A Case of Quang Tri Province, North Central Region
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Wood Research Manufacture of Medium Density Fiberboard (Mdf) Panels from Agribased Lignocellulosic Biomass
WOOD RESEARCH 62 (4): 2017 615-624 MANUFACTURE OF MEDIUM DENSITY FIBERBOARD (MDF) PANELS FROM AGRIBASED LIGNOCELLULOSIC BIOMASS Mehmet Akgül Necmettin Erbakan University, Seydisehirahmet Cengiz Faculty of Engineering Department of Materials and Metallurgical Engineering Konya, Turkey Birol Uner Suleyman Demirel University, Faculty of Forestry Department of Forest Products Engineering Isparta Turkey Osman Çamlibel Kirikkale University, Kirikkale Vocational School, Department of Materials and Materials Processing Technology Yahsihan/Kirikkale, Turkey Ümit Ayata Atatürk Üniversity, Oltu Vocational School, Department of Forestry and Forest Products Oltu/Erzurum, Turkey (Received January 2016) ABSTRACTS Lignocellulosics fibers and commercially-manufactured-chip (Pinus sylvestris L., Fagus orientalis and Quercus robur L.) with 11% moisture conten twere used for the experiment. The mixingratios of lignocellulosics fibers was 20% which is from okra and tobaccos talks, hazelnut and walnuts hell, and pinecone for each mixture in preformed panel and commercially- manufactured-chip was 100 % for the control sample. A commercial ureaformaldehyde (UF) adhesive was used as a binder. The physical and mechanical properties such as density, thickness swelling (TS), bending strength (BS), modulus elasticity (MOE), internalbond (IB), screw holding ability (SHA) perpendicular to the plane of panel, Janka hardness perpendicular to the plane of panel properties of MDF were measured.The results indicated that all the panels met the general purpose-use requirements of TS-EN. Thus, our results suggest that biomass from different sources can be an alternative raw material for MDF manufacturing process. KEYWORDS: Lignocellulosic biomass, MDF, physical and mechanical properties. 615 WOOD RESEARCH INTRODUCTION The demand in forest products industry is increasing with population and new product development. -
Glulam Sizes and Shapes Can Help Desigggners Meet Their Most Demanding Architectural and Structural Requirements Using Numerous Innovative Design Examples
WoodWorks Webinar “The Wood Products Council” is a Registered Provider with The Decem ber 11, 2013 AmericanInstituteofArchitectsContinuingEducationSystems(AIA/CES). Credit(s) earned on completion of this program will be reported to Glued Laminated Timber – An AIA/CES for AIA members. Certificates of Completion for both AIA Innovative and Versatile members and non-AIA members are available upon request. This p rog ra m is r egiste r ed wi th AIA/CES foocotr continu in gpoessoag professional Engineered Wood Composite education. As such, it does not include content that may be deemed or construed to be an approval or endorsement by the AIA of any Product material of construction or any method or manner of handling, using, distributing, or dealing in any material or product. Tom Williamson, P.E. Timber Engineering LLC QQp,,uestions related to specific materials, methods, and services will FASCE, FSEI be addressed at the conclusion of this presentation. Retired Vice President, APA FEtiVPAITCFormer Executive VP, AITC Learning Objectives 1. To illustrate how the flexibility of glulam sizes and shapes can help desigggners meet their most demanding architectural and structural requirements using numerous innovative design examples. Copyright Materials 2. To familiarize designers with how to properly select and specify glulam incorporating relevant industry standards and codes. This presentation is protected by US and 3. To provide design professionals with an overview of key design International Copyright laws. Reproduction, considerations that must be considered to ensure both the structural distribution, display and use of the presentation performance and long-term durability of glulam structures. without written permission of the speaker is 4. -
Second Lower Secondary Education for the Most Disadvantaged Areas Project: Thua Thien Hue Province Involuntary Resettlement
