POST-TENSIONING APPARATUS FOR REINFORCING A CONCRETE STRUCTURE USING UNBONDED STEEL WIRE WITH INHERENT CORROSION RESISTANCE AND A BORESCOPE CAMERA, AND METHOD FOR THE MAINTENANCE AND REPAIR OF A CONCRETE STRUCTURE USING SAME

摘要

According to the present invention, the convenience of inspecting and maintaining and repairing concrete structures, in particular nuclear reactor containment buildings during the operation thereof, can be significantly improved through the use of an unbonded steel wire, clad with a stiff covering such as epoxy, and an industrial borescope camera.