Properties of single and mixed species glulam from selected low-grade Malaysian timbers / Wan Hazira Wan Mohamad

Heavy timber construction in Malaysia generally uses heavy and medium hardwood timbers with strength groups between SGI to SG4. Light hardwood timbers with strength group of SG5 to SG7, which are also known as low-grade timbers are mostly used for non-structural applications and this does not repres...

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Bibliographic Details
Main Author:	Wan Mohamad, Wan Hazira
Format:	Book Section
Language:	English
Published:	Institute of Graduate Studies, UiTM 2018
Subjects:	Chemical engineering
Online Access:	http://ir.uitm.edu.my/id/eprint/22094/ http://ir.uitm.edu.my/id/eprint/22094/1/ABS_WAN%20HAZIRA%20WAN%20MOHAMAD%20TDRA%20VOL%2014%20IGS%2018.pdf

id	uitm-22094
recordtype	eprints
spelling	uitm-220942018-11-13T08:27:40Z http://ir.uitm.edu.my/id/eprint/22094/ Properties of single and mixed species glulam from selected low-grade Malaysian timbers / Wan Hazira Wan Mohamad Wan Mohamad, Wan Hazira Chemical engineering Heavy timber construction in Malaysia generally uses heavy and medium hardwood timbers with strength groups between SGI to SG4. Light hardwood timbers with strength group of SG5 to SG7, which are also known as low-grade timbers are mostly used for non-structural applications and this does not represent an efficient use of available timber. Thus, one of the ways to fully utilize and upgrade the value of these timbers is by converting them into glued laminated timber (glulam). Glulam allows the use of any timber species be it low-grade timber, small diameter trees, plantation and fast growing timber species, as long as the timber species selected have good gluing characteristics and can fulfill the production and structural requirement of glulam. Glulam also offers the opportunity to combine highgrade timber at the outer laminations with low-grade timber at the inner laminations, producing a mixed-species glulam. This study investigates the effect of using Malaysian lower grade timber species combined with higher grade timber species in the manufacturing of glulam. Two types of glulam beams were prepared; (i) mono species with uniform layup using Kapur, Merpauh, Resak, White Meranti, Bintangor, Jelutong and Sesendok, and (ii) mixed species with balanced layup whereby higher strength grade timbers i.e. Merpauh and Kapur were equally positioned at the outer layer and the lower strength grade timbers i.e. Jelutong and Sesendok were positioned at the inner layer. Ten-layered glulam beams were prepared in accordance with MS758. A series of tests were performed namely flexural, delamination and block shear tests. Prior to glulam manufacturing, the flexural properties of solid timber beam in structural size and the effect of two different finger lengths on flexural properties of finger jointed beams were determined… Institute of Graduate Studies, UiTM 2018 Book Section PeerReviewed text en http://ir.uitm.edu.my/id/eprint/22094/1/ABS_WAN%20HAZIRA%20WAN%20MOHAMAD%20TDRA%20VOL%2014%20IGS%2018.pdf Wan Mohamad, Wan Hazira (2018) Properties of single and mixed species glulam from selected low-grade Malaysian timbers / Wan Hazira Wan Mohamad. In: The Doctoral Research Abstracts. IGS Biannual Publication, 14 . Institute of Graduate Studies, UiTM, Shah Alam.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Chemical engineering
spellingShingle	Chemical engineering Wan Mohamad, Wan Hazira Properties of single and mixed species glulam from selected low-grade Malaysian timbers / Wan Hazira Wan Mohamad
description	Heavy timber construction in Malaysia generally uses heavy and medium hardwood timbers with strength groups between SGI to SG4. Light hardwood timbers with strength group of SG5 to SG7, which are also known as low-grade timbers are mostly used for non-structural applications and this does not represent an efficient use of available timber. Thus, one of the ways to fully utilize and upgrade the value of these timbers is by converting them into glued laminated timber (glulam). Glulam allows the use of any timber species be it low-grade timber, small diameter trees, plantation and fast growing timber species, as long as the timber species selected have good gluing characteristics and can fulfill the production and structural requirement of glulam. Glulam also offers the opportunity to combine highgrade timber at the outer laminations with low-grade timber at the inner laminations, producing a mixed-species glulam. This study investigates the effect of using Malaysian lower grade timber species combined with higher grade timber species in the manufacturing of glulam. Two types of glulam beams were prepared; (i) mono species with uniform layup using Kapur, Merpauh, Resak, White Meranti, Bintangor, Jelutong and Sesendok, and (ii) mixed species with balanced layup whereby higher strength grade timbers i.e. Merpauh and Kapur were equally positioned at the outer layer and the lower strength grade timbers i.e. Jelutong and Sesendok were positioned at the inner layer. Ten-layered glulam beams were prepared in accordance with MS758. A series of tests were performed namely flexural, delamination and block shear tests. Prior to glulam manufacturing, the flexural properties of solid timber beam in structural size and the effect of two different finger lengths on flexural properties of finger jointed beams were determined…
format	Book Section
author	Wan Mohamad, Wan Hazira
author_facet	Wan Mohamad, Wan Hazira
author_sort	Wan Mohamad, Wan Hazira
title	Properties of single and mixed species glulam from selected low-grade Malaysian timbers / Wan Hazira Wan Mohamad
title_short	Properties of single and mixed species glulam from selected low-grade Malaysian timbers / Wan Hazira Wan Mohamad
title_full	Properties of single and mixed species glulam from selected low-grade Malaysian timbers / Wan Hazira Wan Mohamad
title_fullStr	Properties of single and mixed species glulam from selected low-grade Malaysian timbers / Wan Hazira Wan Mohamad
title_full_unstemmed	Properties of single and mixed species glulam from selected low-grade Malaysian timbers / Wan Hazira Wan Mohamad
title_sort	properties of single and mixed species glulam from selected low-grade malaysian timbers / wan hazira wan mohamad
publisher	Institute of Graduate Studies, UiTM
publishDate	2018
url	http://ir.uitm.edu.my/id/eprint/22094/ http://ir.uitm.edu.my/id/eprint/22094/1/ABS_WAN%20HAZIRA%20WAN%20MOHAMAD%20TDRA%20VOL%2014%20IGS%2018.pdf
first_indexed	2023-09-18T23:07:55Z
last_indexed	2023-09-18T23:07:55Z
_version_	1777418607152594944

Properties of single and mixed species glulam from selected low-grade Malaysian timbers / Wan Hazira Wan Mohamad

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