Mechanical performance evaluation of self-compacting concrete with fine and coarse recycled aggregates from the precast industry
Autor(a) principal: | |
---|---|
Data de Publicação: | 2017 |
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/10400.21/8150 |
Resumo: | This paper intends to evaluate the feasibility of reintroducing recycled concrete aggregates in the precast industry. The mechanical properties of self-compacting concrete (SCC) with incorporation of recycled aggregates (RA) (coarse recycled aggregates (CRA) and fine recycled aggregates (FRA)) from crushed precast elements were evaluated. The goal was to evaluate the ability of producing SCC with a minimum pre-established performance in terms of mechanical strength, incorporating variable ratios of RA (FRA/CRA%: 0/0%, 25/25%, 50/50%, 0/100% and 100/0%) produced from precast source concretes with similar target performances. This replication in SCC was made for two strength classes (45 MPa and 65 MPa), with the intention of obtaining as final result concrete with recycled aggregates whose characteristics are compatible with those of a SCC with natural aggregates in terms of workability and mechanical strength. The results enabled conclusions to be established regarding the SCC’s produced with fine and coarse recycled aggregates from the precast industry, based on its mechanical properties. The properties studied are strongly affected by the type and content of recycled aggregates. The potential demonstrated, mainly in the hardened state, by the joint use of fine and coarse recycled aggregate is emphasized. |
id |
RCAP_7268234e1d4ca073c4d4579804331f7b |
---|---|
oai_identifier_str |
oai:repositorio.ipl.pt:10400.21/8150 |
network_acronym_str |
RCAP |
network_name_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository_id_str |
7160 |
spelling |
Mechanical performance evaluation of self-compacting concrete with fine and coarse recycled aggregates from the precast industrySelf-compacting concreteCoarse and fine recycled aggregates from the precast industryFresh propertiesMechanical propertiesThis paper intends to evaluate the feasibility of reintroducing recycled concrete aggregates in the precast industry. The mechanical properties of self-compacting concrete (SCC) with incorporation of recycled aggregates (RA) (coarse recycled aggregates (CRA) and fine recycled aggregates (FRA)) from crushed precast elements were evaluated. The goal was to evaluate the ability of producing SCC with a minimum pre-established performance in terms of mechanical strength, incorporating variable ratios of RA (FRA/CRA%: 0/0%, 25/25%, 50/50%, 0/100% and 100/0%) produced from precast source concretes with similar target performances. This replication in SCC was made for two strength classes (45 MPa and 65 MPa), with the intention of obtaining as final result concrete with recycled aggregates whose characteristics are compatible with those of a SCC with natural aggregates in terms of workability and mechanical strength. The results enabled conclusions to be established regarding the SCC’s produced with fine and coarse recycled aggregates from the precast industry, based on its mechanical properties. The properties studied are strongly affected by the type and content of recycled aggregates. The potential demonstrated, mainly in the hardened state, by the joint use of fine and coarse recycled aggregate is emphasized.MDPIRCIPLSantos, Sara A.Raposeiro Da Silva, PedroDe Brito, Jorge2018-02-28T09:19:46Z2017-082017-08-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/8150engSANTOS, Sara A.; SILVA, Pedro R. da; BRITO, Jorge de – Mechanical performance evaluation of self-compacting concrete with fine and coarse recycled aggregates from the precast industry. Materials. ISSN 1996-1944. Vol. 10, N.º 8, (2017), pp. 1-151996-194410.3390/ma10080904metadata 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:RCAAP2023-08-03T09:55:09Zoai:repositorio.ipl.pt:10400.21/8150Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:16:57.823306Repositório 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 |
Mechanical performance evaluation of self-compacting concrete with fine and coarse recycled aggregates from the precast industry |
title |
Mechanical performance evaluation of self-compacting concrete with fine and coarse recycled aggregates from the precast industry |
spellingShingle |
Mechanical performance evaluation of self-compacting concrete with fine and coarse recycled aggregates from the precast industry Santos, Sara A. Self-compacting concrete Coarse and fine recycled aggregates from the precast industry Fresh properties Mechanical properties |
title_short |
Mechanical performance evaluation of self-compacting concrete with fine and coarse recycled aggregates from the precast industry |
title_full |
Mechanical performance evaluation of self-compacting concrete with fine and coarse recycled aggregates from the precast industry |
title_fullStr |
Mechanical performance evaluation of self-compacting concrete with fine and coarse recycled aggregates from the precast industry |
title_full_unstemmed |
Mechanical performance evaluation of self-compacting concrete with fine and coarse recycled aggregates from the precast industry |
title_sort |
Mechanical performance evaluation of self-compacting concrete with fine and coarse recycled aggregates from the precast industry |
author |
Santos, Sara A. |
author_facet |
Santos, Sara A. Raposeiro Da Silva, Pedro De Brito, Jorge |
author_role |
author |
author2 |
Raposeiro Da Silva, Pedro De Brito, Jorge |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
RCIPL |
dc.contributor.author.fl_str_mv |
Santos, Sara A. Raposeiro Da Silva, Pedro De Brito, Jorge |
dc.subject.por.fl_str_mv |
Self-compacting concrete Coarse and fine recycled aggregates from the precast industry Fresh properties Mechanical properties |
topic |
Self-compacting concrete Coarse and fine recycled aggregates from the precast industry Fresh properties Mechanical properties |
description |
This paper intends to evaluate the feasibility of reintroducing recycled concrete aggregates in the precast industry. The mechanical properties of self-compacting concrete (SCC) with incorporation of recycled aggregates (RA) (coarse recycled aggregates (CRA) and fine recycled aggregates (FRA)) from crushed precast elements were evaluated. The goal was to evaluate the ability of producing SCC with a minimum pre-established performance in terms of mechanical strength, incorporating variable ratios of RA (FRA/CRA%: 0/0%, 25/25%, 50/50%, 0/100% and 100/0%) produced from precast source concretes with similar target performances. This replication in SCC was made for two strength classes (45 MPa and 65 MPa), with the intention of obtaining as final result concrete with recycled aggregates whose characteristics are compatible with those of a SCC with natural aggregates in terms of workability and mechanical strength. The results enabled conclusions to be established regarding the SCC’s produced with fine and coarse recycled aggregates from the precast industry, based on its mechanical properties. The properties studied are strongly affected by the type and content of recycled aggregates. The potential demonstrated, mainly in the hardened state, by the joint use of fine and coarse recycled aggregate is emphasized. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-08 2017-08-01T00:00:00Z 2018-02-28T09:19:46Z |
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/10400.21/8150 |
url |
http://hdl.handle.net/10400.21/8150 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
SANTOS, Sara A.; SILVA, Pedro R. da; BRITO, Jorge de – Mechanical performance evaluation of self-compacting concrete with fine and coarse recycled aggregates from the precast industry. Materials. ISSN 1996-1944. Vol. 10, N.º 8, (2017), pp. 1-15 1996-1944 10.3390/ma10080904 |
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 |
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 |
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 |
|
_version_ |
1799133431516364800 |