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Volume 35 Issue 2
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TAO Yan-li, ZHOU Jian, GONG Xiao-nan, CHEN Zhuo, LI Yi-wen. Comparative experiment on influence of ferrum and cuprum electrodes on electroosmotic effects[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(2): 388-394.
Citation: TAO Yan-li, ZHOU Jian, GONG Xiao-nan, CHEN Zhuo, LI Yi-wen. Comparative experiment on influence of ferrum and cuprum electrodes on electroosmotic effects[J]. Chinese Journal of Geotechnical Engineering, 2013, 35(2): 388-394.
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Comparative experiment on influence of ferrum and cuprum electrodes on electroosmotic effects

  • 1. Research Center of Coastal and urban Geotechnical Engineering, Zhejiang University, Hangzhou 310058, China; 2. Tianjin Key Laboratory of Soft Soil Characteristics and Engineering Environment, Tianjin 300384, China

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  • Received Date: April 14, 2012
  • Published Date: March 06, 2013
    Graphical Abstract
    • Abstract
  • Laboratory tests are conducted to investigate the influence of ferrum and cuprum electrodes on electroosmotic effects, and they are analyzed and compared through drainage, voltage loss at the electrodes and water content monitoring. The results demonstrate a better performance of ferrum electrode than that of cuprum electrode. In the case of cuprum anode, a rapid decrease in current is observed for 4~6 hours after the test commences, together with a big voltage loss at the anode. Furthermore, the influence of different combinations of cathode and anode materials on electroosmosis is also explored. It is revealed that the anode materials occupy a leading role in electroosmosis while the cathode materials display little effect. A reasonable explanation to the laboratory findings in terms of electrochemistry is also given. The phenomenon of electrochemical passivation is first discovered in elecroosmosis. The electrochemical passivation will reduce the efficiency of elecroosmosis substantially and should be avoided in practical engineering.
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    • References (20)
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