Effects of pre-wetting aggregate on the properties of mortars made with recycled concrete and lightweight aggregates

Detalhes bibliográficos
Autor(a) principal: Jochem,Lidiane Fernanda
Data de Publicação: 2019
Outros Autores: Aponte,Diego, Bizinotto,Marilda Barra, Rocha,Janaíde Cavalcante
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Matéria (Rio de Janeiro. Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762019000200322
Resumo: ABSTRACT This paper examines the suitability of partially replacing natural aggregate, sand, (NA) with recycled concrete aggregate (RCA) or lightweight aggregate (LWA) in mortars, under the hypothesis that pre-wetting aggregates would produce improvement in mortar properties. Fresh mortar properties such as density, entrained air content, consistency and heat of hydration, as well as hardened mortar properties such as dry density, compressive and flexural strength, and dimensional instability at 0% and 100% saturation were determined. The results show that mortars made with natural aggregate (75%) and recycled concrete aggregate (25%) have similar properties to mortars made with only natural aggregate (100%) and that pre-wetting the aggregates does not influence the properties of mortars significantly. Therefore, partial replacement with recycled concrete aggregate is a viable alternative for producing mortar.
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spelling Effects of pre-wetting aggregate on the properties of mortars made with recycled concrete and lightweight aggregatespre-wettingrecycled concrete aggregatelightweight aggregatemortarssustainabilityABSTRACT This paper examines the suitability of partially replacing natural aggregate, sand, (NA) with recycled concrete aggregate (RCA) or lightweight aggregate (LWA) in mortars, under the hypothesis that pre-wetting aggregates would produce improvement in mortar properties. Fresh mortar properties such as density, entrained air content, consistency and heat of hydration, as well as hardened mortar properties such as dry density, compressive and flexural strength, and dimensional instability at 0% and 100% saturation were determined. The results show that mortars made with natural aggregate (75%) and recycled concrete aggregate (25%) have similar properties to mortars made with only natural aggregate (100%) and that pre-wetting the aggregates does not influence the properties of mortars significantly. Therefore, partial replacement with recycled concrete aggregate is a viable alternative for producing mortar.Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiroem cooperação com a Associação Brasileira do Hidrogênio, ABH22019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762019000200322Matéria (Rio de Janeiro) v.24 n.2 2019reponame:Matéria (Rio de Janeiro. Online)instname:Matéria (Rio de Janeiro. Online)instacron:RLAM10.1590/s1517-707620190002.0677info:eu-repo/semantics/openAccessJochem,Lidiane FernandaAponte,DiegoBizinotto,Marilda BarraRocha,Janaíde Cavalcanteeng2020-07-22T00:00:00Zoai:scielo:S1517-70762019000200322Revistahttp://www.materia.coppe.ufrj.br/https://old.scielo.br/oai/scielo-oai.php||materia@labh2.coppe.ufrj.br1517-70761517-7076opendoar:2020-07-22T00:00Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)false
dc.title.none.fl_str_mv Effects of pre-wetting aggregate on the properties of mortars made with recycled concrete and lightweight aggregates
title Effects of pre-wetting aggregate on the properties of mortars made with recycled concrete and lightweight aggregates
spellingShingle Effects of pre-wetting aggregate on the properties of mortars made with recycled concrete and lightweight aggregates
Jochem,Lidiane Fernanda
pre-wetting
recycled concrete aggregate
lightweight aggregate
mortars
sustainability
title_short Effects of pre-wetting aggregate on the properties of mortars made with recycled concrete and lightweight aggregates
title_full Effects of pre-wetting aggregate on the properties of mortars made with recycled concrete and lightweight aggregates
title_fullStr Effects of pre-wetting aggregate on the properties of mortars made with recycled concrete and lightweight aggregates
title_full_unstemmed Effects of pre-wetting aggregate on the properties of mortars made with recycled concrete and lightweight aggregates
title_sort Effects of pre-wetting aggregate on the properties of mortars made with recycled concrete and lightweight aggregates
author Jochem,Lidiane Fernanda
author_facet Jochem,Lidiane Fernanda
Aponte,Diego
Bizinotto,Marilda Barra
Rocha,Janaíde Cavalcante
author_role author
author2 Aponte,Diego
Bizinotto,Marilda Barra
Rocha,Janaíde Cavalcante
author2_role author
author
author
dc.contributor.author.fl_str_mv Jochem,Lidiane Fernanda
Aponte,Diego
Bizinotto,Marilda Barra
Rocha,Janaíde Cavalcante
dc.subject.por.fl_str_mv pre-wetting
recycled concrete aggregate
lightweight aggregate
mortars
sustainability
topic pre-wetting
recycled concrete aggregate
lightweight aggregate
mortars
sustainability
description ABSTRACT This paper examines the suitability of partially replacing natural aggregate, sand, (NA) with recycled concrete aggregate (RCA) or lightweight aggregate (LWA) in mortars, under the hypothesis that pre-wetting aggregates would produce improvement in mortar properties. Fresh mortar properties such as density, entrained air content, consistency and heat of hydration, as well as hardened mortar properties such as dry density, compressive and flexural strength, and dimensional instability at 0% and 100% saturation were determined. The results show that mortars made with natural aggregate (75%) and recycled concrete aggregate (25%) have similar properties to mortars made with only natural aggregate (100%) and that pre-wetting the aggregates does not influence the properties of mortars significantly. Therefore, partial replacement with recycled concrete aggregate is a viable alternative for producing mortar.
publishDate 2019
dc.date.none.fl_str_mv 2019-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762019000200322
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-70762019000200322
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1517-707620190002.0677
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
em cooperação com a Associação Brasileira do Hidrogênio, ABH2
publisher.none.fl_str_mv Laboratório de Hidrogênio, Coppe - Universidade Federal do Rio de Janeiro
em cooperação com a Associação Brasileira do Hidrogênio, ABH2
dc.source.none.fl_str_mv Matéria (Rio de Janeiro) v.24 n.2 2019
reponame:Matéria (Rio de Janeiro. Online)
instname:Matéria (Rio de Janeiro. Online)
instacron:RLAM
instname_str Matéria (Rio de Janeiro. Online)
instacron_str RLAM
institution RLAM
reponame_str Matéria (Rio de Janeiro. Online)
collection Matéria (Rio de Janeiro. Online)
repository.name.fl_str_mv Matéria (Rio de Janeiro. Online) - Matéria (Rio de Janeiro. Online)
repository.mail.fl_str_mv ||materia@labh2.coppe.ufrj.br
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