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A Review on Non-destructive Techniques for Corrosion Monitoring in Reinforced Concrete Structures
Corroded steel rebar inserted in reinforced concrete (RC) structures reduce durability and working life of structure and causing early failure, which is very expensive in terms of maintenance and inspection of structures that are deteriorating. Therefore, monitoring rebar corrosion is essential to prevent structural failures due to premature corrosion. Many researchers have discovered that the main reason of damage in steel reinforcement is corrosion. The reason responsible for corrosion in steel-reinforced structures is the surrounding environment and some physical properties. The most important end-of-service life indicator is the development of corrosion cracks. The initiation of corrosion in steel reinforcement started long before the formation of crack seen in the concrete surface area, and this initiation cannot be detected visually. So, with the help of a non-destructive test, we can determine corrosion before the formation of a crack. This paper presents an additional study of NDT for corrosion investigation. The methods discussed in this paper for corrosion assessment are acoustic emission, fiber optic method, ultrasonic pulse velocity, and open-circuit potential; summarizing its advantages, limitation, and appropriateness for use in the field. For other researchers, this will be useful in getting the basics for corrosion monitoring, different methods, and equipment. In addition, further research and development of commercial tools for the accurate determination of corrosion status in existing structures will be helpful. This paper demonstrates that an acoustic emission sensor can detect corrosion early in a structure. The AE is capable of sensing corrosion in real time, so it can act as an efficient NDT method. Compared to other NDT methods, this method has an advantage.
A Review on Non-destructive Techniques for Corrosion Monitoring in Reinforced Concrete Structures
Corroded steel rebar inserted in reinforced concrete (RC) structures reduce durability and working life of structure and causing early failure, which is very expensive in terms of maintenance and inspection of structures that are deteriorating. Therefore, monitoring rebar corrosion is essential to prevent structural failures due to premature corrosion. Many researchers have discovered that the main reason of damage in steel reinforcement is corrosion. The reason responsible for corrosion in steel-reinforced structures is the surrounding environment and some physical properties. The most important end-of-service life indicator is the development of corrosion cracks. The initiation of corrosion in steel reinforcement started long before the formation of crack seen in the concrete surface area, and this initiation cannot be detected visually. So, with the help of a non-destructive test, we can determine corrosion before the formation of a crack. This paper presents an additional study of NDT for corrosion investigation. The methods discussed in this paper for corrosion assessment are acoustic emission, fiber optic method, ultrasonic pulse velocity, and open-circuit potential; summarizing its advantages, limitation, and appropriateness for use in the field. For other researchers, this will be useful in getting the basics for corrosion monitoring, different methods, and equipment. In addition, further research and development of commercial tools for the accurate determination of corrosion status in existing structures will be helpful. This paper demonstrates that an acoustic emission sensor can detect corrosion early in a structure. The AE is capable of sensing corrosion in real time, so it can act as an efficient NDT method. Compared to other NDT methods, this method has an advantage.
A Review on Non-destructive Techniques for Corrosion Monitoring in Reinforced Concrete Structures
Lecture Notes in Civil Engineering
Hau, Kong Kian (editor) / Gupta, Ashok Kumar (editor) / Chaudhary, Sandeep (editor) / Gupta, Tanmay (editor) / Thakur, Aishwarya (author) / Saurav (author)
Recent Advances in Structural Engineering and Construction Management ; Chapter: 77 ; 951-968
2022-09-28
18 pages
Article/Chapter (Book)
Electronic Resource
English
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