Corrosion propagation behavior of stainless steel reinforcing bars in concrete

Abstract

Dry and wet corrosion tests were performed to clarify the corrosion propagation behavior (corrosion area, corrosion loss, and localized corrosion depth) of stainless steel reinforcing bars (SUS304-SD, SUS410-SD) in chloride attack concrete and chloride attack & carbonation concrete. As a result, even if the chloride ion concentration of the concrete was high, the corrosion loss of SUS304-SD and SUS410-SD were significantly small compared with that of carbon steel bars and it was estimated that the influence of the rust content was small on the crack of concrete.