Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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The Electrical Properties and Unconfined Compression Strength of Bottom Ash

Bottom Ash의 전기적 특성과 일축압축강도

  • 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)
  • Received : 2013.10.22
  • Accepted : 2013.12.16
  • Published : 2014.01.31
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Abstract

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.

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References

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