1 edition of Improving the stability of oriented strand board manufactured from mountain pine beetle wood found in the catalog.
Improving the stability of oriented strand board manufactured from mountain pine beetle wood
Kathleen Margaret Semple Chow
|Statement||Kate Semple, Ian Cullis, Philip Evans|
|Series||Mountain pine beetle working paper -- 2009-18|
|Contributions||Cullis, Ian, Evans, P. D. (Philip D.), Pacific Forestry Centre|
|LC Classifications||TS875 .C469 2009|
|The Physical Object|
|Pagination||viii, 61 p. :|
|Number of Pages||61|
|LC Control Number||2010497115|
Dimentional stability of wood. Dimensional stability is a coefficient which shows the resistance of the wood to environmental changes such as moisture or temperature. In other words all wood change in sizes (shrink or swell) under certain conditions and the minimal changes (lower number on the scale) indicate higher dimensional stability. Jan 01, · The use of reactive polyolefin and phenol formaldehyde (PF) resin blends to improve the moisture durability of oriented strand composite (OSC) panels was investigated. Test panels were hot pressed with adhesive blends consisting of varying proportions of PF and maleic anhydride polypropylene (MAPP) anionic emulsion, and their physical and Cited by: 1.
Oriented Strand Board (OSB) is a product that has been manufactured and used successfully in North America for decades, but has only been available through Australian suppliers in the past decade. OSB is a structural panel product produced by bonding together thin wood strands with adhesive. Start studying Brannigan's Building Construction for the Fire Service. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
Jun 18, · OSB vs. Plywood Sheathing June 18, Framing & Decks, Housewrap & Waterproofing When you frame a house, the 2×4 studs provide tremendous strength to the forces pulling straight down on the house, but the structural sheathing used on the outside is what resists the racking forces placed on the house from wind. Aug 09, · The steady recovery in the US housing market from the global economic recession of –09 has resulted in strong demand for softwood lumber, driving prices upward. At the same time, the effect of the mountain pine beetle on British Columbia’s lodgepole pine trees has reduced the size of the Canadian timber harvest.
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Oriented strand board (OSB) accounts for a large share of the market for sheathing and sub-floor underlay, but because of its lower dimensional stability when exposed to moisture, it has not completely replaced plywood.
The manufacture of OSB represents one of the major ways in which value can be recovered from mountain pine beetle-killed wood. A study was carried out to examine log rehydration as a means for improving the quality of OSB strands manufactured from lodgepole pine (Pinus contorta Dougl.) killed by the mountain pine beetle.
Get this from a library. Improving the stability of oriented strand board manufactured from mountain pine beetle wood. [Kathleen Margaret Semple. To improve wood utilization efficiency, oriented strandboard (OSB) was developed; 80% of the wood removed from the forest can now be processed into marketable products.
This manuscript describes the history of developing this most profitable wood product, OSB, and the early FPL contribu.
OSB (oriented strand board) was manufactured from wood pallet waste. The pallets were shredded, and small strands were made using a ring flaker. The small strands were 10mm-mesh screened, as a result long strands in the direction of the fiber were obtained. OSB was manufactured.
The overall objective was to use waste plywood and medium density fiberboard (MDF) to manufacture a new type of board. The dimensional stability of board was improved by mechanical inhibition between laths along the thickness direction.
Chipboard manufactured from waste materials has extra carbon offset value making a contribution to a sustainable environment. Oriented strand board (OSB) is an engineered, composite, wood-based panel product, designed as a structural replacement for sheathing grades of angelstouch16.com by: 2.
The Canadian Forest Service promotes the sustainable development of Canada addition to black liquor to decrease tall oil soap solubility and increase skimming efficiency in kraft mills pulping mountain pine beetle-infested wood.
Uloth, V Improving the stability of oriented strand board manufactured from mountain pine beetle wood. Oriented Strand Board Jyh-Horng Wu The wood composition boards Jyh-Horng Wu The wood composition boards Jyh-Horng Wu Flakeboard is a term that also includes waferboard (WB) and oriented strandboard (OSB).
