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Resource assessment program development: problem analysis

https://library.fpinnovations.ca/en/permalink/fpipub923
Author
Middleton, G.R.
Date
March 1992
Edition
37283
Material Type
Research report
Field
Sustainable Construction
Author
Middleton, G.R.
Date
March 1992
Edition
37283
Material Type
Research report
Physical Description
14 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Wood quality
Wood
Utilization
Research
Renewable natural resources
Quality control
Qualitative analysis
Growth
Series Number
Forestry Canada No. 25
Contract no. 1212K020
W-936
Location
Vancouver, British Columbia
Language
English
Abstract
Forest resource issues in Canada vary by region, but in general, the forest industry is faced with a continuing decline in the volume and quality of available timber. Doing more with less will be the key to profitability. Changing, and increasingly fragmented markets, mean that industry must have improved information descriptive of the end- product potential of the current forest resource. Rapidly increasing expenditures on stand management make it imperative that governments and industry be provided with information describing how present silvicultural practices will impact on future wood quality. In some regions, where managed forests are approaching rotation age, information is needed to help industry examine its options for harvesting, processing and marketing this emerging resource. Forintek Canada Corp. has established a national program of resource assessment to meet the need for information that will permit the consideration of wood quality in processing, marketing and stand management decisions. The objective of this problem analysis was to ensure that resource characterization research is structured such that results of interdisciplinary work, done within Forintek or by cooperating agencies, can be successfully integrated to provide comprehensive answers to resource utilization and stand management questions. This report describes the development of the resource assessment research program, the goals established for it and the framework within which they will be accomplished.
Renewable natural resources
Utilization - Research
Wood quality
Growth - Influence on quality
Forest products - Research
Documents
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Bending strength properties of incised and preservative treated commercial 2 x 4 western softwood lumber

https://library.fpinnovations.ca/en/permalink/fpipub924
Author
Palka, L.C.
Morris, Paul I.
Walser, D.C.
Date
March 1992
Edition
37284
Material Type
Research report
Field
Sustainable Construction
Author
Palka, L.C.
Morris, Paul I.
Walser, D.C.
Date
March 1992
Edition
37284
Material Type
Research report
Physical Description
28 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Preservation
Mechanical properties
Series Number
Forestry Canada No. 4
Contract no. 1712K007
W-937
Location
Vancouver, British Columbia
Language
English
Abstract
This study evaluated the effect of two different incisors followed by chromated copper arsenate pressure treatment on the bending strength and stiffness of No. 2 and better nominal 2 x 4 inch (38 x 89 mm) spruce-pine-fir and hem-fir lumber. The double-density incising method, developed at Forintek, allows SPF to meet the CSA O80 wood preservation standards. The high-speed incisor was developed by Forintek for operation immediately behind the planer in a sawmill to produce a treatable lumber product. The prototype tested here employed two solid rollers to lay down two superimposed patterns of incisions at a density of 17500/m2. Approximately 2900 specimens of SPF and 1200 specimens of hem-fir were sorted into nine and four matched groups, respectively, according to their average flatwise modulus of elasticity values tested in centre point bending. The matched groups were then given various combinations of drying, incising and pressure treatments. Bending strength properties were tested. It was found that kiln-dried SPF and green hem-fir commercial dimension lumber, treated by the above processes, can be safely used for all structural purposes for which preservative treatment is required.
Preservation - Influence on mechanical properties
Preservation - Incising
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Resistance of mechanical connections to seismic loads : wood-to-concrete anchor bolts

https://library.fpinnovations.ca/en/permalink/fpipub982
Author
Stieda, C.K.A.
Date
February 1992
Edition
37356
Material Type
Research report
Field
Sustainable Construction
Author
Stieda, C.K.A.
Date
February 1992
Edition
37356
Material Type
Research report
Physical Description
3 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Building construction
Series Number
W-1142
Location
Vancouver, British Columbia
Language
English
Abstract
This Simple Progress Report combines the results of two separate 92/93 projects on the behaviour of nailed and bolted connections for wood structures subjected to seismic loads.
Earthquakes, Effect on building construction
Documents
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Optimisation du delignage et de l'eboutage

