Engineered Wood Handbook and Grade Glossary
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Fundamental Studies on Wood/Cellulose-Plastic Composites
J Wood Sci (2007) 53:470–480 © The Japan Wood Research Society 2007 DOI 10.1007/s10086-007-0889-5 ORIGINAL ARTICLE Rashmi Kumari · Hirokazu Ito · Masahiro Takatani Miho Uchiyama · Tadashi Okamoto Fundamental studies on wood/cellulose–plastic composites: effects of composition and cellulose dimension on the properties of cellulose/PP composite Received: September 6, 2006 / Accepted: February 9, 2007 / Published online: May 29, 2007 Abstract Although wood/cellulose–plastic composites Introduction (WPC) of low wood/cellulose content have been more ac- cepted worldwide and are promoted as low-maintenance, high-durability building products, composites containing In recent years, interest in composites based on renewable high wood/cellulose content are not yet developed on an materials has grown tremendously because of social re- industrial scale. In this study, fl ow properties, mechanical quests for low environmental stress, low-maintenance and properties, and water absorption properties of the com- high-durability products, and ultraviolet (UV) durability.1–3 pounds of cellulose microfi ber/polypropylene (PP) and Construction, transportation, industrial, and consumer ap- maleic anhydride-grafted polypropylene (MAPP) were in- plications for wood/cellulose–plastic composites (WPC) are vestigated to understand effects of the high cellulose con- all on the rise. WPC have been primarily produced with a tent and the dimensions of the cellulose microfi ber. The low and medium percentage of wood/cellulose. Products molding processes studied included compression, injection, typically contain approximately 50% (by weight) wood/ and extrusion. It was found that fl uidity is not only depen- cellulose, although some composites contain very little dent on resin content but also on the dimension of the fi ller; wood/cellulose and others as much as 60%.1,4–7 Wood/ fl uidity of the compound declined with increased fi ber cellulose content may range from 70% to 90% and the length with the same resin content. -
The Miracle Resource Eco-Link
Since 1989 Eco-Link Linking Social, Economic, and Ecological Issues The Miracle Resource Volume 14, Number 1 In the children’s book “The Giving Tree” by Shel Silverstein the main character is shown to beneÞ t in several ways from the generosity of one tree. The tree is a source of recreation, commodities, and solace. In this parable of giving, one is impressed by the wealth that a simple tree has to offer people: shade, food, lumber, comfort. And if we look beyond the wealth of a single tree to the benefits that we derive from entire forests one cannot help but be impressed by the bounty unmatched by any other natural resource in the world. That’s why trees are called the miracle resource. The forest is a factory where trees manufacture wood using energy from the sun, water and nutrients from the soil, and carbon dioxide from the atmosphere. In healthy growing forests, trees produce pure oxygen for us to breathe. Forests also provide clean air and water, wildlife habitat, and recreation opportunities to renew our spirits. Forests, trees, and wood have always been essential to civilization. In ancient Mesopotamia (now Iraq), the value of wood was equal to that of precious gems, stones, and metals. In Mycenaean Greece, wood was used to feed the great bronze furnaces that forged Greek culture. Rome’s monetary system was based on silver which required huge quantities of wood to convert ore into metal. For thousands of years, wood has been used for weapons and ships of war. Nations rose and fell based on their use and misuse of the forest resource. -
GP LAM® Laminated Veneer Lumber PR-L257(F)
