Bentonite electrical conductivity: a model based on series–parallel transport

Ana T. Lima, J. P. Gustav Loch, Pieter J. Kleingeld

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


Bentonite has significant applications nowadays, among them as landfill liners, in concrete industry as a repairing material, and as drilling mud in oil well construction. The application of an electric field to such perimeters is under wide discussion, and subject of many studies. However, to understand the behaviour of such an expansive and plastic material under the influence of an electric field, the perception of its electrical properties is essential. This work serves to compare existing data of such electrical behaviour with new laboratorial results. Electrical conductivity is a pertinent parameter since it indicates how much a material is prone to conduct electricity. In the current study, total conductivity of a compacted porous medium was established to be dependent upon density of the bentonite plug. Therefore, surface conductivity was addressed and a series-parallel transport model used to quantify/predict the total conductivity of the system. © The Author(s) 2010.
Original languageEnglish (US)
Pages (from-to)1061-1068
Number of pages8
JournalJournal of Applied Electrochemistry
Issue number6
StatePublished - Jan 30 2010
Externally publishedYes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): KUK-C1-017-12
Acknowledgements: The authors would like to thank the Chemistry Department, Utrecht University, in particular to Bonny Kuipers for his help in the determination of bentonite zeta potential. The research work described in this paper was funded by the Utrecht University award for KAUST Center-in-Development SOWACOR, Award No. KUK-C1-017-12.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.


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