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3069 records – page 1 of 307.

Author
Orbay, L.
Date
January 2002
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Orbay, L.
Date
January 2002
Material Type
Research report
Physical Description
47 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Scanning electron microscopy
Scanners
Series Number
1983
W-1826
Location
Vancouver, British Columbia
Language
English
Abstract
Thirty full-length sample trees from the B.C. Interior were selected for a study to determine whether external log characteristics can predict internal log quality. The sample trees were also used to create 3-dimensional log images for sawmill simulation purposes. "LogSaw", a simulation tool with internal log defect detection capabilities, was used to explore the extent to which internal and external log quality information can improve log breakdown optimization. A model of a hypothetical sawmill producing lumber for the standard North American dimension market was created to study how lumber value recovery depends on different sawing optimization scenarios. Three sawing optimization scenarios using different levels of knowledge of internal log defects were compared to currently used sawing optimization technique:
Ideal sawing optimization - all defects within log interior are known.
Sawing optimization using only the knowledge of surface knots.
Sawing optimization using log rotation instructions based on zones of least external knot density. Simulation results have shown that it is worthwhile to “look into the log”. When compared with the current optimization technique, the sawing optimization, including the full knowledge of log interior, has increased the value recovery by 6.2%. When only the surface knots were projected into the log interior and included in the optimization, the value recovery had increased by 4.3%. Even this 4.3% increase is still a big improvement because this sawing optimization could be implemented using currently available scanning technologies and optimization software enhanced to include log surface knots. The scenario of using log rotation instructions based on predicted zones of least internal knot density did not show value recovery improvement. Including surface knots in the log breakdown optimization has considerably increased sawmill revenue; the hypothetical sawmill considered in this study, processing 400,000 m3 of log per year, has increased its revenue by $2.2 million.
Scanners, Electronic
Defects - Detection
Documents
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1 : l'écorçage des billes

https://library.fpinnovations.ca/en/permalink/fpipub38641
Author
Pleau, J.H.
Date
January 1993
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Pleau, J.H.
Date
January 1993
Material Type
Research report
Physical Description
51 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Maintenance
Series Number
E-1843
Location
Ottawa, Ontario
Language
French
Abstract
Debarkers - Maintenance
Documents
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2 : le déchiquetage : la qualité des copeaux : à la déchiqueteuse à disque

https://library.fpinnovations.ca/en/permalink/fpipub2106
Author
Pleau, J.H.
Date
January 1993
Edition
38642
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Pleau, J.H.
Date
January 1993
Edition
38642
Material Type
Research report
Physical Description
14 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Planers
Series Number
E-1844
Location
Ottawa, Ontario
Language
French
Abstract
Planers - Maintenance
Knives
Cutters
Documents
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3 : le déchiquetage : la qualité des copeaux : à la déchiqueteuse-équarisseuse (Canter)

https://library.fpinnovations.ca/en/permalink/fpipub2107
Author
Pleau, J.H.
Date
January 1993
Edition
38643
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Pleau, J.H.
Date
January 1993
Edition
38643
Material Type
Research report
Physical Description
11 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Chippers
Series Number
E-1845
Location
Ottawa, Ontario
Language
French
Abstract
Chipper Canters - Maintenance
Documents
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4 : le tamisage des copeaux

https://library.fpinnovations.ca/en/permalink/fpipub2108
Author
Pleau, J.H.
Date
January 1993
Edition
38644
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Pleau, J.H.
Date
January 1993
Edition
38644
Material Type
Research report
Physical Description
8 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Chips
Sorting
Series Number
E-1846
Location
Ottawa, Ontario
Language
French
Documents
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5 ply, preservative treated plywood sample

https://library.fpinnovations.ca/en/permalink/fpipub1563
Author
Morgan, E.K.
Date
October 1985
Edition
38069
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Morgan, E.K.
Contributor
Canada Mortgage and Housing Corporation (CMHC)
Date
October 1985
Edition
38069
Material Type
Research report
Physical Description
3 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Testing
Preservation
Plywood
Series Number
3-45-68-569
E-197
Location
Ottawa, Ontario
Language
English
Abstract
Plywood - Preservation - Testing
Plywood - Testing
Documents
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20-year evaluation of millwork preservatives

