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Hybrid profiled decking innovation engine 2019 - 2020

https://library.fpinnovations.ca/fr/permalink/fpipub52926
Auteur
Wong, Daniel
Stirling, Rod
Date
March 2020
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Wong, Daniel
Stirling, Rod
Date
March 2020
Genre du document
Research report
Description physique
19 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Decking
Preservatives
Testing
Localisation
Vancouver, British Columbia
Langue
English
Résumé
Decking markets in Canada lack options of hybrid designs and are generally limited to smooth 5/4” or 2x6” of either pressure treated wood, cedar, tropical hardwoods or wood plastic composites. Profiled decking has been unsuccessful in entering the Canadian market on a large scale even though globally it is more prevalent. This report looks to leverage FPInnovations’ expertise to identify opportunities to improve the stability, durability, performance and competitiveness of wood decking by combining profiling and treatment with additional non-wood materials. This information will be used to develop prototypes of novel wood-based decking products that would suit the needs of Canadian consumers as well as maintaining or expanding the solid wood decking market for Canadian producers. Six hybrid decking models were conceptualized to address market concerns about wood decking.
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Low-density OSB. Pilot plant study and techno-economic analysis

https://library.fpinnovations.ca/fr/permalink/fpipub7709
Auteur
Groves, C. Kevin
Macfarlane, Alan
Feng, Martin
Date
March 2020
Édition
52986
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Groves, C. Kevin
Macfarlane, Alan
Feng, Martin
Date
March 2020
Édition
52986
Genre du document
Research report
Description physique
30 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Testing
Strandboards
Oriented strandboard (OSB)
Gluing
Glue
Pilot Plant
Markets
Localisation
Vancouver, British Columbia
Langue
English
Résumé
In this project, the main objective was to evaluate the “best bet” experimental mat structure design previously identified by FPInnovations in 2018/19. This mat structure was comprised of three strand size classes incorporated into six equal weight mat layers. Both experimental and control panels were prepared at 39lb/ft³ and 35lb/ft³ densities and tested for dry static bending, single cycle bending (D4), concentrated static load, thickness swell, and internal bond strength.
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Drying of balsam and subalpine fir: for a better understanding

https://library.fpinnovations.ca/fr/permalink/fpipub52906
Auteur
Lavoie, Vincent
Date
November 2019
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Lavoie, Vincent
Date
November 2019
Genre du document
Research report
Description physique
4 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Air drying
Balsam
Drying
Fir
Logs
Lumber
Moisture content
Performance
Sawmills
Subalpine fir
Wet pockets
Wood yards
Série
FPI WP 2019
Langue
English
Résumé
The findings of recent studies from both eastern and western Canada have shown that the drying behaviour of subalpine fir (A. lasiocarpa) and balsam fir (A. balsamea) is similar, which allows common solutions to be applied based on research conducted on one species of fir or the other. This article summarizes previous research findings and good practices that can be adopted in the short term to improve the drying of fir.
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Séchage du sapin baumier et subalpin: pour une meilleur compréhension

https://library.fpinnovations.ca/fr/permalink/fpipub52907
Auteur
Lavoie, Vincent
Date
November 2019
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Lavoie, Vincent
Date
November 2019
Genre du document
Research report
Description physique
4 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Air drying
Balsam
Drying
Fir
Logs
Lumber
Moisture content
Performance
Sawmills
Subalpine fir
Wet pockets
Wood yards
Série
FPI WP 2019
Langue
French
Résumé
Des travaux récents tant dans l’est que dans l’ouest du Canada ont montré que le comportement au séchage du sapin subalpin (A. lasiocarpa) et du sapin baumier (A. balsamea) est similaire, ce qui permet une application de solutions communes à partir de travaux effectués sur l’une ou l’autre variété de sapin. Le présent document se veut une revue sommaire de résultats de travaux antérieurs et de bonnes pratiques pouvant être adoptées à court terme pour améliorer le séchage de cette essence.
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Guide to developing a science-based biomass quality control program