They are structural panels produced from wafers obtained from logs. The first waferboard plant was opened in by MacMillan Bloedel in Canada.
“OSB” means oriented strand board, which is a structural wood panel manufactured with wood strands and heat-cured adhesives; Ÿ “pulpwood” refers to small logs (typically 4 to 8 inches diameter-at-breast-height), which are generally converted into wood chips for use in the production of pulp and paper products as well as OSB.
Dimensional Stability of Particle Board and Radiata Pine Wood (Pinus radiata D. Don) Treated with Different Resins Nellie Oduor Ellis, W. and R. Rowell (). “Reaction of isocyanates with southern pine wood to improve dimensional stability and decay resistance.” Wood.
Machined tapers reduce the differential edge swelling of oriented strand board exposed to water. Philip D. Evans, Martin Miesner, Doug Rogerson. Improving the stability of oriented strand board manufactured from mountain pine beetle wood. Please note: This older article by our former faculty member remains available on our site for archival purposes.
Some information contained in it may be outdated. Manufacturers of oriented strandboard and plywood claim both products work well. But using panels made of wood chips makes some builders nervous.
Like it or not, osb will define the future [ ]. Reducing the differential edge swelling of oriented strand board Wood Technological Association of Bleaching treatments for blue-stained lodgepole pine affected by the mountain pine beetle Dendroctonus ponderosae.
Adverse effects of heartwood on the mechanical properties of wood-wool cement boards manufactured from radiata pine wood. Weyerhaeuser oriented strand board (OSB) and engineered wood products (EWP) including TimberStrand® LSL, Parallam® PSL, Microllam® LVL, and TJI® joists.
These five products are manufactured at a moisture content that is typically less than 10% and are intended for dry-use applications as specified in the product’s ICC-ES or CCMC. Oriented strand board (OSB) experiences undesirable thickness swelling when it absorbs water.
One solution to this problem is to treat OSB with water-repellents containing waxes. LSL is made by aligning thin chips or strands of wood and then gluing them under pressure.
The wood grain of the strands is oriented parallel to the length of the member and then the wood member is machined to consistent finished sizes.
It is strong when either face- or edge-loaded, but typically has lower strength and stiffness properties than LVL. OSB (Oriented Strand Board) is an engineered wood-based panel consisting of strands of wood which are bonded together with a synthetic resin; the strands are pressed together in layers.
In the outer layers strands are generally oriented longitudinally in line with the panel length, whereas in the middle layers strands generally lie in a cross.
Oriented strand board (OSB) is an engineered wood-based panel consisting of strands of wood that are bonded together with a synthetic resin; the strands are oriented, partially randomly overlapped, and pressed together in layers (Hodoušek et al., ).
In the outer layers, strands are generally oriented Cited by: 2. Laminated strand lumber (LSL) and oriented strand lumber (OSL) are manufactured from flaked wood strands that have a high length-to-thickness ratio. Combined with an adhesive, the strands are oriented and formed into a large mat or billet and pressed.
The NEW Plywood - Oriented Strand Board. Q: Last weekend we drove through a local subdivision that is under construction.I noticed that the builder was using wood wall panels which looked like a bunch of pressed wood flakes (instead of normal plywood).The objective of this research was to evaluate the physical and mechanical properties of strand board made from construction scrap wood.
The strand board was manufactured using Sugi (Cryptomeria japonica D. Don) and Douglas-fir (Pseudotsuga japonica) strands selected from construction scrap angelstouch16.com strands were oriented, and three-layer (face/core/face) strand board of three types was Cited by: A task group of ASTM Subcommittee D on Panel Products is drafting a Practice for Establishing Allowable Design Capacities for Oriented Strand Board (OSB) Wood-Based Structural-Use Panels, to establish allowable design values and set a standard of quality for the expanding use of OSB panels in commercial construction, roof sheathing.