Influence of barite aggregate friability on mixing process and mechanical properties of concrete

The main objective of this paper is to evaluate the friability of the barite aggregate during the mixing process and its influence on the fresh and hardened properties of concrete. Three types of aggregates were studied: barite (in two states, dry and wet), limestone and EAF slag. A specific test wa...

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Autores: González-Ortega, Martha Alejandra, Pialarissi Cavalaro, Sergio Henrique|||0000-0002-9368-0898, Aguado de Cea, Antonio|||0000-0001-5542-6365
Tipo de recurso: artículo
Fecha de publicación:2015
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:2117/27587
Acceso en línea:https://hdl.handle.net/2117/27587
https://dx.doi.org/10.1016/j.conbuildmat.2014.10.040
Access Level:acceso abierto
Palabra clave:Barite
Aggregates (Building materials)
Friability
EAF slag aggregates
Mechanical properties
Àrids (Materials de construcció)
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
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spelling Influence of barite aggregate friability on mixing process and mechanical properties of concreteGonzález-Ortega, Martha AlejandraPialarissi Cavalaro, Sergio Henrique|||0000-0002-9368-0898Aguado de Cea, Antonio|||0000-0001-5542-6365BariteAggregates (Building materials)BariteFriabilityEAF slag aggregatesMechanical propertiesÀrids (Materials de construcció)Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigóThe main objective of this paper is to evaluate the friability of the barite aggregate during the mixing process and its influence on the fresh and hardened properties of concrete. Three types of aggregates were studied: barite (in two states, dry and wet), limestone and EAF slag. A specific test was designed in which each type of aggregate was exposed to several times of mixing to evaluate possible changes to the grading curves and in the surface of the aggregates grains. Moreover, four types of concretes were designed (two with barite, one with EAF slag aggregate and one with conventional limestone aggregate) to evaluate the repercussion of this phenomenon on the fresh and hardened state properties. The results show that the mixing process modifies the grading curve of the barite at a higher extent than in the case of the other aggregates. This also has repercussion in the properties of concrete, which shows increased workability as well as poorer compressive strength and elastic modulus. The observations from the study help to explain this behavior and provide important guidelines for the design, the production and the use of barite as an aggregate for concrete.Peer Reviewed20152015-01-0120152015-04-24journal articlehttp://purl.org/coar/resource_type/c_6501AMhttp://purl.org/coar/version/c_ab4af688f83e57aainfo:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/27587https://dx.doi.org/10.1016/j.conbuildmat.2014.10.040reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/275872026-05-27T15:37:01Z
dc.title.none.fl_str_mv Influence of barite aggregate friability on mixing process and mechanical properties of concrete
title Influence of barite aggregate friability on mixing process and mechanical properties of concrete
spellingShingle Influence of barite aggregate friability on mixing process and mechanical properties of concrete
González-Ortega, Martha Alejandra
Barite
Aggregates (Building materials)
Barite
Friability
EAF slag aggregates
Mechanical properties
Àrids (Materials de construcció)
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
title_short Influence of barite aggregate friability on mixing process and mechanical properties of concrete
title_full Influence of barite aggregate friability on mixing process and mechanical properties of concrete
title_fullStr Influence of barite aggregate friability on mixing process and mechanical properties of concrete
title_full_unstemmed Influence of barite aggregate friability on mixing process and mechanical properties of concrete
title_sort Influence of barite aggregate friability on mixing process and mechanical properties of concrete
dc.creator.none.fl_str_mv González-Ortega, Martha Alejandra
Pialarissi Cavalaro, Sergio Henrique|||0000-0002-9368-0898
Aguado de Cea, Antonio|||0000-0001-5542-6365
author González-Ortega, Martha Alejandra
author_facet González-Ortega, Martha Alejandra
Pialarissi Cavalaro, Sergio Henrique|||0000-0002-9368-0898
Aguado de Cea, Antonio|||0000-0001-5542-6365
author_role author
author2 Pialarissi Cavalaro, Sergio Henrique|||0000-0002-9368-0898
Aguado de Cea, Antonio|||0000-0001-5542-6365
author2_role author
author
dc.subject.none.fl_str_mv Barite
Aggregates (Building materials)
Barite
Friability
EAF slag aggregates
Mechanical properties
Àrids (Materials de construcció)
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
topic Barite
Aggregates (Building materials)
Barite
Friability
EAF slag aggregates
Mechanical properties
Àrids (Materials de construcció)
Àrees temàtiques de la UPC::Enginyeria civil::Materials i estructures::Materials i estructures de formigó
description The main objective of this paper is to evaluate the friability of the barite aggregate during the mixing process and its influence on the fresh and hardened properties of concrete. Three types of aggregates were studied: barite (in two states, dry and wet), limestone and EAF slag. A specific test was designed in which each type of aggregate was exposed to several times of mixing to evaluate possible changes to the grading curves and in the surface of the aggregates grains. Moreover, four types of concretes were designed (two with barite, one with EAF slag aggregate and one with conventional limestone aggregate) to evaluate the repercussion of this phenomenon on the fresh and hardened state properties. The results show that the mixing process modifies the grading curve of the barite at a higher extent than in the case of the other aggregates. This also has repercussion in the properties of concrete, which shows increased workability as well as poorer compressive strength and elastic modulus. The observations from the study help to explain this behavior and provide important guidelines for the design, the production and the use of barite as an aggregate for concrete.
publishDate 2015
dc.date.none.fl_str_mv 2015
2015-01-01
2015
2015-04-24
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
AM
http://purl.org/coar/version/c_ab4af688f83e57aa
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/27587
https://dx.doi.org/10.1016/j.conbuildmat.2014.10.040
url https://hdl.handle.net/2117/27587
https://dx.doi.org/10.1016/j.conbuildmat.2014.10.040
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
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
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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