Thermographic imaging for early detection of biocolonization on buildings
| Autor: | Fany Reffuveille, Kamel Mouhoubi, Stéphanie Eyssautier-Chuine, Jean-Luc Bodnar |
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| Přispěvatelé: | Groupe d'Étude sur les Géomatériaux et Environnements Naturels, Anthropiques et Archéologiques - EA 3795 (GEGENAA), Université de Reims Champagne-Ardenne (URCA)-SFR Condorcet, Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Centre National de la Recherche Scientifique (CNRS)-Maison des Sciences Humaines de Champagne-Ardenne (MSH-URCA), Université de Reims Champagne-Ardenne (URCA)-Université de Reims Champagne-Ardenne (URCA), Institut de Thermique, Mécanique, Matériaux (ITheMM), Université de Reims Champagne-Ardenne (URCA), Biomatériaux et inflammation en site osseux - EA 4691 (BIOS), Université de Reims Champagne-Ardenne (URCA)-Institut National de la Santé et de la Recherche Médicale (INSERM)-SFR CAP Santé (Champagne-Ardenne Picardie Santé), Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV)-Université de Reims Champagne-Ardenne (URCA)-Université de Picardie Jules Verne (UPJV), EYSSAUTIER, Stéphanie |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
[SPI] Engineering Sciences [physics] 0211 other engineering and technologies detection stone building Early detection Nanotechnology 02 engineering and technology Building and Construction 010501 environmental sciences Substrate (biology) biochemical phenomena metabolism and nutrition 01 natural sciences biofilm [SPI]Engineering Sciences [physics] Thermographic imaging Infrared thermography 021108 energy Historical heritage 0105 earth and related environmental sciences Civil and Structural Engineering |
| Zdroj: | Building Research and Information Building Research and Information, Taylor & Francis (Routledge), 2020, pp.1-10. ⟨10.1080/09613218.2020.1730740⟩ Building Research and Information, 2020, 48 (8), pp.1-10. ⟨10.1080/09613218.2020.1730740⟩ |
| ISSN: | 0961-3218 1466-4321 |
| Popis: | International audience; Biofilms developed on historical heritage buildings are made of various microbial communities settled and anchored in a substrate. They provide a good medium to the development of macroscopic vegetation which causes irreversible and physical damage to stone structure. Infrared thermography (IRT) measurements have been performed in laboratory scale to investigate the applicability of this non-destructive technique to an early detection of microbial biofilms on stone surface. Detecting biofilms before stone soiling is important in Cultural Heritage conservation to avoid both irreversible damage and building restoration costs.Active IRT was set up on a French limestone used in many French buildings and monuments. Samples were collected after six-months of exposure in an outdoor biofouling test during which they were colonized by microbial biofilms. They have been compared with controls with no biofilm. Experimental set-up has been carried out in dry and damp conditions to simulate different climatic conditions. First results displayed a different thermal response: stone surfaces with biofilm reached higher temperatures and they cooled down faster than row stones. Biofilm entailed a change of the stone thermal behaviour similar to a monolayer. IRT detected biofilm with a better efficiency in dry than in damp condition. |
| Databáze: | OpenAIRE |
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