Synthesis, Application and Effect of Hybrid Nanocomposites Based on Hydrogel and Nanoclay in Cement-Mortars

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorScience and Technology of Sao Paulo (IFSP)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.creatorWatanuki Filho, Adhemar-
Autor(es): dc.creatorHiguti, Ricardo Tokio-
Autor(es): dc.creatorMoura, Marcia Regina de-
Autor(es): dc.creatorAouada, Fauze Ahmad-
Data de aceite: dc.date.accessioned2025-08-21T19:51:17Z-
Data de disponibilização: dc.date.available2025-08-21T19:51:17Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-10-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/polym14214564-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/249374-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/249374-
Descrição: dc.descriptionHybrid nanocomposite hydrogels, as admixtures for internal curing of cementitious materials, have been widely studied. This study analyzes the effect of applying 0.5% (wt/wt cement) of pre-soaked hydrogels based on polyacrylamide, carboxymethylcellulose, and three different concentrations of Cloisite-Na+ (0, 10, and 20% wt/wt) on the fresh and hardened properties of cementitious mortars. In general, all mortars with hydrogel decreased the consistency index, mainly M20, due to the high concentration of Cloisite-Na+ that modifies the release kinect of the hydrogel. The results showed a slight variation, with an overall average value of 99% water retention in all mortars. This behavior is due to the portion of hydrogel-mortars dosage water retained to reduce the availability of free water in the mixture because this amount of water is stored, a priori, within the polymer particles. At 28 d, the mortars produced with hydrogels containing 20% of nanoclay (M20) exhibit mechanical behavior similar to the reference mortar (M), which corroborates the percentage of voids found. Scanning electron microscope images confirm that the M and M20 mortars are uniform and possess few pores or microcracks. Thus, these hybrid hydrogels have the potential to be innovative materials for water control improvements in cementitious materials technology.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionDepartment of Civil Construction Federal Institute of Education Science and Technology of Sao Paulo (IFSP), Alameda Tucurui, 164, Zona Norte-
Descrição: dc.descriptionDepartment of Electrical Engineering School of Engineering Sao Paulo State University (UNESP), Avenida Brasil, 56, Centro-
Descrição: dc.descriptionGrupo de Compósitos e Nanocompósitos Híbridos (GCNH) Department of Physics and Chemistry School of Engineering Sao Paulo State University (UNESP), Avenida Brasil, 56, Centro-
Descrição: dc.descriptionDepartment of Electrical Engineering School of Engineering Sao Paulo State University (UNESP), Avenida Brasil, 56, Centro-
Descrição: dc.descriptionGrupo de Compósitos e Nanocompósitos Híbridos (GCNH) Department of Physics and Chemistry School of Engineering Sao Paulo State University (UNESP), Avenida Brasil, 56, Centro-
Descrição: dc.descriptionCNPq: 312414/2018-8-
Descrição: dc.descriptionCNPq: 312530/2018-8-
Descrição: dc.descriptionCNPq: 316174/2021-1-
Descrição: dc.descriptionCNPq: 405680/2016-3-
Idioma: dc.languageen-
Relação: dc.relationPolymers-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectcivil construction-
Palavras-chave: dc.subjectnanocomposite-
Palavras-chave: dc.subjectpolymer absorbent-
Título: dc.titleSynthesis, Application and Effect of Hybrid Nanocomposites Based on Hydrogel and Nanoclay in Cement-Mortars-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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