The effect of multi-recycling on the mechanical performance of coarse recycled aggregates concrete

Detalhes bibliográficos
Autor(a) principal: Abreu, Vilson
Data de Publicação: 2018
Outros Autores: Evangelista, Luis, De Brito, Jorge
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.21/9087
Resumo: This paper presents the mechanical performance results obtained to evaluate the effect of incorporating coarse recycled aggregates from various recycling cycles. These aggregates were obtained from crushing elements of concrete of controlled origin, which were mixed to have the same performance in each cycle. The specific purpose was to study the mechanical performance of concrete designed with incorporation of coarse recycled aggregates from three successive recycling cycles at two replacement ratios, 25% and 100%, comparing it with that of a reference concrete, a mix with the same composition but where all aggregates are natural. An experimental campaign was carried out: to obtain all the necessary coarse recycled aggregates; to produce the concrete mixes that were the source of the recycled coarse aggregates; to produce the concrete mixes that were studied and; to perform all the necessary tests to evaluate the mechanical properties of these concrete mixes. Compressive strength, modulus of elasticity, tensile strength and abrasion resistance were tested. The results prove that, with the increase of the number of recycling cycles of the coarse aggregates, there is a decrease of its quality that affects the mechanical performance of concrete. That mechanical performance decreases asymptotically with the number of recycling cycles, tending towards a final value representative of the property’s stabilization, and linearly with the increase in the ratio of incorporation of recycled coarse aggregates. It is concluded that, by knowing the final value, concrete with incorporation of coarse recycled aggregates from any recycling cycle can be designed for the most diverse applications with a good safety level.
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spelling The effect of multi-recycling on the mechanical performance of coarse recycled aggregates concreteConcreteRecycled aggregatesElasticityTensile strengthAbrasion resistanceCimentoReciclagem de agregadoElasticidadeResistência ao desgasteThis paper presents the mechanical performance results obtained to evaluate the effect of incorporating coarse recycled aggregates from various recycling cycles. These aggregates were obtained from crushing elements of concrete of controlled origin, which were mixed to have the same performance in each cycle. The specific purpose was to study the mechanical performance of concrete designed with incorporation of coarse recycled aggregates from three successive recycling cycles at two replacement ratios, 25% and 100%, comparing it with that of a reference concrete, a mix with the same composition but where all aggregates are natural. An experimental campaign was carried out: to obtain all the necessary coarse recycled aggregates; to produce the concrete mixes that were the source of the recycled coarse aggregates; to produce the concrete mixes that were studied and; to perform all the necessary tests to evaluate the mechanical properties of these concrete mixes. Compressive strength, modulus of elasticity, tensile strength and abrasion resistance were tested. The results prove that, with the increase of the number of recycling cycles of the coarse aggregates, there is a decrease of its quality that affects the mechanical performance of concrete. That mechanical performance decreases asymptotically with the number of recycling cycles, tending towards a final value representative of the property’s stabilization, and linearly with the increase in the ratio of incorporation of recycled coarse aggregates. It is concluded that, by knowing the final value, concrete with incorporation of coarse recycled aggregates from any recycling cycle can be designed for the most diverse applications with a good safety level.ElsevierRCIPLAbreu, VilsonEvangelista, LuisDe Brito, Jorge2018-11-27T11:02:27Z2018-11-102018-11-10T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/9087engABREU, Vilson; EVANGELISTA, Luís; BRITO, Jorge de – The effect of multi-recycling on the mechanical performance of coarse recycled aggregates concrete. Construction and Building Materials. ISSN 0950-0618. Vol. 188 (2018), pp. 480-4890950-0618https://doi.org/10.1016/j.conbuildmat.2018.07.178metadata only accessinfo: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:RCAAP2023-08-03T09:57:22Zoai:repositorio.ipl.pt:10400.21/9087Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:17:44.026360Repositório 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 The effect of multi-recycling on the mechanical performance of coarse recycled aggregates concrete
title The effect of multi-recycling on the mechanical performance of coarse recycled aggregates concrete
spellingShingle The effect of multi-recycling on the mechanical performance of coarse recycled aggregates concrete
Abreu, Vilson
Concrete
Recycled aggregates
Elasticity
Tensile strength
Abrasion resistance
Cimento
Reciclagem de agregado
Elasticidade
Resistência ao desgaste
title_short The effect of multi-recycling on the mechanical performance of coarse recycled aggregates concrete
title_full The effect of multi-recycling on the mechanical performance of coarse recycled aggregates concrete
title_fullStr The effect of multi-recycling on the mechanical performance of coarse recycled aggregates concrete
title_full_unstemmed The effect of multi-recycling on the mechanical performance of coarse recycled aggregates concrete
title_sort The effect of multi-recycling on the mechanical performance of coarse recycled aggregates concrete
author Abreu, Vilson
author_facet Abreu, Vilson
Evangelista, Luis
De Brito, Jorge
author_role author
author2 Evangelista, Luis
De Brito, Jorge
author2_role author
author
dc.contributor.none.fl_str_mv RCIPL
dc.contributor.author.fl_str_mv Abreu, Vilson
Evangelista, Luis
De Brito, Jorge
dc.subject.por.fl_str_mv Concrete
Recycled aggregates
Elasticity
Tensile strength
Abrasion resistance
Cimento
Reciclagem de agregado
Elasticidade
Resistência ao desgaste
topic Concrete
Recycled aggregates
Elasticity
Tensile strength
Abrasion resistance
Cimento
Reciclagem de agregado
Elasticidade
Resistência ao desgaste
description This paper presents the mechanical performance results obtained to evaluate the effect of incorporating coarse recycled aggregates from various recycling cycles. These aggregates were obtained from crushing elements of concrete of controlled origin, which were mixed to have the same performance in each cycle. The specific purpose was to study the mechanical performance of concrete designed with incorporation of coarse recycled aggregates from three successive recycling cycles at two replacement ratios, 25% and 100%, comparing it with that of a reference concrete, a mix with the same composition but where all aggregates are natural. An experimental campaign was carried out: to obtain all the necessary coarse recycled aggregates; to produce the concrete mixes that were the source of the recycled coarse aggregates; to produce the concrete mixes that were studied and; to perform all the necessary tests to evaluate the mechanical properties of these concrete mixes. Compressive strength, modulus of elasticity, tensile strength and abrasion resistance were tested. The results prove that, with the increase of the number of recycling cycles of the coarse aggregates, there is a decrease of its quality that affects the mechanical performance of concrete. That mechanical performance decreases asymptotically with the number of recycling cycles, tending towards a final value representative of the property’s stabilization, and linearly with the increase in the ratio of incorporation of recycled coarse aggregates. It is concluded that, by knowing the final value, concrete with incorporation of coarse recycled aggregates from any recycling cycle can be designed for the most diverse applications with a good safety level.
publishDate 2018
dc.date.none.fl_str_mv 2018-11-27T11:02:27Z
2018-11-10
2018-11-10T00:00:00Z
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/10400.21/9087
url http://hdl.handle.net/10400.21/9087
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv ABREU, Vilson; EVANGELISTA, Luís; BRITO, Jorge de – The effect of multi-recycling on the mechanical performance of coarse recycled aggregates concrete. Construction and Building Materials. ISSN 0950-0618. Vol. 188 (2018), pp. 480-489
0950-0618
https://doi.org/10.1016/j.conbuildmat.2018.07.178
dc.rights.driver.fl_str_mv metadata only access
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rights_invalid_str_mv metadata only access
eu_rights_str_mv openAccess
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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)
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