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67 records – page 1 of 7.

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
F68 1990-91 ID=1235 c . 1 r ACCELERATED AGING AND OUTDOOR WEATHERING OF ASPEN WAFERBOARD by J
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
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Ammoniacal wood preservatives for use in non-pressure treatment of spruce and aspen poplar

https://library.fpinnovations.ca/en/permalink/fpipub4638
Author
Ralph, C.D.
Date
March 1982
Edition
41437
Material Type
Research report
Field
Sustainable Construction
ÊVO AMMONIACAL WOOD PRESERVATIVES FOR USE IN NON-PRESSURE TREATMENT OF SPRUCE AND ASPEN POPLAR
Author
Ralph, C.D.
Date
March 1982
Edition
41437
Material Type
Research report
Physical Description
25 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Pinus
Spruce
Preservatives ammoniacal
Preservatives
Preservation
Populus
Picea
Aspen
Ammonia
Series Number
CFS/DSS project no 23/81-82
E-40
Location
Ottawa, Ontario
Language
English
Abstract
Preservatives - Ammoniacal copper arsenate (ACA)
Picea glauca - Preservation
White Spruce - Preservation
Populus - Preservation
Aspen - Preservation
Poplar - Preservation
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Ammoniacal wood preservatives for use in thermal diffusion treatment of wood

https://library.fpinnovations.ca/en/permalink/fpipub4663
Author
Ralph, C.D.
Date
March 1983
Edition
41462
Material Type
Research report
Field
Sustainable Construction
Author
Ralph, C.D.
Date
March 1983
Edition
41462
Material Type
Research report
Physical Description
37 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Wood preservation
Wood
Preservatives ammoniacal
Preservatives
Preservation
Populus tremuloides
Populus
Picea
Aspen
Ammonia
Series Number
CFS/DSS project no 11/82-83
Project no.65-57-368
E-210
Location
Ottawa, Ontario
Language
English
Abstract
Preservatives - Ammoniacal copper arsenate (ACA)
Populus tremuloides - Preservation
Picea glauca - Preservation
Wood - Preservation
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An assessment of market opportunities for western Canadian aspen in the United States, Japan and Europe

https://library.fpinnovations.ca/en/permalink/fpipub4486
Author
Gaston, Chris
Date
July 2002
Edition
41271
Material Type
Research report
Field
Sustainable Construction
Author
Gaston, Chris
Date
July 2002
Edition
41271
Material Type
Research report
Physical Description
68 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Market Analysis
Subject
United States (USA)
Populus tremuloides
Populus
Markets
Canada
Japan
Aspen
Series Number
W-1896
Location
Vancouver, British Columbia
Language
English
Abstract
This study is a preliminary investigation of market demand for Western Canadian aspen in three major market places, the United States, Japan and Western Europe. As a preliminary investigation, there was no attempt to statistically characterize specifier populations. Rather, through consultations with industry, combined with the author's personal experiences, potential specifiers were identified and selectively interviewed. This process included aspen lumber/boards at various grades, edge-glued panels, veneer, plywood, and laminated veneer lumber. Both structural and non-structural applications were considered.
Populus tremuloides
Markets - United States
Markets - Japan
Markets - Europe
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Aspen logging debris management techniques

https://library.fpinnovations.ca/en/permalink/fpipub525
Author
Bulley, Brian
Date
1999
Edition
36765
Material Type
Research report
Field
Fibre Supply
Author
Bulley, Brian
Date
1999
Edition
36765
Material Type
Research report
Physical Description
12 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Treatment
Slash treatment
Slash
Roads
Residues
Processing
Logs
Aspen
Alberta
Series Number
Technical Note ; TN-000283
Language
English
Abstract
In 1997, FERIC, Alberta Research Council (ARC), Ainsworth Lumber Inc., and Daishowa-Marubeni International Ltd. conducted a study to determine the productivities and costs of various methods of managing logging debris in aspen cutblocks. Conventional roadside processing, two in-block processing treatments (intermediate skid and at-the-stump processing), and roadside processing with subsequent dispersal of slash into the block were assessed.
Logging residues
Residue management
Roadside processing
Slash treatment
Aspen
Alberta
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Characteristics of Alberta's commercial tree species

