ESTIMATE OF MARINE SALT BEHAVIOR AROUND THE BRIDGE STRUCTURES
ABSTRACT
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. The study was carried out to investigate the Estimate of Marine Salt Behavior around the Bridge Structures. In achieving this aim, the following specific objectives were laid out to evaluate the cost analysis of bridge structure mix design, investigate the factors instigating marine salt behavior during bridge structure development and examine the marine salt behavior inhibiting the construction of bridge structures. The development of chloride penetration models is essential for the assessment of the service life of concrete structures exposed to marine environment. The experimental study where the parameters used in the penetration Fick’s 2nd law of diffusion model where calibrated to allow the prediction of long term chloride content in concrete. The results showed that the concrete cover and concrete quality requirements stated in the present codes need to be increased so that an acceptable service life can be achieved. In conclusion this study will be of immense benefit to researchers who intend to know more on this study and can also be used by non-researchers to build more on their research work.
CHAPTER ONE
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.
CHAPTER TWO
2.0 Literature Review
2.1 Introduction
The review of relevant literature is the main topic of this chapter. A literature review covers theoretical and methodological contributions to a certain issue in addition to the state of knowledge at the time of writing. It provides information about the state of the art in relation to the subject you are writing about. It examines the body of work on the chosen subject. The literature evaluation in this study comprises the …
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