Forest Product Industry and Engineered Wood Products: The Nigerian Experience

Ekundayo, O.O.; Arum, Chinwuba; Owoyemi, J. M.

doi:10.4314/jasem.v25i1.14

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…Forest naturally plays a key role globally in environmental services and valuable economically in the area of non-timber forest products and timber provision (Mitchel et al, 2007). In Nigeria the industry of forest product is not thriving but barely surviving as a result of numerous challenges faced by the industry (Ekundayo et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of economic implications of forest products utilization on rural households in south west Nigeria

2022

Int. J. Biosci.

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The main objective focused on the economic implications of forest products utilization on respondents. Sampling technique adopted was multi-stage sampling. Well-structured questionnaires were adopted for data collection and data analysis was done using chi-square test and descriptive statistics. Most respondents were aged and aware about forest product utilization activities in the studied area. Forest were far away five to six kilometer from rural households as results of deforestation. Timber and firewood were the main forest products. The mean annual income, food and medicinal plants for ailment treatment from non-forest products were decreasing tremendously while erosion and land degradation were on the increase. The economic impacts of forest product utilization were severe with adverse economic effects on rural households. The three null tested hypotheses were rejected. The study recommends that forest protection policies and laws should be enacted followed by strict compliance.

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Section: Introductionmentioning

confidence: 99%

Evaluation of economic implications of forest products utilization on rural households in south west Nigeria

2022

Int. J. Biosci.

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Enhancing Structural Application: Assessing the Suitability of Sawn and Glue Laminated Albizia zygia (Ayunre) Timber for Sustainable Construction

Ekundayo,

Arum,

Shittu

2024

JCEU

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Leading economies are moving towards a bio-based economy for sustainability, but Africa struggles to utilize its bio- resource such as timber for advanced engineering application due to its natural limitations. Nevertheless, glue lamination (glulam) is promising for enhancing wood for structural application. Hence, this study investigated the shear strength of glue laminated (glulam) joints of Albizia zygia (A. zygia) timber species bonded with polyurethane (PUR) adhesive and other essential physical and mechanical properties in line with relevant standards. Briefly state the methodology before results to ensure flow. The results showed that the mean density of the wood species is 519 at a mean moisture content of 12%. The wood recorded a mean volumetric shrinkage and volumetric swelling of 1.17% and 6.52% respectively. Other properties include mean bending strength at 53.89 , mean stiffness at 6106 N/mm2, compressive strength parallel to grain at 32.70 and mean tensile strength at 33.61 . Furthermore, the lap shear strength for glue laminated joints was tested according to EN 302-2013 standard and compared to control solid beams. The mean shear strength for glulam was 2.32 while it was 1.64 for the control beams. Thus, the glued joints performed better in shear than the control specimen. Finally, the residual shear strength of the joints was a mean value of 1.28 after subjecting them to accelerated aging tests (AAT). This is equivalent to 44.83% decrease of the shear strength in the dry use state. Hence, glue laminated A. zygia using PUR is not suitable for external use due to weathering effects on its shear strength. Based on the findings in this study, A. zygia is a moderately dense wood suitable for structural use but for interior application when laminated with PUR. It is shown that locally sourced A. zygia can be enhanced through glue lamination for structural joints in service class 2 according to Eurocode 5.

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Forest Product Industry and Engineered Wood Products: The Nigerian Experience

Cited by 2 publications

References 9 publications

Evaluation of economic implications of forest products utilization on rural households in south west Nigeria

Evaluation of economic implications of forest products utilization on rural households in south west Nigeria

Enhancing Structural Application: Assessing the Suitability of Sawn and Glue Laminated Albizia zygia (Ayunre) Timber for Sustainable Construction

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