Development of Passive Fire Protection Mortars
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/100482 https://doi.org/10.3390/app12042093 |
Resumo: | During a fire event, the stability of steel structures may be compromised, and structural collapse may occur due to the loss of their mechanical resistance as the temperature increases. One of the solutions to reduce this problem is the protection with a coating using enhanced fire-resistant mortars. This paper reports a detailed experimental work aiming to develop gypsum and cementbased mortars for passive fire protection and evaluate their composition’s effect in the final thermal performance. Two types of specimens were tested: (i) small specimens composed of a mortar coating (10 mm thick) and one steel plate and (ii) square section short tubular steel columns with 20 mm of coating. The evaluation of the thermal protection was carried out by (a) measuring the thermal gradient between the exposed surface of the protected steel plate under high temperatures and the mortar-steel interface and (b) assessing the fire resistance of the short steel columns. It was concluded that the compositions with gypsum binder present better thermal insulation than the cementitious compositions. Additionally, the introduction of nano-and microparticles of silica still slightly improved the thermal insulation of the tested compositions. |
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Development of Passive Fire Protection MortarsCementFireGypsumHeat transferInsulationMortarNano-and microsilicaPassive fire protectionSteel columnsDuring a fire event, the stability of steel structures may be compromised, and structural collapse may occur due to the loss of their mechanical resistance as the temperature increases. One of the solutions to reduce this problem is the protection with a coating using enhanced fire-resistant mortars. This paper reports a detailed experimental work aiming to develop gypsum and cementbased mortars for passive fire protection and evaluate their composition’s effect in the final thermal performance. Two types of specimens were tested: (i) small specimens composed of a mortar coating (10 mm thick) and one steel plate and (ii) square section short tubular steel columns with 20 mm of coating. The evaluation of the thermal protection was carried out by (a) measuring the thermal gradient between the exposed surface of the protected steel plate under high temperatures and the mortar-steel interface and (b) assessing the fire resistance of the short steel columns. It was concluded that the compositions with gypsum binder present better thermal insulation than the cementitious compositions. Additionally, the introduction of nano-and microparticles of silica still slightly improved the thermal insulation of the tested compositions.2022info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/100482http://hdl.handle.net/10316/100482https://doi.org/10.3390/app12042093eng2076-3417Caetano, Hugo Filipe dos SantosLaím, Luís Miguel dos SantosSantiago, Aldina Maria da CruzDurães, LuisaShahbazian, Ashkaninfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-06-23T20:31:34Zoai:estudogeral.uc.pt:10316/100482Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T21:17:51.692052Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Development of Passive Fire Protection Mortars |
title |
Development of Passive Fire Protection Mortars |
spellingShingle |
Development of Passive Fire Protection Mortars Caetano, Hugo Filipe dos Santos Cement Fire Gypsum Heat transfer Insulation Mortar Nano-and microsilica Passive fire protection Steel columns |
title_short |
Development of Passive Fire Protection Mortars |
title_full |
Development of Passive Fire Protection Mortars |
title_fullStr |
Development of Passive Fire Protection Mortars |
title_full_unstemmed |
Development of Passive Fire Protection Mortars |
title_sort |
Development of Passive Fire Protection Mortars |
author |
Caetano, Hugo Filipe dos Santos |
author_facet |
Caetano, Hugo Filipe dos Santos Laím, Luís Miguel dos Santos Santiago, Aldina Maria da Cruz Durães, Luisa Shahbazian, Ashkan |
author_role |
author |
author2 |
Laím, Luís Miguel dos Santos Santiago, Aldina Maria da Cruz Durães, Luisa Shahbazian, Ashkan |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Caetano, Hugo Filipe dos Santos Laím, Luís Miguel dos Santos Santiago, Aldina Maria da Cruz Durães, Luisa Shahbazian, Ashkan |
dc.subject.por.fl_str_mv |
Cement Fire Gypsum Heat transfer Insulation Mortar Nano-and microsilica Passive fire protection Steel columns |
topic |
Cement Fire Gypsum Heat transfer Insulation Mortar Nano-and microsilica Passive fire protection Steel columns |
description |
During a fire event, the stability of steel structures may be compromised, and structural collapse may occur due to the loss of their mechanical resistance as the temperature increases. One of the solutions to reduce this problem is the protection with a coating using enhanced fire-resistant mortars. This paper reports a detailed experimental work aiming to develop gypsum and cementbased mortars for passive fire protection and evaluate their composition’s effect in the final thermal performance. Two types of specimens were tested: (i) small specimens composed of a mortar coating (10 mm thick) and one steel plate and (ii) square section short tubular steel columns with 20 mm of coating. The evaluation of the thermal protection was carried out by (a) measuring the thermal gradient between the exposed surface of the protected steel plate under high temperatures and the mortar-steel interface and (b) assessing the fire resistance of the short steel columns. It was concluded that the compositions with gypsum binder present better thermal insulation than the cementitious compositions. Additionally, the introduction of nano-and microparticles of silica still slightly improved the thermal insulation of the tested compositions. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/100482 http://hdl.handle.net/10316/100482 https://doi.org/10.3390/app12042093 |
url |
http://hdl.handle.net/10316/100482 https://doi.org/10.3390/app12042093 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2076-3417 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799134074265141248 |