Ultrasonic tomography – The latest nondestructive technique for testing concrete members – Description, test methodology, application example

This paper presents the latest nondestructive acoustic technique – ultrasonic tomography – suitable for testing concrete members. The capabilities of this technique for locating defects and determining their size in unilaterally accessible concrete members and for estimating the thickness of such members are described. An original test methodology developed for this purpose is included. The methodology was verified through laboratory tests on specimens and through on-site tests on a real concrete member. The suitability of this technique for testing concrete members and its reliability have been confirmed.