Physical, chemical and mineralogical properties of fine recycled aggregates made from concrete waste

Detalhes bibliográficos
Autor(a) principal: Evangelista, Luis
Data de Publicação: 2015
Outros Autores: Guedes, Mafalda, De Brito, Jorge, Ferro, Alberto C., Pereira, M. F.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.21/5717
Resumo: This paper assesses the physical, chemical and mineralogical characteristics of fine recycled aggregates obtained from crushed concrete waste, comparing them with two types of natural fine aggregates from different origins. A commercial concrete was jaw crushed, and the effect of different aperture sizes on the particle size distribution of the resulting aggregates was evaluated. The density and water absorption of the recycled aggregates was determined and a model for predicting water absorption over time is proposed. Both natural and recycled aggregates were characterized regarding bulk density and fines content. Recycled aggregates were additionally characterized by XRD, SEM/EDS and DTA/TG of individual size fractions. The results show that natural and recycled fine aggregates have very different characteristics. This should be considered in potential applications, both in terms of the limits for replacing amounts and of the rules and design criteria of the manufactured products. (C) 2015 Elsevier Ltd. All rights reserved.
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spelling Physical, chemical and mineralogical properties of fine recycled aggregates made from concrete wasteSource concreteFine recycled aggregatesWater absorption kineticsParticle sizeParticle distributionMicrostructureThis paper assesses the physical, chemical and mineralogical characteristics of fine recycled aggregates obtained from crushed concrete waste, comparing them with two types of natural fine aggregates from different origins. A commercial concrete was jaw crushed, and the effect of different aperture sizes on the particle size distribution of the resulting aggregates was evaluated. The density and water absorption of the recycled aggregates was determined and a model for predicting water absorption over time is proposed. Both natural and recycled aggregates were characterized regarding bulk density and fines content. Recycled aggregates were additionally characterized by XRD, SEM/EDS and DTA/TG of individual size fractions. The results show that natural and recycled fine aggregates have very different characteristics. This should be considered in potential applications, both in terms of the limits for replacing amounts and of the rules and design criteria of the manufactured products. (C) 2015 Elsevier Ltd. All rights reserved.Elsevier Science LtdRCIPLEvangelista, LuisGuedes, MafaldaDe Brito, JorgeFerro, Alberto C.Pereira, M. F.2016-02-23T16:28:52Z2015-07-012015-07-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/5717engEVANGELISTA, Luís; [et al.] - Physical, chemical and mineralogical properties of fine recycled aggregates made from concrete waste. Construction and Building Materials. ISSN. 0950-0618. Vol. 86 (2015), pp. 178-1880950-061810.1016/j.conbuildmat.2015.03.112metadata 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:RCAAP2023-08-03T09:49:32Zoai:repositorio.ipl.pt:10400.21/5717Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:14:57.824906Repositório 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 Physical, chemical and mineralogical properties of fine recycled aggregates made from concrete waste
title Physical, chemical and mineralogical properties of fine recycled aggregates made from concrete waste
spellingShingle Physical, chemical and mineralogical properties of fine recycled aggregates made from concrete waste
Evangelista, Luis
Source concrete
Fine recycled aggregates
Water absorption kinetics
Particle size
Particle distribution
Microstructure
title_short Physical, chemical and mineralogical properties of fine recycled aggregates made from concrete waste
title_full Physical, chemical and mineralogical properties of fine recycled aggregates made from concrete waste
title_fullStr Physical, chemical and mineralogical properties of fine recycled aggregates made from concrete waste
title_full_unstemmed Physical, chemical and mineralogical properties of fine recycled aggregates made from concrete waste
title_sort Physical, chemical and mineralogical properties of fine recycled aggregates made from concrete waste
author Evangelista, Luis
author_facet Evangelista, Luis
Guedes, Mafalda
De Brito, Jorge
Ferro, Alberto C.
Pereira, M. F.
author_role author
author2 Guedes, Mafalda
De Brito, Jorge
Ferro, Alberto C.
Pereira, M. F.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv RCIPL
dc.contributor.author.fl_str_mv Evangelista, Luis
Guedes, Mafalda
De Brito, Jorge
Ferro, Alberto C.
Pereira, M. F.
dc.subject.por.fl_str_mv Source concrete
Fine recycled aggregates
Water absorption kinetics
Particle size
Particle distribution
Microstructure
topic Source concrete
Fine recycled aggregates
Water absorption kinetics
Particle size
Particle distribution
Microstructure
description This paper assesses the physical, chemical and mineralogical characteristics of fine recycled aggregates obtained from crushed concrete waste, comparing them with two types of natural fine aggregates from different origins. A commercial concrete was jaw crushed, and the effect of different aperture sizes on the particle size distribution of the resulting aggregates was evaluated. The density and water absorption of the recycled aggregates was determined and a model for predicting water absorption over time is proposed. Both natural and recycled aggregates were characterized regarding bulk density and fines content. Recycled aggregates were additionally characterized by XRD, SEM/EDS and DTA/TG of individual size fractions. The results show that natural and recycled fine aggregates have very different characteristics. This should be considered in potential applications, both in terms of the limits for replacing amounts and of the rules and design criteria of the manufactured products. (C) 2015 Elsevier Ltd. All rights reserved.
publishDate 2015
dc.date.none.fl_str_mv 2015-07-01
2015-07-01T00:00:00Z
2016-02-23T16:28:52Z
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/10400.21/5717
url http://hdl.handle.net/10400.21/5717
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv EVANGELISTA, Luís; [et al.] - Physical, chemical and mineralogical properties of fine recycled aggregates made from concrete waste. Construction and Building Materials. ISSN. 0950-0618. Vol. 86 (2015), pp. 178-188
0950-0618
10.1016/j.conbuildmat.2015.03.112
dc.rights.driver.fl_str_mv metadata only access
info:eu-repo/semantics/openAccess
rights_invalid_str_mv metadata only access
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier Science Ltd
publisher.none.fl_str_mv Elsevier Science Ltd
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
repository.mail.fl_str_mv
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