Study of alternative geometry of hollow self-compacting concrete masonry blocks
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , |
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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Repositório Institucional da UNESP |
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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 |
|
_version_ |
1808129456090382336 |