Non-destructive Test Methods for Corrosion Detection in Reinforced Concrete Structures
| Autor(en): |
Hornbostel Karla
(MSc, PhD, Senior Engineer, Norwegian Public Roads Administration , Abels gate 5, NO-7030 Trondheim)
Tobias Danner (MSc, PhD, Research Scientist, SINTEF Community, Department Architecture, Materials and Structures , NO-7491 Trondheim) Mette Rica Geiker (MSc, PhD, Professor, Norwegian University of Science and Technology , Department of Structural Engineering , Richard Birkelandsvei 1a, NO-7491 Trondheim) |
|---|---|
| Medium: | Fachartikel |
| Sprache(n): | Englisch |
| Veröffentlicht in: | Nordic Concrete Research, Juni 2020, n. 1, v. 62 |
| Seite(n): | 41-61 |
| DOI: | 10.2478/ncr-2019-0005 |
| Abstrakt: |
Several inspection methods can be used to assess the corrosion state of steel reinforcement in concrete. Especially for periodical field surveys and monitoring, non-destructive testing (NDT) methods are to be preferred as they do not cause any or very limited damage to the existing concrete. In this paper, the corrosion state of three reinforced concrete beams exposed to marine environment for 25 years was evaluated by measuring three parameters; electrochemical potential, concrete resistivity and corrosion rate. The measurements were performed with commercial devices. It was found that all devices are applicable for field inspections. Among the methods selected for the study, the electrochemical potential measured in a fine grid and analysed statistically offered the best possibility of evaluating the corrosion state; preferably in combination with selected excavations for determination of the level of corrosion. |
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Datenseite - Reference-ID
10705840 - Veröffentlicht am:
19.02.2023 - Geändert am:
19.02.2023
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