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2765 records – page 1 of 277.

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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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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2006-07 Lumber properties program

https://library.fpinnovations.ca/en/permalink/fpipub1335
Author
Lum, Conroy
Date
March 2007
Edition
37816
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Lum, Conroy
Contributor
Canadian Forest Service
National Lumber Grades Authority
Date
March 2007
Edition
37816
Material Type
Research report
Physical Description
68 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Mechanical properties
Specifications
Grading
Specification
Series Number
5439
W-2383
Location
Vancouver, British Columbia
Language
English
Abstract
The Canadian lumber industry has identified, as a high priority, the establishment of a multi-year Lumber Properties Program that pulls together a number of urgent initiatives currently underway to establish and/or maintain Canadian lumber design values. The desire is to have an overall program that emphasizes the proper development of a longer-term strategic plan and process to deal with current and future initiatives. Combining the current industry resources with Federal Government contributions through Natural Resources Canada (NRCan), the first step in the Program has been completed: to gather the various initiatives now underway and to begin the formal development of pan-Canadian policies to guide the development, implementation and on-going maintenance of such initiatives. The key activities in 2006-07 were:
Launching of the pilot phase of the on-going monitoring program, and development of a simulation model to assist in determining what sort of trends can be reliably detected and which cannot;
Completion of the in-grade testing program on Canadian Norway spruce;
Analysis of the No.2 2x4 Hem-Fir (N) monitoring study and confirmation of the appropriateness of assigned design values;
Identification of an alternative species grouping procedure for further study;
Starting of a process under the ASTM Committee on Wood to address gaps in the Grade Quality Index provisions in ASTM Practice D1990, and
Establishing a forum for engaging the US in discussions on lumber properties issues. Lumber properties issues crucial to maintaining the competitiveness of Canadian lumber continue to be the same as in previous years: tests and means to adjust for sample representativeness using the Grade Quality Index (GQI), species grouping and re-grouping procedures, and on-going lumber monitoring. As a result, discussion on a pan-Canadian strategy and supporting policies necessary to support Canadian lumber initiatives tend to focus on these three issues. The challenge is to ensure that these issues are dealt with in a way that balances both short and longer-term needs and provides a net overall benefit to the Canadian industry.
Grading - Lumber - Specifications
Lumber Strength
Documents
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The ability of bacteria to induce brownstain in western hemlock

https://library.fpinnovations.ca/en/permalink/fpipub5877
Author
Kreber, B.
Hedberg, B.
Date
March 1996
Edition
41145
Material Type
Research report
Field
Sustainable Construction
Author
Kreber, B.
Hedberg, B.
Contributor
Canada. Canadian Forest Service.
Date
March 1996
Edition
41145
Material Type
Research report
Physical Description
7 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Tsuga Heterophylla
Tsuga
Stain
Bacteria
Series Number
Canadian Forest Service No. 32 1/2
Contract no. 1715K024
W-1322
Location
Vancouver, British Columbia
Language
English
Abstract
Three Gram negative bacteria isolated from brownstained western hemlock were investigated for their capacity to produce hemlock brownstain. Brownstain was observed when infecting western hemlock with two bacteria. Oxygen was strongly indicated as being indespensable for the development of brownstain in infected samples. However, pH did not seem to influence the production of this stain.
Tsuga heterophylla - Stains, Chemical
Stains - Chemical
Degradation, Bacterial
Bacteria
Documents
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About EPDS [environmental product declarations]

https://library.fpinnovations.ca/en/permalink/fpipub3195
Author
Mahalle, Lal
Date
October 2013
Edition
39855
Material Type
Research report
Field
Sustainable Construction
Author
Mahalle, Lal
Date
October 2013
Edition
39855
Material Type
Research report
Physical Description
2 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Environment
Manufacturing
Series Number
W-3107
Language
English
Abstract
Environmental product declarations (EPDs) are a standardized way for manufacturers to report quantified environmental impacts of their products. EPDs are developed in line with well-established guidelines from the International Organization for Standardization (ISO) to ensure rigorous and transparent procedures are followed.
Documents
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Accelerated aging and outdoor weathering of aspen waferboard

https://library.fpinnovations.ca/en/permalink/fpipub4743
Author
Alexopoulos, J.
Date
March 1991
Edition
41549
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Alexopoulos, J.
Date
March 1991
Edition
41549
Material Type
Research report
Physical Description
39 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Alberta
Manitoba
Saskatchewan
Waferboards
Utilization
Aspen
Aging
Series Number
Forestry Canada No. 1
E-1235
Location
Ottawa, Ontario
Language
English
Abstract
Waferboard
Aspen - Utilization
Waferboard - Aging
Documents
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2765 records – page 1 of 277.