Study of alternative geometry of hollow self-compacting concrete masonry blocks

Detalhes bibliográficos
Autor(a) principal: Bortoletto, M. [UNESP]
Data de Publicação: 2020
Outros Autores: Albuquerque, M. C.F. [UNESP], Spósito, F. A., Silva, R. G. [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://hdl.handle.net/11449/222780
Resumo: To evaluate the geometrical influence of new types of hollow concrete blocks, six different geometries were investigated using self-consolidating concrete to fabricate the blocks. The cell shapes studied were circular, hexagonal and rectangular comprising a total of six different net areas. Mechanical tests of the blocks and masonry prisms constructed using the blocks were performed, as well as a finite element analysis of the thermal resistance of the blocks. The fresh and hardened properties of self-compacting concrete were evaluated. The results showed that the cell shapes influenced the block compressive strength capacity. The block with the circular cell had the highest axial compressive strength. Prisms with circular and hexagonal cells had higher axial compressive strength than the prisms with rectangular cells. Larger longitudinal wall thicknesses of blocks provided a greater capacity to absorb deformations, except for the blocks with rectangular cells, which had low strength and deformation capacity. The linear relationship between the increase in cell area as a function of inner temperature caused a reduction of heat transfer in the inner and outer surfaces as the cell area increased. In general, this study demonstrated that the cell geometry influenced the investigated properties, but also showed the possibility of manufacturing blocks using self-consolidating concrete.
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spelling Study of alternative geometry of hollow self-compacting concrete masonry blocksCompressive strengthConcrete blocksGeometryHeat transferSelf-compacting concreteTo evaluate the geometrical influence of new types of hollow concrete blocks, six different geometries were investigated using self-consolidating concrete to fabricate the blocks. The cell shapes studied were circular, hexagonal and rectangular comprising a total of six different net areas. Mechanical tests of the blocks and masonry prisms constructed using the blocks were performed, as well as a finite element analysis of the thermal resistance of the blocks. The fresh and hardened properties of self-compacting concrete were evaluated. The results showed that the cell shapes influenced the block compressive strength capacity. The block with the circular cell had the highest axial compressive strength. Prisms with circular and hexagonal cells had higher axial compressive strength than the prisms with rectangular cells. Larger longitudinal wall thicknesses of blocks provided a greater capacity to absorb deformations, except for the blocks with rectangular cells, which had low strength and deformation capacity. The linear relationship between the increase in cell area as a function of inner temperature caused a reduction of heat transfer in the inner and outer surfaces as the cell area increased. In general, this study demonstrated that the cell geometry influenced the investigated properties, but also showed the possibility of manufacturing blocks using self-consolidating concrete.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Civil Engineering Department São Paulo State University (UNESP)Department of Biosystems Engineering University of São Paulo (USP)Civil Engineering Department São Paulo State University (UNESP)Universidade Estadual Paulista (UNESP)Universidade de São Paulo (USP)Bortoletto, M. [UNESP]Albuquerque, M. C.F. [UNESP]Spósito, F. A.Silva, R. G. [UNESP]2022-04-28T19:46:39Z2022-04-28T19:46:39Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article36-49Masonry International, v. 33, n. 2, p. 36-49, 2020.2398-757X0950-2289http://hdl.handle.net/11449/2227802-s2.0-85118377537Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMasonry Internationalinfo:eu-repo/semantics/openAccess2022-04-28T19:46:39Zoai:repositorio.unesp.br:11449/222780Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:43:54.911584Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Study of alternative geometry of hollow self-compacting concrete masonry blocks
title Study of alternative geometry of hollow self-compacting concrete masonry blocks
spellingShingle Study of alternative geometry of hollow self-compacting concrete masonry blocks
Bortoletto, M. [UNESP]
Compressive strength
Concrete blocks
Geometry
Heat transfer
Self-compacting concrete
title_short Study of alternative geometry of hollow self-compacting concrete masonry blocks
title_full Study of alternative geometry of hollow self-compacting concrete masonry blocks
title_fullStr Study of alternative geometry of hollow self-compacting concrete masonry blocks
title_full_unstemmed Study of alternative geometry of hollow self-compacting concrete masonry blocks
title_sort Study of alternative geometry of hollow self-compacting concrete masonry blocks
author Bortoletto, M. [UNESP]
author_facet Bortoletto, M. [UNESP]
Albuquerque, M. C.F. [UNESP]
Spósito, F. A.
Silva, R. G. [UNESP]
author_role author
author2 Albuquerque, M. C.F. [UNESP]
Spósito, F. A.
Silva, R. G. [UNESP]
author2_role author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (UNESP)
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Bortoletto, M. [UNESP]
Albuquerque, M. C.F. [UNESP]
Spósito, F. A.
Silva, R. G. [UNESP]
dc.subject.por.fl_str_mv Compressive strength
Concrete blocks
Geometry
Heat transfer
Self-compacting concrete
topic Compressive strength
Concrete blocks
Geometry
Heat transfer
Self-compacting concrete
description To evaluate the geometrical influence of new types of hollow concrete blocks, six different geometries were investigated using self-consolidating concrete to fabricate the blocks. The cell shapes studied were circular, hexagonal and rectangular comprising a total of six different net areas. Mechanical tests of the blocks and masonry prisms constructed using the blocks were performed, as well as a finite element analysis of the thermal resistance of the blocks. The fresh and hardened properties of self-compacting concrete were evaluated. The results showed that the cell shapes influenced the block compressive strength capacity. The block with the circular cell had the highest axial compressive strength. Prisms with circular and hexagonal cells had higher axial compressive strength than the prisms with rectangular cells. Larger longitudinal wall thicknesses of blocks provided a greater capacity to absorb deformations, except for the blocks with rectangular cells, which had low strength and deformation capacity. The linear relationship between the increase in cell area as a function of inner temperature caused a reduction of heat transfer in the inner and outer surfaces as the cell area increased. In general, this study demonstrated that the cell geometry influenced the investigated properties, but also showed the possibility of manufacturing blocks using self-consolidating concrete.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
2022-04-28T19:46:39Z
2022-04-28T19:46:39Z
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 Masonry International, v. 33, n. 2, p. 36-49, 2020.
2398-757X
0950-2289
http://hdl.handle.net/11449/222780
2-s2.0-85118377537
identifier_str_mv Masonry International, v. 33, n. 2, p. 36-49, 2020.
2398-757X
0950-2289
2-s2.0-85118377537
url http://hdl.handle.net/11449/222780
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Masonry International
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 36-49
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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