Volume 16, Issue 3 (September 1993)

    Some Experiments on Restrained Shrinkage of Clays Undergoing Drying

    CODEN: GTJOAD

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    Abstract

    This paper describes engineering applications which show the engineering significance of testing the phase composition of soils, including determining the level of water saturation. It further explains why, in order to accurately model in situ conditions in soil deposits, it is necessary to test the phase composition of soil under conditions of horizontal restraint and changing moisture content. The paper reviews the lineal measurement method of Sibley and Williams (1989), which was initially developed to test unrestrained clays. The method has now been adapted for use in characterizing phase relationships in horizontally restrained soil specimens undergoing drying. Results obtained using the new test have drawn attention to the fact that while soils undergoing drying are invariably restrained by naturally occurring mechanisms, the level of this restraint may vary widely. A useful index of the level of restraint applied to a slurried soil specimen undergoing drying is the moisture content at which initially 1-D (vertical) shrinkage behavior becomes isotropic.


    Author Information:

    Sibley, JW
    Lecturer in geomechanics, The University of Central Queensland, Rockhampton Mail Centre, Queensland,

    Williams, DJ
    Senior lecturer in geomechanics, The University of Queensland, Queensland,


    Stock #: GTJ10057J

    ISSN: 0149-6115

    DOI: 10.1520/GTJ10057J

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    Author
    Title Some Experiments on Restrained Shrinkage of Clays Undergoing Drying
    Symposium , 0000-00-00
    Committee D18