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63 records – page 1 of 7.

Air tightness of one type of hardboard siding: first of 2 reports

https://library.fpinnovations.ca/en/permalink/fpipub5904
Author
Onysko, D.M.
Jones, S.K.
Date
March 1988
Edition
41506
Material Type
Research report
Field
Sustainable Construction
Author
Onysko, D.M.
Jones, S.K.
Date
March 1988
Edition
41506
Material Type
Research report
Physical Description
32 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Siding
Measurement
Materials
Building materials
Building construction
Air
Series Number
CFS project no.15
Project no.4310C016
E-785
Location
Ottawa, Ontario
Language
English
Abstract
Air Leakage - Measurement
Siding - Hardboard
Building construction - Moisture determination
Building materials - Hardboard siding
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Air tightness of two walls sprayed with polyurethane foam insulation

https://library.fpinnovations.ca/en/permalink/fpipub5905
Author
Onysko, D.M.
Jones, S.K.
Date
March 1988
Edition
41507
Material Type
Research report
Field
Sustainable Construction
Author
Onysko, D.M.
Jones, S.K.
Date
March 1988
Edition
41507
Material Type
Research report
Physical Description
22 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Walls
Testing
Measurement
Materials
Building construction
Air
Series Number
CFS project no.15
Project no.4310C016
E-786
Location
Ottawa, Ontario
Language
English
Abstract
Foam, Urethane - Testing
Insulating Materials - Moisture - Measurement
Building construction - Light frame - Testing
Walls - Air Leakage
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Analysis and characterization of forest materials as a fuel source

https://library.fpinnovations.ca/en/permalink/fpipub1826
Author
Kryla, J.M.
Date
March 1983
Edition
38346
Material Type
Research report
Field
Sustainable Construction
Author
Kryla, J.M.
Date
March 1983
Edition
38346
Material Type
Research report
Physical Description
22 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Wood waste
Wood
Research
Power supply
Energy
Measurement
Biomass
Series Number
6043250
E-1099
Location
Ottawa, Ontario
Language
English
Abstract
Wood Waste - Combustion - Measurement
Wood Waste as Fuel - Research
Forest Biomass - Combustion - Measurement
Calorific power
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Characterizing thickness and roughness of green and dry veneers with new laser-based measurements

https://library.fpinnovations.ca/en/permalink/fpipub5780
Author
Wang, Brad J.
Zhang, H.
Groves, C. Kevin
Zhou, G.
Wu, L.
Date
May 2014
Edition
39834
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Wang, Brad J.
Zhang, H.
Groves, C. Kevin
Zhou, G.
Wu, L.
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
May 2014
Edition
39834
Material Type
Research report
Physical Description
21 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Measurement
Thickness
Veneer
Series Number
W-3098
Language
English
Abstract
A new laser-based system was successfully developed in the pilot plant for veneer thickness and roughness measurements. This system was tested for both green and dry spruce veneer. The comparisons were made between the green veneer measurement and dry veneer measurement, and between the laser-based system measurement and actual digital measurement. A linear mixed effect model was used to estimate the within-sheet and between-sheet variations of veneer thickness and roughness and their causes. A good correlation was found between the laser-measured thickness and caliper-measured thickness. The laser-measured average roughness could also capture the trend of veneer surface roughness determined by the visual classification. Thus, the new laser-based system can be a useful tool for measuring both veneer thickness and roughness. For veneer thickness, the within-sheet variation seemed to be larger than the between-sheet variation, and the laser-based measure had a larger variation than the digital-based measure for both green and dry veneer sheets. With the green veneer, higher veneer moisture content and density would lead to a larger difference between the two measurements. The laser-based method tended to classify more "thick" sheets than the digital-based method, but this tendency was not obvious with the dry veneer. Such tendency also became negligible by factoring in either veneer moisture content or density. Thus, in the real applications, the accuracy of the new laser system can be improved for measuring green veneer thickness with a calibration of moisture content and/or density. For veneer roughness, the within-sheet variation was again larger than the between-sheet variation, and the dry veneer had a larger variation than the green veneer. Further, the tight side variation was generally larger than the loose side variation. The above information is deemed useful for establishing an overall veneer quality criterion for industrial applications. Further work is scheduled to adopt the new laser-based system for real-time measurement of green veneer thickness and roughness.
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Circumferential variability of relative density in lodgepole pine

