Ultrasonic Testing of Voids inside Mortar for Structural Integrity Evaluation

구조물 건전도 평가를 위한 모르타르 내 공극 초음파 탐상

Structural integrity of reinforced concrete structures including nuclear power plants needs to be evaluated on a regular basis. Deterioration inside the concrete structures can be represented by voids. In this study, the varied volume fraction of voids inside mortar specimens was studied as a parameter using ultrasonic testing equipments. Both direct and indirect measurement methods were employed. The results show that there is a clear distinction between the specimens with different void volume fractions.