INVESTIGATION OF THE STRUCTURAL PERFOMANCE OF GLUED LAMINATED GREVILLEA TIMBER

Abstract
The use of timber and more so the Grevillea timber as a construction material in the country
has been in question for a couple of time. The main aim of the research project was to
investigate the structural performance of the glued laminated Grevillea timber. The research
focuses on doing comparative tests on both laminated and solid Grevillea timber specimens
and hence determining their strengths.
Various specimens of both laminated and solid Grevillea timber obtained locally were
prepared and tested at equilibrium moisture content according to the relevant standards. The
adhesive used for lamination was also obtained locally.
The tests involved static bending perpendicular to grain, compressive strength parallel to
grain and shear parallel to grain. The moisture contents were also tested to ensure they lied
within the equilibrium moisture content.
From the various tests and computations, the bending strength values for the solid Grevillea
timber specimens were found to be higher than the ones for laminated specimens. The
compressive strengths for the laminated Grevillea timber specimens were found to be higher
than the ones for the solid specimens. However, the shear strengths for solid Grevillea timber
specimens were found to be higher than the ones for the laminated specimens. The moisture
contents for both the glued laminated specimens and the solid specimens were found to lie
within the equilibrium moisture contents.

 

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Ogire Moses Ouma Final Year Project 2015.pdf3.46 MB