The suitability of five Western Australian mallee eucalypt species for wood–cement composites

Semple, Kate; Cunningham, Ross B.; Evans, Philip D.

doi:10.1016/s0926-6690(02)00012-2

Cited by 34 publications

(29 citation statements)

References 8 publications

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“…Semple et al (2002) found that inhibitory effects could be diverse when the cement was mixed with different wood species. In addition, the hydration characteristic was also investigated by measuring the hydration temperature of the mixtures in the different curing periods (Wang et al 2012).…”

Section: Introductionmentioning

confidence: 99%

Effects of Two Types of Waste Wood Species on the Hydration Characteristic of Portland Cement

Dong

Song

et al. 2016

ACT

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Despite much work on wood-cement composites, effects of wood species on the hydration of cements remain unclear until now. Thus, we herein investigated systematically effects of two typical wood species wastes on the hydration of Portland cement in this work. It was found that adding the poplar flour prominently affects the formation of the calcium silicate hydrate gel (C-S-H gel) delaying the hydration process, while the Chinese fir flour hardly retards the process due to different components. Compared with the neat cement, addition of both wood flours makes it easier to generate the ettringite. Besides, another important hydration product, calcium hydroxide Ca(OH) 2 , requires much longer time to form in the presence of both wood flours during hydration relative to the neat cement, e.g. nearly double time for the poplar-filled cement system. The findings provide useful information for extending the potential application of wood flours waste in cement composites.

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Section: Introductionmentioning

confidence: 99%

Effects of Two Types of Waste Wood Species on the Hydration Characteristic of Portland Cement

Dong

Song

et al. 2016

ACT

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“…Entre essas espécies, o maior valor de compatibilidade foi o de E. horistes, com fator-C A de apenas 70,8% (SEMPLE et al, 2002b).…”

Section: Teste De Hidrataçãounclassified

Avaliação dos efeitos de pré-tratamentos da madeira de Eucalyptus benthamii Maiden & Cambage no grau de compatibilidade com cimento Portland

et al. 2014

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RESUMO -O objetivo deste trabalho foi avaliar o efeito de cinco diferentes tipos de pré-tratamento na compatibilidade entre a madeira do Eucalyptus benthamii e o cimento Portland. A madeira foi pré-tratada com água fria, água quente, hidróxido de sódio, cloreto de cálcio ou hidróxido de cálcio. O grau de compatibilidade foi determinado através do estudo do calor de hidratação nas primeiras 24 h e pela resistência à compressão axial após 28 dias dos compósitos formados por cimento e pó de madeira na relação de peso de 13,3:1. A resistência à compressão axial após 28 dias também foi avaliada em compósitos formados com cimento e partículas de madeira na relação 2,75:1. Os resultados dos testes feitos com a madeira em pó indicaram que a adição de 3% de cloreto de cálcio é o tratamento mais eficiente para reduzir a capacidade de inibição da espécie, enquanto o tratamento do pó da madeira com hidróxido de cálcio afetou negativamente a compatibilidade. Entretanto, a combinação do aditivo cloreto de cálcio com partículas carbonatadas, pelo tratamento com hidróxido de cálcio, foi o que apresentou a maior resistência à compressão axial nos compósitos feitos na relação cimento:madeira de 2,75:1. A madeira de Eucalyptus benthamii apresentou potencial para a fabricação de painéis madeira-cimento. O uso da metodologia de carbonatação das partículas em solução de hidróxido de cálcio também é viável como pré-tratamento, independentemente dos resultados apontados pelos métodos tradicionais de medição do grau de compatibilidade.Palavras-chave: Eucalyptus benthamii; Painéis madeira-cimento; Compatibilidade. EVALUATION OF PRETREATMENT EFFECTS OF Eucalyptus benthamii

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“…These raw materials have been used as substitutes for mineral aggregates and solid woods from natural forests (Savastano et al 2000;Karade et al 2001;Almeida et al 2002;Semple et al 2002;Li et al 2004;Abdel-Kader and Darweesh 2010).…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, there are many factors that affect the properties of cement-bonded composite boards (CBCBs), such as the effect of exothermic behavior during the hydration process (Hachmi et al 1990;Semple et al 2002;Okino et al 2004). Generally, lowering the amount of inhibitory extractives diffuse into the cement paste is beneficial for the wood-cement compatibility.…”

Section: Introductionmentioning

confidence: 99%

“…A dose of 2% CaCl2 by weight of cement inhibits the adverse effects of 1% extractives of arhar stalks (Aggarwal et al 2008). Moreover, particle size and amount have great effects on the mechanical (MOR, MOE, IB) and physical (water absorption, dimensional stability) properties of CBCBs (Semple et al 2002;Aggarwal et al 2008;Ajayi and Olufemi 2011;Marzuki et al 2011;.…”

Section: Introductionmentioning

confidence: 99%

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Technological Properties of Cement-Bonded Composite Board Produced with the Main Veins of Oil Palm (Elaeis guineensis) Particles

Ayrılmış¹,

Hosseinihashemi²,

Karimi³

et al. 2017

BioResources

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The effects of main veins of palm (Elaeis guineensis) particles and the amount of CaCl2 on the mechanical and physical properties of cementbonded composite boards (CBCBs) were investigated in this study. Homogenous CBCBs were produced with main veins palm particles content at three levels of 10, 15, or 20 wt.% and CaCl2 at three levels of 0, 3, or 6 wt.%. Other manufacturing parameters consisting of pressure and time for cold-press, material dry weight, and panel dimensions were kept constant. The flexural strength, flexural modulus, internal bonding, water absorption, thickness swelling, and the thickness of CBCBs after 2 and 24 h immersion in distilled water were determined. The results indicated that increased amount of lignocellulosic particles caused a decrease in the mechanical properties of the CBCBs. The increase in calcium chloride up to 6 wt.% improved mechanical properties of the CBCBs. The panels manufactured with 10 wt.% E. guineensis particles and 6 wt.% CaCl2 showed the most favorable physical and mechanical properties.

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The suitability of five Western Australian mallee eucalypt species for wood–cement composites

Cited by 34 publications

References 8 publications

Effects of Two Types of Waste Wood Species on the Hydration Characteristic of Portland Cement

Effects of Two Types of Waste Wood Species on the Hydration Characteristic of Portland Cement

Avaliação dos efeitos de pré-tratamentos da madeira de Eucalyptus benthamii Maiden & Cambage no grau de compatibilidade com cimento Portland

Technological Properties of Cement-Bonded Composite Board Produced with the Main Veins of Oil Palm (Elaeis guineensis) Particles

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