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38 records – page 1 of 4.

Advanced wood-based solutions for mid-rise and high-rise construction: acoustic performance of innovative composite wood stud partition walls

https://library.fpinnovations.ca/en/permalink/fpipub49838
Author
Hu, Lin J.
Cuerrier-Auclair, Samuel
Deng, James
Wang, Xiang-Ming
Date
April 2018
Material Type
Research report
Field
Sustainable Construction
, whether loadbearing or non-loadbearing, are commonly framed with studs of solid sawn lumber of 2x4, 2x6
Author
Hu, Lin J.
Cuerrier-Auclair, Samuel
Deng, James
Wang, Xiang-Ming
Contributor
Natural Resources Canada. Canadian Forest Service
Date
April 2018
Material Type
Research report
Physical Description
25 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Advanced Wood Materials
Subject
Wood
Vibration
Design
Walls
Studs
Language
English
Abstract
Airborne sound insulation performance of wall assemblies is a critical aspect which is directly associated with the comfort level of the occupants, which in turn affects the market acceptance.
Documents
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An investigation into chipped surface quality problems at canter lines

https://library.fpinnovations.ca/en/permalink/fpipub5565
Author
Wang, A.
Szathmary, G.
Date
September 2001
Edition
37595
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Wang, A.
Szathmary, G.
Date
September 2001
Edition
37595
Material Type
Research report
Physical Description
28 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Studs
Saw mills
Equipment
Sawing
Quality control
Qualitative analysis
Series Number
2166
W-1807
Location
Vancouver, British Columbia
Language
English
Abstract
The purpose of this study is to investigate and record the principal problems associated with chipped surface quality at canter lines and evaluate degrade and value losses due to these problems. Mill measurements were conducted in five member sawmills in British Columbia to evaluate the value losses and lumber degrades due to chipped surface defects. The test lumber was sampled from the planing mills to identify the chipping losses and main problems. The five types of chipped surface defects influencing lumber grade are: knot tear-out; failure to remove chipped spline channel; torn grain without knots; scalloping; and chipped thin end. Average value losses for all mills were $11.4/MBF and $12.6/MBF in freezing and non-freezing conditions respectively. Removing the non-freezing data from one mill changed this to $11.4/MBF and $9.0/MBF respectively. Knot tear out caused 60% of lumber to be degraded. On average, over 55% of knots had tear-out. 42.3% of trim length was caused by failure to remove chipped spline channel.
Sawing - Quality control
Defects - Knots
Sawmilling studies
Sawmills - Equipment
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Building codes & fire standards benefit study : "Delphi" questionaire

https://library.fpinnovations.ca/en/permalink/fpipub4869
Author
Thomson, C.R.
Date
May 1991
Edition
41689
Material Type
Research report
Field
Sustainable Construction
to room (doors open/closed). (was effect o f gypsum wall- board backing over studs also assessed ?) 4
Author
Thomson, C.R.
Contributor
Ross Thomson & Associates
Date
May 1991
Edition
41689
Material Type
Research report
Physical Description
36 p.
Sector
Wood Products
Field
Sustainable Construction
Research Area
Building Systems
Subject
Studs
Standards
Canada
Building code
Location
Ottawa, Ontario
Language
English
Abstract
Building codes - Canada
Fire Standards - Benefit Study
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Chip production at four size categories of Alberta sawmills : an assessment of production volumes and cost

https://library.fpinnovations.ca/en/permalink/fpipub745
Author
Mayer, D.A.
Date
August 1984
Edition
37058
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Mayer, D.A.
Date
August 1984
Edition
37058
Material Type
Research report
Physical Description
8 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Waste utilization
Utilization
Studs
Saw mills
Recovery
Costs
Alberta
Series Number
W-268
Location
Vancouver, British Columbia
Language
English
Abstract
Chips - Recovery - Alberta
Chipping - Cost - Alberta
Waste - Utilization for pulp - Alberta
Sawmilling studies - Alberta
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Commercial thinning: a comparison of mechanized and manual systems in New Brunswick

https://library.fpinnovations.ca/en/permalink/fpipub3820
Author
Meek, Philippe
Date
August 2001
Edition
40539
Material Type
Research report
Field
Fibre Supply
Author
Meek, Philippe
Date
August 2001
Edition
40539
Material Type
Research report
Physical Description
4 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Thinning
Systems
Studs
Productivity
Harvesting
Costs
Advantage
Series Number
Advantage ; Vol. 2, No. 17
Language
English
Abstract
FERIC studied two commercial thinning systems under comparable conditions. The first involved manual felling, processing, and piling, whereas the second was completely mechanized and used a small single-grip harvester. Two shortwood forwarders with different payload capacities were also studied in this operation. The costs at roadside depended strongly on the hourly wages for the workers. A sensitivity analysis demonstrated that the estimated production costs for the two systems were comparable (at $22.83/m3) when the wages reached $19.22 per scheduled hour.
Commercial thinning
Comparative study
Mechanized method
Manual method
Cut-to-length systems
Harvesting
Extraction
Productivity
Costs
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Comparison of the lumber manufacturing efficiency of seven sawmills operating in the B.C. interior