https://library.fpinnovations.ca/fr/permalink/fpipub52656
Auteur
Marinescu, Marian
Date
October 2018
Genre du document
guide
Research report
Domaine
Wood Manufacturing & Digitalization
PDF
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Auteur
Marinescu, Marian
Collaborateur
Nova Scotia Innovation Hub
Date
October 2018
Genre du document
guide
Research report
Description physique
26 p.
Secteur
Forest Operations
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Biomass
Quality control
Sampling
FOP Technical Report
FPI TR
Série
Technical Report ; TR 2018 n.42
Langue
English
Résumé
To support the implementation of biomass procurement practices, a formal, rigorous, consistent, science-based biomass quality control (QC) program is needed. This program should be designed to determine customer needs, the sources of product variation, and ways of eliminating or minimizing product variation as soon as it occurs. The program should also include a well-designed QC plan and sampling protocol, statistical process control methodologies and tools, formal QC teams, and regular training. This report describes various statistical QC tools and demonstrates those using examples of biomass moisture content data. These tools can be developed in-house or be purchased, but their integration with existing databases (e.g., LIMS) is recommended. FPInnovations experts can assist in developing customized QC programs for companies and for specific biomass products, and can train QC teams to develop and use the tools presented here.
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Continuous drying of softwood dimension lumber (progress report)

https://library.fpinnovations.ca/fr/permalink/fpipub52785
Auteur
Lazarescu, Ciprian
Oliveira, Luiz C.
Date
October 2018
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Lazarescu, Ciprian
Oliveira, Luiz C.
Date
October 2018
Genre du document
Research report
Description physique
22 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Drying
Lumber
Softwoods
Testing
Simulation
Localisation
Vancouver, British Columbia
Langue
English
Résumé
Continuous drying is still in its relatively early stages and mills are currently dealing with process adjustments to obtain desired throughput and quality of the final product. Field measurement carried out in 2015-16 illustrated a number of opportunities for process optimization involving each of the three main stages of current continuous kilns. Simulations of industrial continuous drying at laboratory level performed in 2016-17 were successful and allowed the evaluation of each of the drying stages to be fully characterized (lumber temperatures, drying schedule conditions of dry and wet bulb temperatures). Thus, different drying schedules provided an excellent opportunity to examine the impact of schedule conditions on drying defects, drying rates and kiln residence times. The main objectives of the project for 2017-18 were to simulate continuous drying in laboratory conditions for different products, products mix, species and green sort groups. In addition, a detailed evaluation of potential technologies was carried out to explore the concept of dynamically adjusting speed (push rates), based on drying rates and moisture content. Piecewise regression was used to identify the optimum push rate and suggest design modifications of continuous kilns. This method proved to be efficient in identifying potential reductions in drying time for different sorts of sprue/pine (SP) lumber without compromising the quality of the final product. Simulations also allowed identifying the push rate of 2 feet/h to satisfactorily dry green hem-fir 2-inch lumber. Initial tests showed that mid-sort sub-alpine (moisture content below approximately 70%) could not be mixed with wet sort SP in a continuous kiln operating at push rate of 4.2 feet/hr because only 73% of the sub-alpine sort dried below 21%. Decreases in push rate will reduce the percentage of sub-alpine fir wets but will also increase the amount of over-dried lumber. Changes in kiln configuration may reduce the drying time but increase the percentage of over-dried lumber. The results indicated that additional laboratory tests are required to develop drying schedules and temperature profiles in the main drying zone of continuous kilns, drying times and final moisture content distribution.
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Preliminary assessment of moisture-related properties for structural composite lumber

