Corrosion inhibitors for steel reinforcement in concrete: A review

Abdulrahman, A. S.; Ismail, Mohammad; Hussain, M. Sakhawat

doi:10.5897/sre11.1051

Cited by 60 publications

(16 citation statements)

References 66 publications

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“…Specifically, N-N-diethylaminoethanol is absorbed onto the steel surface forming organic films which protect both the anodic and cathodic sections of the rebar [17]. Besides, the transportation of surface applying amino alcohols inhibitor into concrete depends on the concrete quality, the porosity and the humidity [18,19].…”

Section: Methodsmentioning

confidence: 99%

Efficiency of Amino Alcohols as Corrosion Inhibitors in Reinforced Concrete

Vyrides¹,

Rakanta²,

Zafeiropoulou³

et al. 2013

OJCE

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The objective of this paper is to investigate the behaviour of amino alcohol corrosion inhibitors when they are used in reinforced cement mortars either as admixtures in the cement paste or as coating applications on the surface of the rebars. The reinforced cement mortars were exposed to both partial and full immersion in 3.5 wt% NaCl solution. Electrochemical measurements such as half-cell potential and linear polarization technique, as well as weight loss of the embedded rebars were performed in order to obtain information on the corrosion behaviour of the reinforcing steel in cement mortar. Results demonstrate that the amino alcohol corrosion inhibitors offer protection against rebar corrosion in cement mortars.

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Section: Methodsmentioning

confidence: 99%

Efficiency of Amino Alcohols as Corrosion Inhibitors in Reinforced Concrete

Vyrides¹,

Rakanta²,

Zafeiropoulou³

et al. 2013

OJCE

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“…Steel provides tensile strength to the set, while concrete, as a high alkalinity material and in the role of a physical barrier, protects the steel from corrosion. The alkalinity of the concrete, which, according to Abdulrahman et al [2], with pH values of about 12 to 14, provides the conditions for the formation of a passive film protecting the steel reinforcement from corrosion [3].…”

Section: Introductionmentioning

confidence: 99%

“…In order to provide additional protection and increase the life span of reinforced concrete structures, several products identified as corrosion inhibitors have been used in recent years [2]. Due the advantages that they offer, corrosion inhibitors have been receiving more attention in recent years.…”

Section: Introductionmentioning

confidence: 99%

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Corrosion Inhibitors for Reinforced Concrete

Rivetti¹,

Neto²,

Júnior³

et al. 2018

Corrosion Inhibitors, Principles and Recent Applications

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Reinforced concrete has been widely used in the last century, however, due to aggressive agents such as carbonic gas and chloride ions, it suffers premature deterioration. The concrete is a physical barrier that protects steel from corrosion, and the alkalinity of concrete leads to the formation of a passive layer around the reinforcement, which increases protection against corrosive processes. However, concrete is a porous material and has cracks that allow the entrance of aggressive agents, destabilizing the passive layer and corroding steel. The corrosion is the major cause of deterioration of concrete structures and several methods of protection and repair have been developed to increase the durability of such structures. Corrosion inhibitors, chemical substances that reduce the corrosion rate, have been widely used, both for prevention and correction. Inhibitors are classified according to their method of application, their mechanism of protection and chemical composition. In this chapter, through a literature review the main inhibitors used in reinforced concrete structures and their acting mechanisms are presented, as well as their efficiency and some side effects on concrete. It is very important to know the different types of inhibitors for correct use, thus increasing the life span of reinforced concrete structures.

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“…One of the possible examples is cathodic protection or cathodic prevention, but cathodic prevention is designed to protect steel in concrete even before the onset of chloride-induced corrosion [8]. Other options are thermal acceleration diffusion, removal of chlorides under pressure [9], re-alkalization and electrochemical extraction [10,11]. The difference between cathodic prevention and cathodic protection rests in the used current density and steel protection method.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical injection of cathionic corrosion inhibitors

Němeček¹,

Kouřil²,

Šulc³

et al. 2017

Sixth International Conference on Advances in Civil, Structural and Environmental Engineering - ACSEE 2017

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Abstract-Electrochemical chloride extraction from a reinforced concrete structure may be accompanied with an electrochemical injection of healing agents if such agents are positively charged and are able to migrate towards the activated reinforcement. Positive charge carrying nanoparticles or cathionic corrosion inhibitors might be the proper choice. Organic substances with a positive charge and their salts are mostly such inhibitors. The essential conditions for successful application of such corrosion inhibitors are their sufficient corrosion inhibition efficiency that was studied and evaluated elsewhere and their stability of positive charge in alkaline concrete environment and their migration ability through concrete pore system.

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Corrosion inhibitors for steel reinforcement in concrete: A review

Cited by 60 publications

References 66 publications

Efficiency of Amino Alcohols as Corrosion Inhibitors in Reinforced Concrete

Efficiency of Amino Alcohols as Corrosion Inhibitors in Reinforced Concrete

Corrosion Inhibitors for Reinforced Concrete

Electrochemical injection of cathionic corrosion inhibitors

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