https://library.fpinnovations.ca/en/permalink/fpipub41621
Author
Mongeau, J.-P.
Date
March 1992
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Mongeau, J.-P.
Date
March 1992
Material Type
Research report
Physical Description
8 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Trimming
Simulation
Saw mills
Positioning
Optimization
Logs
Algorithms
Series Number
Forestry Canada No. 47
E-1909
Location
Sainte-Foy, Québec
Language
French
Abstract
Ce projet consiste a diriger en collaboration avec un professeur de l'Universite Laval une etudiante inscrite a la maitrise au departement d'informatique de la Faculte des sciences. Le sujet de la recherche concerne l'optimisation des operations de delignage et d'eboutage. Ce rapport fait etat de l'avancement des travaux.
Sawmill Simulation
Edging Optimization
Trimming Optimization
Dynamic Programming Technique
Log positioning - Simulation
Algorithms
Documents
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Moisture/thermal performance of walls as affected by air tightness : Progress report

https://library.fpinnovations.ca/en/permalink/fpipub41552
Author
Onysko, D.M.
Date
March 1992
Material Type
Research report
Field
Sustainable Construction
Author
Onysko, D.M.
Date
March 1992
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Walls
Thermal analysis
Performance
Series Number
Forestry Canada No. 9
E-1287
Location
Ottawa, Ontario
Language
English
Abstract
Walls
Thermal Performance
Documents
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Developpement d'un algorithme de tronconnage optimise adapte aux bois de petites dimensions : rapport d'etape

https://library.fpinnovations.ca/en/permalink/fpipub41565
Author
Grondin, Michel
Mongeau, J.-P.
Levesque, Y.
Thibault, R.
Date
March 1992
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Grondin, Michel
Mongeau, J.-P.
Levesque, Y.
Thibault, R.
Date
March 1992
Material Type
Research report
Physical Description
48 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Small logs
Process control
Optimization
Logs
Series Number
E-1385
Location
Sainte-Foy, Québec
Language
French
Abstract
Ce projet consiste a diriger, en collaboration avec un professeur de l'Universite Laval, un etudiant inscrit a la maitrise au Departement des sciences du bois de la Faculte de foresterie et de geomatique. L'objet de la recherche vise a developper un algorithme pour l'optimisation du tronconnage des tiges. Ce rapport fait etat de l'avancement de travaux.
Small Logs
Process control
Optimization
Models
Documents
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Modele integre d'optimisation des parametres de la conception et de l'operation des scieries : rapport d'etape

https://library.fpinnovations.ca/en/permalink/fpipub41566
Author
Mongeau, J.-P.
Date
March 1992
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Mongeau, J.-P.
Date
March 1992
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Saw mills
Process control
Optimization
Series Number
E-1386
Location
Sainte-Foy, Québec
Language
French
Abstract
Ce projet consiste a diriger en collaboration avec deux professuers de l'Universite Laval un etudiant inscrit au doctorat au departement des science du bois de la Faculte de foresterie et de geomatique. Le but de la recherche est de mettre sur pied et valider une methode systemique de diagnostic des usines de sciage. Ce rapport fait etat de l'avancement des travaux.
Sawmilling
Process control
Optimization
Models
Documents
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Un nouveau modele de simulation du debitage : dossier de publications

https://library.fpinnovations.ca/en/permalink/fpipub41567
Author
Mongeau, J.-P.
Grondin, Michel
Levesque, Y.
Thibault, R.
Date
March 1992
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Mongeau, J.-P.
Grondin, Michel
Levesque, Y.
Thibault, R.
Date
March 1992
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Models
Series Number
E-1387
Location
Sainte-Foy, Québec
Language
French
Abstract
Ce rapport presente les publications traitant de la simulation du debitage qui ont ete soumises a diverses revues.
Modele de simulation
Documents
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Un nouveau modele de simulation du debitage : rapport d'etape

https://library.fpinnovations.ca/en/permalink/fpipub41568
Author
Mongeau, J.-P.
Grondin, Michel
Levesque, Y.
Thibault, R.
Date
March 1992
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Mongeau, J.-P.
Grondin, Michel
Levesque, Y.
Thibault, R.
Date
March 1992
Material Type
Research report
Physical Description
77 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Simulation
Sawing
Series Number
E-1388
Location
Sainte-Foy, Québec
Language
French
Abstract
Ce rapport presente les bases de developpement d'un nouveau modele de simulation du debitage. Un portrait des modeles existants est presente dans le deuxieme chapitre. Ce portrait permet d'identifier les lacunes majeures de ces modeles et des objectifs de developpement qui vise a corriger ces lacunes sont proposes. Le troisieme chapitre presente une revue exhaustive de la litterature scientifique traitant de la simulation du debitage. Le cinquieme chapitre fait une description des principales composantes d'un prototype du modele presentement en developpement au Groupe Forintek-Laval.
Sawing Simulation
Model
Documents
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Etude de modeles geometriques utilises dans l'informatisation des scieries

