ABSTRACT
This chapter describes a better option of designing to increase the structure life time in the case of exposed the structure to corrosion. The concrete structure reliability depends on the structure design methodology. The chapter explains a reliability of the reinforced concrete structure under the effect of corrosion attack and increasing the concrete strength. Different codes recommended different methods to predict the concrete strength for different ages. According to J. P. Broomfield, the main causes of corrosion of steel in concrete are chloride attack and carbonation. Empirically, a number of equations have been used to link carbonation rates, concrete quality, and environment. The chapter discusses the basics of corrosion, how they apply to steel in concrete, corrosion rate, and corrosion effect on spalling of concrete. The various types of corrosion rates taken into consideration cover the most cases of environment conditions.
