Properties and Utilisation of Tropical Bamboo (Gigantochloa Scortechinii), for Structural Plywood

The objectives of these study were to determine the physical and mechanical properties of 4-year-old Gigantochloa scortechinii culms and to evaluate the properties of plywood manufactured from the bamboo culms. Bamboo culms were split using hand splitter to produce splits. Strips were prepared by...

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Main Author:	Uyup, Mohd Khairul Anwar
Format:	Thesis
Language:	English English
Published:	2003
Subjects:	Bamboo - Case studies Plywood - Case studies
Online Access:	http://psasir.upm.edu.my/id/eprint/10144/1/FH_2003_11.pdf
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id	my-upm-ir.10144
record_format	uketd_dc
spelling	my-upm-ir.101442024-03-18T00:59:52Z Properties and Utilisation of Tropical Bamboo (Gigantochloa Scortechinii), for Structural Plywood 2003-03 Uyup, Mohd Khairul Anwar The objectives of these study were to determine the physical and mechanical properties of 4-year-old Gigantochloa scortechinii culms and to evaluate the properties of plywood manufactured from the bamboo culms. Bamboo culms were split using hand splitter to produce splits. Strips were prepared by removing the epidermis and the inner skin using knife, whereas outer splits were prepared by removing the inner skin of the culm. For the bamboo plywood production, the bamboo strips were glued edge-to-edge using polyvinyl acetate resin into a 410 mm x 410 mm x 4 mm sized laminate. The laminates were then bonded perpendicularly to each other using phenol formaldehyde resin to produce tbreeply bamboo plywood. The assembly time was set at 30 min and bamboo plywood was consolidated by hot pressing at 140°C and pressure of 14 kg'cm2 for 6.5 minutes. Commercial structural plywood (Grade A) Merawan species with the same thickness as the bamboo plywood (12 mm) was used for comparison purposes. The results of the physical studies indicate that within the culm wall, the moisture content decreased from the interior towards the peripheral layer of the culm while the specific gravity increased. The moisture content decreased with height, whilst specific gravity increased. In the strip form, bamboo shrank: more in both radial and tangential directions than in the longitudinal direction. Between radial and tangential, shrinkage occurs more in radial than in tangential. The mean value of modulus of rupture (MOR) for the bamboo strips (179.6 N/mm2) showed no significant difference with splits (periphery layer oriented upward, 158.3 N/mm2) but a significant difference was observed when compared with the periphery layer oriented downwards (134.2 N/mm2). Bamboo - Case studies Plywood - Case studies 2003-03 Thesis http://psasir.upm.edu.my/id/eprint/10144/ http://psasir.upm.edu.my/id/eprint/10144/1/FH_2003_11.pdf text en public masters Universiti Putra Malaysia Bamboo - Case studies Plywood - Case studies Faculty of Forestry Ashaari, Zaidon English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
advisor	Ashaari, Zaidon
topic	Bamboo - Case studies Plywood - Case studies
spellingShingle	Bamboo - Case studies Plywood - Case studies Uyup, Mohd Khairul Anwar Properties and Utilisation of Tropical Bamboo (Gigantochloa Scortechinii), for Structural Plywood
description	The objectives of these study were to determine the physical and mechanical properties of 4-year-old Gigantochloa scortechinii culms and to evaluate the properties of plywood manufactured from the bamboo culms. Bamboo culms were split using hand splitter to produce splits. Strips were prepared by removing the epidermis and the inner skin using knife, whereas outer splits were prepared by removing the inner skin of the culm. For the bamboo plywood production, the bamboo strips were glued edge-to-edge using polyvinyl acetate resin into a 410 mm x 410 mm x 4 mm sized laminate. The laminates were then bonded perpendicularly to each other using phenol formaldehyde resin to produce tbreeply bamboo plywood. The assembly time was set at 30 min and bamboo plywood was consolidated by hot pressing at 140°C and pressure of 14 kg'cm2 for 6.5 minutes. Commercial structural plywood (Grade A) Merawan species with the same thickness as the bamboo plywood (12 mm) was used for comparison purposes. The results of the physical studies indicate that within the culm wall, the moisture content decreased from the interior towards the peripheral layer of the culm while the specific gravity increased. The moisture content decreased with height, whilst specific gravity increased. In the strip form, bamboo shrank: more in both radial and tangential directions than in the longitudinal direction. Between radial and tangential, shrinkage occurs more in radial than in tangential. The mean value of modulus of rupture (MOR) for the bamboo strips (179.6 N/mm2) showed no significant difference with splits (periphery layer oriented upward, 158.3 N/mm2) but a significant difference was observed when compared with the periphery layer oriented downwards (134.2 N/mm2).
format	Thesis
qualification_level	Master's degree
author	Uyup, Mohd Khairul Anwar
author_facet	Uyup, Mohd Khairul Anwar
author_sort	Uyup, Mohd Khairul Anwar
title	Properties and Utilisation of Tropical Bamboo (Gigantochloa Scortechinii), for Structural Plywood
title_short	Properties and Utilisation of Tropical Bamboo (Gigantochloa Scortechinii), for Structural Plywood
title_full	Properties and Utilisation of Tropical Bamboo (Gigantochloa Scortechinii), for Structural Plywood
title_fullStr	Properties and Utilisation of Tropical Bamboo (Gigantochloa Scortechinii), for Structural Plywood
title_full_unstemmed	Properties and Utilisation of Tropical Bamboo (Gigantochloa Scortechinii), for Structural Plywood
title_sort	properties and utilisation of tropical bamboo (gigantochloa scortechinii), for structural plywood
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Forestry
publishDate	2003
url	http://psasir.upm.edu.my/id/eprint/10144/1/FH_2003_11.pdf
_version_	1794018882527166464

Properties and Utilisation of Tropical Bamboo (Gigantochloa Scortechinii), for Structural Plywood

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