Influence of steam curing on the pore structures and mechanical properties of fly-ash high performance concrete prepared with recycled aggregates

In this research work, High Performance Concrete (HPC) was produced employing 30% of fly ash and 70% of Portland cement as binder materials. Three types of coarse recycled concrete aggregates (RCA) sourced from medium to high strength concretes were employed as 100% replacement of natural aggregates...

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Detalles Bibliográficos
Autores: Gonzàlez Corominas, Andreu|||0000-0001-5947-740X, Etxeberria Larrañaga, Miren|||0000-0003-2208-6207, Poon, Chi-Sun
Tipo de recurso: artículo
Fecha de publicación:2016
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/88577
Acceso en línea:https://hdl.handle.net/2117/88577
https://dx.doi.org/10.1016/j.cemconcomp.2016.05.010
Access Level:acceso abierto
Palabra clave:Aggregates (Building materials)--Recycling
Recycled aggregate concrete
High performance concrete
Steam curing
Compressive strength
Porosity
MIP
Àrids (Materials de construcció) -- Reciclatge
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
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spelling Influence of steam curing on the pore structures and mechanical properties of fly-ash high performance concrete prepared with recycled aggregatesGonzàlez Corominas, Andreu|||0000-0001-5947-740XEtxeberria Larrañaga, Miren|||0000-0003-2208-6207Poon, Chi-SunAggregates (Building materials)--RecyclingRecycled aggregate concreteHigh performance concreteSteam curingCompressive strengthPorosityMIPÀrids (Materials de construcció) -- ReciclatgeÀrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigóIn this research work, High Performance Concrete (HPC) was produced employing 30% of fly ash and 70% of Portland cement as binder materials. Three types of coarse recycled concrete aggregates (RCA) sourced from medium to high strength concretes were employed as 100% replacement of natural aggregates for recycled aggregate concrete (RAC) production. The specimens of four types of concretes (natural aggregate concrete (NAC) and three RACs) were subjected to initial steam curing besides the conventional curing process. The use of high quality RCA (>100 MPa) in HPC produced RAC with similar or improved pore structures, compressive and splitting tensile strengths, and modulus of elasticity to those of NAC. It was determined that the mechanical and physical behaviour of HPC decreased with the reduction of RCA quality. Nonetheless steam-cured RACs had greater reductions of porosity up to 90 days than NAC, which led to lower capillary pore volume.Peer Reviewed20162016-08-0120162016-07-06journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/88577https://dx.doi.org/10.1016/j.cemconcomp.2016.05.010reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/885772026-05-27T15:37:01Z
dc.title.none.fl_str_mv Influence of steam curing on the pore structures and mechanical properties of fly-ash high performance concrete prepared with recycled aggregates
title Influence of steam curing on the pore structures and mechanical properties of fly-ash high performance concrete prepared with recycled aggregates
spellingShingle Influence of steam curing on the pore structures and mechanical properties of fly-ash high performance concrete prepared with recycled aggregates
Gonzàlez Corominas, Andreu|||0000-0001-5947-740X
Aggregates (Building materials)--Recycling
Recycled aggregate concrete
High performance concrete
Steam curing
Compressive strength
Porosity
MIP
Àrids (Materials de construcció) -- Reciclatge
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
title_short Influence of steam curing on the pore structures and mechanical properties of fly-ash high performance concrete prepared with recycled aggregates
title_full Influence of steam curing on the pore structures and mechanical properties of fly-ash high performance concrete prepared with recycled aggregates
title_fullStr Influence of steam curing on the pore structures and mechanical properties of fly-ash high performance concrete prepared with recycled aggregates
title_full_unstemmed Influence of steam curing on the pore structures and mechanical properties of fly-ash high performance concrete prepared with recycled aggregates
title_sort Influence of steam curing on the pore structures and mechanical properties of fly-ash high performance concrete prepared with recycled aggregates
dc.creator.none.fl_str_mv Gonzàlez Corominas, Andreu|||0000-0001-5947-740X
Etxeberria Larrañaga, Miren|||0000-0003-2208-6207
Poon, Chi-Sun
author Gonzàlez Corominas, Andreu|||0000-0001-5947-740X
author_facet Gonzàlez Corominas, Andreu|||0000-0001-5947-740X
Etxeberria Larrañaga, Miren|||0000-0003-2208-6207
Poon, Chi-Sun
author_role author
author2 Etxeberria Larrañaga, Miren|||0000-0003-2208-6207
Poon, Chi-Sun
author2_role author
author
dc.subject.none.fl_str_mv Aggregates (Building materials)--Recycling
Recycled aggregate concrete
High performance concrete
Steam curing
Compressive strength
Porosity
MIP
Àrids (Materials de construcció) -- Reciclatge
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
topic Aggregates (Building materials)--Recycling
Recycled aggregate concrete
High performance concrete
Steam curing
Compressive strength
Porosity
MIP
Àrids (Materials de construcció) -- Reciclatge
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
description In this research work, High Performance Concrete (HPC) was produced employing 30% of fly ash and 70% of Portland cement as binder materials. Three types of coarse recycled concrete aggregates (RCA) sourced from medium to high strength concretes were employed as 100% replacement of natural aggregates for recycled aggregate concrete (RAC) production. The specimens of four types of concretes (natural aggregate concrete (NAC) and three RACs) were subjected to initial steam curing besides the conventional curing process. The use of high quality RCA (>100 MPa) in HPC produced RAC with similar or improved pore structures, compressive and splitting tensile strengths, and modulus of elasticity to those of NAC. It was determined that the mechanical and physical behaviour of HPC decreased with the reduction of RCA quality. Nonetheless steam-cured RACs had greater reductions of porosity up to 90 days than NAC, which led to lower capillary pore volume.
publishDate 2016
dc.date.none.fl_str_mv 2016
2016-08-01
2016
2016-07-06
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/88577
https://dx.doi.org/10.1016/j.cemconcomp.2016.05.010
url https://hdl.handle.net/2117/88577
https://dx.doi.org/10.1016/j.cemconcomp.2016.05.010
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2

http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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