Volume 37, Issue 4 (July 2014)

    Experimental Evaluation of the Pore-Access Size Distribution of Sands

    (Received 1 August 2013; accepted 13 March 2014)

    Published Online: 2014

    CODEN: GTJOAD

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    Abstract

    A simple experimental method is presented for evaluation of the pore-access size distribution of sands and, more generally, of cohesionless granular materials. The water-retention curve of a sand specimen is evaluated using a technique similar to the hanging column method (ASTM 2008) [ASTM D6836: Standard Test Methods for Determination of the Soil Water Chararcteristic Curve for Desorption Using a Hanging Column, Pressure Extractor, Chilled Mirror Hygrometer, and/or Centrifuge, Annual Book of ASTM Standards, ASTM International, West Conshohocken, PA, 2008] by application of a step-by-step variation of suction and measure of the corresponding changes in water content. The pore-access size distribution is then evaluated from the water-retention curve using the Young-Laplace law, which links the suction to the pore-access radius. The efficiency of this experimental method is demonstrated by studying the influence of various parameters such as the shape and the size of the grains, the spreading of the grain-size distribution, and also the relative density of the specimen on the pore-size distribution.


    Author Information:

    Feia, Sadok
    Université Paris-Est, Laboratoire Navier, CERMES, Ecole des Ponts ParisTech,

    Laboratoire Navier/CERMES, Ecole des Ponts ParisTech, 6-8 avenue Blaise Pascal, Cité Descartes,

    Ghabezloo, Siavash
    Université Paris-Est, Laboratoire Navier, CERMES, Ecole des Ponts ParisTech,

    Bruchon, Jean-François
    Université Paris-Est, Laboratoire Navier, CERMES, Ecole des Ponts ParisTech,

    Sulem, Jean
    Université Paris-Est, Laboratoire Navier, CERMES, Ecole des Ponts ParisTech,

    Canou, Jean
    Université Paris-Est, Laboratoire Navier, CERMES, Ecole des Ponts ParisTech,

    Dupla, Jean-Claude
    Université Paris-Est, Laboratoire Navier, CERMES, Ecole des Ponts ParisTech,


    Stock #: GTJ20130126

    ISSN: 0149-6115

    DOI: 10.1520/GTJ20130126

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    Author
    Title Experimental Evaluation of the Pore-Access Size Distribution of Sands
    Symposium , 0000-00-00
    Committee D18