Ultrasonic guided waves for steel bar concrete interface testing

摘要: The feasibility of detecting and quantifying delamination at the interface between steel bar concrete using ultrasonic guided waves is investigated in this paper. These can propagate a long distance along reinforcing or beam as are sensitive to bonding condition concrete. traditional methods good for large voids but not very efficient since they use reflection, transmission scattering longitudinal by internal discontinuities. In study, special solid couplers (or beam) transducers have been used launch flexural cylindrical lamb waves) concrete). This investigation shows that wave testing technique an effective tool health monitoring reinforced structures.