Effect of Hydrogel Nanocomposites on the Fresh and Hardened Properties of Cementitious Pastes

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dc.contributor.authorSiqueri, Vitor A. S. [UNESP]
dc.contributor.authorFilho, Adhemar W. [UNESP]
dc.contributor.authorde Moura, Marcia R [UNESP]
dc.contributor.authorAouada, Fauze A. [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionInstitute Federal of São Paulo (IFSP)
dc.date.accessioned2021-06-25T10:17:51Z
dc.date.available2021-06-25T10:17:51Z
dc.date.issued2020-12-01
dc.description.abstractCement 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.en
dc.description.affiliationGrupo 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 Engineering
dc.description.affiliationInstitute Federal of São Paulo (IFSP)
dc.description.affiliationUnespGrupo 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 Engineering
dc.identifierhttp://dx.doi.org/10.1002/masy.202000047
dc.identifier.citationMacromolecular Symposia, v. 394, n. 1, 2020.
dc.identifier.doi10.1002/masy.202000047
dc.identifier.issn1521-3900
dc.identifier.issn1022-1360
dc.identifier.scopus2-s2.0-85097602817
dc.identifier.urihttp://hdl.handle.net/11449/205584
dc.language.isoeng
dc.relation.ispartofMacromolecular Symposia
dc.sourceScopus
dc.subjectcivil construction
dc.subjecthydrogel
dc.subjectmechanical properties
dc.subjectnanoclay
dc.subjectstructural composite
dc.titleEffect of Hydrogel Nanocomposites on the Fresh and Hardened Properties of Cementitious Pastesen
dc.typeArtigo

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