Effect of fibre morphology on flocculation of fibre-cement suspensions

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorTonoli, G. H. D.-
Autor(es): dc.creatorFuente, E.-
Autor(es): dc.creatorMonte, C.-
Autor(es): dc.creatorSavastano Júnior, H.-
Autor(es): dc.creatorLahr, F. A. Rocco-
Autor(es): dc.creatorBlanco, A.-
Data de aceite: dc.date.accessioned2026-02-09T11:58:20Z-
Data de disponibilização: dc.date.available2026-02-09T11:58:20Z-
Data de envio: dc.date.issued2019-11-06-
Data de envio: dc.date.issued2019-11-06-
Data de envio: dc.date.issued2009-11-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/37562-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/pii/S0008884609001707-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1151530-
Descrição: dc.descriptionThe objective of the present research was to evaluate the effect of fibre morphology (e.g., length, width, fibrillation, broken ends, content of fines and number of fibres per gram) on flocculation and drainage properties of fibre–cement suspensions and on physical properties of the fibre–cement composites. Mechanical refining was used to change the morphological properties of Eucalyptus and Pinus pulps. Results show that the mechanical refining increased the size of the formed flocs and decreased the concentration of free small particles (with dimensions between 1 and 20 µm) as a consequence of the increased fibrillation and content of fines, which increased the capacity of the fibres to capture the mineral particles. High levels of refining were necessary for Pinus pulp to obtain cement retention values similar to those obtained by unrefined Eucalyptus pulp. This is due to the higher number of fibres per gram in Eucalyptus pulp than in Pinus pulp. Pulp refining improved the packing of the particles and, although decreased the drainage rate, it contributed to a less porous structure, which improved the microstructure of the composite.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceCement and Concrete Research-
Palavras-chave: dc.subjectDispersion-
Palavras-chave: dc.subjectPhysical properties-
Palavras-chave: dc.subjectFibre reinforcement-
Palavras-chave: dc.subjectComposite-
Título: dc.titleEffect of fibre morphology on flocculation of fibre-cement suspensions-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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