Skip header and navigation

75 records – page 1 of 8.

Advanced technologies to improve penetration of wood treatments : biological incising with Dichomitus squalens in spruce and pine lumber

https://library.fpinnovations.ca/en/permalink/fpipub42460
Author
Dale, Angela
Morris, Paul I.
Date
March 2011
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Dale, Angela
Morris, Paul I.
Contributor
Natural Resources Canada. Canadian Forest Service.
Date
March 2011
Material Type
Research report
Physical Description
18 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Preservation
Pinus
Picea
Series Number
Value to Wood No. FPI#117W
W-2823
Location
Vancouver, British Columbia
Language
English
Abstract
Canadian wood species such as spruce and pine are difficult to treat with wood preservatives or other wood enhancing formulations due to a thin sapwood band and refractory heartwood. One method of improving penetration is by biological incising. Biological incising with Dichomitus squalens was originally developed in Austria in the 1990s to increase the permeability of European spruce prior to treatment with wood preservatives. Recently the patents on this technology lapsed. It was considered unlikely that industrial use of a European white-rot fungus would be acceptable in Canada. FPInnovations therefore conducted a screening test of a range of Canadian isolates of various white-rot fungi to identify an isolate that would be suitable for biological incising of Canadian spruce and pine. Under pure culture conditions, one isolate of Dichomitus squalens isolated from white spruce was found to greatly increase the permeability of the wood, particularly in spruce. The objective of the current study was to determine if these results could be achieved on commercial sized wood under non-sterile conditions more similar to an industrial setting. Lumber samples, 3.8 cm by 8.9 cm by 400 cm in length were incubated in plastic totes with fungal inoculum. Two isolates of fungi were tested as well as two different decontamination methods (steam and Benomyl solution) and two time frames (4 and 6 weeks). Through treatment of spruce samples (19 mm penetration) with 1.7% ACQ was achieved after six weeks incubation with D. squalens 78A (a spruce isolate). In matched samples treated with MCA, a minimum of 10 mm penetration was achieved in 90% of the samples. Strength loss in some individual samples was higher than adjustment factors for conventional incising (over 25%) suggesting that incubation time may need to be shortened. Preservative penetration was more variable in pine but permeability was increased; 60% of the samples reached a minimum penetration of 5 mm. Incubation time and conditions may need to be adjusted to achieve more consistent results. The results of this study show that biological incising can greatly improve the permeability of spruce and pine and can be achieved on 38 by 89 dimension lumber under conditions that could be utilized in an industrial setting. Future work should focus on determining incubation conditions that allow penetration requirements in Canadian standards to be met with acceptable strength loss.
Picea - Preservation
Pinus - Preservation
Preservation - Incising
Documents
Less detail

Alberta facts on wood series fact sheets for Balsam fir, Balsam poplar, Black spruce, Jack pine, Lodgepole pine, Tamarack, Trembling aspen, White birch, and White spruce

https://library.fpinnovations.ca/en/permalink/fpipub5602
Author
Lindenbach-Gibson, R.
Fell, David
Marinescu, Marian
Rice, J.
Date
March 2006
Edition
37756
Material Type
Pamphlet
Field
Sustainable Construction
coverage in Alberta Botanical Name: Picea mariana Common Names: Bog Spruce, Swamp Spruce, Short Leaf
Author
Lindenbach-Gibson, R.
Fell, David
Marinescu, Marian
Rice, J.
Contributor
Alberta Forestry Research Institute
Date
March 2006
Edition
37756
Material Type
Pamphlet
Physical Description
36 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Market Analysis
Subject
Alberta
Fir
Larix
Picea
Pinus
Populus
Value added
Series Number
Facts on wood series
W-2189B
Location
Vancouver, British Columbia
Language
English
Abstract
Each fact sheet describes visual, physical and working properties for the species for the wood-consuming value added sector.
Alberta woods
Value added - Alberta
Abies balsamea
Populus balsamifera
Picea mariana
Pinus banksiana
Pinus contorta Dougl. var. latifolia
Larix laricina
Populus tremuloides
Betula papyrifera
Picea glauca
Documents
Less detail

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
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
Documents
Less detail

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
Documents
Less detail

An accelerated decay test of needle- and conventionally-incised CCA-treated white spruce and lodgepole pine

https://library.fpinnovations.ca/en/permalink/fpipub4398
Author
Ingram, Janet K.
Morris, Paul I.
Date
June 1998
Edition
41176
Material Type
Research report
Field
Sustainable Construction
Introduction White spruce (Picea glauca [Moench] Voss) and lodgepole pine {Pinus contorta Dougl
Author
Ingram, Janet K.
Morris, Paul I.
Date
June 1998
Edition
41176
Material Type
Research report
Physical Description
5 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Preservatives chromated copper arsenate CCA
Preservatives
Preservation
Pinus contorta
Pinus
Picea
Series Number
W-1510
Location
Vancouver, British Columbia
Language
English
Abstract
An accelerated decay test was set up to compare the performance of CCA-treated needle-incised white spruce and lodgepole pine heartwood with end-matched conventionally-incised material. Short lengths of 2 x 4 and comparable untreated material were installed in a warmed soil bed in the open air. After 12 years of accelerated exposure (equivalent to 15 years' natural exposure), all the treated material - spruce and lodgepole pine, needle and conventionally incised - was almost completely sound with minor patches of surface decay. In contrast, both the untreated spruce and the untreated lodgepole pine heartwood had failed due to decay. The performance of needle-incised and conventionally-incised lumber has been very similar in both species.
Preservation - Incising - Tests
Picea - Preservation
Pinus contorta Dougl. var. latifolia - Preservation
Preservatives - Chromated copper arsenate (CCA)
Documents
Less detail

