Volume 36, Issue 4 (July 2013)

    A Protein-Retention Method for Specific Surface Area Determination in Swelling Clays

    (Received 19 October 2012; accepted 5 March 2013)

    Published Online: 2013

    CODEN: GTJOAD

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    Abstract

    Standard methods have been developed to measure the specific surface area (SSA) of clays, including methylene blue (MB) methods, but have limitations. This study focused on the development of a new method, the protein-retention (PR) method, for the SSA measurement of soil and its comparison with standard tests and published values. MB stain, MB titration, and PR tests were performed on 20 samples prepared by mixing montmorillonite, kaolinite, and quartz in different proportions. The PR method for the SSA determination of the soil samples showed high correlations with the two standard methods and with published data. These correlations show that the PR method is comparable to current standard methods. Additionally, two statistical analyses showed that the PR method yielded the same results as the other methods, and even more statistically similar results to the published values than either of the standard methods. The PR method offers advantages over current methods because of the uniform shape of the hemoglobin molecule and the presence of positively and negatively charged amino acids. This study has shown that the PR method is a new, inexpensive, and reliable method for the SSA measurement of soil.


    Author Information:

    Paykov, Oksana
    Research Assistant, Dept. of Civil and Environmental Engineering, California State Univ., Fullerton, CA

    Hawley, Harmonie
    Assistant Professor, Dept. of Civil and Environmental Engineering, California State Univ., Fullerton, CA


    Stock #: GTJ20120197

    ISSN: 0149-6115

    DOI: 10.1520/GTJ20120197

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    Author
    Title A Protein-Retention Method for Specific Surface Area Determination in Swelling Clays
    Symposium , 0000-00-00
    Committee D18