GP LAM® Laminated Veneer Lumber PR-L257(F) Georgia-Pacific Wood Products LLC Revised February 12, 2008 Products: GP Lam® 1.8-SP, 1.9-ES, 2.0-ES and 2.1-ES LVL Georgia-Pacific Wood Products LLC, 1000 North Park Drive, Roxboro, North Carolina 27573 (336) 599-1000 www.gp.com 1. Basis of the product report: • 2006 International Building Code: Section 104.11 Alternative Materials • 2006 International Residential Code: Section R104.11 Alternative Materials • 2004 Florida Building Code, Building: Section 104.11 Alternative Materials • ASTM D 5456-03 recognized by the 2006 International Building Code • ASTM D 5456-05 recognized by the 2006 Supplement to the 2004 Florida Building Code • APA Reports T2002P-44, T2002P-45, T2003M-13, T2003P-46, T2004M-41, T2004M-56, T2004M-80, T2005M-23, T2005M-97 and other qualification data 2. Product description: GP Lam® LVL is made with veneer sheets of various species and grades in accordance with the in-plant manufacturing standard approved by APA. GP Lam® LVL are available in thicknesses from 3/4 inch to 5-1/4 inches, widths of 1-1/2 inches to 48 inches and lengths up to 80 feet. 3. Design properties: Table 1 lists the design properties and Table 2 lists the equivalent specific gravities for connection design for GP Lam® LVL. The allowable spans for GP Lam® LVL shall be in accordance with the recommendations provided by the manufacturer as published in the GP Engineered Lumber Residential Floor and Roof Systems Product Guide (Lit. Item 123040 dated June 2006). 4. Product installation: GP Lam® LVL shall be installed in accordance with the recommendations provided by the manufacturer as published in the GP Engineered Lumber Residential Floor and Roof Systems Product Guide (Lit. -
LP Solidstart LVL Technical Guide
U.S. Technical Guide L P S o l i d S t a r t LV L Technical Guide 2900Fb-2.0E Please verify availability with the LP SolidStart Engineered Wood Products distributor in your area prior to specifying these products. Introduction Designed to Outperform Traditional Lumber LP® SolidStart® Laminated Veneer Lumber (LVL) is a vast SOFTWARE FOR EASY, RELIABLE DESIGN improvement over traditional lumber. Problems that naturally occur as Our design/specification software enhances your in-house sawn lumber dries — twisting, splitting, checking, crowning and warping — design capabilities. It ofers accurate designs for a wide variety of are greatly reduced. applications with interfaces for printed output or plotted drawings. Through our distributors, we ofer component design review services THE STRENGTH IS IN THE ENGINEERING for designs using LP SolidStart Engineered Wood Products. LP SolidStart LVL is made from ultrasonically and visually graded veneers arranged in a specific pattern to maximize the strength and CODE EVALUATION stifness of the veneers and to disperse the naturally occurring LP SolidStart Laminated Veneer Lumber has been evaluated for characteristics of wood, such as knots, that can weaken a sawn lumber compliance with major US building codes. For the most current code beam. The veneers are then bonded with waterproof adhesives under reports, contact your LP SolidStart Engineered Wood Products pressure and heat. LP SolidStart LVL beams are exceptionally strong, distributor, visit LPCorp.com or for: solid and straight, making them excellent for most primary load- • ICC-ES evaluation report ESR-2403 visit www.icc-es.org carrying beam applications. • APA product report PR-L280 visit www.apawood.org LP SolidStart LVL 2900F -2.0E: AVAILABLE SIZES b FRIEND TO THE ENVIRONMENT LP SolidStart LVL 2900F -2.0E is available in a range of depths and b LP SolidStart LVL is a building material with built-in lengths, and is available in standard thicknesses of 1-3/4" and 3-1/2". -
BEST PRACTICES for STUCCO APPLICATIONS GUIDE Revised April 1, 2019
LENEXA – BEST PRACTICES for STUCCO APPLICATIONS GUIDE Revised April 1, 2019 This document is provided through endorsement by the Johnson County Building Officials. General Exterior wall coverings, along with the roofing, flashings, windows and doors, are designed to provide a weather-resistive barrier that separates the interior of the structure from the elements. Low maintenance and attractive appearance are just two reasons why hard coat stucco has become so popular over the years. At the same time, the building industry has become aware of the need to protect the exterior wall sheathing from moisture damage. The walls shall be constructed so that water does not accumulate within the assembly. This means creating a water-resistive plane behind the exterior veneer that allows moisture that does get into the wall to drain down and out