| 摘要 |
PROBLEM TO BE SOLVED: To simplify and speed-up the loading/unloading work at the time of exchanging and mounting a sacrificial member by connecting a sacrificial member of a metallic material having an ionization tendency higher than that of an object for corrosion prevention to the object for corrosion prevention by a connecting member of a metallic material having an ionization tendency smaller than that of this and executing conductive connection. SOLUTION: A bolt made of iron as the object material 4 for corrosion prevention buried into the ground and a sacrificial member 2 composed of a metallic material of zinc, magnesium or the like and having an ionization tendency higher than that of this are conductively connected by a connecting member 3 of a copper wire or the like having an ionization tendency at least small than that of the sacrificial member 2 by a connecting member 3, and the electrode 1 for corrosion prevention can be buried in at an upper level. As this connecting member 3, the one having flexibility is used, and, preferably, one end is inserted and stuck to the sacrificial member 2, the other end is fixed to a bolt head 6 with a bolt of a small size of diameter, and it is coated with a coating material made of a nonconductive material. In this way, the sacrificial member 2 is preferentially electrotycall corroded to prevent the electrolytic corrosion of the bolt, and its loading and exchanging are facilitated. |
