What is the rebound hammer test? Object, Principle, Apparatus, Procedure, Influence and Interpretation of results
Importance and Rebound Hammer Test : It is often necessary to test concrete structures after the concrete has hardened to determine whether the structure is suitable for its proposed structure. Such testing should ideally be done without damaging the structure, which is called a Non-destructive Test on concrete. Rebound Hammer is one of the methods of testing for the strength of concrete . Rebound hammer is used for checking the compressive strength of concrete (as per IS-13311(Part-2)/92 ) at a certain age of concrete. Rebound Hammer Test The object of the test : i) assessing the likely compressive strength of concrete with the help of suitable correlations between rebound index and compressive strength, ii) assessing the uniformity of concrete, iii) assessing the quality of the concrete in relation to standard requirements, and iv) assessing the quality of one element of concrete in relation to another. NOTE - The rebound hammer method can be used with greater confidence...