Preservation of urban heritage by passive thermography: study on ceramic facades in Belo Horizonte
DOI:
https://doi.org/10.11606/issn.2317-2762.posfauusp.2023.185927Keywords:
National exhibitions, Fascism, New state, PolíticsAbstract
Belo Horizonte is a city with a significant number of façades covered in ceramics due to the strong European and American influence, which turns the city an important urban heritage. However, this heritage is constantly threatened by the appearance of pathologies throughout its useful life. The most common are adherence’s loss and infiltrations. Destructive techniques are used to identify such pathologies, but its damage the façade. A non-destructive technique capable of detecting defects in large areas is infrared thermography, which captures the thermal radiation emitted by the material’s surfaces. In this article, passive thermography was used to inspect façades submitted to direct sunlight at different times. An experimental model was built, for control, and five façades with different ages were evaluated. The data indicate that the thermography allows to distinguish punctual and/or generalized detachments. It was possible to identify humidity, the presence of thermal insulation, as well as the color’s influence and the material’s type. The environmental interference conditions (measurement time and cloudiness) in the collected data were also verified.
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Copyright (c) 2023 Cristiane, Rodrigo, Débora, Teresa, Rosemary do Bom Conselho Sales
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This work is licensed under a Creative Commons Attribution 4.0 International License.
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