Factors Affecting the Electrical Properties of Bentonite Slurry

벤토나이트 슬러리의 전기적 특성에 대한 영향인자 분석

  • Yoo, Dong-Ju (Dept. of Civil, Urban & Geosystem Eng., Seoul National Univ.) ;
  • Oh, Myoung-Hak (Coastal Eng. Research Dept., Korea Ocean Research & Development Institute) ;
  • Kim, Yong-Sung (Dept. of Civil, Urban & Geosystem Eng., Seoul National Univ.) ;
  • Park, Jun-Boum (Dept. of Civil, Urban & Geosystem Eng., Seoul National Univ.)
  • 유동주 (서울대학교 지구환경시스템공학부) ;
  • 오명학 (한국해양연구원 연안개발연구본부) ;
  • 김용성 (서울대학교 지구환경시스템공학부) ;
  • 박준범 (서울대학교 지구환경시스템공학부)
  • Published : 2006.10.31


Factors affecting the electrical properties of bentonite slurry were identified and electric conduction mechanism in slurry was examined. Electrical conductivity of bentonite and soil-bentonite slurry linearly increases with the bentonite content. Test result indicated that the change In electrical conductivity of slurry was mainly caused by dissolved cations from bentonite particles. The relationship between electrical conductivity and bentonite content was affected by the initial electrical conductivity of slurry solution and fine content in soil-bentonite mixture. Such influences were evaluated and the calibrated relationships were suggested. Based on the suggested relationship between electrical conductivity and bentonite content, bentonite content in various bentonite and soil-bentonite slurry can be quantitatively evaluated by using electrical conductivity measurement method.


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