| 摘要 |
PROBLEM TO BE SOLVED: To provide a covering corrosion protection method for a steel structure in which, even if a corrosion protection object is irregularly deformed, a corrosion protection layer can be uniformly covered to the surface of the corrosion protection object without producing a gap between the corrosion protection layer and the surface of the corrosion protection object, a satisfactory covering corrosion protection state can be made, further, damage is not caused even if external force is applied and the good covering corrosion protection state can be maintained over a long period, further, a coating operation and large machines at the spot are not required, and operability at the spot is excellent, and a covering corrosion protection structure.SOLUTION: In the covering corrosion protection method for a steel structure in which the surface of the body 4 to be corrosion-protected is disposed with a corrosion protection layer 3, and a protective cover 1 is fitted to the surface of the corrosion protection layer 3, the corrosion protection layer 3 is made of a corrosion protection layer made of a two layer structure composed of an internal layer 31 and a surface layer 32 each consisting of pasty urethane resins in which the contents of water-absorbing polymers are different. The internal layer 31 is made of the corrosion protection layer including the water-absorbing polymer more than the surface layer 32, and the corrosion protection layer 3 with the two layer structure is integrated with the protective cover 1, and is fitted to the body 4 to be corrosion-protected. |
