Combination Of The Non-Destructive Methods For Evaluating The Quality Of Concrete Used In Structures In Reinforced Concrete

The study is aboutthe use and comparison of three non-destructive methods (dynamic auscultation, sclerometric\ud auscultation and auscultation by RADAR (Radio Detecting and Ranging) to monitor and assess the quality of\ud concrete. Samples of reinforced concrete panels, dimensions 200x100x30 cm of concrete dosed at 350 kg/m3\ud with diverse E/C ratio were achieved, conserved in the laboratory and subjected to various non-destructive test.\ud The synthesis of the results obtained by auscultation RADAR shows a decrease in the propagation speed of the\ud electromagnetic wave with an increase of the E/C ratio and a decrease in resistance of concrete values measured\ud and confirmed by other non-destructive techniques (sclerometric and dynamic auscultations).\ud This shows that more the dielectric constant is high, morethe concrete resistance is reduced, and conversely the\ud opposite