https://library.fpinnovations.ca/en/permalink/fpipub5475
Author
Middleton, G.R.
Munro, B.D.
Date
February 1985
Edition
37064
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Middleton, G.R.
Munro, B.D.
Date
February 1985
Edition
37064
Material Type
Research report
Physical Description
25 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Studs
Saw mills
Efficiency
Recovery
Series Number
W-274
Location
Vancouver, British Columbia
Language
English
Abstract
Sawmilling studies
Recovery
Sawmilling - Efficiency
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Compte rendu du colloque sur le sciage

https://library.fpinnovations.ca/en/permalink/fpipub38210
Contributor
Forintek Canada Corp.
Date
September 1979
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Contributor
Forintek Canada Corp.
Date
September 1979
Material Type
Research report
Physical Description
120 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Studs
Saw mills
Series Number
Special publication SP-502F
Location
Ottawa, Ontario
Language
French
Abstract
Sawmilling - Study and Teaching
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Cost analysis of cut-to-length harvesting in hardwood stands

https://library.fpinnovations.ca/en/permalink/fpipub40602
Author
Hillman, Deric
Date
2002
Material Type
Research report
Field
Fibre Supply
Author
Hillman, Deric
Date
2002
Material Type
Research report
Physical Description
6 p.
Sector
Forest Operations
Field
Fibre Supply
Research Area
Forestry
Subject
Tolerance
Systems
Studs
Operations
Harvesting
Hardwoods
Costs
Advantage
Series Number
Advantage ; Vol. 3, No. 41
Language
English
Abstract
FERIC studied three log-producing harvesting systems to determine their productivities and costs in stands of intolerant hardwoods. The systems differed based on where the processing took place: during felling, at the stump, or at roadside. The system using a roadside processor proved most economical, but the two other systems we observed are also suitable for the highly variable harvesting conditions encountered in hardwood stands. An operation with at-the-stump processing was also studied in stands of tolerant hardwoods, and the results suggest that this operation was less productive and more expensive than the operations in intolerant hardwoods. The low productivity was, however, compensated for by the higher value of the sawlogs and veneer logs that were produced.
Harvesting cost
Cut-to-length systems
Tolerant hardwoods
Intolerant hardwoods
Operational study
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Cost reductions and added value through a sawmill operations profit improvement program

https://library.fpinnovations.ca/en/permalink/fpipub36873
Author
Middleton, G.R.
Date
December 1990
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Middleton, G.R.
Date
December 1990
Material Type
Research report
Physical Description
21 p.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Value added
Studs
Saw mills
Efficiency
Series Number
Forestry Canada No. 30
contract no. 1215K007
W-799
Location
Vancouver, British Columbia
Language
English
Abstract
Forintek has developed a sawmill profit improvement program for mills in western Canada. A team of Forintek specialists work in cooperation with sawmill management to identify short-term low-cost improvements that can be made to current operations, and to identify the need for additional studies required to justify changes to equipment and processes that would achieve future profit improvement. Key areas included in the evaluation are sawmill processes, saws and sawing, kiln drying and lumber protection. The mill evaluation begins with documentation of known operating characteristics such as timber resource, sawmill design and maintenance, kiln design and control, and lumber drying schedules. The Forintek team visits the sawmill to evaluate current operating practices with the mill staff responsible for each aspect of the operation. Findings are discussed and a report is provided. This paper describes the sawmill evaluation process and provides examples of observations and recommendations made following three case studies. In all three case studies, significant improvements in mill operations could be made at very little additional cost
Sawmilling - Efficiency
Value added
Sawmilling studies
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Debarker performance benchmarking

https://library.fpinnovations.ca/en/permalink/fpipub37596
Author
Orbay, L.
Date
November 2001
Material Type
Research report
Field
Wood Manufacturing & Digitalization
Author
Orbay, L.
Date
November 2001
Material Type
Research report
Physical Description
1 v.
Sector
Wood Products
Field
Wood Manufacturing & Digitalization
Research Area
Advanced Wood Manufacturing
Subject
Wood
Studs
Saw mills
Process control
Bark
Series Number
3041
W-1814
Location
Vancouver, British Columbia
Language
English
Abstract
A mill test and a study were carried out to provide a benchmark as to what is the best debarker performance achievable on frozen wood with properly adjusted debarker settings and well-maintained equipment. The test results have shown that:
The fibre to bark ratio decreased to 12.7% from the 20.9% observed in a previous Forintek study of sawmills with average debarker performance.
The lumber value recovered from logs was 10.7% higher than that achieved with average debarking, and the corresponding lumber volume increase was 10.4%.
The debarker removed 97.3% of the bark volume.
The fibre loss was 1.2% . For a sawmill processing 100,000 m3 of logs during a winter period of three months, losses attributed to poorly operated debarkers can amount to as much as $1.4 million.
Barkers - Process control
Barking - Process control
Frozen wood
Sawmilling studies
Documents
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38 records – page 1 of 4.