https://library.fpinnovations.ca/fr/permalink/fpipub49831
Auteur
Wang, Jieying
Date
April 2018
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Wang, Jieying
Collaborateur
Natural Resources Canada. Canadian Forest Service
Date
April 2018
Genre du document
Research report
Description physique
37 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Wetting
Drying
Performance
Water repellents
Série
Transformative Technology ; TT 2018
Langue
English
Résumé
Fifteen structural composite lumber (SCL) products including laminated-veneer lumber (LVL), laminated strand lumber (LSL), oriented strand lumber (OSL), and parallel strand lumber (PSL) provided by Boise Cascade, LP, West Fraser, and Weyerhaeuser were tested for moisture-related properties in this study, also covering four reference materials: 16-mm Oriented Strand Board (OSB), 19-mm Canadian Softwood Plywood (plywood), 38-mm Douglas-fir and lodgepole pine solid wood. Water absorption, vapour permeance, vapour sorption, and dimensional stability were measured with limited replication by following relevant standards for a purpose of assisting in improving building design and construction, such as hygrothermal modelling of building envelope assemblies, design for vertical differential movement, and on-site moisture management.
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Evaluation of prototype wood-based interior partition walls

https://library.fpinnovations.ca/fr/permalink/fpipub7508
Auteur
Knudson, Robert M.
Schneider, Johannes
Thomas, Tony
Date
February 2018
Édition
49823
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Knudson, Robert M.
Schneider, Johannes
Thomas, Tony
Collaborateur
Natural Resources Canada. Canadian Forest Service
Date
February 2018
Édition
49823
Genre du document
Research report
Description physique
20 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Wood
Walls
Residential construction
Prototypes
Design
Série
Transformative Technology ; TT 2018
Langue
English
Résumé
Interior partition walls for non-residential and high-rise residential construction are an US$8 billion market opportunity in Canada and the United States (Crespell and Poon, 2014). They represent 1.6 billion ft² (150 million m²) of wall area where wood currently has less than 10% market share. To approach this market a new system would be needed to compete against the incumbent system (wood/steel stud plus gypsum). The system would need to have an installed cost before finishing of approximately US$5 per ft² or lower. The system would also need to meet several code requirements for strength, sound transmission and fire resistance (flame spread and burn through). Crespell and Poon further concluded that to be truly transformative, the system would also need to address major trends impacting the building industry including reducing labor, reducing skilled labor, reducing onsite waste, reducing call-backs, and easily recyclable with low environmental impact. A likely market entry point for wood-based interior partition systems may be in taller and larger wood buildings. Work described in this report investigated the fabrication, installation, acoustic and combustion properties of prototype interior partition wall designs. Two types of non-structural prototype interior wall panels designated Type A and Type C were installed between two offices in the FPInnovations Vancouver laboratory. Wood sill plates for mounting the prototype panels were fastened to the concrete floor, sides and top of the opening between the two offices to produce a frame for mounting the test panels. Panels were fastened to the frame using dry wall screws. This same method of installation is envisioned in practice. The installation method makes it easy and fast to both install and remove the wall panels. Acoustic tests showed the difference in ASTC rating measured between a double wall composed of Type A and Type C prototype panels compared with a double wood stud wall with gypsum board faces was approximately 6 ASTC points. A 6 point difference would be clearly noticeable. Although the results of this study are largely qualitative, they suggest that the prototype interior partition panels would have an acoustic advantage compared to stud wall designs. In a related study summarized in this report, the combustion properties of three prototype interior panel constructions, including Types A and C evaluated in this report, indicated that any of the three types of partition constructions could be used in combustible construction in accordance with Division B of the National Building Code of Canada. A second related study, also summarized in this report, estimated an installed cost of US$4.07 per ft² including overhead and profit for unfinished panel partitions comparable to panel construction Type C (gypsum/OSB/wood fibre insulation) as evaluated in this study. Thus, there would appear to be potential installed and finished cost advantages for the wood-based panel partitions compared to steel or wood stud walls with gypsum faces. Other potential advantages of the prototype interior partition panels compared with the most common, currently-used systems (wood/steel stud plus gypsum) include ease and speed of installation, ease and speed of removal, design flexibility, prefabrication including pre-finishing, and easy installation of services. Based on the positive results of these exploratory studies, further development of wood-based interior partition systems including design, fabrication, installation and in-service performance would appear justified. Knowledge of the products and testing methods developed in these studies would be expected to speed further development.
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Wood fibre insulation demonstration buildings

