scholarly journals Development of an electrochromic device triggered by the macrocell current in chloride-induced corrosion of steel-reinforced concrete

2017 ◽  
Vol 30 (9) ◽  
pp. e3739 ◽  
Author(s):  
Thomas Juraschek ◽  
Oliver Weichold
Keyword(s):  
Reinforced Concrete ◽  
Electrochromic Device ◽  
Steel Reinforced Concrete ◽  
Chloride Induced Corrosion ◽  
Macrocell Current ◽  
Corrosion Of Steel

Corrosion Assessment and Control Techniques for Reinforced Concrete Structures

2020 ◽  
pp. 226-259
Author(s):  
Md Daniyal ◽  
Sabih Akhtar
Keyword(s):  
Reinforced Concrete ◽  
Electrochemical Techniques ◽  
Substantial Reduction ◽  
Concrete Structures ◽  
Steel Corrosion ◽  
Reinforced Concrete Structures ◽  
Steel Reinforced Concrete ◽  
Inspection Systems ◽  
Critical Requirement ◽  
Corrosion Of Steel

The steel reinforced concrete structures perform well in various environmental conditions, but structures may undergo premature damage in aggressive environments such as marine or acidic, primarily due to steel corrosion, and substantial reduction in service life occurs. This also causes huge economical loss and create safety and environmental problems. The repair and maintenance of steel reinforced concrete structures for their safety needs effective monitoring and inspection systems for evaluating the corrosion condition of steel. Since the corrosion of steel reinforcement occurs through electrochemical reactions, electrochemical methods are suitable to study the corrosion processes. In this chapter, some commonly used electrochemical techniques have been comprehensively explained. In addition, there is a critical requirement to develop effective and long-lasting techniques to control the corrosion of steel. Hence, some of the commonly used corrosion control methods have been comprehensively described in this chapter.

Methods of accelerating chloride-induced corrosion in steel-reinforced concrete: A comparative review

2021 ◽  
Vol 289 ◽  
pp. 123165
Author(s):  
Weipeng Feng ◽  
Anel Tarakbay ◽  
Shazim Ali Memon ◽  
Waiching Tang ◽  
Hongzhi Cui
Keyword(s):  
Reinforced Concrete ◽  
Steel Reinforced Concrete ◽  
Chloride Induced Corrosion ◽  
Comparative Review

scholarly journals Corrosion of steel reinforced concrete in the tropical coastal atmosphere of Havana City, Cuba

Química Nova ◽  
2013 ◽  
Vol 36 (2) ◽  
pp. 220-229 ◽  
Author(s):  
Abel Castañeda ◽  
Juan José Howland ◽  
Francisco Corvo ◽  
Tezozomoc Pérez
Keyword(s):  
Reinforced Concrete ◽  
Steel Reinforced Concrete ◽  
Corrosion Of Steel ◽  
Havana City

scholarly journals Towards arresting reinforced concrete corrosion – a review

2018 ◽  
Vol 199 ◽  
pp. 05001
Author(s):  
Christian Christodoulou ◽  
Chris Goodier ◽  
Gareth Glass
Keyword(s):  
Reinforced Concrete ◽  
Solid Phase ◽  
Steel Corrosion ◽  
Corrosion Damage ◽  
Sacrificial Anodes ◽  
Corrosion Initiation ◽  
Chloride Induced Corrosion ◽  
Corrosion Risk ◽  
Corrosion Of Steel ◽  
Reinforced Concrete Corrosion

This work reviews developments in the understanding of chloride induced corrosion of steel in concrete from both a kinetic and thermodynamic perspective. Corrosion damage is at least in part attributed to the production of acid at sites of corrosion initiation. Solid phase inhibitors provide a reservoir of hydroxyl ions to inhibit damage. Pit re-alkalisation is identified as an important protective effect in electrochemical treatments used to arrest corrosion. A process like pit re-alkalisation is achieved more easily by impressing current from sacrificial anodes using a power supply which may then be followed by low maintenance galvanic protection to prevent local acidification. Methods for monitoring the steel corrosion rate in electrochemically treated reinforced concrete have been developed and used to assess corrosion risk. Some of these concepts have been adopted in the recent international standard on cathodic protection, ISO 12696:2016, some of the amendments of which are considered in the work presented here.

scholarly journals Kathodischer Korrosionsschutz für Stahlbetontragwerke unter Verwendung eines neuen leitfähigen Anstrichsystems / Cathodic Corrosion Protection of Steel Reinforced Concrete Structures with a New Conductive Composite Paint System

2000 ◽  
Vol 6 (6) ◽  
pp. 597-618
Author(s):  
W. Schwarz
Keyword(s):  
Reinforced Concrete ◽  
Corrosion Protection ◽  
Concrete Structures ◽  
Reinforced Concrete Structures ◽  
Conductive Composite ◽  
Steel Reinforced Concrete ◽  
High Durability ◽  
Critical Problems ◽  
And Performance ◽  
Corrosion Of Steel

Abstract Corrosion of steel in concrete is one of the critical problems in civil engineering with regard to the durability of reinforced concrete structures. Cathodic protection (CP) of the steel rebars in concrete structures evolved during the past 25 years as a reliable method to extend the lifetime of reinforced concrete structures. During the CP operation, proportional to the applied protection current, acids are generated at the anode/concrete interface. This effect limits durability and performance of various CP-systems. This contribution describes a newly developed conductive composite paint for use as anode material, characterized by high durability at high current densities and easy applicability, and its practical application for the corrosion protection of a parking deck in Oslo.

scholarly journals Mitigation of chloride induced corrosion in reinforced concrete structures and its modeling

2021 ◽  
Vol 65 (3) ◽  
pp. 79-85
Author(s):  
J. Němeček ◽  
P. Trávníček ◽  
J. Němečková ◽  
J. Kruis
Keyword(s):  
Reinforced Concrete ◽  
Corrosion Inhibitors ◽  
Concrete Structures ◽  
The Other ◽  
Reinforced Concrete Structures ◽  
Transport Mechanisms ◽  
Chloride Induced Corrosion ◽  
Corrosion Of Steel ◽  
Harmful Species ◽  
Comparison With Experimental Data

Abstract The paper is primarily focused on the description of transport of harmful species in concrete such as chlorides on one side and transport of corrosion inhibitors and nanoparticles used to diminish corrosion of steel reinforcement or seal the microstructure of concrete on the other side. The studied processes are helpful in reverting the chloride induced corrosion of the reinforcement in reinforced concrete structures. The transport mechanisms are summarized with the emphasis on their mathematical description and numerical solution. The paper shows modeling results of the processes including a comparison with experimental data on several typical examples. The efficiency of the methods is shown supported by experimental and numerical results. A good correlation of the models with experiments is achieved.

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