Volume 4, Issue 2 (February 2007)

    Fundamental Frequency Testing of Segmental Retaining Wall (SRW) Specimens: Test Considerations

    (Received 31 May 2006; accepted 18 January 2007)

    Published Online: 2007

    CODEN: JAIOAD

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    Abstract

    As part of a larger investigation on freeze-thaw durability of masonry segmental retaining wall (SRW) units, specimens of various geometries were extensively evaluated for their resonant frequency prior to freeze-thaw exposure. These pretest trials were conducted to assess the applicability of the impact resonance method on these specimens, to identify factors affecting test result interpretation, and to obtain initial values for future comparison with values after freeze-thaw cycling. The importance of correctly identifying resonant frequencies corresponding to different modes of vibration of the specimen is highlighted, and methods to achieve this in the laboratory are discussed. The effects of specimen moisture content variations, temperature, and sampling parameters on resonant frequency are also presented.


    Author Information:

    Chan, Cesar
    Member Technical Staff, USG Corporation, Libertyville, IL,

    Carino, Stephen
    Laboratory Assistant, Undergraduate Laboratory Assistant, and Professor, respectively, School of Civil and Environmental Engineering, Cornell University, Ithaca, NY,

    Durham, Michael
    Laboratory Assistant, Undergraduate Laboratory Assistant, and Professor, respectively, School of Civil and Environmental Engineering, Cornell University, Ithaca, NY,

    Hover, Kenneth C.
    Laboratory Assistant, Undergraduate Laboratory Assistant, and Professor, respectively, School of Civil and Environmental Engineering, Cornell University, Ithaca, NY,


    Stock #: JAI100673

    ISSN: 1546-962X

    DOI: 10.1520/JAI100673

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    Author
    Title Fundamental Frequency Testing of Segmental Retaining Wall (SRW) Specimens: Test Considerations
    Symposium , 0000-00-00
    Committee C09