https://library.fpinnovations.ca/fr/permalink/fpipub7510
Auteur
Knudson, Robert M.
Thomas, Tony
Date
March 2018
Édition
49829
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Knudson, Robert M.
Thomas, Tony
Collaborateur
Natural Resources Canada. Canadian Forest Service
Date
March 2018
Édition
49829
Genre du document
Research report
Description physique
71 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Wood
Walls
Residential construction
Design
Série
Transformative Technology ; TT 2018
Langue
English
Résumé
FPInnovations in collaboration with 475 High Performance Building Supply and the Canadian Wood Council (CWC) engaged in a project to introduce wood fibre insulation products into Canadian construction through a series of high profile demonstration buildings. Dry process wood fibre insulation products have been in use in a variety of structures throughout Europe for more than 25 years. While the market for wood fibre insulation in Europe is both developed and growing, very little is used in Canada and the United States. The goal of this project is to demonstrate the use of wood fibre insulation products in a range of building types with target market areas in the Pacific Region, the Prairie Provinces, and Eastern Canada. Wood fibre insulation was installed into three different buildings in three different climate regions of Canada, a single family residence near Collingwood, ON, a co-op multi-family housing project in Saskatoon, SK, and a laneway house in Gibsons, BC. All three buildings were designed to meet or approach Passive House standards. Two of the buildings were originally designed to use rigid polymer foam insulation. The third building was designed from inception to use wood fibre insulation. In all cases, 475 High Performance Building Supply provided expertise in design and construction using wood fibre insulation. Adapting the building design and construction practices to use wood fibre insulation as exterior insulation was straightforward and easy. Performance monitoring instrumentation was installed in each building. Performance monitoring of each building is to be carried out for at least one year. Wood fibre insulation seems to fit well into Canadian residential construction practices. In these demonstration buildings wood fibre insulation products were readily adapted into wall and roof systems that had originally called for other insulation products. Based on experience in Europe and FPInnovations testing of wood fibre insulation products, wood fibre insulation products would be expected to perform well under Canadian and other North American conditions. The principal challenges to seeing wood fibre insulation products used more widely in Canada and across North America will be the establishment of manufacturing facilities here, along with educating architects, engineers, builders and owners of the advantages these products bring. The objective of this work was to expose wood fibre insulation products through these demonstration buildings to accelerate their acceptance into Canadian and other North American markets. The project team intends to publicize the results of this demonstration building program to architects, engineers, builders and other potential users through selected websites and other publications.
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Phytosanitary issues, relevant codes, standard work and research in 2016/2017

https://library.fpinnovations.ca/fr/permalink/fpipub49452
Auteur
Uzunovic, Adnan
Date
April 2017
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
PDF
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Auteur
Uzunovic, Adnan
Collaborateur
Canadian Forest Service
Date
April 2017
Genre du document
Research report
Description physique
29 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Standards
Research
Canada
Specification
Regulations
Langue
English
Résumé
This report covers our involvement in phytosanitary-related issues and research in the financial year 2016/17. It addresses actions planned in the 2016/17 project statement of the CFS-funded project entitled: Phytosanitary Measures and deliverables for Codes and Standards work related to phytosanitary issues. It captures our ongoing engagement with CFS, CFIA, and industry, and participation in the key phytosanitary forums including the International Forestry Quarantine Research Group (IFQRG) and the Canadian Forest Phytosanitary Working Group (CFPWG) as these two forums provide guidance to our research in the area.
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Moisture evaluation and veneer peeling of douglas fir and spruce logs from different mills and log yard age inventories

