2017
DOI: 10.1590/0103-8478cr20140250
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Particle size and lime addiction on properties of wood-cement composites produced by the method of densification by vibro compaction

Abstract: This paper aimed to evaluate the effects of particle size and the use of lime as a pretreatment of Pinus spp wood particles on the production of wood-cement composites by vibro-compaction densification. Specimens for internal bond and static bending were produced with two different particle sizes: G1, particles that pass through a 4mm screen and were retained at 2mm screen, and G2, particles that pass through a 2mm screen and were retained at 0.84mm screen. The use of lime was also tested in two different meth… Show more

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Cited by 4 publications
(4 citation statements)
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“…Our WCC samples had higher internal bonding than WCC produced with Pinus spp at a wood:cement ratio of 1:1 using a similar method and densities (Parchen et al 2016), but lower bonding than vibro-compacted, similar density WCC produced with Pinus taeda at a wood:cement ratio of 1:4 (Castro and Iwakiri 2014). Our WCC samples also had higher MOR and MOE values than composites produced with Eucalyptus saligna (Castro et al 2015) and Pinus spp (Parchen et al 2016;Azambuja et al 2017). Composites produced with E. coriaceae had similar MOR to WCC produced with the traditional press method with Hymenaea courbaril, another Amazonian timber species, (Macedo et al 2012).…”
Section: Density (Kg M -3 )mentioning
confidence: 61%
“…Our WCC samples had higher internal bonding than WCC produced with Pinus spp at a wood:cement ratio of 1:1 using a similar method and densities (Parchen et al 2016), but lower bonding than vibro-compacted, similar density WCC produced with Pinus taeda at a wood:cement ratio of 1:4 (Castro and Iwakiri 2014). Our WCC samples also had higher MOR and MOE values than composites produced with Eucalyptus saligna (Castro et al 2015) and Pinus spp (Parchen et al 2016;Azambuja et al 2017). Composites produced with E. coriaceae had similar MOR to WCC produced with the traditional press method with Hymenaea courbaril, another Amazonian timber species, (Macedo et al 2012).…”
Section: Density (Kg M -3 )mentioning
confidence: 61%
“…As duas formas de aplicação minimizam o efeito inibidor da madeira, sendo que a aplicação direta do hidróxido de cálcio pode ainda ter um efeito positivo nas propriedades físico-mecânicas dos compósitos após a cura (AZAMBUJA et al, 2017).…”
Section: �1�5 Solução Alcalinaunclassified
“…Assim, o tamanho da partícula pode passar a ser um fator limitante, pois partículas grandes têm dificuldade de vibrar e assentar, gerando compósitos menos densificados. Por outro lado, partículas pequenas possuem maior área superficial e necessitam de maior quantidade de cimento para o revestimento total (AZAMBUJA et al, 2017).…”
Section: Geometria Das Partículas De Madeiraunclassified
“…Em relação as propriedades mecânicas, os valores médios para a ligação interna foram superiores a de CMC vibro-compactados que utilizaram partículas de maiores dimensões [6,7,30]. PARCHEN et al [6] encontraram valores inferiores para a propriedade de ligação interna (entre 0,09 e 0,13 MPa) para compósitos produzidos com metodologia e densidade final semelhante ao deste estudo, porém com relação madeira:cimento de 1:1.…”
Section: Propriedades Físico-mecânicas Dos Cmcunclassified