PC steel corrosion inhibition structure of prestressed concrete structure

摘要

PROBLEM TO BE SOLVED: To provide the PC steel corrosion suppression structure of a pre-stressed concrete structure capable of suitably suppressing the corrosion of PC steel.SOLUTION: Provided is a pre-stressed concrete structure, comprising: a through hole 7 passing through a sheath 3 from the surface 2a of a concrete structure 2 to reach the vicinity of a PC steel 4; an anode material 8 inserted into the through hole 7; and an anode side filling part 9 obtained by filling a filler 5 between the through hole 7 and the anode material 8, in which the PC steel 4 and the anode material 8 are connected, and, by utilizing a potential difference between the PC steel 4 and the anode material 8, electric current is fed to the PC steel 4.SELECTED DRAWING: Figure 2