초음파법을 이용한 콘크리트 역타시공 이음부위의 비파괴검사

Non-destructive Inspection of Top Down Construction Joints of Column in SRC Structure using Ultrasonic Method

The joint treatment of concrete is one of the technical problems in top down construction method. Joints created with the top down construction result in serious weakness from the aspects of both structural and water-barrier function. Ultrasonic method was used for the inspection of top down construction joints of column in SRC structure in this study. As a result it has been verified that the semi-direct measurement method is more effective than the other methods for detecting the voids of construction joints.