https://library.fpinnovations.ca/en/permalink/fpipub41570
Author
Mongeau, J.-P.
Beauregard, R.
Date
March 1992
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Mongeau, J.-P.
Beauregard, R.
Date
March 1992
Material Type
Research report
Physical Description
77 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Models
Series Number
E-1391
Location
Sainte-Foy, Québec
Language
French
Abstract
Ce rapport presente une etude de l'exactitude de modeles geometriques utilises avec divers types de scanners. Plus de 100 sections provenant de cinq tiges ont ete digitalisees ("scannees") sous 36 angles equidistants qui couvraient le cercle. Ces images digitalisees ont servi a simuler les lectures prises par les scanners infrarouge (rideau de lumiere) ou camera de 1 axe, 2 axes, 3 axes et 4 axes. Un test que consistait a superposer l'image de la section a l'image du modele geometrique a permis de calculer l'aire de la section qui etait bien representee par le modele, l'aire de la section qui etait perdue et l'aire de la section qui etait ajoutee par le modele. Les 36 positions des diverses sections ont permis de tester la sensibilite des modeles a l'orientation de la section. Le regroupement des valeurs d'aire calculee a permis de determiner la sensibilite des modeles a la position de la section sur la tige et de comparer les modeles selon le type d'utilisation que l'on en fait. Ce rapport presente aussi les bases theoriques (equations) des divers modeles.
Les conclusions sont que pour le classement des billes selon le diametre, un modele pour scanner un axe est suffisant. Cependant, il a ete demontre qu'un modele 1 axe couramment utilise dans l'industrie de l'est du Canada n'est pas satisfaisant pour la mesure des volumes. Le modele ideal pour le cubage est un modele lie aux scanners a deux axes. Enfin, le modeles que nous recommandons pour le positionnement en vue de l'automatisation ou de l'optimisation du premier debitage est un modele lie aux scanners a trois axes. Le peu de difference entre les modeles pour scanner a trois axes et quatre axes ne justifie pas l'emploi de ces derniers. Pour combler un besoin plus grand d'exactitude, nous recommandons l'utilisation d'une autre technologie que les scanners infrarouge ou camera.
Etude
Modeles Geometrique
Documents
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Le sechage a haute temperature : conditions de sechage et qualite du bois : rapport d'etape

https://library.fpinnovations.ca/en/permalink/fpipub41571
Author
Cloutier, Alain
Date
Mars 1992
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Cloutier, Alain
Date
Mars 1992
Material Type
Research report
Physical Description
44 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood quality
Wood
Quality control
Qualitative analysis
Drying
High temperature
Series Number
E-1392
Location
Sainte-Foy, Québec
Language
French
Abstract
High Temperature Drying
Wood quality
Documents
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Increasing accuracy and insight of sawmill simulations : progress report

https://library.fpinnovations.ca/en/permalink/fpipub41572
Author
Harless, T.E.G.
Date
March 1992
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Harless, T.E.G.
Date
March 1992
Material Type
Research report
Physical Description
13 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Simulation
Saw mills
Sawing
Series Number
E-1393
Location
Sainte-Foy, Québec
Language
English
Abstract
Sawmill Simulation
Sawing accuracy
Documents
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Potential for the reuse of preservative treated wood

https://library.fpinnovations.ca/en/permalink/fpipub41583
Author
Pfaff, Frank
Doyle, Edward E.
Date
May 1992
Material Type
Research report
Field
Sustainable Construction
Author
Pfaff, Frank
Doyle, Edward E.
Date
May 1992
Material Type
Research report
Physical Description
21 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Wood
Treatment
Recycling
Preservatives
Canada
Series Number
E-1410
Location
Ottawa, Ontario
Language
English
Abstract
The treatment of wood products with wood preservatives is a necessary and accepted practice for the appropriate use of wood under conditions that favour fungal attack and decay. The environmental risks posed by treated products such as poles and railway ties are not fully assessed, buy within the context of available data, it appears that the contamination of soil, ground water and surface water by products in service is insignificant to undetectable. The socio-economic benefits outweigh and potential risk. This is not to imply that wood preservatives can be taken lightly. They are toxic and contain chemicals that are identified as restricted or hazardous by Federal and Provincial environmental protection acts. The concern, however, is founded on the hazards associated with the manufacture, use and disposal of these preservatives, rather than the risk of environmental contamination by wood products in service.
Preservative Treated Wood - Recycling
Canada. Green Plan
Preservatives - Environmental Aspects
Documents
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Field testing of wood preservatives in Canada : 2 : commodity testing at Kincardine termite test plot