https://library.fpinnovations.ca/fr/permalink/fpipub49466
Auteur
Semple, Katherine
Dai, Chunping
Date
August 2017
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Semple, Katherine
Dai, Chunping
Date
August 2017
Genre du document
Research report
Description physique
69 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Moisture content
Veneer
Fir
Spruce
Storing
Langue
English
Résumé
A total of 48 peeler blocks and 256 mini-billets were sampled from mills to investigate the effects of yard storage time, and artificial yard drying and sprinkling on residual moisture contents (MCs) and veneer quality. MC in fresh and stored log inventories varied greatly across mills according to geographic location of their wood supply zones, bark damage and loss, and storage time and conditions. The main findings were as follows: 1. DF logs supplied by three BC mills from the Cariboo, Thompson Okanagan, or Kootenay regions were highly variable in wood MC. 2. Winter-cut DF logs with high sapwood MC stored had good bark retention and high moisture retention over 6 and 9 winter-spring months. No effects on veneer peeling roughness from longer-term winter storage up to 9 months. 3. Summer-cut logs had little or no residual bark, or the bark slipped off very easily during debarking. Exposed, bark-free summer-cut logs can dry and crack on edges and ends very quickly, within a few weeks. 4. A marked decline in veneer quality with piling time in Summer for spruce and DF, suggesting an optimum window of processing of such exposed logs of about two weeks. Veneer quality and recovery suffered markedly once the logs had fully air dried mainly because of edge splits creating natural fragmentation of the ribbon. 5. Mills receiving dry-zone logs with much lower MC have a very limited storage window, especially over winter. As little as 2-3 weeks if bark is damaged or missing. 6. Veneer quality could not be definitively tied to log residual MC. Under the controlled laboratory conditions used here it was observed that peeling quality could still be good at low sapwood MC (35-40%) and or very high (MC>100%). Whether this is still the case in mill production is unknown. 7. Logs must never be allowed to fall below FSP and develop edge-checks or deep end checks. 8. Wax emulsion end sealants were effective at hampering drying and end checking on high MC logs, but not effective on low MC logs. 9. Sprinkling retained log freshness and peel quality in high MC DF for several months and prevented log drying and end splitting as well as inner log staining. Ends absorbed considerable extra moisture. Some variability in peel quality was noted. 10. The prototype EM1000 Ground Penetrating Radar could only be reliably used in log edge mode in DF. The unit would also require re-calibration for the very high sapwood MC in spruce and wet-zone DF logs.
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Fire-resistance of timber-concrete composite floor using laminated veneer lumber

https://library.fpinnovations.ca/fr/permalink/fpipub40133
Auteur
Ranger, Lindsay
Dagenais, Christian
Cuerrier-Auclair, Samuel
Date
April 2016
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Ranger, Lindsay
Dagenais, Christian
Cuerrier-Auclair, Samuel
Collaborateur
Forestry Innovation Investment
Date
April 2016
Genre du document
Research report
Description physique
28 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Fire
Resistance
Structural composites
Wood
Concrete
Laminate product
Veneer
Floors
Série
E-4960
Localisation
Québec, Québec
Langue
English
Résumé
There is a need to demonstrate how novel timber-concrete composite floors can span long distances and be a practical alternative to other traditional structural systems. Better understanding of the fire behaviour of these hybrid systems is essential. To achieve this, the fire-resistance of a timber-concrete composite floor assembly, using BC wood products, will be evaluated in accordance with CAN/ULC-S101 [2]. A 2 hr fire resistance rating will be targeted, as this is the current requirement in high-rise buildings for floor separations between occupancies. The structural behaviour of this type of system will also be assessed from conducting pull-out tests of the shear connectors. In conjunction with previous test data, the results of this test will be used to develop an analytical model to assess the structural and fire-resistance of timber-concrete composite floors. 301010618
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Development of bio-modified of chitosan-based adhesives for wood composites

