한국농공학회논문집 (Journal of The Korean Society of Agricultural Engineers)

  • 제56권1호
  • /
  • Pages.21-30
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  • 2014
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  • 1738-3692(pISSN)
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  • 2093-7709(eISSN)
한국농공학회 (The Korean Society of Agricultural Engineers)
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Bottom Ash의 전기적 특성과 일축압축강도

The Electrical Properties and Unconfined Compression Strength of Bottom Ash

  • 김태완 (서울대학교 조경.지역시스템공학부 대학원) ;
  • 손영환 (서울대학교 조경.지역시스템공학부 대학원) ;
  • 박재성 (서울대학교 조경.지역시스템공학부 대학원) ;
  • 노수각 (서울대학교 조경.지역시스템공학부 대학원) ;
  • 봉태호 (서울대학교 조경.지역시스템공학부 대학원)
  • 투고 : 2013.10.22
  • 심사 : 2013.12.16
  • 발행 : 2014.01.31
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초록

The objective of this study is to find the electrical properties of Bottom ash from thermoelectric power plants in Korea. By using Parallel Plate Method, the electrical resistivity and dielectric constant were measured at the frequency from 20 Hz to 10 MHz. Also, unconfined strength test, XRF and sieve analysis were performed for finding the relationship between strength, physiochemical properties and electrical properties. In the result, the change of electrical resistivity and dielectric constant of bottom ash against frequency was similar to that of general soil. The proportion of fine grain in bottom ash had the positive correlation with dielectric constant and negative correlation with electrical resistivity. Chloride and sulfur trioxide were proportional to dielectric constant and the more bottom ash had chloride content, the lower electrical resistivity appeared in bottom ash. Unconfined strength of bottom ashes had a range from 200 kPa to 780 kPa and strength was inverse proportional to electrical resistivity.

키워드

참고문헌

  1. Carrier, M., and K. Soga, 1997. A four terminal measurement system for the investigation of the dielectric properties of clay at low frequencies. Geoenvironmental Engineering 3-10.
  2. Choi, W. S., Y. H. Son, J. S. Park, S. K. Noh, and T. H. Bong, 2013. Analysis of strength characteristic for bottom ash mixtures as mixing ratio and curing methods. Journal of the Korean Society of Agricultural Engineers 55(3): 129-140. (in Korean) https://doi.org/10.5389/KSAE.2013.55.3.129
  3. Drnevich V. P., C. E. Zambrano, S. C. Jung, and J. P. Clarke, 2008. Electrical conductivity of soils and soil properties. Geocongress 2008: Characterization, Monitoring, and Modeling of Geosystems 316-323.
  4. Ke, T. C., 1990. The physical durability and electrical resistivity of indiana bottom ash, 90-94. FHWA/IN/ JHRP-90/06. West Lafayette, Indiana: Indiana Department of Transportation and Purdue University
  5. Kibria, G., 2011. Determination of geotechnical properties of clayey soil from resistivity imaging (RI). Ms. Diss., The University of Texas at Arlington
  6. Kim B. J., and M. Prezzi, 2008. Compaction characteristics and corrosivity of Indiana class-F fly and bottom ash mixtures. Construction and Building Materials 22: 694-702. https://doi.org/10.1016/j.conbuildmat.2006.09.007
  7. Kuk, K. K., H. Y Kim, and B. S. Chun, 2010. A study on the engineering characteristics of power plant coal ash. Korean Geo-Environmental Society 11(5): 25-34. (in Korean)
  8. Oh, M. H., K. H. Lee, and J. B. Park, 2004. Effects of water content and pore water contamination on electrical resistivity of unsaturated sand. Korean Society of Civil Engineers 24(1): 27-34. (in Korean)
  9. Oh, M. H., S. Y. Sun, Y. S. Kim, and J. B. Park, 2003. Electric conduction and dielectric characteristics of unsaturated sand due to water content and measuring Frequency. KSCE Conference & Civil Expo 2003 3994- 3999. (in Korean)
  10. Oh, T. 2009. Origin of decreasing the dielectric constant and the effect on ionic polarization. Journal of the Korean Vacuum Society 18(6): 453-458. (in Korean) https://doi.org/10.5757/JKVS.2009.18.6.453
  11. Park, J. S., W. S. Choi, T. W. Kim, and Y. H. Son, 2012. Evaluation of environmental stability and geochemical properties of coal combustion products. The 2012 KASE Annual Conference 18-19 September 2012.
  12. Park, M. K., 2005. Laboratory study on the electrical resistivity characteristics with contents of clay minerals. Korean Society of Earth Exploration Geophysicists 8(3): 218-223. (in Korean)
  13. Park, S. G., 2004. Physical property factors controlling the electrical resistivity of subsurface. Korean Society of Earth Exploration Geophysicists 7(2): 130-135. (in Korean)
  14. Rinaldi, V. A., and G. A. Cuestas, 2002. Ohmic conductivity of a compacted silty clay. J. Geotech. Geoenviron. Eng 128: 824-835. https://doi.org/10.1061/(ASCE)1090-0241(2002)128:10(824)
  15. Smith, S. S., and K. Arulanandan, 1981. Relationship of electrical dispersion to soil properties. Journal of the Geotechnical Engineering Division 107(5): 591-604.
  16. Son, Y. H., 2006. Practical measurement and classification for weathered soil on weathering degree, breakage index, and contamination. Ph.D. Diss., Seoul National University (in Korean)
  17. Son, Y. H., M. H. Oh, and S. H. Lee, 2009. Influence of diesel fuel contamination on the electrical properties of unsaturated soil at a low frequency range of 100 Hz-10 MHz. Environment Geology 58: 1341-1348. https://doi.org/10.1007/s00254-008-1637-x
  18. Son, Y. H., T. H. Bong, and P. W. Chang, 2008. Electrical characteristics against frequency and concentration of contaminated soils by mercury and arsenic. Journal of the Korean Society of Agricultural Engineers 50(6): 15-24. (in Korean) https://doi.org/10.5389/KSAE.2008.50.6.015