Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Breakage Index and Changes in Permeability of Bottom Ash for Use as Fill Material

성토재로의 활용을 위한 Bottom Ash의 파쇄지수 산정 및 투수계수 변화

  • Kim, Donggeun (Department of Rural Systems Engineering, Seoul National University) ;
  • Son, Younghwan (Department of Rural Systems Engineering and Research Institute for Agriculture & Life Sciences, Seoul National University) ;
  • Park, Jaesung (Department of Rural Systems Engineering, Seoul National University) ;
  • Bong, Taeho (Research Institute for Agriculture & Life Sciences, Seoul National University)
  • Received : 2015.10.21
  • Accepted : 2015.11.05
  • Published : 2015.11.30
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Abstract

The objective of the this study is to find the breakage index and changes in permeability of Bottom ash from thermoelectric power plants in Korea. Bottom ash was crushed by compaction according to compaction energy from 0 to $1661.4\;kN/m^2$. The particle size distribution was estimated by sieve analysis. The various breakage indexes were used for analyzing the change in particle size distribution and effect of compaction energy. In the result, breakage indexes were increased as compaction energy and initial upper 4.75 mm diameter ratio, but values and tendencies of breakage indexes appeared in different as calculation method of breakage indexes. The coefficient of permeability was decreased with particle breakage, but decreasing ratio of permeability was very small. Bottom ash has a higher permeability than the weathered soil and it is considered high usability as a permeable materials.

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References

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