https://library.fpinnovations.ca/fr/permalink/fpipub5798
Auteur
Wang, Xiang-Ming
Yang, D.-Q.
Zhang, Yaolin
Feng, Martin
Huang, Z.
He, G.
Date
February 2016
Édition
40114
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Wang, Xiang-Ming
Yang, D.-Q.
Zhang, Yaolin
Feng, Martin
Huang, Z.
He, G.
Date
February 2016
Édition
40114
Genre du document
Research report
Description physique
36 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Adhesives
Environment
Wood composites
Série
Transformative Technologies - Development of "Green" Wood Adhesives for Wood Composite Products
Project no.301006168
E-4956
Localisation
Québec, Québec
Langue
English
Résumé
Chitosan is an amino polysaccharide obtained from the deacetylation of chitin, which is naturally occurring in the shells of a large number of marine crustaceans. Chitosan is soluble in weakly acidic aqueous solutions and possesses adhesive properties. Chitosan has received much attention for medical and industrial applications; however, only limited studies have been conducted on the application of chitosan as a wood adhesive, because its bonding properties on wood are poor. To improve the adhesive quality of chitosan resin, an innovative study on chitosan adhesives has been conducted to use selected fungal species to modify chitosan and improve its bonding properties, to synthesize non-formaldehyde resins with the fungus-modified chitosan, and to enhance urea-formaldehyde (UF) and phenol-formaldehyde (PF) resin performance with the fungus-modified chitosan. The bonding properties of wood composites made with these chitosan-based green wood adhesives were significantly improved, in terms of lap-shear strength. Unmodified chitosan solution was not compatible with ammonium lignosulfonate, liquid PF resin, soybean resin, powder PF resin, or soybean flour, but was compatible with UF resin, polyvinyl acetate (PVA) resin, and phenol. With the addition of chitosan in UF and PVA resins, both the dry and wet shear strengths of plywood panels were improved, compared with those of panels bonded with the control UF and PVA resins, i.e. without chitosan. A number of chitosan and chitosan-reinforced UF resins were prepared as a binder for particleboard panel manufacturing. Six (6) types of particleboard panels with different levels of resin loadings and press conditions were manufactured. The resulting boards were tested to evaluate the bond quality of the chitosan and chitosan-reinforced UF resins. The test results showed that particleboard panels with good visual quality could be produced with all formulations of chitosan-UF adhesives, even with resin systems made with 1% of chitosan resin only. All chitosan resins used alone or added to UF resins yielded panels with better internal bond (IB) strength than those made with the UF control resin. The panels made with 1% chitosan resin plus 66% UF resin in a 1:1 ratio yielded panels with the highest IB strength and the best overall mechanical properties.
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Évaluation de nouvelles approches pour réduire la courbure des rangs du haut des chargements de séchoirs

https://library.fpinnovations.ca/fr/permalink/fpipub5808
Auteur
Savard, Marc
Gignac, Manon
Labrecque, Guy
Date
March 2016
Édition
40213
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Savard, Marc
Gignac, Manon
Labrecque, Guy
Date
March 2016
Édition
40213
Genre du document
Research report
Description physique
16 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Lumber drying
Kilns
Lumber defects
Série
301010408
E-4978
Localisation
Québec, Québec
Langue
French
Résumé
Des pièces de bois sont régulièrement rejetées à l’entrée de la raboteuse en raison de courbures excessives. Elles proviennent en majorité des rangs du haut des chargements de séchoirs. À cet endroit, les pièces ne sont pas contraintes, et les conditions de séchage sont souvent plus sévères. Dans une étude antérieure de Forintek Canada Corp., Garrahan (1997) a démontré l’impact du poids de chacune des rangées sur le déclassement du bois en fonction de la hauteur du chargement. La figure 1 montre que les pertes en valeur diminuent du haut du chargement jusqu’au bas. Le poids exercé par les rangées supérieures est de plus en plus important et permet de contraindre le bois en place en cours de séchage.
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Développement d'un prototype industriel de reséchage par haute fréquence en continu

https://library.fpinnovations.ca/fr/permalink/fpipub5818
Auteur
Lavoie, Vincent
Tanguay, F.
Kendall, J.
Date
April 2016
Édition
40274
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Lavoie, Vincent
Tanguay, F.
Kendall, J.
Date
April 2016
Édition
40274
Genre du document
Research report
Description physique
23 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Drying
Kilns
Seasoning high frequency
Série
E-4981
Localisation
Québec, Québec
Langue
French
Résumé
La technologie de séchage par haute fréquence en continu développée par FPInnovations et Hydro-Québec a récemment été démontrée à l’échelle semi-industrielle (précommerciale) (Lavoie et al. 2015). Les essais de séchage ont porté principalement sur des applications de produits à valeur ajoutée. La technologie est viable techniquement et peut répondre à des besoins de séchage de précision pour des applications spécifiques. La technologie a également le potentiel de resécher des pièces demeurées humides (volontairement ou involontairement) lors de la production de bois d’œuvre.
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Multi-modal approach to kiln drying of BC coastal lumber products