Classification: PUBLIC Involuntary Resettlement Due Diligence Report Report October 2020 VIE: Second Lower Secondary Education for the Most Disadvantaged Areas Project (LSEMDAP2) – Thua Thien Hue Province Prepared by the Ministry of Education and Training for the Socialist Republic of Vietnam and the Asian Development Bank. This information is being disclosed to the public in accordance with ADB’s Access to Information Policy. Classification: PUBLIC CURRENCY EQUIVALENTS (as of 31 August 2020) Currency unit – dong (VND) VND1.00 = $0.0000432 $1.00 = VND 23,166 ABBREVIATIONS ADB – Asian Development Bank CPMU – Central Project Management Unit EM – Ethnic Minorities EMSB – Ethnic Minority Semi Boarding LSEMDAP2 – Second Lower Secondary Education for the Most Disadvantaged Project LSS – Lower Secondary School LURP – Land Use Right Paper MOET – Ministry of Education and Training RP – Resettlement Plan WEIGHTS AND MEASURES m – meter m2 – square meter This involuntary resettlement due diligence report is a document of the borrower. The views expressed herein do not necessarily represent those of ADB's Board of Directors, Management, or staff, and may be preliminary in nature. In preparing any country program or strategy, financing any project, or by making any designation of or reference to a particular territory or geographic area in this document, the Asian Development Bank does not intend to make any judgments as to the legal or other status of any territory or area. This information is being disclosed to the public in accordance with ADB’s Access to Information Policy. Classification: PUBLIC VIE: Second Lower Secondary Education for the Most Disadvantaged Areas Project (LSEMDAP2) THUA THIEN HUE PROVINCE SUBPROJECT Nguyen Huu Dat Primary School And Lower Secondary School (batch 2) 1 This information is being disclosed to the public in accordance with ADB’s Access to Information Policy. -
Wood-Based Composite Materials Panel Products, Glued-Laminated Timber, Structural Composite Lumber, and Wood–Nonwood Composite Materials Nicole M
CHAPTER 11 Wood-Based Composite Materials Panel Products, Glued-Laminated Timber, Structural Composite Lumber, and Wood–Nonwood Composite Materials Nicole M. Stark, Research Chemical Engineer Zhiyong Cai, Supervisory Research Materials Engineer Charles Carll, Research Forest Products Technologist The term composite is being used in this chapter to describe Contents any wood material adhesively bonded together. Wood-based Scope 11–2 composites encompass a range of products, from fiberboard Conventional Wood-Based Composite Panels 11–2 to laminated beams. Wood-based composites are used for a number of nonstructural and structural applications in prod- Elements 11–2 uct lines ranging from panels for interior covering purposes Adhesives 11–3 to panels for exterior uses and in furniture and support struc- Additives 11–5 tures in buildings (Fig. 11–1). Maloney (1986) proposed Plywood 11–5 a classification system to logically categorize the array of wood-based composites. The classification in Table 11-1 Oriented Strandboard 11–7 reflects the latest product developments. Particleboard 11–10 The basic element for wood-based composites is the fiber, Fiberboard 11–12 with larger particles composed of many fibers. Elements Speciality Composite Materials 11–15 used in the production of wood-based composites can be Performance and Standards 11–15 made in a variety of sizes and shapes. Typical elements in- Glulam Timber 11–17 clude fibers, particles, flakes, veneers, laminates, or lumber. Figure 11–2 shows the variation and relative size of wood Advantages 11–17 elements. Element size and geometry largely dictate the Types of Glulam Combinations 11–17 product manufactured and product performance. -
11718400 06.Pdf
Chapter 8 Present Situation and Development Plans of Major Sea Ports 8.1 Major sea ports 8.1.1 Hai Phong Port (1) Outline Hai Phong Port is located on the right bank of Cam River and 20 nautical miles (37km) from buoy zero. The port was initially opened by the French in 1879. Hai Phong Port is a nodal point of inter-modal transportation consisting of road (Highway No. 5), inland waterway (corridors 1 & 2) and railway transport. Cargo throughput of Hai Phong Port has been increasing rapidly and reached 7.6 million tons in 2000 (export: 1.2, import: 3.6, domestic: 2.8), which is the highest cargo throughput among the ports in the Northern region. As to