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    Laboratory Testing of Modular Masonry Concrete Block-Geogrid Facing Connections

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    This paper describes a laboratory apparatus and test procedure that was developed by the authors to quantify the mechanical behavior of the connection between mortarless modular concrete block units and geogrid reinforcement materials. The paper illustrates that the tests should be carried out with 1-m wide samples of geogrid reinforcement in order to account for the influence of block joints and surface geometry irregularities that occur along the length of typical geogrid-reinforced concrete block walls. This paper gives recommendations for a 20 ram/min rate of loading. The interpretation of connection strength and efficiency for modular block-geogrid reinforcement connection systems is related to conventional index strengths that are routinely reported in the literature based on the ASTM D 4595 method of test.


    geosynthetic testing, masonry concrete, geogrid modular block, geosynthetic reinforcement, connections

    Author Information:

    Bathurst, RJ
    Professor, Royal Military College of Canada, Kingston, Ontario

    Simac, MR
    Principal, Earth Improvement Technologies, Cramerton, NC

    Committee/Subcommittee: D35.01

    DOI: 10.1520/STP24311S