Concrete Examination of 100-Year-Old Bridge Structure above the Kłodnica River Flowing through the Agglomeration of Upper Silesia in Gliwice: A Case Study
| Autor: | Wiktoria Drzyzga, B. Słomka-Słupik, Marcel Maksara, J. Podwórny, Beata Grynkiewicz-Bylina, Bibianna Bartoszek, Marek Salamak |
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| Rok vydání: | 2021 |
| Předmět: |
0211 other engineering and technologies
bridge durability 020101 civil engineering Context (language use) 02 engineering and technology Bridge (interpersonal) Chloride lcsh:Technology Article 0201 civil engineering Corrosion chemistry.chemical_compound contamination 021105 building & construction medicine General Materials Science Sulfate Arch lcsh:Microscopy heavy metals Inductively coupled plasma mass spectrometry lcsh:QC120-168.85 Kłodnica river in Gliwice lcsh:QH201-278.5 Economies of agglomeration lcsh:T Metallurgy decalcification ICP concrete destruction chemistry lcsh:TA1-2040 Environmental science lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering lcsh:Engineering (General). Civil engineering (General) lcsh:TK1-9971 medicine.drug |
| Zdroj: | Materials Materials, Vol 14, Iss 981, p 981 (2021) Volume 14 Issue 4 |
| ISSN: | 1996-1944 |
| Popis: | The article analyzes the composition of concrete taken from various elements from a 100-year-old bridge in South Poland, so as to analyze its technical condition. The main methods applied during experimental work were: Designation of pH, free chloride content, salinity, XRD and SEM examinations, as well as metals determination using inductively coupled plasma mass spectrometry (ICPMS), high-performance liquid chromatography (HPLC)-ICP-MS, and cold-vapor atomic absorption spectroscopy (CV-AAS). The concrete of the bridge was strongly carbonated and decalcified with an extremely high content of chlorides. The pH of the concrete was in a range from 10.5 to 12.0. Acid soluble components were between 9.9% and 17.6%. Typical sulfate corrosion phases of concrete were not detected. Friedels’ salt was found only at the extremity of an arch. The crown block was corroded to the greatest extent. Various heavy metals were absorbed into the concrete, likely from previous centuries, when environmental protection policy was poor. The applied research methodology can be used on bridges exposed to specific external influences. The acquired knowledge can be useful in the management processes of the bridge infrastructure. It can help in making decisions about decommissioning or extending the life cycle of the bridge. This work should also sensitize researchers and decision-makers to the context of “bridge safety”. |
| Databáze: | OpenAIRE |
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