Influence of cooling methods on the residual mechanical behavior of fire-exposed concrete : an experimental study.

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dc.contributor.authorCarvalho, Espedito Felipe Teixeira de
dc.contributor.authorSilva Neto, João Trajano da
dc.contributor.authorSoares Junior, Paulo Roberto Ribeiro
dc.contributor.authorMaciel, Priscila de Souza
dc.contributor.authorFransozo, Helder Luis
dc.contributor.authorBezerra, Augusto Cesar da Silva
dc.contributor.authorGouveia, Antônio Maria Claret de
dc.date.accessioned2022-10-06T19:35:01Z
dc.date.available2022-10-06T19:35:01Z
dc.date.issued2019pt_BR
dc.description.abstractThis work reports the main conclusions of a study on the mechanical behavior of concrete under ISO 834 fire with different cooling methods. The aim of this research was to provide reliable data for the analysis of structures damaged by fire. The experimental program used cylindrical concrete test specimens subjected to ISO 834 heating in a furnace up to maximum gas temperatures of 400, 500, 600, 700, and 800 ◦C. The compressive strength was measured in three situations: (a) at the different temperature levels reached in the furnace; (b) after a natural cooling process; and (c) after aspersion with water at ambient temperature. The results indicate that the concrete residual compressive strength is fairly dependent on the maximum temperature reached in the furnace and revealed that concrete of a lower strength preserved relatively higher levels of strength. The cooling method significantly influenced the strength, albeit at a lower intensity. In all cases, the residual strength remained in the range of 38% to 67% of the strength at ambient temperature. The statistical analysis showed that the data obtained by the experimental program are significant and confirmed the influence of the conditions imposed on the residual strength.pt_BR
dc.identifier.citationCARVALHO, E. F. T. de et al. Influence of cooling methods on the residual mechanical behavior of fire-exposed concrete: an experimental study. Materials, v. 12, 2019. Disponível em: <https://www.mdpi.com/1996-1944/12/21/3512>. Acesso em: 29 abr. 2022.pt_BR
dc.identifier.doihttps://doi.org/10.3390/ma12213512pt_BR
dc.identifier.issn2317-7721
dc.identifier.urihttp://www.repositorio.ufop.br/jspui/handle/123456789/15607
dc.language.isoen_USpt_BR
dc.rightsabertopt_BR
dc.rights.licenseThis 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/). Fonte: o PDF do artigo.pt_BR
dc.subjectConcrete fire degradationpt_BR
dc.titleInfluence of cooling methods on the residual mechanical behavior of fire-exposed concrete : an experimental study.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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