port facilities, Hai Phong Port has 17 berths (6 berths for container) with total length of 1,700m (930m for container) and maximum depth of -8.5m (for container). Besides, roadsteads (anchorage area) are located at Bach Dang (3), Hon Gai (9) and Lan Ha (3) for lighterage operation. Tidal range is 3.9m. (2) Current Problems of Hai Phong Port - The depth of the access channel is shallow (current depth: -4.5m) due to alluvium deposit. The vessel over 15,000DWT must be lightened at the anchorage area (roadstead) before berthing. Some 50 vessels (total handling cargo: 0.6 million tons) conducted the lighterage operation in 2001. This increases the handling charges and other expenses. - The maintenance dredging at a published depth in front of berths is insufficient due to lack of fund for maintenance, although mid-way channel is managed and maintained by Vietnam Marine Safety Bureau. -
Wood-Based Panel Plant Locations and Timber Availability in Selected U.S
United States Department of Agriculture Wood-Based Panel Plant Forest Service Locations and Timber Forest Products Laboratory Availability in Selected General Technical Report U.S. States FPL–GTR–103 Tim McKeever Henry Spelter ★ ★ ★ ★ ★ ★ ★ ★★ ★ ★ ★ ★ ★ ★ ★ ★★ ★ ★ ★★ ★★ ★ ★ ★★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ ★ Abstract Contents This report lists wood-based panel industry plant locations, Page production capacities, timber inventories, and wood costs for 24 U.S. states. Industry sectors covered include medium- Introduction................................................................1 density fiberboard, particleboard, softwood plywood, and oriented strandboard. Maps of major forest producing states show plant locations and the underlying density of timber Methods ....................................................................1 stocking by county. The study relates physical measures of timber availability to market measures of timber scarcity Results and Discussion.................................................2 and draws inferences about the potential of selected states to increase timber output at their present rate of forest productivity. Summary of Timber Availability and Costs .....................4 Keywords: Oriented strandboard, plywood, particleboard, medium-density fiberboard, capacity References..................................................................5 Appendix—Panel Plant Capacity and Timber Inventory by State ...................................................5 February 1998 McKeever, Tim; Spelter, Henry. -
Timber Products Output
TIMBER PRODUCTS OUTPUT (TPO): FOREST INVENTORY, TIMBER HARVEST, MILL AND LOGGING RESIDUE- ESSENTIAL FEEDSTOCK INFORMATION NEEDED TO CHARACTERIZE THE NARA SUPPLY CHAIN Authors ORGANIZATION University of Montana Bureau of Erik Berg Business and Economic Research University of Montana Bureau of Todd Morgan Business and Economic Research University of Montana Bureau of Eric Simmons Business and Economic Research COMPLETED 2016 TIMBER PRODUCTS OUTPUT (TPO): FOREST INVENTORY, TIMBER HARVEST, MILL AND LOGGING RESIDUE- ESSENTIAL FEEDSTOCK INFORMATION NEEDED TO CHARACTERIZE THE NARA SUPPLY CHAIN | FINAL REPORT 1 TABLE OF CONTENTS LIST OF FIGURES ..................................................................... 3 LIST OF TABLES....................................................................... 3 LIST OF ACRONYMS ................................................................ 3 EXECUTIVE SUMMARY ............................................................. 4 INTRODUCTION ...................................................................... 5 TASK 1: TIMBER HARVEST AND INVENTORY VOLUMES IN THE NARA FOUR-STATE AREA ....................................... 6 TASK 2: PRODUCTION AND USES OF MILL RESIDUES IN THE PACIFIC NORTHWEST ............................................ 9 TASK 3: CHARACTERIZING LOGGING RESIDUE VOLUMES AND BIOMASS IN THE PACIFIC NORTHWEST .................. 11 NARA OUTPUTS .................................................................... 22 NARA OUTCOMES ................................................................. 26 -
Wood Products Taxonomy
