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Assessment of physical and electrical characteristics of preservative-treated utility poles : corrosion of metallic hardness used in preservative treated poles

https://library.fpinnovations.ca/en/permalink/fpipub4857
Contributor
Department of Supply and Services
Forintek Canada Corp.
Date
January 1979
Edition
41675
Material Type
Research report
Field
Sustainable Construction
Contributor
Department of Supply and Services
Forintek Canada Corp.
Date
January 1979
Edition
41675
Material Type
Research report
Physical Description
16 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Utility poles
Preservatives
Poles
Physical properties
Alloy
Location
Ottawa, Ontario
Language
English
Abstract
Assessment
Physical Characteristics
Electrical Characteristics
Utility Poles
Preservative
Corrosion
Metallic Hardness
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Assessment of physical and electrical characteristics of preservative-treated utility poles : electrical resistances of utility poles

https://library.fpinnovations.ca/en/permalink/fpipub4859
Contributor
Department of Supply and Services
Forintek Canada Corp.
Date
January 1979
Edition
41677
Material Type
Research report
Field
Sustainable Construction
Contributor
Department of Supply and Services
Forintek Canada Corp.
Date
January 1979
Edition
41677
Material Type
Research report
Physical Description
13 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Utility poles
Treatment
Resistance
Preservatives
Poles
Physical properties
Location
Ottawa, Ontario
Language
English
Abstract
Assessment
Utility Poles
Physical Characteristics
Electrical Characteristics
Preservative-Treated
Electrical Resistance
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Assessment of physical and electrical eharacteristics of preservative-treated utility poles : hardness of treated utility poles

https://library.fpinnovations.ca/en/permalink/fpipub4858
Contributor
Department of Supply and Services
Forintek Canada Corp.
Date
January 1979
Edition
41676
Material Type
Research report
Field
Sustainable Construction
Contributor
Department of Supply and Services
Forintek Canada Corp.
Date
January 1979
Edition
41676
Material Type
Research report
Physical Description
18 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Utility poles
Preservatives
Poles
Physical properties
Location
Ottawa, Ontario
Language
English
Abstract
Utility Poles
Physical Characteristics
Electrical Characteristics
Preservative
Assessment
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Basic procedures for sampling and analyzing woody biomass

https://library.fpinnovations.ca/en/permalink/fpipub3318
Author
Marinescu, Marian
Volpé, Sylvain
Desrochers, Luc
Roser, Dominik
Date
January 2015
Edition
39982
Material Type
Research report
Field
Bioproducts
PDF
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Author
Marinescu, Marian
Volpé, Sylvain
Desrochers, Luc
Roser, Dominik
Date
January 2015
Edition
39982
Material Type
Research report
Physical Description
15 p.
Sector
Forest Operations
Field
Bioproducts
Research Area
Building Systems
Subject
Biomass
Bioenergy
Sampling
Physical properties
Moisture content
Particle size
Bulk density
Standards
Advantage
Series Number
Advantage ; Vol. 15, No. 5
Language
English
Abstract
Biomass sampling and analysis play decisive roles in determining the characteristics and value of the woody biomass fuel used in bioenergy systems in Canada. Sampling and analysis standards help harmonize the procedures that are used to monitor biomass quality. Because there are no Canada- wide biomass sampling standards, facilities that produce and use woody biomass have developed and implemented in-house sampling procedures of varying degrees of complexity. Given that the use of woody biomass in Canada is predicted to increase, the ability to ensure the quality of biomass will become increasingly important in order to control costs and maximize system efficiency.
BIOMASS
Biofuels
Bioenergy
MOISTURE CONTENT
BULK DENSITY
Bark content
Contamination
ASH
Lignin
CARBOHYDRATES
EXTRACTIVES
Abstract
L’échantillonnage et l’analyse de la biomasse jouent un rôle décisif dans la détermination des caractéristiques et de la valeur des combustibles de biomasse ligneuse utilisés dans les systèmes de bioénergie au Canada. Les normes d’échantillonnage et d’analyse contribuent à harmoniser les méthodes utilisées pour évaluer la qualité de la biomasse. Il n’existe pas de normes d’échantillonnage pancanadiennes; les usines qui produisent ou utilisent la biomasse ligneuse ont donc élaboré et appliqué des méthodes d’échantillonnage maison de niveau de complexité variable. Comme on prévoit une augmentation de l’utilisation de la biomasse ligneuse au Canada, les compétences permettant de garantir sa qualité deviendront de plus en plus importantes pour limiter les coûts et maximiser l’efficacité des systèmes.
PDF
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Basic wood properties of second-growth sitka spruce

