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dc.creatorTonoli, G. H. D.-
dc.creatorRodrigues Filho, U. P.-
dc.creatorSavastano Júnior, H.-
dc.creatorBras, J.-
dc.creatorBelgacem, M. N.-
dc.creatorLahr, F. A. Rocco-
dc.date.accessioned2019-11-07T12:36:21Z-
dc.date.available2019-11-07T12:36:21Z-
dc.date.issued2009-12-
dc.identifier.citationTONOLI, G. H. D. et al. Cellulose modified fibres in cement based composites. Composites Part A: Applied Science and Manufacturing, [S.l.], v. 40, n. 12, p. 2046-2053, Dec. 2009.pt_BR
dc.identifier.urihttps://www.sciencedirect.com/science/article/pii/S1359835X09002917pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/37563-
dc.description.abstractThe objective of the present work is to evaluate the effect of surface modification of cellulose pulp fibres on the mechanical and microstructure of fibre–cement composites. Surface modification of the cellulose pulps was performed with Methacryloxypropyltri-methoxysilane (MPTS) and Aminopropyltri-ethoxysilane (APTS) in an attempt to improve their durability into fibre–cement composites. The surface modification showed significant influence on the microstructure of the composites on the fibre–matrix interface and in the mineralization of the fibre lumen as seen by scanning electron microscopy (SEM) with back-scattered electron (BSE) detector. Accelerated ageing cycles decreased modulus of rupture (MOR) and toughness (TE) of the composites. Composites reinforced with MPTS-modified fibres presented fibres free from cement hydration products, while APTS-modified fibres presented accelerated mineralization. Higher mineralization of the fibres led to higher embrittlement of the composite after accelerated ageing cycles. These observations are therefore very useful for understanding the mechanisms of degradation of fibre–cement composites.pt_BR
dc.languageen_USpt_BR
dc.publisherElsevierpt_BR
dc.rightsrestrictAccesspt_BR
dc.sourceComposites Part A: Applied Science and Manufacturingpt_BR
dc.subjectFibrespt_BR
dc.subjectFibre/matrix bondpt_BR
dc.subjectMicrostructurespt_BR
dc.subjectSurface treatmentpt_BR
dc.titleCellulose modified fibres in cement based compositespt_BR
dc.typeArtigopt_BR
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