Apparatus for duration of load compression tests of dimension lumber

https://library.fpinnovations.ca/en/permalink/fpipub5460
Author
Samson, M.
Olson, S.L.
Date
March 1985
Edition
37007
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Samson, M.
Olson, S.L.
Date
March 1985
Edition
37007
Material Type
Research report
Physical Description
10 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Strength load bearing
Compression
Mechanical properties
Picea
Loads
Series Number
CFS Contract 02-50-65-593
W-211
Location
Vancouver, British Columbia
Language
English
Abstract
Picea glauca - Strength
Strength - Compression - Parallel to grain
Strength - Load bearing - Influence of duration
Documents
Less detail

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
Documents
Less detail

Biomass productivity and wood quality of white spruce

https://library.fpinnovations.ca/en/permalink/fpipub5456
Author
Jozsa, Les A.
Bramhall, Paul Arthur
Johnson, S.G.
Date
March 1985
Edition
36998
Material Type
Research report
Field
Sustainable Construction
spruce [Picea glauca (Moench) Voss] stands i n the Boreal Forest Region i n Alberta and Manitoba; south
Author
Jozsa, Les A.
Bramhall, Paul Arthur
Johnson, S.G.
Date
March 1985
Edition
36998
Material Type
Research report
Physical Description
43 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Picea
Growth
Series Number
CFS Contract 02-80-12-001
W-188
Location
Vancouver, British Columbia
Language
English
Abstract
Picea glauca - Density
Growth - Influence of climate
Documents
Less detail

Biomass productivity of white spruce in Alberta and Manitoba

https://library.fpinnovations.ca/en/permalink/fpipub5480
Author
Jozsa, Les A.
Bramhall, Paul Arthur
Johnson, S.G.
Date
August 1984
Edition
37101
Material Type
Research report
Field
Sustainable Construction
approximately 110-year-old white spruce [Picea glauca (Moench) Voss] stands of the Boreal Forest Region i n
Author
Jozsa, Les A.
Bramhall, Paul Arthur
Johnson, S.G.
Date
August 1984
Edition
37101
Material Type
Research report
Physical Description
27 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Picea
Growth
Biomass
Alberta
Series Number
CFS No. 27
Contract No. 02-80-56-011
W-319
Location
Vancouver, British Columbia
Language
English
Abstract
Picea glauca - Growth
Biomass - Alberta
Biomass - Manitoba
Dendrochronology
Documents
Less detail

Black spruce : Alberta facts on wood series

https://library.fpinnovations.ca/en/permalink/fpipub5595
Author
Lindenbach-Gibson, R.
Fell, David
Marinescu, Marian
Rice, J.
Date
March 2006
Edition
37749
Material Type
Pamphlet
Field
Sustainable Construction
Black spruce coverage in Alberta Botanical Name: Picea mariana Common Names: Bog Spruce, Swamp Spruce
Author
Lindenbach-Gibson, R.
Fell, David
Marinescu, Marian
Rice, J.
Contributor
Alberta Forestry Research Institute
Date
March 2006
Edition
37749
Material Type
Pamphlet
Physical Description
4 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Market Analysis
Subject
Alberta
Picea
Value added
Series Number
Facts on wood series
W-2189E
Location
Vancouver, British Columbia
Language
English
Abstract
The distribution range of black spruce encompasses the entire width of North America, stretching from Newfoundland to Alaska. In Alberta, it is commonly found in poorly drained muskeg areas of northern and central regions of the province. Its distribution is sparse and/or absent on very dry sites where its common associate is jack pine. Within the upper foothills of the province, black spruce can be found with lodgepole pine, white spruce and balsam poplar. While pure stands of black spruce are common at the northern and northwestern limits of its growing range, it is also found in mixed stands of white birch, trembling aspen, white spruce and tamarack. The tree often has a characteristic cluster of branches at the top, framing a club or crowsnest. Considered one of the smallest of the eastern spruces, black spruce is a slow growing species reaching 9 to 15 metres in height and 15 to 30 cm in diameter. In areas with well-drained mineral soils, it can attain heights of 25 to 30 metres, however, swamp grown trees 200 years old may be only 5 to 15 cm in diameter. At the national inventory level, black spruce is grouped with red spruce and accounts for approximately 12% of Canada’s total softwood inventory, and 9% of the total national forest inventory. In Alberta, black spruce accounts for 130 million cubic metres or 15% of the province’s spruce inventory. The fact sheet describes visual, physical and working properties for this species for the wood-consuming value added sector.
Alberta woods
Value added - Alberta
Picea mariana
Documents
Less detail

75 records – page 1 of 8.