Impact and Sonic echo used for a variety of applications. They both can measure the thickness of an unknown slab, beam, pier or any other concrete or masonry structure. Impact echo is used to determine the location and extent of defects such as; cracks, delamination, voids, honeycombing and debonding in plain, reinforced and pre or post-tensioned concrete structures. Sonic echo is mainly used to measure large concrete structures, such as the thickness of piles or piers.
