Effect of colloidal silica on the mechanical properties of fiber-cement reinforced with cellulosic fibers

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorSantos, Sergio Francisco-
Autor(es): dc.creatorRodrigues, José de Anchieta-
Autor(es): dc.creatorTonoli, Gustavo Henrique Denzin-
Autor(es): dc.creatorAlmeida, Alessandra Etuko Feuzicana de Souza-
Autor(es): dc.creatorSavastano Júnior, Holmer-
Data de aceite: dc.date.accessioned2026-02-09T12:54:15Z-
Data de disponibilização: dc.date.available2026-02-09T12:54:15Z-
Data de envio: dc.date.issued2019-12-04-
Data de envio: dc.date.issued2019-12-04-
Data de envio: dc.date.issued2014-11-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/37996-
Fonte completa do material: dc.identifierhttps://link.springer.com/article/10.1007/s10853-014-8455-1-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1170590-
Descrição: dc.descriptionThe effect of colloidal silica on the hydration reaction of the Portland cement system and its effect on the resulting mechanical properties are not completely understood. Silica nanoparticles can affect the behavior and performance of fiber–cement, such as the calcium–silicate–hydrate gel of the matrix and the fiber–matrix interface bonding. The main objective of this study is to evaluate the effects of various contents of colloidal silica (0, 1.5, 3, 5, and 10 % w/w) on the microstructure and mechanical performance of cement composites reinforced with cellulosic pulp. Fiber–cement composites with unbleached eucalyptus Kraft pulp as the micro-fiber reinforcement were produced by the slurry dewatering technique followed by pressing. The average values of the modulus of rupture of the fiber–cement decreased with increasing colloidal silica content. However, the pullout of the fibers increased significantly in the fiber–cement composites with additions between 3 and 10 % w/w of colloidal silica suspension, as indicated in the scanning electron microscopy images and by the improvement in the energy of fracture values.-
Idioma: dc.languageen-
Publicador: dc.publisherSpringer-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceJournal of Materials Science-
Palavras-chave: dc.subjectSilica fume-
Palavras-chave: dc.subjectCalcium hydroxide-
Palavras-chave: dc.subjectOrdinary Portland Cement-
Palavras-chave: dc.subjectColloidal silica-
Palavras-chave: dc.subjectCement composite-
Título: dc.titleEffect of colloidal silica on the mechanical properties of fiber-cement reinforced with cellulosic fibers-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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