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European Journal of Wood and Wood Products
Published in: European Journal of Wood and Wood Products 1/2014

01-01-2014 | Brief Originals Kurzoriginalia

Effect of end pressure on performance of structural finger-joined lumber fabricated using a short joint profile

Authors: Shuzhan Rao, Meng Gong, Y. H. Chui, Mohammad Mohammad

Published in: European Journal of Wood and Wood Products | Issue 1/2014

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Abstract

This study was to examine the effect of end pressure on the mechanical properties and delamination resistance of structural black spruce (Picea mariana) finger-joined lumber made of a short (12.7-mm-long) finger profile. End pressures used were 2.00, 3.43, 6.00 and 8.00 MPa. 8.00 MPa yielded the greatest 5th percentile ultimate tensile strength, but caused cracks at tips of a joint. It was recommended that 2.00 MPa be used as the optimized end pressure from the viewpoint of energy saving.
previous article Evaluation of termiticidal activity of coconut shell oil and its comparison to commercial wood preservatives

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Literature
ASTM (2009a) Standard test methods of static tests of lumber in structural sizes. American Society for Testing and Materials, D198-09, West Conshohocken, PA, USA
ASTM (2009b) Standard test methods for specific gravity of wood and wood-based materials. American Society for Testing and Materials, D2395-07a, West Conshohocken, PA, USA
Bustos C, Mohammad M, Hernández R, Beauregard R (2003) Effects of curing time and end-pressure on the tensile strength of finger-joined black spruce lumber. Forest Prod J 53(11/12):85–89
Gong M, Delahunty S, Chui YH, Rao SZ (2011) Reducing production cost in manufacturing of finger joined lumber. Final Report (UNB105) to Natural Resource Canada, Wood Science and Technology Centre, University of New Brunswick, Canada
Mohammad M (2004) Finger-joint process and products quality. Report #4016, FPInnovations - Forintek Division, St-Foy, Quebec, Canada
NLGA (2006) Special products standard for finger-joined flange stock lumber. National Lumber Grades Authority, SPS4, Westminster, BC, Canada
NLGA (2007) Special products standard for finger-joined structural lumber. National Lumber Grades Authority, SPS1, Westminster, BC, Canada
Raknes E (1980) The influence of production conditions on the strength of finger-joints. In: Prins CFL (ed) Proceedings of production, marketing and use of finger-jointed sawnwood. Timber Committee of the United Nations Economic Commission for Europe. Martinus Nijhof/Dr. W. Junk Publishers, Boston, MA, USA, pp 154–168
Metadata
Title
Effect of end pressure on performance of structural finger-joined lumber fabricated using a short joint profile
Authors
Shuzhan Rao
Meng Gong
Y. H. Chui
Mohammad Mohammad
Publication date
01-01-2014
Publisher
Springer Berlin Heidelberg
Published in
European Journal of Wood and Wood Products / Issue 1/2014
Print ISSN: 0018-3768
Electronic ISSN: 1436-736X
DOI
https://doi.org/10.1007/s00107-013-0756-6

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