Effect of Hydrogel Nanocomposites on the Fresh and Hardened Properties of Cementitious Pastes
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://dx.doi.org/10.1002/masy.202000047 http://hdl.handle.net/11449/205584 |
Resumo: | Cement is a material widely used in civil construction due to its physical and chemical properties, ensuring a good performance. Some polymeric materials, such as hydrogels, have been frequently added to improve these properties and mitigate autogenous retraction in cementitious matrices. This paper aimed to evaluate the influence of polymeric hydrogel on the fresh and hardened properties of cementitious pastes (water/binder ratio = 0.35). Fresh properties results showed that the consistency and exudation indexes of these matrices decreased with an increase in the amount of hydrogel. The values of the bulk density of all cementitious matrices are around 2.1–2.2 g cm−3. Matrices containing up to 1.0% of hydrogel have satisfactory mechanical properties, reaching compressive strength of 60 MPa for 112 days of curing age. From these results, it is possible to conclude that hydrogels are promising materials for civil engineering applications, acting mainly as a filler and hydroretentor agent. |
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Repositório Institucional da UNESP |
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Effect of Hydrogel Nanocomposites on the Fresh and Hardened Properties of Cementitious Pastescivil constructionhydrogelmechanical propertiesnanoclaystructural compositeCement is a material widely used in civil construction due to its physical and chemical properties, ensuring a good performance. Some polymeric materials, such as hydrogels, have been frequently added to improve these properties and mitigate autogenous retraction in cementitious matrices. This paper aimed to evaluate the influence of polymeric hydrogel on the fresh and hardened properties of cementitious pastes (water/binder ratio = 0.35). Fresh properties results showed that the consistency and exudation indexes of these matrices decreased with an increase in the amount of hydrogel. The values of the bulk density of all cementitious matrices are around 2.1–2.2 g cm−3. Matrices containing up to 1.0% of hydrogel have satisfactory mechanical properties, reaching compressive strength of 60 MPa for 112 days of curing age. From these results, it is possible to conclude that hydrogels are promising materials for civil engineering applications, acting mainly as a filler and hydroretentor agent.Grupo de Compósitos e Nanocompósitos Híbridos (GCNH) Department of Physics and Chemistry Programa de Pós-Graduação em Ciência dos Materiais São Paulo State University (Unesp) School of EngineeringInstitute Federal of São Paulo (IFSP)Grupo de Compósitos e Nanocompósitos Híbridos (GCNH) Department of Physics and Chemistry Programa de Pós-Graduação em Ciência dos Materiais São Paulo State University (Unesp) School of EngineeringUniversidade Estadual Paulista (Unesp)Institute Federal of São Paulo (IFSP)Siqueri, Vitor A. S. [UNESP]Filho, Adhemar W. [UNESP]de Moura, Marcia R [UNESP]Aouada, Fauze A. [UNESP]2021-06-25T10:17:51Z2021-06-25T10:17:51Z2020-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1002/masy.202000047Macromolecular Symposia, v. 394, n. 1, 2020.1521-39001022-1360http://hdl.handle.net/11449/20558410.1002/masy.2020000472-s2.0-85097602817Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengMacromolecular Symposiainfo:eu-repo/semantics/openAccess2021-10-23T15:01:05Zoai:repositorio.unesp.br:11449/205584Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T15:01:05Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of Hydrogel Nanocomposites on the Fresh and Hardened Properties of Cementitious Pastes |
title |
Effect of Hydrogel Nanocomposites on the Fresh and Hardened Properties of Cementitious Pastes |
spellingShingle |
Effect of Hydrogel Nanocomposites on the Fresh and Hardened Properties of Cementitious Pastes Siqueri, Vitor A. S. [UNESP] civil construction hydrogel mechanical properties nanoclay structural composite |
title_short |
Effect of Hydrogel Nanocomposites on the Fresh and Hardened Properties of Cementitious Pastes |
title_full |
Effect of Hydrogel Nanocomposites on the Fresh and Hardened Properties of Cementitious Pastes |
title_fullStr |
Effect of Hydrogel Nanocomposites on the Fresh and Hardened Properties of Cementitious Pastes |
title_full_unstemmed |
Effect of Hydrogel Nanocomposites on the Fresh and Hardened Properties of Cementitious Pastes |
title_sort |
Effect of Hydrogel Nanocomposites on the Fresh and Hardened Properties of Cementitious Pastes |
author |
Siqueri, Vitor A. S. [UNESP] |
author_facet |
Siqueri, Vitor A. S. [UNESP] Filho, Adhemar W. [UNESP] de Moura, Marcia R [UNESP] Aouada, Fauze A. [UNESP] |
author_role |
author |
author2 |
Filho, Adhemar W. [UNESP] de Moura, Marcia R [UNESP] Aouada, Fauze A. [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Institute Federal of São Paulo (IFSP) |
dc.contributor.author.fl_str_mv |
Siqueri, Vitor A. S. [UNESP] Filho, Adhemar W. [UNESP] de Moura, Marcia R [UNESP] Aouada, Fauze A. [UNESP] |
dc.subject.por.fl_str_mv |
civil construction hydrogel mechanical properties nanoclay structural composite |
topic |
civil construction hydrogel mechanical properties nanoclay structural composite |
description |
Cement is a material widely used in civil construction due to its physical and chemical properties, ensuring a good performance. Some polymeric materials, such as hydrogels, have been frequently added to improve these properties and mitigate autogenous retraction in cementitious matrices. This paper aimed to evaluate the influence of polymeric hydrogel on the fresh and hardened properties of cementitious pastes (water/binder ratio = 0.35). Fresh properties results showed that the consistency and exudation indexes of these matrices decreased with an increase in the amount of hydrogel. The values of the bulk density of all cementitious matrices are around 2.1–2.2 g cm−3. Matrices containing up to 1.0% of hydrogel have satisfactory mechanical properties, reaching compressive strength of 60 MPa for 112 days of curing age. From these results, it is possible to conclude that hydrogels are promising materials for civil engineering applications, acting mainly as a filler and hydroretentor agent. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-01 2021-06-25T10:17:51Z 2021-06-25T10:17:51Z |
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 |
http://dx.doi.org/10.1002/masy.202000047 Macromolecular Symposia, v. 394, n. 1, 2020. 1521-3900 1022-1360 http://hdl.handle.net/11449/205584 10.1002/masy.202000047 2-s2.0-85097602817 |
url |
http://dx.doi.org/10.1002/masy.202000047 http://hdl.handle.net/11449/205584 |
identifier_str_mv |
Macromolecular Symposia, v. 394, n. 1, 2020. 1521-3900 1022-1360 10.1002/masy.202000047 2-s2.0-85097602817 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Macromolecular Symposia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1803650385656676352 |