https://library.fpinnovations.ca/en/permalink/fpipub5534
Author
Jozsa, Les A.
von Schilling, B.
Sen, P.
Date
January 1993
Edition
37459
Material Type
Research report
Field
Sustainable Construction
Author
Jozsa, Les A.
von Schilling, B.
Sen, P.
Contributor
British Columbia. Ministry of Forests. Queen Charlotte Forest District.
Date
January 1993
Edition
37459
Material Type
Research report
Physical Description
38 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Second growth
Picea
Physical properties
Mechanical properties
Growth
Series Number
W-1446
Location
Vancouver, British Columbia
Language
English
Abstract
The basic wood properties of 45-year-old second-growth sitka spruce were examined to determine if rapid growth produces poor wood quality. Five dominant and codominant trees were sampled from each of four stands with stocking densities of 520, 640, 1080, and 1520 stems/ha. Stem size, extent of live crown, yearly wood relative density trends, and longitudinal shrinkage were measured.
Picea sitchensis - Mechanical properties
Picea sitchensis - Physical properties
Second growth
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Basic wood properties of second-growth western hemlock

https://library.fpinnovations.ca/en/permalink/fpipub5879
Author
Jozsa, Les A.
Munro, B.D.
Gordon, J.R.
Date
March 1998
Edition
41165
Material Type
Research report
Field
Sustainable Construction
Author
Jozsa, Les A.
Munro, B.D.
Gordon, J.R.
Date
March 1998
Edition
41165
Material Type
Research report
Physical Description
51 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Tsuga Heterophylla
Tsuga
Second growth
Quality control
Qualitative analysis
Physical properties
Growth
Series Number
Special Publication ; SP-38
W-1444
Location
Victoria, British Columbia
Language
English
Abstract
This report describes some of the background and results of work done to date on second-growth western hemlock basic wood properties at Forintek Canada Corp. The B.C. Ministry of Forests (BCMOF) Research Branch, UBC Forestry Faculty and PAPRICAN were the other cooperating agencies on this project and they investigated live crown/tree growth relationships, strength properties of small clears, and pulping properties, respectively. Properties that were assessed by Forintek, both within and between trees include: relative density of wood, shrinkage, moisture content and relative proportion of heartwood-sapwood, bark thickness, content and distribution of compression wood, incidence and degree of spiral grain, incidence and severity of brown stain, and strength properties of small cleear bending samples. Naturally grown 90-year-old western hemlock stands represent much of the emerging timber supply in the B.C. coastal forest region. Information characterizing the commercial quality of this resource is needed now to support processing and marketing decisions and for product promotion. In addition, the BCMOF and industry members are making stand management decisions today which will determine the future quality of western hemlock. We can reduce the risk of making wrong investment decisions by providing information on how different growing conditions (e.g., biogeoclimatic zone, site, stand density, thinning) affect second-growth wood quality.
Second growth
Tsuga heterophylla - Physical properties
Growth - Influence on quality
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Caractéristiques cruciales de la biomasse pour les applications les plus courantes en bioénergie et biocarburants

https://library.fpinnovations.ca/en/permalink/fpipub3102
Author
Marinescu, Marian
Date
September 2013
Edition
39759
Material Type
Research report
Field
Bioproducts
PDF
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Author
Marinescu, Marian
Date
September 2013
Edition
39759
Material Type
Research report
Physical Description
12 p.
Sector
Forest Operations
Field
Bioproducts
Research Area
Building Systems
Subject
Biomass
Bioenergy
Moisture content
Physical properties
Advantage
Series Number
Avantage ; Vol. 14, No. 3
Language
French
ISSN
14933381
Abstract
Le présent document décrit les caractéristiques cruciales de la biomasse comme le format et la taille, la teneur en dumidité, la densité apparente, la teneur en feuillage/écorce, la contamination, la teneur en cendres, en lignine, en dydratesde carbone et en produitsd'extraction ainsi que la valeur calorifique pour les applications les plus courantes de production de bioénergie et de biocarburants : combustions directe, gazéification, pyrolyse, torréfacgtion, fermentation et densification. Le document est distiné aux professionnels de la foresterie, de la transformation du bois, des pâtes et papiers et de la biomasse qui cherchent de l'information de base sur ces caractéristiques essentielles.
PDF
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Chemical composition and physical properties of the products from high pressure steaming and explosive decomposition of lignocellulosic material

https://library.fpinnovations.ca/en/permalink/fpipub2224
Contributor
Forintek Canada Corp.
Date
January 1980
Edition
38770
Material Type
Research report
Field
Bioproducts
PDF
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3ĉ F CHEMICAL COMPOSITION AND PHYSICAL PROPERTIES OF THE PRODUCTS FROM HIGH PRESSURE STEAMING
Contributor
Forintek Canada Corp.
Date
January 1980
Edition
38770
Material Type
Research report
Physical Description
70 p.
Sector
Wood Products
Field
Bioproducts
Research Area
Biomass Conversion
Subject
Steam
Pressure
Physical properties
Chemical composition
High Pressure Steam
Explosive Decomposition
Lignocellulosic Material
Series Number
65-80-528
Location
Ottawa, Ontario
Language
English
PDF
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Confirmation of stand density effects on lodgepole pine wood characteristics

