The Rapid Determination of the Moisture-Retention Characteristics of Soil

    Volume 18, Issue 2 (June 1995)

    ISSN: 0149-6115

    CODEN: GTJOAD

    Page Count: 10


    Fourie, AB
    Associate professor and professor, University of Witwatersrand,

    Papageorgiou, G
    Steffen, Robertson, and Kirsten, SRK House, Illovo, Johannesburg

    Blight, GE
    Associate professor and professor, University of Witwatersrand,

    Abstract

    A modified technique is described for determining the water-retention curve of a soil. The new technique allows the definition of a moisture-retention curve (typically six to seven data points) much more rapidly than is possible with conventional techniques such as the pressure plate apparatus. The full curve may be determined in four to six days compared with two to three weeks previously. Results are presented for three different soils. For one soil (a fly ash), comparative testing using the new technique and a conventional method shows good agreement. An added advantage of the new technique is that overall volume change of the soil specimen may be measured and not merely inferred from measurements of moisture outflow. Greater accuracy in determining the moisture-retention curve was thus obtained.


    Paper ID: GTJ10328J

    DOI: 10.1520/GTJ10328J

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    Author
    Title The Rapid Determination of the Moisture-Retention Characteristics of Soil
    Symposium , 0000-00-00
    Committee D18