Supercritical carbonation treatment on extruded fibre-cement reinforced with vegetable fibres

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MetadadosDescriçãoIdioma
Autor(es): dc.creatorSantos, Sérgio F.-
Autor(es): dc.creatorSchmidt, Rene-
Autor(es): dc.creatorAlmeida, Alessandra E. F. S.-
Autor(es): dc.creatorTonoli, Gustavo H. D.-
Autor(es): dc.creatorSavastano Júnior, Holmer-
Data de aceite: dc.date.accessioned2026-02-09T11:23:03Z-
Data de disponibilização: dc.date.available2026-02-09T11:23:03Z-
Data de envio: dc.date.issued2019-12-04-
Data de envio: dc.date.issued2019-12-04-
Data de envio: dc.date.issued2015-02-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/37997-
Fonte completa do material: dc.identifierhttps://www.sciencedirect.com/science/article/pii/S0958946514002108#!-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1139736-
Descrição: dc.descriptionThe objective of this research was to evaluate the effects of supercritical carbonation treatment for 2 h on the main hydrated phases of the cement matrix (calcium hydroxide and calcium silicate hydrate) and durability of extruded fibre–cement reinforced with bleached eucalyptus pulp and residual sisal chopped fibres. The thermal analysis, bulk density, porosity, physical characteristics and mechanical performance were evaluated before and after 200 soaking and drying cycles for following the degradation of the material under accelerated ageing conditions. The higher carbonation rate during the early stage of curing period decreased the porosity by sealing the opened pores around vegetable fibres and, consequently, led to lower water absorption and higher bulk density in the composites. The average MOR-values showed a significant increase in the case of the supercritical carbonated extruded fibre–cement in the initial age and after accelerated ageing. Besides, after 200 soaking and drying ageing cycles, the average values of energy of fracture (γWoF) of the carbonated composites decrease only 28%, showing evidences of the preservation of microstructural stability and toughness of the fibre–cement composites after supercritical CO2 treatment.-
Idioma: dc.languageen-
Publicador: dc.publisherElsevier-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceCement and Concrete Composites-
Palavras-chave: dc.subjectSisal fibre-
Palavras-chave: dc.subjectEucalyptus pulp-
Palavras-chave: dc.subjectExtrusion-
Palavras-chave: dc.subjectEnergy of fracture-
Palavras-chave: dc.subjectFracture toughness-
Palavras-chave: dc.subjectSupercritical carbon dioxide-
Título: dc.titleSupercritical carbonation treatment on extruded fibre-cement reinforced with vegetable fibres-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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