https://library.fpinnovations.ca/en/permalink/fpipub41584
Author
Doyle, Edward E.
Date
October 1992
Material Type
Research report
Field
Sustainable Construction
Author
Doyle, Edward E.
Date
October 1992
Material Type
Research report
Physical Description
15 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Wood preservatives
Wood
Testing
Test methods
Termites
Preservatives
Canada
Location
Ottawa, Ontario
Language
English
Abstract
As part of the eastern field testing program, Forintek Canada Corp. established the first Canadian termite test plot at Kincardine, Ontario in 1988 to address an industry need for performance data on treated wood commodities exposed to attack by the eastern subterranean termite. CCA-C and ACA treated red pine, jack pine, lodgepole pine, eastern spruce and SPF lumber of various dimensions was obtained directly from the wood treating industries or purchased from retail outlets for installation in the test plot. The material represents a wide range of treatment penetrations and assay retentions. After four years in service, the performance of untreated controls shows a continuing high level of termite activity in the main plot area, but a lower level in an annex area. A fairly high incidence of surface grazing was observed on much of the CCA-C treated lumber in the main plot. Although this superficial attack resulted in only cosmetic damage in most cases, there were a number of test pieces in which termites had clearly broken through the treated zone and were attacking untreated wood within the treated shell. Since most of this attack was found on non-incised CCA-C treated lumber with very shallow preservative penetration, this material was considered to be vulnerable to termite attack. Incised CCA-C treated and non-incised ACA treated lumber which came closer to meeting the CSA080 standard for ground contact applications continue to perform well and was considered to be resistant to termite attack. Copper naphthenate field cut preservative was also found to provide good protection againds termite attack.
Wood Preservatives - Canada - Field Testing
Termites - Test Plots
Documents
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Investigation of premature decay in penta treated poles

https://library.fpinnovations.ca/en/permalink/fpipub41589
Author
Morris, Paul I.
McAfee, B.J.
Date
February 1992
Material Type
Research report
Field
Sustainable Construction
Author
Morris, Paul I.
McAfee, B.J.
Contributor
Bell Canada
Date
February 1992
Material Type
Research report
Physical Description
44 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Wood decay
Wood
Preservation
Poles
Pentachlorophenol
Penetration
Location
Ottawa, Ontario
Language
English
Abstract
A total of about 850 PCP-treated southern pine poles from four supplier/year combinations were inspected by a contractor. Their core samples were cultured to isolate wood-rotting basidiomycetes and thin sections were examined under the microscope. The incidence of decay based on inspections and basidiomycete isolates, excluding S. brinkmanii, was 4% for TDL-85s, 3% for TDL-86s and 1% for TD4-85s. Microscopic examination revealed comparatively little damage in the groundline region. This was consistent with the lower frequency of isolation of basidiomycetes at the groundline compared to the Bell attachment position. It was also consistent with the distribution of decay and extensive end-grain penetration of preservative found in the intensive examination of selected poles. Conclusive evidence for pretreatment infection as the origin of the decay problem came from the pattern of dacay found in the intensive examination. This origin would also explain the distribution of fungi in the poles in service and the failure of some poles, due to decay, within five years of installation. At least 3% TDL-85s could continue to lose strength unless there is sufficient preservative retention and penetration to prevent this.
Poles - Failure
Preservation - Penetration
Pentachlorophenol
Wood Decaying Fungi
Documents
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Modélisation du séchage du bois : rapport d'étape

