Influences of solution and mixed soil on estimating bentonite content in slurry using electrical conductivity SCIE SCOPUS

Cited 2 time in WEB OF SCIENCE Cited 2 time in Scopus
Title
Influences of solution and mixed soil on estimating bentonite content in slurry using electrical conductivity
Author(s)
Yoo, D.J.; Oh, M.; Kim, Y.S.; Park, J.
KIOST Author(s)
Oh, Myounghak(오명학)
Publication Year
2009-03
Abstract
Successful construction of soil-bentonite barrier system requires monitoring of the bentonite content during construction to ensure that the quantity of bentonite is adequate and the distribution of bentonite is uniform. In this study, factors affecting the electrical properties of bentonite slurry were identified and electric conduction mechanisms which prevail in bentonite slurry were examined. The electrical conductivity of both bentonite and soil-bentonite slurries linearly increased with bentonite content due to the dissolution of cations from bentonite particles. The linear relationship between electrical conductivity and bentonite content was affected by the solution electrical conductivity and fine content in soil-bentonite mixture. As the initial solution electrical conductivity increased, the slope of the regression lines decreased. In addition, the y-intercept was found to increase slightly with an increase in fine content. The empirical relationship between electrical conductivity and bentonite content considering the combined influence of fine content and slurry solution was derived. Based on the suggested relationships, the bentonite content in bentonite and soil-bentonite slurry can be quantitatively evaluated by using an electrical conductivity measurement method. © 2009 Elsevier B.V. All rights reserved.
ISSN
0169-1317
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4322
DOI
10.1016/j.clay.2008.12.004
Bibliographic Citation
Applied Clay Science, v.43, no.3-4, pp.408 - 414, 2009
Publisher
Elsevier BV
Keywords
Cation; Electrical conductivity; Slurry; Bentonite content
Type
Article
Language
English
Document Type
Article
Publisher
Elsevier BV
Related Researcher
Research Interests

Marine geotechnics,Geoenvironmental Engineering,offshore foundation,해양지반공학,지반환경공학,해양구조물 기초

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