without coming in contact with the wood framing. Detailing around windows, doors and other penetrations in the envelope is equally important in protecting the wood frame structure behind the stucco from being damaged by water infiltration. Since the wall sheathing behind the stucco is the lateral load resisting system of the structure, in addition to the supporting surface for the exterior siding, it is important to see that continuous undetected penetrations of the siding by moisture do not create structural damage such as decay and corrosion or environmental damage which may cause health related problems such as the growth of mold and mildew. To this end, the removal of moisture that gets past the exterior envelope before it contacts the wood framing is the primary goal of the weather-resistive barrier and why it is critical that it be installed properly. -
Section 09220 Portland Cement Plaster
PROJECT NO. ####### PROJECT TITLE CONTRACT TITLE SECTION 09220 PORTLAND CEMENT PLASTER PART I - GENERAL 1.01 DESCRIPTION A. Scope: Work under this Section shall include all materials and installation for Portland Cement Plaster (Stucco) siding as shown and detailed on the drawings and specified herein. B. Related Work Specified Elsewhere: 1. Division 6, Section 06100 – ROUGH CARPENTRY 1.02 SUMMARY A. This Section includes the following: 1. Metal framing and furring 2. Metal lath and accessories 3. Plastic accessories 4. Portland cement plaster 5. Stucco finishes 1.03 SUBMITTALS A. General: See Division 1, Section 01330 – Shop Drawings, Product Data and Samples. B. Product Data for each product specified. C. Samples for initial selection in the form of manufacturer's color charts consisting of actual units or sections of units at least 12” square showing the full range of colors, textures, and patterns available for each type of finish indicated. 1. Where finish involves normal color and texture variations, include Sample sets composed of 2 or more units showing the full range of variations expected. 2. Include similar Samples of material for joints and accessories involving color selection. 1.04 DELIVERY, STORAGE, AND HANDLING A. Deliver cementitious materials to Project site in original packages, containers, or bundles, labeled with manufacturer's name, product brand name, and lot number. B. Store materials inside, under cover, and dry, protected from weather, direct sunlight, surface contamination, aging, corrosion, and damage from construction traffic and other causes. 09220 - 1 PORTLAND CEMENT PLASTER 07/2014 Edition PROJECT NO. ####### PROJECT TITLE CONTRACT TITLE 1.05 PROJECT CONDITIONS A. -
Engineered Wood Installation 3/8” Or 1/2” Tongue & Groove: Float, Nail/Staple & Full Spread Gluedown Read These Instructions Completely Before Beginning Installation
ENGINEERED WOOD INSTALLATION 3/8” OR 1/2” TONGUE & GROOVE: FLOAT, NAIL/STAPLE & FULL SPREAD GLUEDOWN READ THESE INSTRUCTIONS COMPLETELY BEFORE BEGINNING INSTALLATION. GENERAL INFORMATION Smoking by individuals exposed to asbestos fibers greatly increases the risk of serious ATTENTION INSTALLERS bodily harm. Unless positively certain that the existing in-place product is a non- asbestos-containing material, you must presume it contains asbestos. Regulations WARNING: Installation of wood product may create wood dust, which is may require that the material be tested to determine asbestos content and may known to the state of California to cause cancer. Avoid inhaling wood dust or govern removal and disposal of material. See current edition of the Resilient Floor use a dust mask or other safeguards for personal protection. Covering Institute (RFCI) publication Recommended Work Practices for Removal Sawing, sanding and machining wood products can produce of Resilient Floor Coverings for instructions on removing all resilient floor covering wood dust. Airborne wood dust can cause respiratory, eye and structures. skin irritation. The International Agency for Research on Cancer If you have technical or installation questions please call 1-800-258-5758 (IARC) has classified wood dust as a nasal carcinogen in humans. IMPORTANT HEALTH NOTICE FOR RESIDENTS OF MINNESOTA ONLY: Precautionary Measures: If power tools are used, they should be equipped THESE BUILDING MATERIALS EMIT FORMALDEHYDE. EYE, NOSE, AND with a dust collector. If high dust levels are encountered, use an appropriate THROAT IRRITATION, HEADACHE, NAUSEA AND A VARIETY OF ASTHMA- NIOSH-designated dust mask. Avoid dust contact with eye and skin. LIKE SYMPTOMS, INCLUDING SHORTNESS OF BREATH, HAVE BEEN First Aid Measures in Case of Irritation: In case of irritation, flush eyes REPORTED AS A RESULT OF FORMALDEHYDE EXPOSURE. -