https://library.fpinnovations.ca/en/permalink/fpipub41609
Author
Cloutier, Alain
Date
March 1992
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Cloutier, Alain
Date
March 1992
Material Type
Research report
Physical Description
100 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood drying
Wood
Systems
Simulation
Drying
Kilns
Series Number
Forestry Canada No. 39
E-1794
Location
Sainte-Foy, Québec
Language
French
Abstract
Une evolution technologique rapide des equipements employes pour le sechage du bois a eu lieu pendant les dix dernieres annees suite a l'introduction de la micro-informatique dans les systemes de controle des sechoirs. Toutefois, ces systemes sont encore largement bases sur des connaissances empiriques et des parametres mesures dans le sechoir et non pas dans le bois. La prochaine etape dans le developpement des systemes informatises de controle des sechoirs consiste a mettre au point des modeles de simulation de l'envolution de la teneur en humidite, de la temperature et du developpement des contraintes et des deformations dans le bois lors du sechage. Cette information pourra etre utilisee pour prendre des decisions relatives aux conditions de sechage. Les objectifs de ce projet sont donc, premierement de developper un modele integre de transfert de chaleur, transfert de masse, contraintes et deformations dans le bios au cours du sechage et deuxiemement, de former des etudiants gradues au niveau de la maitrise et du doctorat dans le domaine du sechage du bois. La strategie de realisation du projet se resume par les cinq etapes suivantes: 1) Modelisation du transfert de chaleur et de masse dans le bois lors du sechage, 2) Modelisation du developpement des contraintes et des deformations induites lors du sechage, 3) Couplage du modele de transfert de chaleur et de masse au modele de developpement des contraintes et des deformations, 4) Integration du modele dans un systeme de controle de sechoir informatise, 5) Developpement d'un modele d'ecoulement de l'air dans les sechoirs.
Kiln Controllers
Expert systems
Wood Drying
Simulation
Models
Documents
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Maintenance of the culture collection of wood inhabiting fungi

https://library.fpinnovations.ca/en/permalink/fpipub41561
Author
McAfee, B.J.
Date
March 1992
Material Type
Research report
Field
Sustainable Construction
Author
McAfee, B.J.
Date
March 1992
Material Type
Research report
Physical Description
6 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Sapstain
Series Number
Forestry Canada No. 38
E-1360
Location
Ottawa, Ontario
Language
English
Abstract
Basidiomycetes
Sapstains
Documents
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Avancement des travaux : projet d'optimisation d'une raboteuse : annee 1991-92

https://library.fpinnovations.ca/en/permalink/fpipub2257
Author
LeBlanc, G.
Date
August 1992
Edition
38805
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
LeBlanc, G.
Date
August 1992
Edition
38805
Material Type
Research report
Physical Description
21 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Digitalization
Subject
Planers
Planing
Optimization
Series Number
E-2718
Location
Ottawa, Ontario
Language
French
Abstract
Planers - Optimization
Planing
Raboteuse - Optimization
Documents
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Borate preservative for waferboard/OSB siding : progress report

https://library.fpinnovations.ca/en/permalink/fpipub4745
Author
Pfaff, Frank
Date
March 1992
Edition
41551
Material Type
Research report
Field
Sustainable Construction
Author
Pfaff, Frank
Date
March 1992
Edition
41551
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Flakeboards
Treatment
Steam
Resin
Pressing
Preservatives
Series Number
Forestry Canada No. 1
E-1274
Location
Ottawa, Ontario
Language
English
Abstract
Preservative-Treated Flakeboard
Borate-Compatible Resin
Steam-Injection Pressing
Documents
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Duration of load effects on 2 x 4 spruce lumber in bending, tension and compression: fifth (final) combined data report. April 1991 to March 1992

https://library.fpinnovations.ca/en/permalink/fpipub5496
Author
Karacabeyli, Erol
Stroh, L.
Date
March 1992
Edition
37269
Material Type
Research report
Field
Sustainable Construction
Author
Karacabeyli, Erol
Stroh, L.
Date
March 1992
Edition
37269
Material Type
Research report
Physical Description
24 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Tension
Strength load bearing
Compression
Bending
Mechanical properties
Picea
Loads
Series Number
Forestry Canada Contract
Contract no. 1565K402
W-908
Location
Vancouver, British Columbia
Language
English
Abstract
This report is the fifth (and final) combined data report in a series of reports containing constant bending, tension and compression test results, prepared annually in partial fulfilment of the requirements of a Forestry Canada/Forintek Canada Corp. contract.
Strength - Load bearing - Influence of duration
Strength - Bending
Strength - Compression
Strength - Tension
Picea - Strength
Documents
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117 records – page 1 of 6.