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Campo DC | Valor | Idioma |
---|---|---|
dc.creator | Fioroni, Carlos Alexandre | - |
dc.creator | Innocentini, Murilo Daniel de Mello | - |
dc.creator | Los Dolores, Gonzalo Mármol de | - |
dc.creator | Tonoli, Gustavo Henrique Denzin | - |
dc.creator | Paula, Gustavo Rocha de Paula | - |
dc.creator | Savastano Junior, Holmer | - |
dc.date.accessioned | 2021-08-23T18:39:42Z | - |
dc.date.available | 2021-08-23T18:39:42Z | - |
dc.date.issued | 2020-11 | - |
dc.identifier.citation | FIORONI, C. A. et al. Cement-based corrugated sheets reinforced with polypropylene fibres subjected to a high-performance curing method. Construction and Building Materials, [S. I.], v. 262, Nov. 2020. DOI: https://doi.org/10.1016/j.conbuildmat.2020.120791. | pt_BR |
dc.identifier.uri | https://doi.org/10.1016/j.conbuildmat.2020.120791 | pt_BR |
dc.identifier.uri | http://repositorio.ufla.br/jspui/handle/1/46928 | - |
dc.description.abstract | This work proposes and evaluates a curing method based on the accelerated carbonation (AC) for cement-based corrugated sheets reinforced with polypropylene (PP) fibres produced by the Hatschek process. These corrugated sheets were experimentally evaluated in order to identify how the AC affects the fibre-cement composites. The obtained performance was compared with air-cured corrugated sheets reinforced with PP fibres and air-cured corrugated sheets reinforced with polyvinyl alcohol (PVA) fibres. The AC conferred a high carbonation degree (86%) increasing bulk density (13%) and decreasing apparent porosity (22%) and water absorption (28%) by means of calcium carbonate formation. The modulus of elasticity (10.7 GPa) and limit of proportionality (8.3 MPa) doubled in comparison with air-cured corrugated sheets. The Darcian (k1) and non-Darcian (k2) permeability coefficients were retrieved from the Forchheimer’s equation. The clogging of the permeable pores caused by the AC resulted in a reduction of 49% and 95% in k1 and k2, respectively. The drying shrinkage halved (1 mm/m) by the influence of AC which clogged pores with carbonates in the range 0.06–1.50 µm. Water-tightness test and its evaluation through digital image analysis showed a reduced moistened area in the AC cured corrugated sheets (22% lower) and enabled the identification of the cracks, which have a great influence on water tightness and permeability. The AC mitigated defects and conferred lower permeability and higher physical–mechanical performance in comparison to the air-cured PP and PVA reinforced corrugated sheets. | pt_BR |
dc.language | en | pt_BR |
dc.publisher | Elsevier | pt_BR |
dc.rights | restrictAccess | pt_BR |
dc.source | Construction and Building Materials | pt_BR |
dc.subject | Fibre-cement | pt_BR |
dc.subject | Polymeric fibres | pt_BR |
dc.subject | Accelerated carbonation | pt_BR |
dc.subject | Carbonation degree | pt_BR |
dc.subject | Permeability | pt_BR |
dc.subject | Commercial corrugated sheets | pt_BR |
dc.subject | Capillary pores | pt_BR |
dc.subject | Drying shrinkage | pt_BR |
dc.subject | Dimensional stability | pt_BR |
dc.subject | Fibrocimento | pt_BR |
dc.subject | Fibras poliméricas | pt_BR |
dc.subject | Carbonatação acelerada | pt_BR |
dc.subject | Grau de carbonatação | pt_BR |
dc.subject | Papel corrugado | pt_BR |
dc.title | Cement-based corrugated sheets reinforced with polypropylene fibres subjected to a high-performance curing method | pt_BR |
dc.type | Artigo | pt_BR |
Aparece nas coleções: | DCF - Artigos publicados em periódicos |
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