International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 03 | Mar 2024
p-ISSN: 2395-0072
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A COMPREHENSIVE REVIEW OF THE EFFECTIVENESS OF CORROSION INHIBITOR Mrs. Shubhra Dhamande1, Khan Ammar haider2, Khan Siraj Ahmed3, Shah Nikhat Jahan4 , Department of civil engineering, New Horizon institute of technology and management, Maharashtra, India 2B.E student, Department of Civil Engineering, New Horizon Institute of Technology and Management, Maharashtra, India 3B.E student, Department of Civil Engineering, New Horizon Institute of Technology and Management, Maharashtra, India 4B.E student, Department of Civil Engineering, New Horizon Institute of Technology and Management, Maharashtra, India ---------------------------------------------------------------------***--------------------------------------------------------------------1Asst. Professor
Abstract - Reinforced Concrete Cement Structures (RCC)
those metals getting eroded over a while and to protect those structures and to increase its durability the Corrosion Inhibitors are used. Corrosion inhibitors play a prominent role in protecting metal surfaces from degradation in corrosive environments. When introduced to a corrosive setting, these substances reduce the rate of corrosion by creating a protective layer on the metal surface.
are structures where concrete is reinforced with steel bars to increase its strength and durability, therefore corrosion inhibitors are used to promote the cost-effective utilization of steel as a structural material. Migrating Corrosion inhibitors play a critical role in reducing corrosion rates by forming a protective barrier on the surface of rebar to prevent steel corrosion. The experimental investigation of corrosion Inhibitors in RCC Structures carried out by Migrating Corrosion Inhibitors includes method techniques such as Electrochemical Impedance spectroscopy (EIS), Potentiodynamic, polarization, weight loss measurements, and scanning electron microscopy utilized to access the inhibitory efficiency and mechanism of corrosion inhibitors. This process is carried out to study various forms of corrosion processes, such as the chemical and physical properties of corrosion inhibitors, evaluating their inhibiting capabilities, and investigating their impact on the longevity of RCC structures. Different types of corrosion inhibitors are analyzed for their effectiveness in preventing corrosion in RCC. The results showcase the promising inhibitory effects of corrosion inhibitors, with some demonstrating high efficiency in reducing corrosion rates and improving the durability of RCC structures. It is also concluded that for the durability of the RCC, it is recommended to optimize the compositions and application methods of inhibitors for practical implementation in construction and maintenance practices
There are several types of Corrosion Inhibitors but the Inhibitors which gives better results are the Migrating Corrosion Inhibitors. Migrating corrosion inhibitors are chemicals that move from a metal surface to potential corrosion sites, forming a protective layer to halt the corrosion process. These inhibitors are utilized in diverse applications to safeguard metal structures from degradation. The Migrating inhibitors either block corrosive agents' access to the metal or adjust the chemical environment to make it less conducive to corrosion. Corrosion inhibitors function through various mechanisms, such as passivation, adsorption, and chemical reactions. These processes delay the corrosion effects and prevent the deterioration of metal surfaces over time. The traditional corrosive inhibitors may stay in the place where it is applied but the migrating corrosion inhibitors have the properties of traveling further and spreading to the metal to which it is applied and protect it from getting corroded over some time. The experimental evaluation of chemical corrosion inhibitors in Reinforced Concrete (RCC) structures is a critical aspect of modern construction practices. As concrete deterioration due to embedded reinforcement corrosion poses significant challenges globally, developing effective corrosion inhibitors is crucial.
Key Words: Corrosion inhibitors, Reinforced Concrete, Corrosion protection, Experimental study, RCC structures
1. INTRODUCTION Corrosion Inhibitors are Chemicals that are applied to the RCC Structures due to their anti-corrosive property and the same is used as a resistance for the metals in the RCC Structures to avoid them from getting damaged. Since there are several chemical reactions in the environment and whenever there are structures made with metals such as steel which are used in the RCC, due to there are high risks of
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Surface coatings, concrete mix integration, and electrochemical migration are some methods employed to facilitate inhibitor movement within the concrete matrix. Through experimental investigations and the exploration of various techniques, researchers strive to develop robust
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