Wood–cement boards with addition of coconut husk

Souza, Maila Janaína Coêlho de; Melo, Rafael Rodolfo de; Guimarães, Mário; Carnaval, Tatiane Kelly Barbosa de Azevedo; Pimenta, Alexandre Santos; Mascarenhas, Adriano Reis Prazeres

doi:10.1080/17480272.2021.1914722

Cited by 15 publications

(9 citation statements)

References 54 publications

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“…In the scientific literature, the studies on coconut residue applications, using asobtained or pre-treated residues, have focused on the following strategies: (i) application in civil construction [108][109][110][111]; (ii) use as filtering and adsorbent materials [112][113][114][115][116][117]; (iii) in ethanol production [19,26,118]; (iv) obtention of pyrolysis products [22,[119][120][121][122]; and (v) other applications [123][124][125][126].…”

Section: From Waste To Value: Byproducts From Coconut Lignocellulosic...mentioning

confidence: 99%

“…Although the increase in coconut fiber concentration promoted a decrease in the mechanical properties (strength and stiffness) of the panels, all treatments met the market standards, indicating the potential of coconut waste as a sustainable raw material to produce panels. Souza et al [111] studied different coconut husk fiber levels (0%, 10%, 20%, 30%, 40% and 50%) to replace eucalyptus wood in producing wood-cement particleboards. From each board, the specimens were subjected to physical-mechanical tests.…”

Section: Civil Constructionsmentioning

confidence: 99%

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Coconut Waste: Discovering Sustainable Approaches to Advance a Circular Economy

Vieira,

Santana,

Jesus

et al. 2024

Sustainability

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The coconut tree (Cocos nucifera) stands as a pivotal resource in tropical regions, playing a crucial role in both subsistence and economic activities across Asia, the Pacific Islands, and South America. While the harvesting of coconut fruit is essential for producing globally utilized edible products, such as coconut oil, by small owners and large producers around the world in the food, cosmetics, and pharmaceutical industries, concerns have arisen due to the substantial amount of agro-industrial residue generated in this process, posing environmental risks if they are not properly managed. Recognizing the environmental challenges, this paper emphasizes the transformative potential inherent in coconut waste, characterized by its lignocellulosic composition rich in lignin and multifunctional groups. By delving into the historical context of coconut economic exploration and its chemical composition, this review explores the diverse applications of coconut products, focusing on the utilization and processing of residues to generate sustainable products and byproducts. Ultimately, this comprehensive review underscores the significance of repurposing coconut waste, not only to mitigate the environmental impact but also as a valuable contributor to a circular economy, promoting the use of the lignocellulosic biomass in research and bolstering its role as a raw material in the chemical and energy sectors.

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Section: From Waste To Value: Byproducts From Coconut Lignocellulosic...mentioning

confidence: 99%

Section: Civil Constructionsmentioning

confidence: 99%

Coconut Waste: Discovering Sustainable Approaches to Advance a Circular Economy

Vieira,

Santana,

Jesus

et al. 2024

Sustainability

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“…Were used wood particles treated with aluminum sulfate at a concentration of 9%. The materials for producing the panels were mixed in a concrete mixer, following the methodology applied by Souza et al (2021). The variables used to produce the panels can be seen in Table 1.…”

Section: Production Of Cement-wood Panelsmentioning

confidence: 99%

“…The panels were pressed at a constant pressure of 4.0 MPa for 10 min with a hydraulic press, according to Souza et al (2021). After pressing, the panels remained stapled for 24 hours at room temperature.…”

Section: Production Of Cement-wood Panelsmentioning

confidence: 99%

“…The most important chemical component for the present study is the quanti cation of the extractives content, since the presence in large quantities can affect the curing of the cement and, consequently, affect the interaction between the wood particle and the cement matrix, impairing the resistance of composites(Almeida et al 2013;Souza et al 2021). In the study bySouza et al (2021) observed a high amount of extractives in coconut bers (19.8%), being the main responsible for hindering and delaying…”

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confidence: 99%

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Potential of mining waste and Hevea brasiliensis wood in the production of cement-wood panels

Ferreira,

Arantes,

Borges

et al. 2023

Preprint

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The incorporation of residues in cement matrices is a viable alternative in obtaining new products for civil construction and a sustainable solution for the disposal of materials discarded by industries. In this context, the objective of the study was to evaluate the potential use of quartzite and particles of Hevea brasiliensis treated with aluminum sulfate [Al2(SO4)3] in the production of cement-wood panels. Quartzite residues and Hevea brasiliensis wood particles were obtained and characterized. The wood particles were mineralized with Al2(SO4)3 at a concentration of 9%. The panels were produced with CPV-ARI Portland cement, calcium chloride (CaCl2) as additive, treated wood particles and addition of quartzite in different proportions (0, 10, 20 and 40%), totaling four treatments. The physical-mechanical and microstructural properties of the panels were determined. The mineralization of the particles contributed to the adherence to the wood-cement. The incorporation of 20% quartzite contributed to the improvement in water absorption and thickness swelling of the panels and in the increase in the modulus of elasticity (MOE) and modulus of rupture (MOR) values. The cement-wood panels were suitable for non-structural and internal use, requiring further studies to evaluate alternative methods of replacing these residues.

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