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Bending modulus of elasticity and strength of 1.75" x 3.5" x 96" Douglas-fir microlam and spruce specimens

https://library.fpinnovations.ca/en/permalink/fpipub5495
Author
Palka, L.C.
Rovner, B.
Olson, L.
Wakeman, R.G.
Walser, D.C.
Date
March 1991
Edition
37257
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Palka, L.C.
Rovner, B.
Olson, L.
Wakeman, R.G.
Walser, D.C.
Date
March 1991
Edition
37257
Material Type
Research report
Physical Description
12 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Veneer
Mechanical properties
Laminate product
Series Number
Appendix 2 to Forestry Canada No. 35
Contract no. 1812L007
W-874
Location
Vancouver, British Columbia
Language
English
Abstract
The purpose of this small study was to examine the effect of various test methods upon the bending moduli of elasticity and to determine the bending strength of selected Douglas-fir and spruce laminated veneer lumber specimens.
Lumber, Laminated veneer - Strength
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Evaluation of wood properties from the forest resource

https://library.fpinnovations.ca/en/permalink/fpipub37237
Author
Troughton, G.E.
Walser, D.C.
Andersen, Axel W.
Date
March 1991
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Troughton, G.E.
Walser, D.C.
Andersen, Axel W.
Date
March 1991
Material Type
Research report
Physical Description
53 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Veneer
Laminate product
Series Number
Forestry Canada No. 35;1812L007
W-843
Location
Vancouver, British Columbia
Language
English
Abstract
Unseasoned spruce heart veneer was incised and steam-press dried using platen pressures of 25, 100 and 200 psi. Three-ply plywood panels were then prepared from these densified veneers. Results showed that the stiffness values for laminated veneer lumber (LVL) made with low stiffness SPF veneer or combinations of SPF and Douglas-fir veneer can be greatly increased and meet the 2,000,000 psi MOE marketing requirement using two methods. One involves impregnating unseasoned SPF veneer with phenolic resin and the second method involves using a special lay-up of the SPF and Douglas-fir veneers. These results will greatly help in marketing LVL using western veneer species. New technology of incising, moisture tolerant adhesives and self-generated steam developed at Forintek substantially reduced pressing time by about 40% which will make the manufacture of LVL more economical.
Lumber, Laminated veneer
Modified woods
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Investigation of flatwise and edgewise bending properties of laminated veneer lumber tested parallel to grain

https://library.fpinnovations.ca/en/permalink/fpipub5494
Author
Palka, L.C.
Stroh, L.
Troughton, G.E.
Andersen, Axel W.
Date
March 1991
Edition
37256
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Palka, L.C.
Stroh, L.
Troughton, G.E.
Andersen, Axel W.
Date
March 1991
Edition
37256
Material Type
Research report
Physical Description
12 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Veneer
Mechanical properties
Sample
Laminate product
Series Number
W-873
Location
Vancouver, British Columbia
Language
English
Abstract
The purpose of this study was to determine flatwise and edgewise bending strength ("MOR") and stiffness ("MOE") of spruce and pine 1.5-inch by 3.5-inch by 48-inch laminated veneer lumber ("LVL") specimens parallel to grain. The experimental spruce and pine data was pooled together to give a combined spruce-pine data set.
Appendix 1 to Forestry Canada No. 35, Contract no. 1812L007 on lumber and laminated veneer strength.
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Non-residential applications of glulam - progress report

https://library.fpinnovations.ca/en/permalink/fpipub37251
Author
Karacabeyli, Erol
Date
March 1991
Material Type
Research report
Field
Sustainable Construction
products such as LVL (Laminated Veneer Lumber) and PSL ( P a r a l l e l Strand Lumber). I t has been
Author
Karacabeyli, Erol
Date
March 1991
Material Type
Research report
Physical Description
75 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Veneer
Roofs
Trusses
Mechanical properties
Laminate product
Series Number
Forestry Canada No. 15;5410P014
W-868
Location
Vancouver, British Columbia
Language
English
Abstract
This progress report contains work performed for the project "Non-residential Applications of Glulam". It includes the experimental and analytical results obtained on laminating lumber grades, finger joints, tension and compression glulam grades, truss plate/glulam joints, and metal- plated glulam trusses.
Lumber, Laminated veneer
Trusses - Strength
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