Modified Free Swell Index for Clays

    Volume 10, Issue 2 (June 1987)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Page Count: 6


    Sivapullaiah, PV
    Scientific officer, research scholar, and professor, Indian Institute of Science, Bangalore,

    Sitharam, TG
    Scientific officer, research scholar, and professor, Indian Institute of Science, Bangalore,

    Subba Rao, KS
    Scientific officer, research scholar, and professor, Indian Institute of Science, Bangalore,

    Abstract

    Free swell tests are commonly used for identifying expansive clays and to predict the swelling potential. The method as proposed by Holtz and Gibbs suffers from inaccuracies in volume measurement of dry powder in air. In this paper, a nondimensional modified free swell index is proposed, which removes the uncertainties present in the Holtz and Gibbs method. The modified free swell index is shown to bear unique correlations with liquid limit (volume basis) and percent swell of oedometer specimens compacted to proctor optimum conditions.


    Paper ID: GTJ10936J

    DOI: 10.1520/GTJ10936J

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    Author
    Title Modified Free Swell Index for Clays
    Symposium , 0000-00-00
    Committee D18