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15 records – page 1 of 2.

Effect of accelerated aging and outdoor weathering on various properties of waferboard: a status report

https://library.fpinnovations.ca/en/permalink/fpipub38215
Author
Alexopoulos, J.
Date
March 1988
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Alexopoulos, J.
Date
March 1988
Material Type
Research report
Physical Description
19 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Weathering
Waferboards
Swelling
Shrinkage
Series Number
CFS project no.1
Project no.3810D010
E-745
Location
Ottawa, Ontario
Language
English
Abstract
Waferboard - Durability
Weathering - Tests
Swelling and shrinkage
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Effect of accelerated aging and outdoor weathering on various properties of waferboard : progress report

https://library.fpinnovations.ca/en/permalink/fpipub38389
Author
Alexopoulos, J.
Date
March 1990
Material Type
Research report
Field
Wood Manufacturing & Digitalization
AGING AND OUTDOOR WEATHERING ON VARIOUS PROPERTIES OF WAFERBOARD PROGRESS REPORT V J This project
Author
Alexopoulos, J.
Date
March 1990
Material Type
Research report
Physical Description
3 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Weathering
Waferboards
Outdoors
Aging
Series Number
CFS project no.1
3810D010
E-1176
Location
Ottawa, Ontario
Language
English
Abstract
Waferboard - Aging
Waferboard - Outdoor Weathering
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Author
Cui, F.
Date
March 1994
Material Type
Research report
Field
Sustainable Construction
weathering without masking the natural colour and texture of wood. INDUSTRY LIASON Jack Newman, Weldwood
Author
Cui, F.
Date
March 1994
Material Type
Research report
Physical Description
2 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Wood
Weathering
Preservation
Series Number
1712K031
W-1146
Location
Vancouver, British Columbia
Language
English
Abstract
The objective is to develop an economically, technically and environmentally viable process which will provide long-term protection against wood weathering without masking the natural colour and texture of wood. Progress is described.
Finishes - Exterior - Durability
Weathering
Preservation
Chemistry - Wood
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Enhanced wood products

https://library.fpinnovations.ca/en/permalink/fpipub41119
Author
Cui, F.
Date
March 1995
Material Type
Research report
Field
Sustainable Construction
Author
Cui, F.
Contributor
Canada. Canadian Forest Service.
Date
March 1995
Material Type
Research report
Physical Description
30 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Weathering
Wood decay
Spectroscopy
Infrared spectroscopy
Series Number
Canadian Forest Service No. 37
Contract no. 1712K031
W-1189
Location
Vancouver, British Columbia
Language
English
Abstract
Wood is very susceptible to weathering when used outdoors because of its inherent nature of UV degradability and dimensional instability. Without effective protection, wood rapidly loses its attractive natural appearance and becomes unserviceable within a few years. Protection has traditionally taken the form of system design to avoid trapping water, and surface finishing to shed water and prevent UV degradation. Unfortunately, surface finishes such as paint and stain last only a few years and the need to repeatedly refinish wood has led to the perception of wood products as high maintenance building materials. The objective of this project is to develop fundamental information leading to processes which can be used by our industry to produce high- performance wood products with extended service lives and low maintenance requirements. The project has been focusing on UV resistance to the present stage. Wood samples were treated with chemicals that have UV stabilizing properties and their weathering performance evaluated by both accelerated and natural weathering tests. UV-visible spectroscopy was used to monitor the color change, and FTIR (Fourier Transform Infrared spectroscopy) was used to monitor lignin degradation on the wood surface. Rate of erosion, water absorption, and dimensional change during accelerated weathering was also studied. Preliminary weathering results are discussed in this report and recommendations made for further research.
Spectroscopy, Infrared
Spectroscopy, Ultraviolet
Finishes - Decay
Weathering
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Evaluation of new methods to enhance colour uniformity of pine

https://library.fpinnovations.ca/en/permalink/fpipub39403
Author
Stirling, Rod
Morris, Paul I.
Date
March 2012
Material Type
Research report
Field
Sustainable Construction
Author
Stirling, Rod
Morris, Paul I.
Contributor
Natural Resources Canada. Canadian Forest Service
Date
March 2012
Material Type
Research report
Physical Description
10 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Wood
Weathering
Series Number
Canadian Forest Service No. 23
W-2882
Location
Vancouver, British Columbia
Language
English
Abstract
In the built environment wood surfaces often experience different exposure conditions, particularly exposure to sunlight. This can result in part of a surface receiving full sun, while other parts may be completely shaded. Methods that minimize the resulting colour differences between exposed and shaded areas would enhance the aesthetic appeal of wood. In the present work a “pre-weathering” approach to wood colour stabilization was investigated. After two months of natural exposure, colour change was similar regardless of pre-exposure. The heartwood samples in a shade exposure were much more discoloured than the equivalent sapwood samples. This suggests that heartwood extractive oxidation is a major cause of initial heartwood discolouration. The samples exposed to the sun did discolour more, indicating a UV/Visible light effect as well.
Colour of wood
Weathering
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Evaluation of the Q.U.V. accelerated weathering tester for simulated weathering of western red cedar roofing products

