STP1437

    Geotechnical Characterization of a Clayey Soil Stabilized with Polypropylene Fiber Using Unconfined Compression and Resilient Modulus Testing Data

    Published: Jan 2003


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    Abstract

    This paper focuses on the geotechnical characterization of a clayey soil and its mixture with polypropylene fiber. The laboratory testing program was directed to: (i) analysis of the influence of fiber content and fiber length on the unconfined compression strength of a clayey soil in order to determine optimum parameters to be used in repeated-loading triaxial tests, and (ii) analysis of the influence of fiber on the resilient modulus of the clayey soil, according to the Brazilian Standard DNER-ME 131/94. The laboratory testing data support that: (i) the mechanical response of the composite is fiber content and fiber length dependent; (ii) addition of fiber to the soil improves substantially its unconfined compression strength; and (iii) addition of fiber to the soil is also responsible for substantial decrease in its MR values, and produces a composite that can be useful in road engineering practice.

    Keywords:

    resilient modulus, repeated-loading triaxial test, soil-polypropylene fiber mixtures, soil reinforcement


    Author Information:

    Iasbik, I
    Federal University of Viçosa, Viçosa, MG

    de Lima, DC
    Professor, Federal University of Viçosa, Viçosa, MG

    Carvalho, CAB
    Associate Professor, Federal University of Viçosa, Viçosa, MG

    Silva, CHC
    Associate Professor, Federal University of Viçosa, Viçosa, MG

    Minette, E
    Associate Professor, Federal University of Viçosa, Viçosa, MG

    Barbosa, PSA
    Assistant Professor, Federal University of Viçosa, Viçosa, MG


    Paper ID: STP12526S

    Committee/Subcommittee: D18.09

    DOI: 10.1520/STP12526S


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