균열 주입부의 비파괴 검사에 의한 주입효과 판정에 관한 연구

Non-destructive Testing Methods to Evaluate the Effectiveness of Crack Repair Using Expoxy and Microcement

Development on non-destructive testing methods were performed to evaluate the effectiveness of crack repair for test beams induced a crack. Cracked beams are repaired with expoxy and microcement, and then they are tested by two methods, the ultrasonic pulse velocity method and the transfer function method. It is proved that the ultrasonic pulse velocity method is very valid for the evaluation of the effectiveness on expoxy repair, and the transfer function method is very applicable to evaluate the effectiveness on microcement repair.