https://library.fpinnovations.ca/en/permalink/fpipub40989
Author
Cserjesi, Antal Ja'nos
Johnson, E.L.
Byrne, Anthony (Tony)
Date
July 1984
Material Type
Research report
Field
Sustainable Construction
Author
Cserjesi, Antal Ja'nos
Johnson, E.L.
Byrne, Anthony (Tony)
Date
July 1984
Material Type
Research report
Physical Description
13 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Weathering
Thuja plicata
Shingles durability
Shingles
Preservatives tests
Preservatives
Series Number
02-65-43-015
W-261
Location
Vancouver, British Columbia
Language
English
Abstract
Weathering, Accelerated
Preservatives - Tests, Accelerated
Thuja plicata - Shingles
Shingles - Durability
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Exterior weathering of panel products

https://library.fpinnovations.ca/en/permalink/fpipub5664
Author
Alexopoulos, J.
Davis, A.R.
Date
March 1985
Edition
38679
Material Type
Research report
Field
Wood Manufacturing & Digitalization
EXTERIOR WEATHERING OF PANEL PRODUCTS J. Alexopoulos and A.R. Davis FORINTEK CANADA CORP
Author
Alexopoulos, J.
Davis, A.R.
Date
March 1985
Edition
38679
Material Type
Research report
Physical Description
13 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Weathering
Panels
Series Number
036010003
E-1932
Location
Ottawa, Ontario
Language
English
Abstract
This second status report describes the effects of 1 year exterior weathering at the Ottawa site and three accelerated aging tests on thickness, bending properties, internal bond strength, surface hardness, and nail withdrawal resistance of small specimens of two commercial waferboards. Following 1 year exterior weathering, all but two properties of random short wafer waferboards were adversely affected to a greater extent than aligned long wafer specimens. Thickness change and internal bond strength retention were more or less equal for the two waferboards. Relative to 1 year exterior weathering, accelerated aging was more severe in all cases except modulus of rupture following the AFNOR V 313 test and modulus of elasticity following both the AFNOR V 313 test and the ASTM 6-cycle test. Of the three accelerated aging tests studied, the AFNOR V 313 test was the least severe followed by the ASTM 6-cycle test and the CSA 2-hour boil, the most severe test. A second outdoor test site was set up in Saskatoon, Saskatchewan and similar waferboards were mounted for exposure.
Panel Products
Exterior
Weathering
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Exterior weathering of panel products : status report no 3

https://library.fpinnovations.ca/en/permalink/fpipub5631
Author
Alexopoulos, J.
Davis, A.R.
Date
March 1986
Edition
38088
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Alexopoulos, J.
Davis, A.R.
Date
March 1986
Edition
38088
Material Type
Research report
Physical Description
13 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Weathering
Waferboard testing
Waferboards
Testing
Series Number
CFS/DSS project no 1a/85-86
Project no.38-10-010
E-279
Location
Ottawa, Ontario
Language
English
Abstract
Waferboard - Testing
Weathering - Tests
Documents
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Initiation of a field test to evaluate the performance of weathering stains

https://library.fpinnovations.ca/en/permalink/fpipub44136
Author
Stirling, Rod
Ingram, Janet K.
Date
January 2015
Material Type
Research report
Field
Sustainable Construction
Author
Stirling, Rod
Ingram, Janet K.
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
January 2015
Material Type
Research report
Physical Description
10 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Stain
Weathering
Testing
Series Number
W-3140
Location
Vancouver, British Columbia
Language
English
Abstract
Weathering stains turn wood a grey colour to mimic weathered wood, and thereby minimize colour change after installation. A field test was initiated to evaluate the performance of several commercial weathering stains for their ability to reduce colour change after field exposure, relative to uncoated wood. Samples should be inspected after one year of exposure.
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Sound absorption, resistance to freeze-thaw in a saline solution and accelerated weathering of agrestacrete

https://library.fpinnovations.ca/en/permalink/fpipub38151
Author
Reny, L.E.
van Rijn, G.J.
Date
December 1988
Material Type
Research report
Field
Sustainable Construction
Author
Reny, L.E.
van Rijn, G.J.
Date
December 1988
Material Type
Research report
Physical Description
14 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Weathering
Sound transmission
Resistance
Series Number
4386K524
E-518
Location
Ottawa, Ontario
Language
English
Abstract
Agrestacrete - Sound - absorption
Agrestacrete - Resistance - Freeze - Saline
Agrestacrete - Weathering - Accelerated
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15 records – page 1 of 2.