Testing Mechanical Splices for Steel Reinforcing Bars ASTM A1034

Testing Mechanical Splices for Steel Reinforcing Bars ASTM A1034

ASTM A1034 test method describes the process of testing any mechanical splice for coated or uncoated steel reinforcing bars that aids in performance observance and strength measurements. The final results of the test method must be in SI units or inch-pound units.


    ASTM A1034 determines the standard for measuring the performance and strength of bar slice assembly. It specifies the acceptability of mechanical splice under specific design criteria for varied concrete structural members. Performance evaluation of the mechanical splices is dependent on the similarity of the materials and methods of assembly and those used in the tests.

    Test Procedure:

    The test specimen is placed in the testing machine with sufficient capacity. Elongation measuring devices are installed, and a baseline tension test is carried out once the specimen components have gained the required strength. The specimen undergoes various tests like monotonic tension, compression, cyclic load, high cycle fatigue, slip, and differential elongation tests.

    Specimen Size : 

    The length of the test specimens shall be such that the distance between the ends of the coupler and the grips does not exceed one bar diameter.


    All the measurements are to be expressed in SI units or inch-pound units. The splice specimens shall be cold-soaked for a minimum of 24 h prior to testing for low-temperature testing.


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