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Diagnostics of Concrete and Steel in Elements of an Historic Reinforced Concrete Structure

Existing buildings, especially historical buildings, require periodic or situational diagnostic tests. If a building is in use, advanced non-destructive or semi-destructive methods should be used. In the diagnosis of reinforced concrete structures, tests allowing to assess the condition of the reinf...

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Autores principales: Tworzewski, Paweł, Raczkiewicz, Wioletta, Czapik, Przemysław, Tworzewska, Justyna
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7827965/
https://www.ncbi.nlm.nih.gov/pubmed/33435605
http://dx.doi.org/10.3390/ma14020306
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author Tworzewski, Paweł
Raczkiewicz, Wioletta
Czapik, Przemysław
Tworzewska, Justyna
author_facet Tworzewski, Paweł
Raczkiewicz, Wioletta
Czapik, Przemysław
Tworzewska, Justyna
author_sort Tworzewski, Paweł
collection PubMed
description Existing buildings, especially historical buildings, require periodic or situational diagnostic tests. If a building is in use, advanced non-destructive or semi-destructive methods should be used. In the diagnosis of reinforced concrete structures, tests allowing to assess the condition of the reinforcement and concrete cover are particularly important. The article presents non-destructive and semi-destructive research methods that are used for such tests, as well as the results of tests performed for selected elements of a historic water tower structure. The assessment of the corrosion risk of the reinforcement was carried out with the use of a semi-destructive galvanostatic pulse method. The protective properties of the concrete cover were checked by the carbonation test and the phase analysis of the concrete. X-ray diffractometry and thermal analysis methods were used for this. In order to determine the position of the reinforcement and to estimate the concrete cover thickness distribution, a ferromagnetic detection system was used. The comprehensive application of several test methods allowed mutual verification of the results and the drawing of reliable conclusions. The results indicated a very poor state of the reinforcement, loss in the depth of cover and sulphate corrosion.
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spelling pubmed-78279652021-01-25 Diagnostics of Concrete and Steel in Elements of an Historic Reinforced Concrete Structure Tworzewski, Paweł Raczkiewicz, Wioletta Czapik, Przemysław Tworzewska, Justyna Materials (Basel) Article Existing buildings, especially historical buildings, require periodic or situational diagnostic tests. If a building is in use, advanced non-destructive or semi-destructive methods should be used. In the diagnosis of reinforced concrete structures, tests allowing to assess the condition of the reinforcement and concrete cover are particularly important. The article presents non-destructive and semi-destructive research methods that are used for such tests, as well as the results of tests performed for selected elements of a historic water tower structure. The assessment of the corrosion risk of the reinforcement was carried out with the use of a semi-destructive galvanostatic pulse method. The protective properties of the concrete cover were checked by the carbonation test and the phase analysis of the concrete. X-ray diffractometry and thermal analysis methods were used for this. In order to determine the position of the reinforcement and to estimate the concrete cover thickness distribution, a ferromagnetic detection system was used. The comprehensive application of several test methods allowed mutual verification of the results and the drawing of reliable conclusions. The results indicated a very poor state of the reinforcement, loss in the depth of cover and sulphate corrosion. MDPI 2021-01-08 /pmc/articles/PMC7827965/ /pubmed/33435605 http://dx.doi.org/10.3390/ma14020306 Text en © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Tworzewski, Paweł
Raczkiewicz, Wioletta
Czapik, Przemysław
Tworzewska, Justyna
Diagnostics of Concrete and Steel in Elements of an Historic Reinforced Concrete Structure
title Diagnostics of Concrete and Steel in Elements of an Historic Reinforced Concrete Structure
title_full Diagnostics of Concrete and Steel in Elements of an Historic Reinforced Concrete Structure
title_fullStr Diagnostics of Concrete and Steel in Elements of an Historic Reinforced Concrete Structure
title_full_unstemmed Diagnostics of Concrete and Steel in Elements of an Historic Reinforced Concrete Structure
title_short Diagnostics of Concrete and Steel in Elements of an Historic Reinforced Concrete Structure
title_sort diagnostics of concrete and steel in elements of an historic reinforced concrete structure
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7827965/
https://www.ncbi.nlm.nih.gov/pubmed/33435605
http://dx.doi.org/10.3390/ma14020306
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