WOOD | Natural Woodchips™
WOOD | Natural WoodChips™ TORGINOL® Natural WoodChips™ are manufactured from a range of premium quality natural and engineered wood veneer species. 4617 South Taylor Drive Reclaim your environment with the holistic serenity of organic wood. Sheboygan, WI 53081 | USA TORGINOL® Natural WoodChips™ will enhance your environment (920) 694-4800 [email protected] | www.torginol.com with ecological simplicity. This innovative wood flooring solution combines the hygienic benefits of seamless flooring with nature’s TYPICAL WOOD SYSTEM elegant wood grains, sustaining a timeless appeal for the life of your floor. PERFORMANCE SPECIFICATIONS Color (Natural) Visual Evaluation (ASTM D4086) Pass * Dry Film Thickness Micrometer (ASTM D1005) 6 - 8 mils TMTM Shape Visual Evaluation (ASTM D4086) Random PROTECTIVE TOPCOAT Odor Olfactory (ASTM D1296) Odorless CLEAR GROUT COAT Moisture Content (< 5%) Moisture Meter (ASTM D4442) Pass NATURAL WOODCHIPS Size Distribution (~3/8”) Normal Sieve Analysis (ASTM C136) Pass PIGMENTED BASECOAT COVERAGE RATE GUIDELINES PRIMER/SEALER Type Size Full Coverage CONCRETE All ~ 3/8” 15 - 20 SF / LB *For best results, a sanding coat is recommended Coverage rates may vary depending on customer preferences and application techniques. prior to applying the final topcoat(s). WOOD SPECIES LIMITATIONS A Natural Product Wood is a natural material and may not be uniform in appearance. Natural variations in the characteristics of individual pieces W1010 / HONEY MAPLE W1000 / POWDERED ASPEN W2010 / WHITE ASH should not be considered defects. The color and grain variations contribute to the wood veneer’s unique character and beauty. Aging and Light Exposure W1015 / WINTER BIRCH W1040 / CLASSIC MAHOGANY W2015 / AGED HICKORY Wood ages naturally over time as it is exposed to light and other environmental elements. -
Download This Article in PDF Format
E3S Web of Conferences 116, 00047 (2019) https://doi.org/10.1051/e3sconf/201911600047 ASEE19 Recognition of emission from the wood based products waste combustion using differential ion mobility spectrometry Monika Maciejewska1,*, Andrzej Szczurek1, and Żaneta Zajiczek1 1Faculty of Environmental Engineering, Wroclaw University of Science and Technology, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland Abstract. This work was focussed on the recognition of the emission of volatile compounds resulting from the combustion of engineered wood products waste. This kind of waste is broadly used for heating purposes in an unauthorised way, giving rise to unorganised emissions. The recognition of such events is very difficult due to the complexity of the produced gas mixture. We proposed to apply differential ion mobility spectrometry (DMS). This is a promising technique in terms of complex gas mixtures measurements. The recognition was based on the measurements of ambient air in the vicinity of the emission source and classification. The ensemble of classification trees was chosen as the classier. The obtained results showed that volatile compounds resulting from the combustion of wood based boards waste produced the distinctive DMS spectra, which could be used as the basis for the effective recognition. We achieved almost 100 % successful recognition of: 1) ambient air which contained volatile compounds resulting from OSB board waste combustion, 2) ambient air which contained volatile compounds resulting from MDF board waste combustion, and 3) ambient air, which was did not contain volatile compounds of this kind. The presented results have a considerable practical value. The DMS spectrometer was successfully applied to recognize wood-based boards waste combustion in field conditions. -
GLOSSARY for WOOD BASED PANEL PRODUCTS (The Text Contains More Common Panel Terms.)