THEN NOW Wood Products Taxonomy WOOD Composites Solid Wood Engineered Panels Lumber Softwood Hardwood Composites Glued Treated Lumber Lumber (ELC) Wood/ Wood LVL Boards Finger joined CCA treated Hardwood Non-wood Based Wood/ Particleboard OSL Dimension Edge glued Fire retardant Cement MDF Timber Glulam Plywood MSR Engineered Wood Products OSB I-Beams Roof trusses “A New Taxonomy of Wood Products” 1996 David Cohen, Simon Ellis, Robert Kozak and Bill Wilson Canadian Forest Service FRDA II Working Paper 96.05, Victoria, BC, 56pp Commercial introduction for major wood products Laminated Strand Lumber Parallel Strand Lumber CCA-treated Lumber Wood I-Beam Lumber Laminated Veneer Lumber Light Frame Trusses Glue Laminated Lumber MSR Lumber 1890 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 Plywood Particleboard Waferboard Medium Density Fiberboard Panels Oriented Strand Board Wood Products • Primary – most (but not all) are structural products used in construction of residential and non-residential buildings • Secondary – non-structural products used in the finishing and furnishing of these buildings • Tertiary – support services including equipment manufacture, software development, education, marketing Wood Products Taxonomy WOOD Composites Solid Wood Engineered Panels Lumber Softwood Hardwood Composites Glued Treated Lumber Lumber (ELC) Wood/ Wood LVL Boards Finger joined CCA treated Hardwood Non-wood Based Wood/ Particleboard OSL Dimension Edge glued Fire retardant Cement MDF Timber Glulam Plywood MSR Engineered Wood Products OSB I-Beams Roof trusses Boards • 1” thick material, width – increments of 2” • finished, non-structural • markets are: export, industrial, home center • NA production likely to increase Boards BC Wood Specialties Dimension Lumber • 2x4, 2x6, 2x8 construction lumber • majority of lumber produced in North America • NA production grown 1.4% p.a. -
Wood-Based Composite Materials—Panel Products, Glued Laminated
CHAPTER 11 Wood-Based Composite Materials Panel Products, Glued Laminated Timber, Structural Composite Lumber, and Wood–Nonwood Composites Nicole M. Stark, Research Chemical Engineer Zhiyong Cai, Supervisory Research Materials Engineer Because wood properties vary among species, between Contents trees of the same species, and between pieces from the Conventional Wood-Based Composite Panels 11–2 same tree, solid wood cannot match reconstituted wood Wood Elements 11–3 in the range of properties that can be controlled. Wood Adhesives 11–3 with localized defects (such as knots) can often be utilized effectively in wood-based composites. When wood with Additives 11–6 defects is reduced to wood elements, the influence of these Plywood 11–6 characteristics in the manufactured product is reduced. Oriented Strandboard 11–10 To reinforce sustainable harvesting efforts, wood derived Particleboard 11–11 from small-diameter timber, forest residues, or exotic and invasive species may also be used in wood-based Fiberboard 11–13 composites. Specialty Composite Materials 11–16 Wood-based composite materials can be made up of various Performance and Standards 11–17 wood elements, including fibers, particles, flakes, veneers, Glued Laminated Timber 11–18 or laminates. Properties of such materials can be changed Advantages 11–18 by combining, reorganizing, or stratifying these elements. Types of Glulam Combinations 11–19 When raw material selection is paired with properly selected processing variables, the end result can surpass nature’s best Standards and Specifications 11–19 effort. Manufacture 11–20 The basic element for composite wood products is the fiber, Structural Composite Lumber and Timber with larger particles composed of many fibers (Fig. -
Architectural Woodwork Standards, 2Nd Edition
Architectural Woodwork Standards SHEET PRODUCTS 4S E C T I O N SECTION 4 Sheet Products table of contents INTRODUCTORY INFORMATION Species ...........................................................................................76 Reconstituted Veneers ...................................................................76 Introduction ...........................................................................................73 Speciality Sheet Products .....................................................................77 Plywood ................................................................................................73 Panel Adhesive .....................................................................................77 Types of Panel ......................................................................................73 Fire Retardance ....................................................................................77 Industrial Grade Particleboard ........................................................73 Photodegradation ..................................................................................77 Moisture Resistant Particleboard ...................................................73 Oxidation ...............................................................................................77 Fire Retardant Particleboard ..........................................................73 Types of Veneer Cuts ............................................................................77 Medium Density Fiberboard (MDF) ................................................73 -
1 Fibre Box Handbook Glossary Adhesive
Fibre Box Handbook Glossary A Adhesive: Substance capable of adhering one surface to another. For fiberboard boxes, the substance is used to hold plies of solid fiberboard together, to hold linerboard to the tips of flutes of corrugated medium, or to hold overlapping flaps together to form the joint or to close a box. Anilox System: Inking system used in flexographic presses. B Bale: A shaped unit, usually containing compressible articles or materials, enclosed in a fiberboard container not conforming to the carriers’ rules for a box, or enclosed in other wrapping, and bound by strapping, rope or wire under tension. Banded Unit: A package or palletized load that has a band or bands (usually plastic) applied to it. Bar Code: An identification symbol. Alpha or alpha-numeric information is encoded in a sequence of high-contrast, rectangular bars and blank spaces. The relative widths of these bars and spaces and their sequence differentiate the individual characters that make up the encoded information. Bar codes are “read” by electronic scanners. Basis Weight (of Containerboard): Weight of linerboard or corrugating medium expressed in terms of pounds per 1,000 square feet (msf). Bending: In the expression "proper bending qualities," the ability of containerboard or combined board to be folded along score lines without rupture of the surface fibers to the point of seriously weakening the structure. Blank or Box Blank: A flat sheet of corrugated or solid fiberboard that has been cut, slotted and scored so that, when folded along the score lines and joined, it will take the form of a box. -
Assessment of Soil Liquefaction Potential Based on SPT Values at Some Ground Profiles in the North Central Coast of Vietnam
Nu et al. Iraqi Journal of Science, 2021, Vol. 62, No. 7, pp: 2222-2238 DOI: 10.24996/ijs.2021.62.7.12 ISSN: 0067-2904 Assessment of Soil Liquefaction Potential Based on SPT Values at Some Ground Profiles in the North Central Coast of Vietnam Nguyen Thi Nu*, Nguyen Thanh Duong, Bui Truong Son Department of Engineering Geology, Hanoi University of Mining and Geology, Viet Nam Received: 52/2/2020 Accepted: 23/7/2020 Abstract The North Central Coast of Vietnam has a wide distribution of loose sand which is often exposed on the surface. The thickness changes from a few meters to over ten meters. This sand with the loose state can be sensitive to the dynamic loads, such as earthquakes, traffic load, or machine foundations. It can be liquefied under these loadings, which might destroy the ground and buildings. The Standard Penetration Test (SPT) is widely used in engineering practice and its values can be useful for the assessment of soil liquefaction potential. Thus, this article presents some ground profiles in some sites in the North Central Coast of Vietnam and determines the liquefaction potential of sand based on SPT and using three parameters, including the Factor of Safety against Liquefaction (FSLIQ), Liquefaction Potential Index (LPI), and Liquefaction Severity Number (LSN). The research results show that the FSLIQ, LPI, and LSN values depend on the depth of sand samples and the SPT values. In this study, the sand distributed from 2.0 to 18.0m with (N1)60cs value of less than 20 has high liquefaction potential with FSLIQ<1, LPI is often higher than 0.73, and LSN is often higher than 10.