Reliability of Nondestructive Tests on Damage Assessment of Mosul Museum Building after Liberation Events

Nondestructive tests 'NDT' are increasingly becoming necessary tasks to develop accurate measurements without ‎causing ‎‎any ‎damage to ‎the tested elements‎. The outcome of the NDT is vital to determining the safety ‎and ‎‎reliability ‎composition of materials. This study aims to investigate the dependability of nondestructive tests using Schmidt Hammer and Destructive Core Tests in a fire-damaged area. More ‎than hundred ‎stations were considered in ‎the nondestructive inspection. ‎Destructive core test results were used to assess the NDT results in burned concrete elements. The results of the comparison, clearly demonstrated ‎the ability of both destructive and nondestructive ways‎ to capture the strength reductions in fired elements. The NDT test provided an optimistic and higher strength prediction (higher 35-67%) as compared to destructive tests. Greater optimism NDT results were significantly associated with elements that have been highly damaged by fire and the strength predictions efficiency were between 60-67%. The results showed deviations in the mechanical properties of predicted burned concrete strength, by both on-destructive and nondestructive ways that required strength calibration to the nondestructive test to ensure more reliable assessment. A strength degradation formula is also suggested and is under review.