Volume 36, Issue 5 (September 2013)

    Determination of Soil Stabilizer Content Using X-Ray Fluorescence

    (Received 10 October 2012; accepted 4 June 2013)

    Published Online: 2013

    CODEN: GTJOAD

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    Abstract

    Currently, there are no simple methods routinely used to quantify the amount of chemical additive mixed into the soil during subgrade stabilization. Such a method was developed and validated for commonly used chemical additives including lime, cement kiln dust, and Class C fly ash mixed with different fine-grained soil types. The method employs the well-established x-ray fluorescence (XRF) technique. X-ray fluorescence was used to detect the amount of stabilizer, in the form of calcium oxide (CaO), in several stabilized subgrade soils. This technique was validated using four soils of different mineralogy and classification stabilized with three chemical stabilizers, and successfully implemented on several roadway stabilization projects. The results show that XRF accurately measures the amount of CaO in various soils, using different stabilizers, and can be a valuable tool for not only quality control, but forensic geotechnical investigations as well.


    Author Information:

    Cerato, A. B.
    Rapp Foundation Presidential Associate Professor, School of Civil Engineering and Environmental Science, Univ. of Oklahoma, Norman, OK

    Miller, G. A.
    Rapp Foundation Presidential Professor, School of Civil Engineering and Environmental Science, Univ. of Oklahoma, Norman, OK


    Stock #: GTJ20120186

    ISSN: 0149-6115

    DOI: 10.1520/GTJ20120186

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    Author
    Title Determination of Soil Stabilizer Content Using X-Ray Fluorescence
    Symposium , 0000-00-00
    Committee D18