https://library.fpinnovations.ca/en/permalink/fpipub985
Author
Gonzalez, J.S.
Date
March 1995
Edition
37360
Material Type
Research report
Field
Sustainable Construction
Author
Gonzalez, J.S.
Contributor
Alberta Research Council
Date
March 1995
Edition
37360
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Alberta
British Columbia
Populus tremuloides
Populus
Pinus contorta
Pinus banksiana
Pinus
Picea
Black spruce
Betula
Balsam
Aspen
Fir
Series Number
W-1150
Location
Vancouver, British Columbia
Language
English
Abstract
This publication characterizes nine commercial tree species of Alberta. Included are descriptions of the range and volume of each species, their wood properties, and present and potential manufacturing uses.
Populus balsamifera
Populus tremuloides
Betula papyrifera
Abies balsamea
Abies lasiocarpa
Pinus banksiana
Pinus contorta Dougl var. latifolia
Picea mariana
Picea glauca
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The characterization and utilization of lignin from pretreated lignocellulosic substrates : final report

https://library.fpinnovations.ca/en/permalink/fpipub2286
Author
Sutcliffe, Roger
Date
August 1988
Edition
38840
Material Type
Research report
Field
Bioproducts
PDF
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Author
Sutcliffe, Roger
Date
August 1988
Edition
38840
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Bioproducts
Research Area
Biomass Conversion
Subject
Waste utilization
Utilization
Tires
Steam pretreatment
Steam
Solvents
Pretreatment
Lignin
Biomass
Binders
Aspen
Adhesives
Series Number
DSS contract file no. O2SQ.23216-4-6364
Location
Ottawa, Ontario
Language
English
PDF
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The characterization and utilization of lignin from pretreated lignocellulosic substrates : first interim report

https://library.fpinnovations.ca/en/permalink/fpipub2134
Contributor
Forintek Canada Corp.
Date
April 1986
Edition
38671
Material Type
Research report
Field
Bioproducts
PDF
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enzymatic hydrolysis of a steamed aspen sample still contained about 15% carbohydrate. Yields of lignin
Contributor
Forintek Canada Corp.
Date
April 1986
Edition
38671
Material Type
Research report
Physical Description
28 p.
Sector
Wood Products
Field
Bioproducts
Research Area
Biomass Conversion
Subject
Waste utilization
Utilization
Tires
Steam pretreatment
Steam
Solvents
Pretreatment
Lignin
Biomass
Binders
Aspen
Adhesives
Series Number
DSS contract file no. O2SQ.23216-4-6364
Location
Ottawa, Ontario
Language
English
Abstract
The current project was initiated to address the utilization of the lignin component obtained during the bioconversion of aspenwood wastes. This utilization is necessary for the economic viability of the whole conversion process. The lignin obtained from steam pretreatment has been suggested to be of low molecular weight, reactive, and offer great potential as a raw material for utilization. This is in contrast to the lignins from traditional pulping operations. However previous to this work, characterizati- on of lignin separated after steam pretreatment of aspenwood under varying conditions (with and without acidic catalysts), has not been undertaken to substantiate these widely held beliefs. Neither has anyone identified the production of the type of lignin most suitable for various applications. A prerequisite for utilization of this material, therefore, has been to undertake this necessary characterization. A major emphasis of the work during this first year has been placed on the establishment of the analytical capability required to achieve the above goals. Following discussions with other researchers, such as Glasser and Lewis (Virginia Tech.), Chum (SERI), etc. we are confident the analytical methodology we have in place for lignin characterization and the assessment of planned modification reactions is as good as any other laboratory in the world.
PDF
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The characterization and utilization of lignin from pretreated lignocellulosic substrates : second interim report

