pp. 181-183, 2009.
  7. Richard O. Duda, Peter E. Hart, David G. Stork, Pattern Classification, Wiley-Interscience, pp. 259-263, 2006.

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