This single device can perform following four measurements: (1) dynamic response of the structures as done by conventional accelerometers (2) homogeneity of concrete in terms of the velocity of waves travelling inside the concrete material as determined by the conventional ultrasonic velocity test set-up (3) concrete strength in terms of the peak voltage generated by the piezo based sensors as determined by the conventional Rebound Hammer Test set-up (4) depth of the defects (in form of cracks etc.) as determined by the Impact Echo test conventionally.
Central Road Research Institute (CRRI)
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