https://library.fpinnovations.ca/fr/permalink/fpipub52669
Auteur
Oliveira, Luiz C.
Lazarescu, Ciprian
Date
June 2016
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Oliveira, Luiz C.
Lazarescu, Ciprian
Collaborateur
BC Coastal Forest Industry
Date
June 2016
Genre du document
Research report
Description physique
31 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Drying
Lumber
Kilns
Productivity
Costs
Localisation
Vancouver, British Columbia
Langue
English
Résumé
BC Coastal mills will need to diversify the drying technologies currently used and consider new approaches in order to improve productivity, reduce drying costs, regain competiveness and continue to play a significant role in the increasingly stringent quality market for forest products. New demands for drying are related to energy efficiency, low environmental impact and of course, quality of the final product. The specific objectives of the project were: (1) to improve the conventional drying of 4.5” x 4.5” Douglas-fir lumber, (2) to evaluate the superheated steam/vacuum (SS/V) drying of 4.5” x 4.5” Douglas-fir lumber, (3) to develop a green sorting strategy for hem-fir lumber and (4) to determine the time required to reach 56°C in the core of 5¼ x 5¼ lumber using the requirements of CFIA PI-07 Heat Treatment schedule Option D - Generic Phytosanitary Heat Treatment Schedule, Heat Treatment with Moisture Reduction. The results showed that the drying time in conventional drying of 4.5” x 4.5” Douglas-fir lumber can be reduced by up to 25% without compromising the quality of the lumber. This can be achieved by increasing the temperature in the final drying stages and using lower relative humidity at the beginning of the drying process. In addition, final moisture content (MC) variation was reduced from 6.2% to 3.9%. Reductions of drying times from 26% to 41% were observed when drying 4.5” x 4.5” Douglas-fir under SS/V drying. Quality of the lumber at the end of drying was better when compared to the quality of the lumber at the end of conventional drying. In addition, specimens exhibited less final MC variation. Based on drying rate measurements of green hem-fir lumber dried to 9.0% MC, a new database was developed which in turn was incorporated into OASiS 2.0 software to evaluate different pre-sorting scenarios. Pre-sorting simulations allow end users to estimate the impact of kiln productivity, final MC distribution and drying degrade. The results showed that different correlations between the time to reach 19.0% MC and initial weight or initial MC could be established. The best correlation with an R square of 0.77 was made between initial weight and MC. After performing several simulations with the new database an optimum cut-off point of 65% yielded the best results in terms of potential increase of productivity and quality of the final product. Wood heating rate test results showed that CFIA Option D may be extended for 5¼ x 5¼ lumber as long as the dry-bulb = 71°C (= 160°F) for 36 hours at the end of the heat treatment. Total heat treatment time required, including the time required to reach 71°C (160°F), is 72 hours.
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Dynamic properties of tall mass timber buildings under wind-induced vibration

https://library.fpinnovations.ca/fr/permalink/fpipub53027
Auteur
Cuerrier-Auclair, Samuel
Date
April 2016
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Cuerrier-Auclair, Samuel
Collaborateur
Forestry Innovation Investment
Date
April 2016
Genre du document
Research report
Description physique
2 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Structural composites
Wood
Laminate product
Veneer
Floors
Série
E-4960
Localisation
Québec, Québec
Langue
English
Résumé
FPInnovations launched a multi-year research project to measure mid- to high-rise wood buildings’ natural frequencies and damping ratios to expand the database and validate or adapt the existing equations to estimate the natural frequencies. Two high-rise wood buildings equipped with an anemometer and accelerometers are also being constantly monitored to study how the wind excites the building.
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Le contrôle des moisissures avant et après séchage

