Corrosion detecting apparatus and outdoor structure

摘要

A corrosion detecting apparatus includes a first conductive part 11, an insulating film part 12 made of a material same as that applied to an outdoor structure, which covers the first conductive part 11, and linear second conductive parts 13 provided in plural with a predetermined gap therebetween on top of the film part 12, to detect a corrosion current generated due to degradation of the film part. The corrosion current is detected by a water film generated by a crack formed due to degradation of the film part 12.