ABSTRACT

The deterioration of reinforced concrete (RC) structures is due largely in part to the corrosion of the reinforcing steel. Much of the corrosion is precipitated by the presence of chlorides. Chlorides can be introduced to concrete structures in two ways. In regions prone to icy weather, chlorides are often introduced by the use of deicing salts, which are applied to concrete surfaces. In marine environments, chlorides are introduced by naturally occurring salts in both the air and water. When the chlorides penetrate the concrete, reactions take place, thereby making the reinforcing steel susceptible to corrosion (Page and Sergi 2000).