1.1 Introduction
Bridge structure is structural element which is constructed by means of concrete ingredients in salty water which can easily corrosion in bridge which result is reducing strength due to corrosion of reinforcement in order to prevent and overcome the damage by increasing the concrete cover and concrete quality requirements and prevent the corrosion. In marine environment, the service life of reinforced concrete structures depends mainly on deterioration due to reinforcement corrosion. Two stages can be considered in this mechanism; the initiation period corresponding to the critical chloride penetration up to the level of reinforcement and the propagation period related to the reinforcement corrosion and its detrimental effects on the structure. Service life prediction is becoming one of the major tasks in the design of concrete structures.
As a prelude to other parts of this study, this chapter will discuss the background upon which this study was initiated, the statement of problems that led to this study, the Aim and Objectives of the study. Others are Significance of the study, Scope of work, Limitations of the Study and Definition of technical terms.
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