Effect of Different Patterns of Electrodes on Electrokinetic Dewatering of Clay using Conductive Geotextile

  • Sajna K R
  • Veena Vijayan
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Abstract

Excessive settlements could take place to structures build on clayey soils with high water content and low bearing capacity. The stabilization of these soils can be done by several methods such as, chemical stabilization, electrical stabilization, stabilization using geosynthetics, grouting, etc. The present paper use the process of dewatering using electro kinetics to strengthen soft soil using carbon rod as anode and a woven-knitted coir geotextile with mild steel as cathode. Electrically conductive geosynthetics combine electro kinetic phenomena with conventional geo synthetic functions. This work describes a study of the effectiveness of electrokinetic dewatering on clayey soil using conductive geotextile for 6 different arrangements of electrodes. A constant voltage of 30V is applied for 7 days to each of the models filled with clay at water content equal to liquid limit of soil. Test is repeated by varying the positions and number of electrodes fitted vertically to the sample in the model. From the results, optimum decrease in water content was by 32 percent, found in the set up with a tetrahedral pattern with 3 cathodes and one anode at the centre and maximum increase in unconfined compressive strength by 88.5 percent, found in the set up with tetrahedral pattern with 3 anodes and one cathode at the centre. The effectiveness of dewatering for all the experiments are evaluated based on the change in water content and unconfined compressive strength, to study the effect of arrangement of electrodes on electrokinetic dewatering using conductive geotextile. This electronic document is a "live" template and already defines the components of your paper [title, text, heads, etc.] in its style sheet.

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Sajna K R, & Veena Vijayan. (2016). Effect of Different Patterns of Electrodes on Electrokinetic Dewatering of Clay using Conductive Geotextile. International Journal of Engineering Research And, V5(03). https://doi.org/10.17577/ijertv5is031110

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