https://library.fpinnovations.ca/en/permalink/fpipub5514
Author
Middleton, G.R.
Jozsa, Les A.
Munro, B.D.
Sen, P.
Date
July 1995
Edition
37389
Material Type
Research report
Field
Sustainable Construction
Author
Middleton, G.R.
Jozsa, Les A.
Munro, B.D.
Sen, P.
Contributor
British Columbia Ministry of Forests. Silviculture
Date
July 1995
Edition
37389
Material Type
Research report
Physical Description
34 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Stands
Quality control
Qualitative analysis
Pinus contorta
Pinus
Physical properties
Growth
Series Number
W-1234
Location
Vancouver, British Columbia
Language
English
Abstract
In a previously completed study, lumber obtained from a 95-year old lodgepole pine sample representing a final stand density of 700 live stems/hectare (s/ha) was found to have relatively low modulus- of-rupture (MOR) and modulus of elasticity (MOE). It was determined that this resulted from lower than average basic wood density, and larger than average knot size particularly in large diameter trees. It was also determined that average MOR and MOE could be predicted to some extent (R2 > .60) on the basis of tree diameter-at-breast height (d.b.h.) and breast-height average basic wood density. Before accepting the above results as typical of lodgepole pine of similar age and final stand density, it was considered important to compare the relationships between d.b.h. and breast-height wood density observed in this 700 s/ha sample with that of trees in open-stand-densities in other regions. Average branch size added only marginally to explained variation in the predictive equation, but knot size is known to effect lumber strength. Thus a measure of branch size was included in the current study plan. Biogeoclimatic zones were chosen as the basis for regional comparisons. A minimum of 30 trees were selected from open-stand sites in each of the following five biogeoclimatic zones: Montane Spruce (MS), Engelmann Spruce-Subalpine Fir (ESSF), Interior Douglas-Fir (IDF), Interior Cedar-Hemlock (ICH) and Sub-Boreal Spruce (SBS). Sampling was systematic by d.b.h. to ensure representation of small, medium and large diameter trees. Stem counts were made in 1/200 ha plots around each sample tree to ensure that samples were indicative of a relatively open stand density. Average basic wood density at breast height was determined from two pith-to-bark increment cores obtained from each sample tree. The size and height of the largest branch in the first 5 m of tree height was measured and recorded. Average basic wood density values and estimates of branch size obtained for the five samples in this study were compared to the values and estimates obtained from the original 700 s/ha sample site. Basic wood density obtained from three of the sites was not significantly different from that of the 700 s/ha sample. It was significantly higher in one site (ICH) and significantly lower in another (ESSF). The higher wood density was possibly the result of a slower growth rate to 30 years combined with older average tree age. The significantly lower wood density was attributed to a younger average stand age (80 years). Basic wood density showed a consistent relationship with d.b.h. in all of the tree samples, tending down as d.b.h. increased. There was a less consistent relationship between knot size and d.b.h. but what relationship there was would serve to reinforce the effect of differences in wood density on lumber strength and stiffness. Average size of the largest knots was smallest in the tree sample where wood density was highest, and largest in the sample where wood density was lowest. Important lumber strength determining tree characteristics (wood density and knot size) that resulted in the low MOE and MOR at the original 700 s/ha sample site were found to be unexceptional when compared to trees of similar age and final stand densities in other biogeoclimatic zones. Although a slower than average growth rate to 30 years offers a plausible explanation for the higher than expected wood density in the ICH sample, further investigation is recommended.
Pinus contorta Dougl. var. latifolia - Density
Density - Influence on physical properties
Stand density
Growth - Influence on quality
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Critical biomass attributes of the most common bioenergy and biofuel applications

https://library.fpinnovations.ca/en/permalink/fpipub39735
Author
Marinescu, Marian
Date
September 2013
Material Type
Research report
Field
Bioproducts
PDF
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Author
Marinescu, Marian
Date
September 2013
Material Type
Research report
Physical Description
12 p.
Sector
Forest Operations
Field
Bioproducts
Research Area
Building Systems
Subject
Biomass
Bioenergy
Moisture content
Physical properties
Advantage
Series Number
Advantage ; Vol. 14, No. 3
Language
English
ISSN
14933381
Abstract
This primer presents critical attributes such as format and size; moisture content; bulk density; foliage/bark content; contamination; ash, lignin, carbohydrate, and extractive contents; and calorific value of the most common bioenergy and biofuel applications; direct combustion, gasification, pyrolysis, torrefaction, fermentation, and densification. The primer is aimed at forestry, wood processing, pulp and paper, and biomass professionals who are interested in basic information about these critical attributes.
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46 records – page 1 of 5.