Strand properties of Leucaena leucocephala (Lam.) de wit wood

Leucaena leucocephala (Lam.) de Wit, locally known as “petai belalang”, is widely used in Malaysia as livestock forage, reforestation material, as well as furniture and construction timber. This study investigated the properties of strand from L. leucocephala wood. Beside no study has been carried o...

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Main Authors:	Wan Abdul Rahman, Wan Mohd Nazri, Kasim, Jamaludin, Sudin, Rahim, Mohd Yunus, Nor Yuziah, Abdul Hamid, Hazandy
Format:	Article
Language:	English
Published:	Academic Journals 2011
Online Access:	http://psasir.upm.edu.my/id/eprint/23917/ http://psasir.upm.edu.my/id/eprint/23917/ http://psasir.upm.edu.my/id/eprint/23917/1/23917.pdf

id	upm-23917
recordtype	eprints
spelling	upm-239172017-11-08T03:39:02Z http://psasir.upm.edu.my/id/eprint/23917/ Strand properties of Leucaena leucocephala (Lam.) de wit wood Wan Abdul Rahman, Wan Mohd Nazri Kasim, Jamaludin Sudin, Rahim Mohd Yunus, Nor Yuziah Abdul Hamid, Hazandy Leucaena leucocephala (Lam.) de Wit, locally known as “petai belalang”, is widely used in Malaysia as livestock forage, reforestation material, as well as furniture and construction timber. This study investigated the properties of strand from L. leucocephala wood. Beside no study has been carried out on the strand properties of this species to date. Strand properties help to support the suitability and effective use of raw materials in wood composite. The main objective was to determine the strand properties of L. leucocephala as a raw material in the manufacturing of oriented strand board (OSB) under laboratory conditions. The study also aimed to determine the recovery and effect of age and strand size on bulk density, and to evaluate the effects of age and tree portion on strand properties of L. leucocephala from eight and sixteen-year-old trees. A total of 28 trees used in this study were randomly selected. Stranding process separated the fines and sorted the strands into 4 sizes; S0 (25 to 3.2 mm), S1 (19 to 12.7 mm), S2 (12.7 to 6.3 mm) and S3 (6.3 to 3.2 mm). Strand sizes of more than 25 mm and below 3.2 mm were rejected. Results showed that the recovery of strands from eight and sixteen-year-old wood was approximately 75.01 and 70.15%, respectively. Age and strand size were found to affect bulk density significantly. Strand size of S3 from sixteen-year-old gave the highest bulk density (436 g/L) while the lowest bulk density (321 g/L) was shown by strand size of S1 from eight-year-old. The correlation analysis revealed that bulk density showed a positive correlation with increase in age (r = 0.69). Bulk density also showed a positive correlation with decrease in strand size from S0 to S3 (r = 0.43). On average, strands from eight-year-old wood (65.90 mm) are longer than that of sixteen-year-old wood (57.64 mm). The average strand thickness from eight and sixteen-year-old wood was 0.90 and 1.00 mm, respectively. The interaction effects of age and strand size also showed significant interaction in area, rectangularity, slenderness ratio and aspect ratio. Academic Journals 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23917/1/23917.pdf Wan Abdul Rahman, Wan Mohd Nazri and Kasim, Jamaludin and Sudin, Rahim and Mohd Yunus, Nor Yuziah and Abdul Hamid, Hazandy (2011) Strand properties of Leucaena leucocephala (Lam.) de wit wood. African Journal of Agricultural Research, 6 (22). art. no. 8562C2038339. pp. 5181-5191. ISSN 1991-637X http://www.academicjournals.org/journal/AJAR/article-abstract/8562C2038339
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Putra Malaysia
building	UPM Institutional Repository
collection	Online Access
language	English
description	Leucaena leucocephala (Lam.) de Wit, locally known as “petai belalang”, is widely used in Malaysia as livestock forage, reforestation material, as well as furniture and construction timber. This study investigated the properties of strand from L. leucocephala wood. Beside no study has been carried out on the strand properties of this species to date. Strand properties help to support the suitability and effective use of raw materials in wood composite. The main objective was to determine the strand properties of L. leucocephala as a raw material in the manufacturing of oriented strand board (OSB) under laboratory conditions. The study also aimed to determine the recovery and effect of age and strand size on bulk density, and to evaluate the effects of age and tree portion on strand properties of L. leucocephala from eight and sixteen-year-old trees. A total of 28 trees used in this study were randomly selected. Stranding process separated the fines and sorted the strands into 4 sizes; S0 (25 to 3.2 mm), S1 (19 to 12.7 mm), S2 (12.7 to 6.3 mm) and S3 (6.3 to 3.2 mm). Strand sizes of more than 25 mm and below 3.2 mm were rejected. Results showed that the recovery of strands from eight and sixteen-year-old wood was approximately 75.01 and 70.15%, respectively. Age and strand size were found to affect bulk density significantly. Strand size of S3 from sixteen-year-old gave the highest bulk density (436 g/L) while the lowest bulk density (321 g/L) was shown by strand size of S1 from eight-year-old. The correlation analysis revealed that bulk density showed a positive correlation with increase in age (r = 0.69). Bulk density also showed a positive correlation with decrease in strand size from S0 to S3 (r = 0.43). On average, strands from eight-year-old wood (65.90 mm) are longer than that of sixteen-year-old wood (57.64 mm). The average strand thickness from eight and sixteen-year-old wood was 0.90 and 1.00 mm, respectively. The interaction effects of age and strand size also showed significant interaction in area, rectangularity, slenderness ratio and aspect ratio.
format	Article
author	Wan Abdul Rahman, Wan Mohd Nazri Kasim, Jamaludin Sudin, Rahim Mohd Yunus, Nor Yuziah Abdul Hamid, Hazandy
spellingShingle	Wan Abdul Rahman, Wan Mohd Nazri Kasim, Jamaludin Sudin, Rahim Mohd Yunus, Nor Yuziah Abdul Hamid, Hazandy Strand properties of Leucaena leucocephala (Lam.) de wit wood
author_facet	Wan Abdul Rahman, Wan Mohd Nazri Kasim, Jamaludin Sudin, Rahim Mohd Yunus, Nor Yuziah Abdul Hamid, Hazandy
author_sort	Wan Abdul Rahman, Wan Mohd Nazri
title	Strand properties of Leucaena leucocephala (Lam.) de wit wood
title_short	Strand properties of Leucaena leucocephala (Lam.) de wit wood
title_full	Strand properties of Leucaena leucocephala (Lam.) de wit wood
title_fullStr	Strand properties of Leucaena leucocephala (Lam.) de wit wood
title_full_unstemmed	Strand properties of Leucaena leucocephala (Lam.) de wit wood
title_sort	strand properties of leucaena leucocephala (lam.) de wit wood
publisher	Academic Journals
publishDate	2011
url	http://psasir.upm.edu.my/id/eprint/23917/ http://psasir.upm.edu.my/id/eprint/23917/ http://psasir.upm.edu.my/id/eprint/23917/1/23917.pdf
first_indexed	2018-09-07T14:43:58Z
last_indexed	2018-09-07T14:43:58Z
_version_	1610960274847694848

Strand properties of Leucaena leucocephala (Lam.) de wit wood

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