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Geotechnical and Geological Engineering

Erschienen in:

01.08.2013 | Original paper

The Effect of pH on Electro-osmotic Flow in Argillaceous Rocks

verfasst von: Mohamed Younes Ahmed, Said Taibi, Hanène Souli, Jean-Marie Fleureau

Erschienen in: Geotechnical and Geological Engineering | Ausgabe 4/2013

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Abstract

The use of electro-osmosis in geotechnical engineering has been considered since 1930. Its application has been tested in several sectors like the fight against rising damp in porous materials, the consolidation of soils as well as the remediation of the soils contaminated by oil and heavy metals, etc. The paper presents an experimental study of the electrokinetic phenomena resulting from the application of an electric field to argillaceous sandstones. The electroosmotic tests required the development of a completely new experimental device composed of a confining cell, of a system of measurement and control of the pH of the electrolyte near the electrodes, of a system of control and measurement of the voltage and current at the edges of the sample, and of a system of measurement of inlet (anodic) and outlet (cathodic) flows. Various boundary conditions are considered with and without control of pH. In addition, a micro structural modelling of the electrokinetic phenomena makes it possible to quantify the electro osmotic conductivity with a good agreement with experiments.

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Titel: The Effect of pH on Electro-osmotic Flow in Argillaceous Rocks
verfasst von: Mohamed Younes Ahmed
Said Taibi
Hanène Souli
Jean-Marie Fleureau
Publikationsdatum: 01.08.2013
Verlag: Springer Netherlands
Erschienen in: Geotechnical and Geological Engineering / Ausgabe 4/2013
Print ISSN: 0960-3182
Elektronische ISSN: 1573-1529
DOI: https://doi.org/10.1007/s10706-013-9656-0

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