Volume 35, Issue 1 (January 2012)

    Temperature Effects on Suction Measurement Using the Filter Paper Technique

    (Received 15 November 2010; accepted 25 July 2011)

    Published Online: 2011

    CODEN: GTJOAD

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    Abstract

    This paper presents the results of an experimental study of thermal effects on filter paper calibration curves used to obtain the soil suction. When the temperature is significantly different from ambient values, it is essential to consider the influence of temperature on the filter paper calibration curves to obtain a reliable soil suction measurement. The calibration curve of Whatman No. 42 filter paper was determined at 10°C, 25°C, and 50°C using the vapor equilibrium technique with sodium chloride solutions at different concentrations and the axis translation technique. The experimental results showed a major influence of temperature on the filter paper calibration curves. Using the obtained experimental data a calibration equation was proposed, taking into account the effect of temperature. The obtained calibration curves were then used to determine the soil water retention curve of kaolin clay, which showed lower retention capacity at higher temperatures.


    Author Information:

    Haghighi, Ali
    School of the Built Environment, Heriot-Watt Univ.,

    Medero, Gabriela M.
    School of the Built Environment, Heriot-Watt Univ.,

    Marinho, Fernando A. M.
    Escola Politécnica da Universidade de São Paulo,

    Mercier, Baptiste
    School of the Built Environment, Heriot-Watt Univ.,

    Woodward, Peter K.
    School of the Built Environment, Heriot-Watt Univ.,


    Stock #: GTJ103575

    ISSN: 0149-6115

    DOI: 10.1520/GTJ103575

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    Author
    Title Temperature Effects on Suction Measurement Using the Filter Paper Technique
    Symposium , 0000-00-00
    Committee D18