Reliability of non-destructive testing methods by detecting the presence of reinforcement in existing concrete structures

I. Selek, S.N.M. Wijte, M. Swinkels

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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Abstract

Information about the reinforcement in existing concrete structures is of great importance in order to determine the moment capacity. If the rebar drawings are available, then knowledge about the rebar could be derived from the drawings. However, the rebar drawings are often not available for existing old structures or the information on the drawings could be doubted. Further investigation about the applied amount of reinforcement can be done by the use of destructive or non-destructive testing methods. Destructive investigation is often not preferred due to the required amount of labour and due to the influence on the esthetical quality of the concrete. Therefore, non-destructive methods are more preferable. Non-destructive testing (NDT) methods makes it possible to obtain information about the concrete cover depth, the number of existing reinforcement bars and the diameter of the reinforcement bars in an existing concrete structure. The ground penetrating radar and the cover meter are often used in order to obtain information about the reinforcement. Herewith the following question arise: What is the reliability of the information that has be achieved with this NDT techniques? Concrete cover depth measurements with NDT devices have a major accuracy. However, the rebar diameter measurements with NDT devices have a large spread in the measurement results and therefore a less accuracy.
Original languageEnglish
Title of host publicationHigh Tech Concrete: where technology and engineering meet
Subtitle of host publicationProceedings of the 2017 fib Symposium, held in Maastricht, The Netherlands, June 12-14, 2017
EditorsD.A. Hordijk, M. Luković
PublisherSpringer
Pages1858-1866
ISBN (Print)978-3-319-59471-2
DOIs
Publication statusPublished - 12 Jun 2017
Event2017 fib Symposium, June 12–14, 2017, Maastricht, The Netherlands - Maastricht, Netherlands
Duration: 12 Jun 201714 Jun 2017
https://fibsymposium2017.com/

Conference

Conference2017 fib Symposium, June 12–14, 2017, Maastricht, The Netherlands
CountryNetherlands
CityMaastricht
Period12/06/1714/06/17
Internet address

Fingerprint

Nondestructive examination
Concrete construction
Reinforcement
Concretes
Radar
Personnel

Cite this

Selek, I., Wijte, S. N. M., & Swinkels, M. (2017). Reliability of non-destructive testing methods by detecting the presence of reinforcement in existing concrete structures. In D. A. Hordijk, & M. Luković (Eds.), High Tech Concrete: where technology and engineering meet: Proceedings of the 2017 fib Symposium, held in Maastricht, The Netherlands, June 12-14, 2017 (pp. 1858-1866). Springer. https://doi.org/10.1007/978-3-319-59471-2_213
Selek, I. ; Wijte, S.N.M. ; Swinkels, M. / Reliability of non-destructive testing methods by detecting the presence of reinforcement in existing concrete structures. High Tech Concrete: where technology and engineering meet: Proceedings of the 2017 fib Symposium, held in Maastricht, The Netherlands, June 12-14, 2017. editor / D.A. Hordijk ; M. Luković. Springer, 2017. pp. 1858-1866
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Selek, I, Wijte, SNM & Swinkels, M 2017, Reliability of non-destructive testing methods by detecting the presence of reinforcement in existing concrete structures. in DA Hordijk & M Luković (eds), High Tech Concrete: where technology and engineering meet: Proceedings of the 2017 fib Symposium, held in Maastricht, The Netherlands, June 12-14, 2017. Springer, pp. 1858-1866, 2017 fib Symposium, June 12–14, 2017, Maastricht, The Netherlands, Maastricht, Netherlands, 12/06/17. https://doi.org/10.1007/978-3-319-59471-2_213

Reliability of non-destructive testing methods by detecting the presence of reinforcement in existing concrete structures. / Selek, I.; Wijte, S.N.M.; Swinkels, M.

High Tech Concrete: where technology and engineering meet: Proceedings of the 2017 fib Symposium, held in Maastricht, The Netherlands, June 12-14, 2017. ed. / D.A. Hordijk; M. Luković. Springer, 2017. p. 1858-1866.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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AB - Information about the reinforcement in existing concrete structures is of great importance in order to determine the moment capacity. If the rebar drawings are available, then knowledge about the rebar could be derived from the drawings. However, the rebar drawings are often not available for existing old structures or the information on the drawings could be doubted. Further investigation about the applied amount of reinforcement can be done by the use of destructive or non-destructive testing methods. Destructive investigation is often not preferred due to the required amount of labour and due to the influence on the esthetical quality of the concrete. Therefore, non-destructive methods are more preferable. Non-destructive testing (NDT) methods makes it possible to obtain information about the concrete cover depth, the number of existing reinforcement bars and the diameter of the reinforcement bars in an existing concrete structure. The ground penetrating radar and the cover meter are often used in order to obtain information about the reinforcement. Herewith the following question arise: What is the reliability of the information that has be achieved with this NDT techniques? Concrete cover depth measurements with NDT devices have a major accuracy. However, the rebar diameter measurements with NDT devices have a large spread in the measurement results and therefore a less accuracy.

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Selek I, Wijte SNM, Swinkels M. Reliability of non-destructive testing methods by detecting the presence of reinforcement in existing concrete structures. In Hordijk DA, Luković M, editors, High Tech Concrete: where technology and engineering meet: Proceedings of the 2017 fib Symposium, held in Maastricht, The Netherlands, June 12-14, 2017. Springer. 2017. p. 1858-1866 https://doi.org/10.1007/978-3-319-59471-2_213