ABSTRACT
The process of steel corrosion has been discussed generally in the previous chapter, as well as how it occurs and key concepts applicable to it. This chapter will discuss different kinds of mechanical corrosion of steel in concrete structures. There are two main reasons for corrosion of steel in concrete: chloride attack and carbon dioxide penetration, which is called the carbonation process. These two processes cause corrosion of steel, but they do not influence the corrosion of steel in concrete directly. Rather, there are other reasons, such as the presence of certain chemicals inside the concrete and voids that affect the steel. Moreover, some acids, such as sulfate, will attack the concrete and cause concrete deterioration and corrosion of steel and then break the concrete alkalinity around the steel bars.
