Reinforced concrete structure: Non destructive in situ strength assessment of concrete

A series of destructive and non-destructive tests were carried out on an important historic building in Reggio Calabria: the National Museum of “Magna Grecia”. This paper outlines the structure which was tested and the principal results of the testing campaign. The results show the variation of the mechanical properties of the in-situ concrete, the reliability of the combined methods, the need to calibrate the strength obtained by non-destructive methods with the strength of cylindrical specimens (cores) which were extracted from the same structural elements in the proximity of the non-destructive test.