ABSTRACT

ABSTRACT: Virtually all highway bridges contain concrete elements. For concrete bridges, reinforcing steel provides strength and ductility through its bond and anchorage to the concrete, and the effectiveness of that can be reduced by corrosion of the embedded steel bar. Local bond aspect between corroded steel bars and concrete were experimentally investigated based on pullout and cyclic loading tests. Evaluation of the bond mechanism is especially useful when the main reinforcing bars are corroded. However, the aspects regarding different levels of corrosion on bond need further study. The purpose of this study is therefore to evaluate the effect of steel corrosion at different levels on bond behavior under both pullout and cyclic loading.