https://library.fpinnovations.ca/en/permalink/fpipub4412
Author
Ingram, Janet K.
Morris, Paul I.
Date
January 1999
Edition
41191
Material Type
Research report
Field
Sustainable Construction
Author
Ingram, Janet K.
Morris, Paul I.
Date
January 1999
Edition
41191
Material Type
Research report
Physical Description
5 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Preservatives tests
Preservatives
Preservation
Series Number
W-1548
Location
Vancouver, British Columbia
Language
English
Abstract
A field test of six millwork preservatives has been ongoing for twenty years, using a simulated window corner, or "Y-joint", as the test unit. Three preservatives provided excellent protection to white pine and white spruce: 5% pentachlorophenol in varsol, phenyl mercury oleate in varsol, and 0.75% oxine copper in varsol.
Preservatives - Tests
Preservation - Durability
Documents
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24 month evaluation of novel UV protection systems. Second Year Report 2004/05

https://library.fpinnovations.ca/en/permalink/fpipub4530
Author
Morris, Paul I.
McFarling, S.M.
Date
March 2005
Edition
41317
Material Type
Research report
Field
Sustainable Construction
Author
Morris, Paul I.
McFarling, S.M.
Contributor
Canada. Canadian Forest Service.
Date
March 2005
Edition
41317
Material Type
Research report
Physical Description
19 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Preservatives tests
Preservatives
Series Number
Canadian Forest Service No. 35;3226
W-2134
Location
Vancouver, British Columbia
Language
English
Abstract
A transparent coating with long-term performance could help wood maintain its share of residential markets against material substitution and potentially expand markets in recreational property and non-residential buildings. While transparent coatings can be made reasonably resistant to UV some UV likely penetrates to the wood and by necessity clear coatings are transparent to visible light. Visible light can also cause damage over the long term thus the underlying wood needs additional protection. Four novel UV protection systems were tested as pre-treatments on uncoated wood and under three coatings, a water-based film forming coating, a water-based acrylic varnish and a solvent based water repellent. Samples were exposed to natural weathering facing South at 45° at a test site in Gulfport, Mississippi, in collaboration with the USDA Forest Products Laboratory. The test material was inspected every six months for discolouration, mold and stain, coating water repellency, flaking, erosion and cracking and substrate condition. After 24 months exposure, coatings over the combination of UV absorber and lignin stabilizer identified by Stephen Ayer were performing better than the same coatings applied over the combination recommended by Ciba and coatings over both pre-treatments were performing substantially better than controls with no pre-treatment. Projection of fitted curves beyond the data appears to indicate that pretreatment may double the life expectancy of the coating. There was no consistent effect of the synergists on either combination at this time.
Preservatives - Tests
Finishes - Exterior - Tests
Documents
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25-year evaluation of millwork preservatives

https://library.fpinnovations.ca/en/permalink/fpipub4504
Author
Ingram, Janet K.
Morris, Paul I.
Date
December 2003
Edition
41291
Material Type
Research report
Field
Sustainable Construction
Author
Ingram, Janet K.
Morris, Paul I.
Date
December 2003
Edition
41291
Material Type
Research report
Physical Description
5 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Preservatives tests
Preservatives
Preservation
Series Number
W-2002
Location
Vancouver, British Columbia
Language
English
Abstract
A field test of six millwork preservatives has been ongoing for 25 years, using a "Y-joint" as the test unit. Three preservatives provided excellent protection to white pine and white spruce: 5% pentachlorophenol in varsol, phenyl mercury oleate in varsol, and 0.75% oxine copper in varsol.
Preservatives - Tests
Preservation - Durability
Documents
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1999 strategy for durability research and technology transfer

https://library.fpinnovations.ca/en/permalink/fpipub5885
Author
Morris, Paul I.
O'Connor, J.
Jones, E.
Boudreau, M.
Date
August 1999
Edition
41223
Material Type
Research report
Field
Sustainable Construction
Author
Morris, Paul I.
O'Connor, J.
Jones, E.
Boudreau, M.
Date
August 1999
Edition
41223
Material Type
Research report
Physical Description
24 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Research
Series Number
W-1685
Location
Vancouver, British Columbia
Language
English
Abstract
The objective of this initiative is to re-evaluate Forintek's research strategy and the Canadian Wood Council's technology transfer strategy in durability of wood products and systems in the light of changing industrial, regulatory, environmental, and social factors. Forintek and the CWC chose to undertake this process jointly, in order to develop well-matched parallel activities that are mutually supportive and grounded in common underlying objectives. In this way, both organizations can most effectively and efficiently address our members' needs in an area of growing challenges for the wood industry. The first step in the strategic planning process was the creation of a joint CWC/Forintek Durability Guidance Group. This group was canvassed for input on high priority issues related to wood durability. Forintek and CWC then developed ideas for deliverables or tasks in research and technology transfer, respectively. At this stage we are looking for input on the degree to which this draft strategy addresses industry needs.
Research - Durability
Documents
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3069 records – page 1 of 307.