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    Coefficient of Permeability from AC Electroosmosis Experiments. II: Results

    Source: Journal of Geotechnical Engineering:;1996:;Volume ( 122 ):;issue: 005
    Author:
    R. J. Finno
    ,
    K. Chung
    ,
    J. Yin
    ,
    J. R. Feldkamp
    DOI: 10.1061/(ASCE)0733-9410(1996)122:5(355)
    Publisher: American Society of Civil Engineers
    Abstract: Alternating current (AC) electroosmosis tests, which permit rapid determination of the coefficient of permeability of saturated cohesive soils are described. The testing device was developed to minimize the adverse effects of prolonged application of direct current on observed responses. The apparatus and procedures to conduct the AC experiments are presented and results of 19 experiments are analyzed. In these tests, a weak AC is sinusoidally applied under nominally undrained boundary conditions to saturated kaolinite specimens; excess pore pressure and phase angle are measured at frequencies between 0.25 and 4 Hz. The results of the experimental program and the procedures of backcalculating the coefficient of permeability are presented. The coefficient of permeability from falling head permeability and AC electrosmosis tests on specimens of resedimented kaolinite are shown to agree within a factor of five. These data support the theoretical conclusions of the companion paper and suggest that this type of test is feasible to rapidly evaluate the coefficient of permeability of saturated cohesive soils in the laboratory.
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      Coefficient of Permeability from AC Electroosmosis Experiments. II: Results

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/77029
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    • Journal of Geotechnical Engineering

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    contributor authorR. J. Finno
    contributor authorK. Chung
    contributor authorJ. Yin
    contributor authorJ. R. Feldkamp
    date accessioned2017-05-08T22:18:28Z
    date available2017-05-08T22:18:28Z
    date copyrightMay 1996
    date issued1996
    identifier other40187643.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/77029
    description abstractAlternating current (AC) electroosmosis tests, which permit rapid determination of the coefficient of permeability of saturated cohesive soils are described. The testing device was developed to minimize the adverse effects of prolonged application of direct current on observed responses. The apparatus and procedures to conduct the AC experiments are presented and results of 19 experiments are analyzed. In these tests, a weak AC is sinusoidally applied under nominally undrained boundary conditions to saturated kaolinite specimens; excess pore pressure and phase angle are measured at frequencies between 0.25 and 4 Hz. The results of the experimental program and the procedures of backcalculating the coefficient of permeability are presented. The coefficient of permeability from falling head permeability and AC electrosmosis tests on specimens of resedimented kaolinite are shown to agree within a factor of five. These data support the theoretical conclusions of the companion paper and suggest that this type of test is feasible to rapidly evaluate the coefficient of permeability of saturated cohesive soils in the laboratory.
    publisherAmerican Society of Civil Engineers
    titleCoefficient of Permeability from AC Electroosmosis Experiments. II: Results
    typeJournal Paper
    journal volume122
    journal issue5
    journal titleJournal of Geotechnical Engineering
    identifier doi10.1061/(ASCE)0733-9410(1996)122:5(355)
    treeJournal of Geotechnical Engineering:;1996:;Volume ( 122 ):;issue: 005
    contenttypeFulltext
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