GLOSSARY FOR WOOD BASED PANEL PRODUCTS (The text contains more common panel terms.) AIS - Abbreviation for asphalt impregnated Glulam - Short for glued laminated beam. These sheathing. A fibreboard product used for exterior are made of several layers of “lumber” glued wall sheathing. It contains asphalt mixed into the together in layers to form one structural piece. fibres to assist in improving weatherability. Interior Type - Moisture resistant glue is used to Butt Joint - The joint formed when two panels make this plywood, rather than 100% exterior meet but do not overlap. glue. Interior type also permits lower grade veneers. Chamfer - The flat surface left when cutting off the square edge of a panel or lumber. Lumber Core - The inner part of a wood veneered product that has lumber strips rather Cleaned and Sized - A light surface mechanical than more plywood veneers. process that removes material form the surface to provide an even surface and a panel of Non-certified - Plywood not certified by an uniform thickness. accepted agency as meeting the appropriate standards. Non-certified plywood is not accepted Composite - Made up of several items. by building codes and some other organizations. Panels may bear the mark of the manufacturer, Core - In a 3-ply panel, the innermost part but this is not a substitute for an accepted contained between the surfaces. In 5-ply, the certifying agency grade stamp. innermost ply contained between the cross bands. O & ES - Abbreviation for oiled and edge sealed, a process done to plywood concrete Crossband - The core veneers at right angles to form panels. -
A Future Vision for Optimally Using Wood and Biomass
June 2008:Forest Products 6/5/08 9:09 PM Page 6 Integrated Biomass Technologies: AA Future Future Vision Vision for for Optimally Using Abstract Exciting new opportunities are emerging for sustainably meeting many global energy needs and simultaneously creating highvalue biobased consumer and construction products from wood, forest and agricultural residues, and other biobased materials. In addition to traditional valueadded bio based products, such as lumber, paper, paperboard, and composites, opportunities are now on the hori zon for biorefining to produce electricity, transportation fuels, chemical feedstocks, syngas, and nanocrystalline cellulose. In the near future, nanocrystalline cellulose, produced as a highvalue byprod uct from the biorefining process, could likely compete with carbon fiber for use in innovative high strength biocomposites. The holistic view of how to achieve both traditional and new highvalue materi als with enhanced performance properties from renewable resources is called Integrated Biomass Technologies. This concept promotes the use of sustainable, biobased, environmentally neutral (or even beneficial) technologies to meet global demands for building and materials end uses, chemicals, and energy. This concept provides a systematic approach for maximizing value, performance, resource sus tainability, and improving profitability in the agriculture and forest products industries. 6 JUNE 2008 June 2008:Forest Products 6/5/08 9:09 PM Page 7 By Jerrold E. Winandy, Alan W. Rudie, R. Sam Williams, and Theodore H. Wegner WoodWood andand BiomassBiomass The agricultural sector has made significant progress them are regarded as carbon neutral, releasing into in developing biobased fuels and chemicals. Today, the the atmosphere only the amount of CO originally 2 dominant feedstock for ethanol transportation fuel is fer sequestered by the plant to produce the biomass. -
Wood Waste As a Raw Material Lionel K
Volume 18 Article 3 1-1-1930 Wood Waste as a Raw Material Lionel K. Arnold Iowa State College Follow this and additional works at: https://lib.dr.iastate.edu/amesforester Part of the Forest Sciences Commons Recommended Citation Arnold, Lionel K. (1930) "Wood Waste as a Raw Material," Ames Forester: Vol. 18 , Article 3. Available at: https://lib.dr.iastate.edu/amesforester/vol18/iss1/3 This Article is brought to you for free and open access by the Journals at Iowa State University Digital Repository. It has been accepted for inclusion in Ames Forester by an authorized editor of Iowa State University Digital Repository. For more information, please contact [email protected]. THE AMES FORESTER 17 Wood Waste as a Raw Material Lionel K. Arnold, Engineering Experiment Station It is estimated that the annual sawdust pile of the world would be several times as large as the largest skyscraper of New 'York. The sawclust is only about one-fifth of the total waste from the lumber industry. It is estimated that 62 per cent of each tree cut for lumber is wasted. This includes the limbs, top, and stump as well as the waste at the mill. From the sawlogs alone the waste is approximately 49 per cent. Unbreakable dolls and dynamite are only two of the many products made fl-om wood flour which is made from sawdust and other wood wastes. In spite of the immense quantities of sawdust and other wood wastes produced in the United States, we are importing in the neighborhood of 12 million pounds of wood flour every year at a cost of about 90 thousand dollars.