ABSTRACT
Corrosion is the upmost threat for the durability of reinforced concrete structures exposed in a marine environment. Structural performance and serviceability of reinforced concrete structures is affected by corrosion from several aspects, cross-sectional loss of reinforcements, disbonding between concrete and reinforcements caused by the expansion of corrosion products, and brittle performance of corroded reinforcements. Some published research (Wang et al., 2011, 2012; Higgins et al., 2012) is focused on the shear performance of corroded reinforced concrete beams damaged only by corrosion on stirrups or by partial length corrosion on tensile reinforcements. However, normally not only tensile reinforcements or stirrups are damaged in the corrosion damaged RC structural elements in-service. And all the investigations mentioned above accelerated corrosion with impressed current, which lead to different corrosion distribution comparing with natural corrosion(Yuan et al., 2007).
