Fracture behaviour of concrete with reactive magnesium oxide as alternative binder
Autor(a) principal: | |
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Data de Publicação: | 2021 |
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/10400.21/13418 |
Resumo: | This research evaluates the fracture behavior of concrete with reactive magnesium oxide (MgO). Replacing cement with MgO is an attractive option for the concrete industry, mainly due to sustainability benefits and reduction of shrinkage. Four different MgO's from Australia, Canada, and Spain were used in the concrete mixes, as a partial substitute of cement, at 5%, 10%, and 20% (by weight). The fracture toughness (K-I) intensity factor and the stress-strain softening parameters of the wedge split test were evaluated after 28 days. The experimental results showed that the replacement of cement with MgO reduced the fracture energy between 13% and 53%. Moreover, the fracture energy was found to be correlated with both compressive strength and modulus of elasticity. A well-defined relationship between these properties is important for an adequate prediction of the non-linear behavior of reinforced concrete structures made with partial replacement of cement with MgO. |
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Fracture behaviour of concrete with reactive magnesium oxide as alternative binderReactive magnesium oxideFracture energyWedge splitting testAlternative binderConcreteThis research evaluates the fracture behavior of concrete with reactive magnesium oxide (MgO). Replacing cement with MgO is an attractive option for the concrete industry, mainly due to sustainability benefits and reduction of shrinkage. Four different MgO's from Australia, Canada, and Spain were used in the concrete mixes, as a partial substitute of cement, at 5%, 10%, and 20% (by weight). The fracture toughness (K-I) intensity factor and the stress-strain softening parameters of the wedge split test were evaluated after 28 days. The experimental results showed that the replacement of cement with MgO reduced the fracture energy between 13% and 53%. Moreover, the fracture energy was found to be correlated with both compressive strength and modulus of elasticity. A well-defined relationship between these properties is important for an adequate prediction of the non-linear behavior of reinforced concrete structures made with partial replacement of cement with MgO.MDPIRCIPLForero, J. A.Bravo, M.Pacheco, JoãoDe Brito, JorgeEvangelista, Luis2021-06-04T13:53:51Z2021-03-242021-03-24T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/13418engFORERO, J. A.; [et al] – Fracture behaviour of concrete with reactive magnesium oxide as alternative binder. Applied Sciences. eISSN 2076-3417. Vol. 11, N.º 7 (2021), pp. 1-1310.3390/app110728912076-3417info: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:RCAAP2023-08-03T10:08:05Zoai:repositorio.ipl.pt:10400.21/13418Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:21:22.277004Repositório 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 |
Fracture behaviour of concrete with reactive magnesium oxide as alternative binder |
title |
Fracture behaviour of concrete with reactive magnesium oxide as alternative binder |
spellingShingle |
Fracture behaviour of concrete with reactive magnesium oxide as alternative binder Forero, J. A. Reactive magnesium oxide Fracture energy Wedge splitting test Alternative binder Concrete |
title_short |
Fracture behaviour of concrete with reactive magnesium oxide as alternative binder |
title_full |
Fracture behaviour of concrete with reactive magnesium oxide as alternative binder |
title_fullStr |
Fracture behaviour of concrete with reactive magnesium oxide as alternative binder |
title_full_unstemmed |
Fracture behaviour of concrete with reactive magnesium oxide as alternative binder |
title_sort |
Fracture behaviour of concrete with reactive magnesium oxide as alternative binder |
author |
Forero, J. A. |
author_facet |
Forero, J. A. Bravo, M. Pacheco, João De Brito, Jorge Evangelista, Luis |
author_role |
author |
author2 |
Bravo, M. Pacheco, João De Brito, Jorge Evangelista, Luis |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Forero, J. A. Bravo, M. Pacheco, João De Brito, Jorge Evangelista, Luis |
dc.subject.por.fl_str_mv |
Reactive magnesium oxide Fracture energy Wedge splitting test Alternative binder Concrete |
topic |
Reactive magnesium oxide Fracture energy Wedge splitting test Alternative binder Concrete |
description |
This research evaluates the fracture behavior of concrete with reactive magnesium oxide (MgO). Replacing cement with MgO is an attractive option for the concrete industry, mainly due to sustainability benefits and reduction of shrinkage. Four different MgO's from Australia, Canada, and Spain were used in the concrete mixes, as a partial substitute of cement, at 5%, 10%, and 20% (by weight). The fracture toughness (K-I) intensity factor and the stress-strain softening parameters of the wedge split test were evaluated after 28 days. The experimental results showed that the replacement of cement with MgO reduced the fracture energy between 13% and 53%. Moreover, the fracture energy was found to be correlated with both compressive strength and modulus of elasticity. A well-defined relationship between these properties is important for an adequate prediction of the non-linear behavior of reinforced concrete structures made with partial replacement of cement with MgO. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-06-04T13:53:51Z 2021-03-24 2021-03-24T00:00:00Z |
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/10400.21/13418 |
url |
http://hdl.handle.net/10400.21/13418 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
FORERO, J. A.; [et al] – Fracture behaviour of concrete with reactive magnesium oxide as alternative binder. Applied Sciences. eISSN 2076-3417. Vol. 11, N.º 7 (2021), pp. 1-13 10.3390/app11072891 2076-3417 |
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 |
MDPI |
publisher.none.fl_str_mv |
MDPI |
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 |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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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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1799133484842745856 |