Using ready-mixed mortars in concrete block structural masonry

Detalhes bibliográficos
Autor(a) principal: Matos,Paulo Ricardo de
Data de Publicação: 2020
Outros Autores: Schankoski,Rudiele Aparecida, Pilar,Ronaldo, Prudêncio Junior,Luiz Roberto
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Ambiente construído (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212020000300431
Resumo: Abstract Ready-mixed mortars have been increasingly used due to their potential for waste reductions and productivity increases. However, research regarding their use in structural masonry applications are practically non-existent. Thus, this work investigated the technical feasibility of using ready-mixed mortars with nominal compressive strengths of 6, 9 and 14 MPa and storage times of 0 and 36 hours in concrete block structural masonry. The fresh state properties of the mortars were evaluated at 0 and 36 hours through the slump test, consistency and plasticity by the Gtec test, and entrained air content. The compressive and flexural strengths of the mortars were determined at 28 days. In addition, three-row prisms were tested for compressive strength and modulus of elasticity, and four-row prisms for flexural strength in the bending test, all at 28 days. The results showed that the 6 and 9 MPa ready-mixed mortars showed satisfactory maintenance of the fresh properties from 0 to 36 hours and adequate hardened properties for both casting ages, in contrast to the 14 MPa mortar. Regarding the prism tests, the increase in storage time did not significantly affect the properties evaluated for a reliability of 95%.
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spelling Using ready-mixed mortars in concrete block structural masonryReady-mixed mortarStructural masonryConcrete blocksAbstract Ready-mixed mortars have been increasingly used due to their potential for waste reductions and productivity increases. However, research regarding their use in structural masonry applications are practically non-existent. Thus, this work investigated the technical feasibility of using ready-mixed mortars with nominal compressive strengths of 6, 9 and 14 MPa and storage times of 0 and 36 hours in concrete block structural masonry. The fresh state properties of the mortars were evaluated at 0 and 36 hours through the slump test, consistency and plasticity by the Gtec test, and entrained air content. The compressive and flexural strengths of the mortars were determined at 28 days. In addition, three-row prisms were tested for compressive strength and modulus of elasticity, and four-row prisms for flexural strength in the bending test, all at 28 days. The results showed that the 6 and 9 MPa ready-mixed mortars showed satisfactory maintenance of the fresh properties from 0 to 36 hours and adequate hardened properties for both casting ages, in contrast to the 14 MPa mortar. Regarding the prism tests, the increase in storage time did not significantly affect the properties evaluated for a reliability of 95%.Associação Nacional de Tecnologia do Ambiente Construído - ANTAC2020-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212020000300431Ambiente Construído v.20 n.3 2020reponame:Ambiente construído (Online)instname:Associação Nacional de Tecnologia do Ambiente Construído (ANTAC)instacron:ANTAC10.1590/s1678-86212020000300438info:eu-repo/semantics/openAccessMatos,Paulo Ricardo deSchankoski,Rudiele AparecidaPilar,RonaldoPrudêncio Junior,Luiz Robertoeng2020-06-30T00:00:00Zoai:scielo:S1678-86212020000300431Revistahttps://seer.ufrgs.br/ambienteconstruidohttps://old.scielo.br/oai/scielo-oai.php||ambienteconstruido@ufrgs.br1678-86211415-8876opendoar:2020-06-30T00:00Ambiente construído (Online) - Associação Nacional de Tecnologia do Ambiente Construído (ANTAC)false
dc.title.none.fl_str_mv Using ready-mixed mortars in concrete block structural masonry
title Using ready-mixed mortars in concrete block structural masonry
spellingShingle Using ready-mixed mortars in concrete block structural masonry
Matos,Paulo Ricardo de
Ready-mixed mortar
Structural masonry
Concrete blocks
title_short Using ready-mixed mortars in concrete block structural masonry
title_full Using ready-mixed mortars in concrete block structural masonry
title_fullStr Using ready-mixed mortars in concrete block structural masonry
title_full_unstemmed Using ready-mixed mortars in concrete block structural masonry
title_sort Using ready-mixed mortars in concrete block structural masonry
author Matos,Paulo Ricardo de
author_facet Matos,Paulo Ricardo de
Schankoski,Rudiele Aparecida
Pilar,Ronaldo
Prudêncio Junior,Luiz Roberto
author_role author
author2 Schankoski,Rudiele Aparecida
Pilar,Ronaldo
Prudêncio Junior,Luiz Roberto
author2_role author
author
author
dc.contributor.author.fl_str_mv Matos,Paulo Ricardo de
Schankoski,Rudiele Aparecida
Pilar,Ronaldo
Prudêncio Junior,Luiz Roberto
dc.subject.por.fl_str_mv Ready-mixed mortar
Structural masonry
Concrete blocks
topic Ready-mixed mortar
Structural masonry
Concrete blocks
description Abstract Ready-mixed mortars have been increasingly used due to their potential for waste reductions and productivity increases. However, research regarding their use in structural masonry applications are practically non-existent. Thus, this work investigated the technical feasibility of using ready-mixed mortars with nominal compressive strengths of 6, 9 and 14 MPa and storage times of 0 and 36 hours in concrete block structural masonry. The fresh state properties of the mortars were evaluated at 0 and 36 hours through the slump test, consistency and plasticity by the Gtec test, and entrained air content. The compressive and flexural strengths of the mortars were determined at 28 days. In addition, three-row prisms were tested for compressive strength and modulus of elasticity, and four-row prisms for flexural strength in the bending test, all at 28 days. The results showed that the 6 and 9 MPa ready-mixed mortars showed satisfactory maintenance of the fresh properties from 0 to 36 hours and adequate hardened properties for both casting ages, in contrast to the 14 MPa mortar. Regarding the prism tests, the increase in storage time did not significantly affect the properties evaluated for a reliability of 95%.
publishDate 2020
dc.date.none.fl_str_mv 2020-07-01
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=S1678-86212020000300431
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1678-86212020000300431
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/s1678-86212020000300438
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 Associação Nacional de Tecnologia do Ambiente Construído - ANTAC
publisher.none.fl_str_mv Associação Nacional de Tecnologia do Ambiente Construído - ANTAC
dc.source.none.fl_str_mv Ambiente Construído v.20 n.3 2020
reponame:Ambiente construído (Online)
instname:Associação Nacional de Tecnologia do Ambiente Construído (ANTAC)
instacron:ANTAC
instname_str Associação Nacional de Tecnologia do Ambiente Construído (ANTAC)
instacron_str ANTAC
institution ANTAC
reponame_str Ambiente construído (Online)
collection Ambiente construído (Online)
repository.name.fl_str_mv Ambiente construído (Online) - Associação Nacional de Tecnologia do Ambiente Construído (ANTAC)
repository.mail.fl_str_mv ||ambienteconstruido@ufrgs.br
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