Concrete NDT and destructive testing

  • Concrete NDT and destructive testing

    Posted by william on 27/11/2021 at 2:54 pm

    What would be the most common testing (both NDT and destructive testing)methods for pre-cast concrete products. Some methods I can see are the slump test, compression test and hardness tests. What other testing methods are common for this application? Thanks in advance

    jaden replied 5 months, 2 weeks ago 2 Members · 1 Reply
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  • Destructive Testing

    jaden

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    28/11/2021 at 12:36 pm
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    the usage of destructive testing methods on pre-cast concrete products depends
    1. on the standards applicable to the product in the respective country and
    2. on the techniques the manufacturer has found useful for quality control. There is a wide range of possibilies.

    Concerning non-destructive methods, I am not aware of any standards. Ultrasonic through transmission has been used for quality control for a long time. Changes of the pulse velocity indicate variations in the manufacturing process, cracks, or other problems.

    During the last few years non-destructive testing methods have been developed further. As an example, our institute conducts R&D on ultrasonic methods. It is now possible to measure pulse velocity without surface contact employing air-coupled transducers, or to image concrete elements from one side using electronic and mechanical scanning and 2D or 3D SAFT reconstruction.