Abstract

The paper presents an experimental study on the effect of cracks on the continuity of the electric field during desiccation of clays by electro-osmotic flow. The material is a kaolinite initially prepared as a saturated slurry with a water content equal to 1.5 times its liquid limit (wL = 40%).
The results show that a steady state (constant flow) is established as soon as the electric field is applied and this regime remains as long as the material remains continuous. Due to the appearance of the first cracks in the material due to desiccation on the cathode side, this continuity is no longer assured and the electric current vanishes and with it, the electro-osmotic flow. The coefficient of electro-osmotic permeability is of about Ke ~ 1.2 to 4.3 10-9 m2 / V.s.

Information

Item Type:	Conference
Divisions:	» Laboratory of Management, Maintenance and Rehabilitation Of Facilities and Urban Infrastructure » Faculty of Science and Technology
ePrint ID:	872
Date Deposited:	2017-09-13
Further Information:	Google Scholar
URI:	https://www.univ-soukahras.dz/en/publication/article/872

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