https://library.fpinnovations.ca/en/permalink/fpipub861
Author
Gonzalez, J.S.
Date
March 1987
Edition
37204
Material Type
Research report
Field
Sustainable Construction
Author
Gonzalez, J.S.
Date
March 1987
Edition
37204
Material Type
Research report
Physical Description
18 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Pinus contorta
Pinus
Measurement
Series Number
CFS No. 34;04-55-12-156
W-508
Location
Vancouver, British Columbia
Language
English
Abstract
Pinus contorta Dougl. var. latifolia - Density
Density - Measurement
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Computer-aided image system for analyzing cracks created by nailing in wood

https://library.fpinnovations.ca/en/permalink/fpipub38221
Author
Lau, P.W.C.
Tardif, Y.G.
Date
March 1988
Material Type
Research report
Field
Sustainable Construction
Author
Lau, P.W.C.
Tardif, Y.G.
Date
March 1988
Material Type
Research report
Physical Description
15 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Wood
Measurement
Series Number
CFS project no.17a
Project no.4310C025
E-760
Location
Ottawa, Ontario
Language
English
Abstract
Nails Effect on Wood
Cracks - Measurement
Fracture mechanics - Computer Programs
Documents
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The Control of moisture in preserved wood foundations

https://library.fpinnovations.ca/en/permalink/fpipub41454
Author
van Rijn, G.J.
Date
April 1984
Material Type
Research report
Field
Sustainable Construction
in both field and laboratory measurement of moisture content, more appropriate correction factors
Author
van Rijn, G.J.
Date
April 1984
Material Type
Research report
Physical Description
21 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Wood foundations
Wood
Preserved wood
Measurement
Instrumentation
Series Number
CFS/DSS project no 8/83-84
Project no.55-57-362
E-152
Location
Ottawa, Ontario
Language
English
Abstract
Moisture - Measurement - Instruments
Preserved wood foundations
Documents
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Density evaluation of lodgepole pine parent trees

https://library.fpinnovations.ca/en/permalink/fpipub37166
Author
Gonzalez, J.S.
Date
March 1987
Material Type
Research report
Field
Sustainable Construction
Author
Gonzalez, J.S.
Date
March 1987
Material Type
Research report
Physical Description
14 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Pinus contorta
Pinus
Measurement
Series Number
CFS No. 34;04-55-12-156
W-430
Location
Vancouver, British Columbia
Language
English
Abstract
Pinus contorta Dougl. var. latifolia - Density
Density - Measurement
Documents
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Density evaluation of lodgepole pine parent trees. (First of two reports).

https://library.fpinnovations.ca/en/permalink/fpipub37218
Author
Gonzalez, J.S.
Date
March 1988
Material Type
Research report
Field
Sustainable Construction
Author
Gonzalez, J.S.
Date
March 1988
Material Type
Research report
Physical Description
13 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Pinus contorta
Pinus
Measurement
Series Number
CFS No. 35;87-55-12X-156
W-549
Location
Vancouver, British Columbia
Language
English
Abstract
Pinus contorta Dougl var. latifolia
Density - Measurement
Documents
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Density of SPF lumber - results obtained using three different approaches to its determination

https://library.fpinnovations.ca/en/permalink/fpipub37247
Author
Stieda, C.K.A.
Date
March 1991
Material Type
Research report
Field
Sustainable Construction
Author
Stieda, C.K.A.
Date
March 1991
Material Type
Research report
Physical Description
58 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Pinus
Picea
Measurement
Fir
Series Number
Forestry Canada No. 22A;5410C026
W-864
Location
Vancouver, British Columbia
Language
English
Abstract
The objective of this study was to determine the representativeness of density determined from a small size near the failure location of a lumber test specimen for the density of the total lumber specimen. Other objectives were: to check on the moisture distribution within parcels after the lumber had been stored in the laboratory for several weeks; and, to check on differences in density between species. Results, discussion, conclusions and recommendations are presented.
Density - Measurement
Abies - Density
Picea - Density
Pinus - Density
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63 records – page 1 of 7.