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

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    Type
    Article
    Authors
    Lima, Ana T.
    Loch, J. P. Gustav
    Kleingeld, Pieter J.
    KAUST Grant Number
    KUK-C1-017-12
    Date
    2010-01-30
    Online Publication Date
    2010-01-30
    Print Publication Date
    2010-06
    Permanent link to this record
    http://hdl.handle.net/10754/597664
    
    Metadata
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    Abstract
    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.
    Citation
    Lima AT, Loch JPG, Kleingeld PJ (2010) Bentonite electrical conductivity: a model based on series–parallel transport. Journal of Applied Electrochemistry 40: 1061–1068. Available: http://dx.doi.org/10.1007/s10800-009-0060-7.
    Sponsors
    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.
    Publisher
    Springer Nature
    Journal
    Journal of Applied Electrochemistry
    DOI
    10.1007/s10800-009-0060-7
    ae974a485f413a2113503eed53cd6c53
    10.1007/s10800-009-0060-7
    Scopus Count
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