https://library.fpinnovations.ca/fr/permalink/fpipub49652
Auteur
Gignac, Manon
Date
2016
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Gignac, Manon
Date
2016
Genre du document
Research report
Description physique
36 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Fungi
Wood
Wood fungi
Forestry
Drying
Prevention
Localisation
Québec, Québec
Langue
French
Résumé
Pour différentes raisons, les moisissures représentent un défi constant lors de la production de bois résineux et feuillus : santé, environnement, qualité et stratégies de production. Elles sont aussi une préoccupation constante pour les consommateurs et à l’origine de réclamations qui peuvent être très coûteuses pour les producteurs. Un sondage en 2014 dans l’Est du Canada révélait qu’en moyenne les coûts annuels liés à la détérioration biologique étaient de 60 000 $ par usine. Dans le cas d’une usine intégrée, spécialisée en transformation primaire et secondaire de feuillus et résineux, ces coûts avaient atteint près de 475 000 $ pour cette même année. Ces coûts sont liés à un ensemble de facteurs : modification du procédé, perte de productivité, réclamations, pertes de ventes (Gignac, 2015). Plusieurs facteurs peuvent contribuer au développement de moisissures dont la teneur en humidité du bois, les conditions climatiques et la durabilité naturelle propre à l’essence de bois. Avec les années, FPInnovations a acquis beaucoup de connaissances, accumulé beaucoup d’information, de données et de savoir-faire à travers ses projets de recherche et son soutien technique à l’industrie. En combinaison avec d’autres données disponibles dans la communauté scientifique, nous proposons de résumer l’information pertinente pour l’industrie et de la présenter sous forme de document de vulgarisation. Ce document se veut un outil simple et pratique pour le personnel de l’industrie de la transformation du bois afin de les soutenir dans la prise de décision concernant les stratégies d’entreposage, de séchage à l’air, séchage au séchoir, gestion du bois sec et transport jusqu’à sa destination finale, le consommateur. Ce document de référence regroupe les connaissances générales en lien avec les problématiques de moisissures.
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Performance of borate-treated glulam and LVL after eight years in an accelerated above-ground field test

https://library.fpinnovations.ca/fr/permalink/fpipub40029
Auteur
Ingram, Janet K.
Morris, Paul I.
Date
June 2015
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Ingram, Janet K.
Morris, Paul I.
Collaborateur
Natural Resources Canada. Canadian Forest Service
Date
June 2015
Genre du document
Research report
Description physique
58 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Composites
Laminate product
Preservatives
Preservatives boron
Série
Field Performance of Durable Wood Products
Langue
English
Résumé
Glulam and laminated veneer lumber protected by a combination of treatment with borate by two processes, and a film-forming coating, were exposed outdoors in an above-ground field test using a modified post and rail test design. After eight years’ exposure, early to moderate decay was found in untreated test units, while those which were borate-treated by either method were generally sound up to six years and showed greatly reduced decay at eight years.
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Performance of preservative-treated glulam after six years in an accelerated above-ground field test

https://library.fpinnovations.ca/fr/permalink/fpipub40036
Auteur
Ingram, Janet K.
Morris, Paul I.
Date
June 2015
Genre du document
Research report
Domaine
Wood Manufacturing & Digitalization
Auteur
Ingram, Janet K.
Morris, Paul I.
Collaborateur
Natural Resources Canada. Canadian Forest Service
Date
June 2015
Genre du document
Research report
Description physique
23 p.
Secteur
Wood Products
Domaine
Wood Manufacturing & Digitalization
Champ de recherche
Advanced Wood Manufacturing
Sujet
Composites
Laminate product
Preservatives tests
Série
W3214
Langue
English
Résumé
Glulam manufactured from laminating stock of three species pre-treated with ACQ-D or CA was exposed outdoors in an above-ground field test using a modified post and rail test design. After six years’ exposure, early to moderate decay was found in untreated test units, while those which were preservative-treated were completely sound.
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