Influence of different fibers on the change of pore pressure of self-consolidating concrete exposed to fire
Autor(a) principal: | |
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Data de Publicação: | 2016 |
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/1822/41213 |
Resumo: | The focus of this paper is given to investigate the effect of different fibers on the pore pressure of fiber reinforced self-consolidating concrete under fire. The investigation on the pore pressure-time and temperature relationships at different depths of fiber reinforced self-consolidating concrete beams was carried out. The results indicated that micro PP fiber is more effective in mitigating the pore pressure than macro PP fiber and steel fiber. The composed use of steel fiber, micro PP fiber and macro PP fiber showed clear positive hybrid effect on the pore pressure reduction near the beam bottom subjected to fire. Compared to the effect of macro PP fiber with high dosages, the effect of micro PP fiber with low fiber contents on the pore pressure reduction is much stronger. The significant factor for reduction of pore pressure depends mainly on the number of PP fibers and not only on the fiber content. An empirical formula was proposed to predict the relative maximum pore pressure of fiber reinforced self-consolidating concrete exposed to fire by considering the moisture content, compressive strength and various fibers. The suggested model corresponds well with the experimental results of other research and tends to prove that the micro PP fiber can be the vital component for reduction in pore pressure, temperature as well spalling of concrete. |
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Influence of different fibers on the change of pore pressure of self-consolidating concrete exposed to firePore pressureSpallingFireFibersSelf-consolidating concreteHybrid effectEngenharia e Tecnologia::Engenharia CivilCiências Naturais::MatemáticasScience & TechnologyThe focus of this paper is given to investigate the effect of different fibers on the pore pressure of fiber reinforced self-consolidating concrete under fire. The investigation on the pore pressure-time and temperature relationships at different depths of fiber reinforced self-consolidating concrete beams was carried out. The results indicated that micro PP fiber is more effective in mitigating the pore pressure than macro PP fiber and steel fiber. The composed use of steel fiber, micro PP fiber and macro PP fiber showed clear positive hybrid effect on the pore pressure reduction near the beam bottom subjected to fire. Compared to the effect of macro PP fiber with high dosages, the effect of micro PP fiber with low fiber contents on the pore pressure reduction is much stronger. The significant factor for reduction of pore pressure depends mainly on the number of PP fibers and not only on the fiber content. An empirical formula was proposed to predict the relative maximum pore pressure of fiber reinforced self-consolidating concrete exposed to fire by considering the moisture content, compressive strength and various fibers. The suggested model corresponds well with the experimental results of other research and tends to prove that the micro PP fiber can be the vital component for reduction in pore pressure, temperature as well spalling of concrete.National Natural Science Foundation of China (Grant: 51121005), DUT and Fundaçãopara a Ciência e a Tecnologia (SFRH/BPD/22680/2005), the FEDER Funds through “Programa Operacional Factores de Competitividade - COMPETE" and by Portuguese Funds through FCT-within the Projects PEst-CMAT/UI0013/2011 and PTDC/MAT/112273/2009.ElsevierUniversidade do MinhoDing, YiningZhang, CongCao, MingliZhang, YulinAzevedo, Cecília2016-062016-06-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/41213eng0950-061810.1016/j.conbuildmat.2016.03.070http://www.sciencedirect.com/science/article/pii/S0950061816303658info: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:RCAAP2023-07-21T11:54:40Zoai:repositorium.sdum.uminho.pt:1822/41213Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:44:09.540563Repositório 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 |
Influence of different fibers on the change of pore pressure of self-consolidating concrete exposed to fire |
title |
Influence of different fibers on the change of pore pressure of self-consolidating concrete exposed to fire |
spellingShingle |
Influence of different fibers on the change of pore pressure of self-consolidating concrete exposed to fire Ding, Yining Pore pressure Spalling Fire Fibers Self-consolidating concrete Hybrid effect Engenharia e Tecnologia::Engenharia Civil Ciências Naturais::Matemáticas Science & Technology |
title_short |
Influence of different fibers on the change of pore pressure of self-consolidating concrete exposed to fire |
title_full |
Influence of different fibers on the change of pore pressure of self-consolidating concrete exposed to fire |
title_fullStr |
Influence of different fibers on the change of pore pressure of self-consolidating concrete exposed to fire |
title_full_unstemmed |
Influence of different fibers on the change of pore pressure of self-consolidating concrete exposed to fire |
title_sort |
Influence of different fibers on the change of pore pressure of self-consolidating concrete exposed to fire |
author |
Ding, Yining |
author_facet |
Ding, Yining Zhang, Cong Cao, Mingli Zhang, Yulin Azevedo, Cecília |
author_role |
author |
author2 |
Zhang, Cong Cao, Mingli Zhang, Yulin Azevedo, Cecília |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Ding, Yining Zhang, Cong Cao, Mingli Zhang, Yulin Azevedo, Cecília |
dc.subject.por.fl_str_mv |
Pore pressure Spalling Fire Fibers Self-consolidating concrete Hybrid effect Engenharia e Tecnologia::Engenharia Civil Ciências Naturais::Matemáticas Science & Technology |
topic |
Pore pressure Spalling Fire Fibers Self-consolidating concrete Hybrid effect Engenharia e Tecnologia::Engenharia Civil Ciências Naturais::Matemáticas Science & Technology |
description |
The focus of this paper is given to investigate the effect of different fibers on the pore pressure of fiber reinforced self-consolidating concrete under fire. The investigation on the pore pressure-time and temperature relationships at different depths of fiber reinforced self-consolidating concrete beams was carried out. The results indicated that micro PP fiber is more effective in mitigating the pore pressure than macro PP fiber and steel fiber. The composed use of steel fiber, micro PP fiber and macro PP fiber showed clear positive hybrid effect on the pore pressure reduction near the beam bottom subjected to fire. Compared to the effect of macro PP fiber with high dosages, the effect of micro PP fiber with low fiber contents on the pore pressure reduction is much stronger. The significant factor for reduction of pore pressure depends mainly on the number of PP fibers and not only on the fiber content. An empirical formula was proposed to predict the relative maximum pore pressure of fiber reinforced self-consolidating concrete exposed to fire by considering the moisture content, compressive strength and various fibers. The suggested model corresponds well with the experimental results of other research and tends to prove that the micro PP fiber can be the vital component for reduction in pore pressure, temperature as well spalling of concrete. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-06 2016-06-01T00:00:00Z |
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/1822/41213 |
url |
http://hdl.handle.net/1822/41213 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0950-0618 10.1016/j.conbuildmat.2016.03.070 http://www.sciencedirect.com/science/article/pii/S0950061816303658 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Elsevier |
publisher.none.fl_str_mv |
Elsevier |
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 |
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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 |
repository.mail.fl_str_mv |
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1799132190634672128 |