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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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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/22094/1/ABS_WAN%20HAZIRA%20WAN%20MOHAMAD%20TDRA%20VOL%2014%20IGS%2018.pdf
http://ir.uitm.edu.my/id/eprint/22094/
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spelling my.uitm.ir.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.
institution Universiti Teknologi Mara
building Tun Abdul Razak Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Mara
content_source UiTM Institutional Repository
url_provider http://ir.uitm.edu.my/
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/22094/1/ABS_WAN%20HAZIRA%20WAN%20MOHAMAD%20TDRA%20VOL%2014%20IGS%2018.pdf
http://ir.uitm.edu.my/id/eprint/22094/
_version_ 1685649554923323392
score 13.211869

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