A Novel Bearing Swivel Joint and a Universal Joint for Concrete Pull-Off Testing Using a Material Testing Machine

    Volume 42, Issue 1 (January 2014)

    ISSN: 0090-3973

    CODEN: JTEOAD

    Published Online: 16 October 2013

    Page Count: 9


    Giancaspro, James
    Associate Professor, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Miami, Coral Gables, FL

    Millman, Lauren
    Graduate Student, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Miami, Coral Gables, FL

    Goolabsingh, Ryan
    Graduate Student, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Miami, Coral Gables, FL

    MacDonald, Kimberley
    Undergraduate Student, Dept. of Civil, Architectural, and Environmental Engineering, Univ. of Miami, Coral Gables, FL

    Yang, Q. D.
    Associate Professor, Dept. of Mechanical and Aerospace Engineering, Univ. of Miami, Coral Gables, FL

    (Received 12 September 2012; accepted 5 June 2013)

    Abstract

    The overall goal of this short study was to integrate two pull-off coupling devices for concrete: a bearing swivel joint and a universal joint, into an existing material testing machine. Their performance was evaluated in terms of efficiency using setup duration and compared to that of a commercially available portable testing device. Fifty-three pull-off tests were conducted on concrete prisms in accordance with ASTM C1583-04. Our results indicate that the portable tester was most efficient (6 min/test), followed by the universal joint (16 min/test), and then the bearing swivel joint (22 min/test). An online movie, as referenced in the text, demonstrates the modified test procedure, and recommendations for improvements to the test method are briefly discussed. Future testing will evaluate the variability among test results from the three devices.


    Paper ID: JTE20120280

    DOI: 10.1520/JTE20120280

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    Title A Novel Bearing Swivel Joint and a Universal Joint for Concrete Pull-Off Testing Using a Material Testing Machine
    Symposium , 0000-00-00
    Committee C09