콘크리트 모사환경에서 금속용사 방식피막을 갖는 강재의 부식거동에 관한 실험적 연구

Abstract

The metal spray method, one of the surface anti-corrosion methods to prevent the corrosion of the steel material, does little effects on the material, while it can be used on a wider surface. In this study, use the EIS(Electrochemical Impedance Spectroscopy) method to have the test pieces with their films metal-sprayed with Bare, Al, Zn or ZnAl immersed in the Ca(OH) 2 solution and thereby, measure the corrosion behaviors. As a result, it was confirmed that if the test piece was spray-formed of Zn, the Zn would be consumed due to the rapid responsiveness of Zn ATMS, ZnAl ATMS and Ca(OH) 2 to protect the steel material, and that if Al ATMS should be applied, Al would speedily form an oxidized film having similar passive state one to protect the steel material.