https://library.fpinnovations.ca/en/permalink/fpipub2190
Author
Sutcliffe, Roger
Date
May 1987
Edition
38734
Material Type
Research report
Field
Bioproducts
PDF
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; and Dr. J.N. Saddler, Manager, Biotechnology Dept., at the Workshop on Aspen Pulp, Paper and Chemicals
Author
Sutcliffe, Roger
Date
May 1987
Edition
38734
Material Type
Research report
Physical Description
22 p.
Sector
Wood Products
Field
Bioproducts
Research Area
Biomass Conversion
Subject
Waste utilization
Utilization
Tires
Steam pretreatment
Steam
Solvents
Pretreatment
Lignin
Biomass
Binders
Aspen
Adhesives
Series Number
DSS contract file no. O2SQ.23216-4-6364
Location
Ottawa, Ontario
Language
English
PDF
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Characterizing aspen veneer for LVL/plywood products. Part 1. Stress grades of veneer|Characterizing aspen veneer for LVL/plywood products

https://library.fpinnovations.ca/en/permalink/fpipub1157
Author
Wang, Brad J.
Date
July 2001
Edition
37589
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Wang, Brad J.
Date
July 2001
Edition
37589
Material Type
Research report
Physical Description
14 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Veneer manufacturing
Veneer
Populus
Plywood manufacture
Plywood
Laminate product
Aspen
Series Number
W-1791
Location
Vancouver, British Columbia
Language
English
Abstract
In this work, the properties of aspen veneer from two mills (A and B) were compared. The comparisons between the incised veneer and non-incised veneer for mill A were made in terms of veneer thickness, ultrasonic propagation time (UPT), density and MOE. The aspen veneer was further characterized for LVL/plywood products by tailoring veneer grades to the requirements of final veneer products. In addition, MOE-based veneer stress grading and UPT-based veneer stress grading were compared for the aspen veneer. The advantages of MOE-based veneer stress grading over UPT-based veneer stress grading were identified in terms of veneer grade MOE and volume breakdown. The main results are summarized as follows: 1) Aspen veneer properties change from mill to mill. The differences in aspen veneer density and MOE between mill A and B are significant with mill A producing denser and stronger aspen veneer. 2) For aspen veneer in the mill A, the distribution shapes of veneer thickness, UPT, density and MOE between the non-incised and incised veneer are quite similar. Although the differences in veneer thickness, UPT and density between the non-incised veneer and incised veneer are identified as significant, the difference in veneer MOE is not significant due to the effect of both veneer UPT and density. The incised veneer has a slightly higher variation in thickness and is also slightly thicker compared to the non-incised veneer. This could due to the change of lathe settings or the property variation of aspen species as indicated with the veneer density variation. 3) Of the aspen veneer from mill A, using the optimum UPT thresholds, about 27.5 ~ 30.9% can be extracted through veneer stress grading to make 2.0 million psi LVL; about 43.4 ~ 59.9% can be sorted out for 1.8 million psi LVL; and the remaining 12.6 ~ 25.7% can be used for 1.5 million psi LVL or for plywood. It was also found that the incised aspen veneer generates 3.4% less of top stress grade G1 but 16.5% more of stress grade G2 compared to the non-incised aspen veneer if performing the optimum UPT-based stress grading. 4) The MOE-based veneer stress grading not only results in a smaller variation in MOE of each grade, but also higher volume percentages of stress grades G1 and G2 compared to the UPT-based veneer stress grading. This smaller variation in MOE of each stress grade will be very beneficial to the industry and structural applications since higher design stress can be assigned for the wood structural components. Also the higher percentages of stress grades G1 and G2 with the MOE-based veneer stress grading has significant economical implications and should be recognized by the industry. 5) To maximize mill profits, veneer sheets need to be periodically sampled and analyzed using the VGrader software. The optimum grading thresholds for the specific veneer can be established for on-line veneer stress grading based on the current market and requirements of final veneer products, providing a real solution to characterize and make best use of the specific veneer for LVL/plywood products.
Veneers - Manufacture - Tests
Populus - Veneers
Plywood - Manufacture
Lumber, Laminated veneer - Manufacture
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67 records – page 1 of 7.