State of Conservation of Concrete Heritage Buildings: A European Screening

G. Pardo Redondo, Giovanna Franco, Antroula Georgiou, Ioannis Ioannou, B. Lubelli, Stefano F. Musso, S. Naldini, Cristiana Nunes, Rita Vecchiattini

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

Historic concrete buildings are at risk. Limited knowledge of concrete technology until the 1960s led to more sensitive buildings than modern concrete buildings. In addition, the lack of sensibility regarding their heritage value and insufficient protection is leading to remorseless demolition. Still, concrete has proved to be a resilient material that can last over a century with proper care. There is not yet an estimation of the status of historic concrete buildings in Europe. Until now, a few attempts have been done to secondarily, and subjectively, gauge their conservation status. This paper is the result of a joint investigation studying forty-eight historic concrete buildings distributed in four countries. They were surveyed by expert teams according to a predefined methodology. The study aims to identify recurrent damages and parameters affecting the conservation state. It also aims to serve as the first trial for an objective and measurable methodology, to apply it with a statistically significant number of cases. Damages related to the corrosion of reinforcement and moisture-related processes were the most recurrent. The use of plasters, flat roofs, and structural façade walls show a positive effect in protecting the concrete. The state of conservation has a great variability across countries.
Original languageEnglish
Article number109
Number of pages15
JournalInfrastructures
Volume6
Issue number8
DOIs
Publication statusPublished - 2021

Keywords

  • assessment
  • concrete
  • damage processes
  • decay patterns
  • historic structures

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