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Field Performance Testing Of Improved Engineering Wood Fiber Surfaces For Accessible Playground Areas
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Book Synopsis Field Performance Testing of Improved Engineered Wood Fiber Surfaces for Accessible Playground Areas by : Theodore Laufenberg
Download or read book Field Performance Testing of Improved Engineered Wood Fiber Surfaces for Accessible Playground Areas written by Theodore Laufenberg and published by . This book was released on 2003 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some engineered wood fiber (EWF) surfaces on playgrounds are soft and uneven, which creates difficulties for those who use mobility aids, such as wheelchairs and walkers. The outdoor field testing reported in this study is part of an effort to stabilize EWF to improve accessibility. The concept is to mix a binder with the upper surface of EWF to create a stiff (firm) and scuff-resistant (stable) composite overlayer. Latex, silicone, and polyurethane binders were evaluated on small plots during a 6-month outdoor trial in Wisconsin. Tests were performed at regular intervals to?provide a quantitative measure of accessibility. After 6 months of exposure, all the surfaces passed the existing specifications for impact attenuation of playground surfaces. Exposure changed impact performance of all systems except the unsurfaced (without an additive) EWF. The latex and?polyurethane stabilizers consistently met accessibility requirements. One polyurethane formulation produced a hard brittle shell that became even harder with exposure and age, which might increase the injury rate for falls on that surface. The silicone system failed to maintain integrity adequately?during the rain/dry cycles of the test. Moisture measurements indicate that the bonded surfaces retard drying of the underlying EWF, which may have long-term implications for the rate of decay for these systems.
Book Synopsis Stabilized Engineered Wood Fiber for Accessible Trails by : Theodore Laufenberg
Download or read book Stabilized Engineered Wood Fiber for Accessible Trails written by Theodore Laufenberg and published by . This book was released on 2004 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Stabilized Engineered Wood Fiber for Accessible Playground Surfaces by : Theodore Laufenberg
Download or read book Stabilized Engineered Wood Fiber for Accessible Playground Surfaces written by Theodore Laufenberg and published by . This book was released on 2004 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Improving Engineered Wood Fiber Surfaces for Accessible Playgrounds by : Theodore Laufenberg
Download or read book Improving Engineered Wood Fiber Surfaces for Accessible Playgrounds written by Theodore Laufenberg and published by . This book was released on 2003 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Some engineered wood fiber surfaces are uneven, tend to shift, and have low density. The goal of our research was to develop a playground surface material that cushions impact and is accessible to people with disabilities. In the initial screening phase, we evaluated a variety of in situ surface treatments and mixtures of wood particles combined with various binders. Engineered wood fiber (EWF) was prepared from three species, red maple, ponderosa pine, and one-seed juniper, which have a wide range of densities and bonding properties. In the scale-up phase, we evaluated commercially available EWF and several promising binding systems from the screening phase trials. Seventeen test configurations were formed in plywood boxes, using different levels of EWF compaction, fiber moisture content, surface layer thickness, and types of binders. Binder systems that show promise for surface stabilization and satisfactory impact behavior are polyurethane, latex, and silicone. These binders were chosen on the basis of processing ease, flexibility (elongation to failure), cost, and safety in application and use. In this report, we identify the strengths and weaknesses of the surface treatments, review the viability of the systems and the testing concepts we have developed, and identify further research needs.
Book Synopsis Annual Report to the President and the Congress by : Architectural and Transportation Barriers Compliance Board
Download or read book Annual Report to the President and the Congress written by Architectural and Transportation Barriers Compliance Board and published by . This book was released on 2003 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Porous Pavements by : Bruce Ferguson
Download or read book Porous Pavements written by Bruce Ferguson and published by CRC Press. This book was released on 2005-02-18 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pavements are the most ubiquitous of all man-made structures, and they have an enormous impact on environmental quality. They are responsible for hydrocarbon pollutants, excess runoff, groundwater decline and the resulting local water shortages, temperature increases in the urban "heat island," and for the ability of trees to extend their roots in
Book Synopsis Monthly Catalog of United States Government Publications by :
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 2003 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register written by and published by . This book was released on 2000-10-18 with total page 1610 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Risk Management in Sport and Recreation by : John Otto Spengler
Download or read book Risk Management in Sport and Recreation written by John Otto Spengler and published by Human Kinetics. This book was released on 2006 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: Risk Management in Sport and Recreation is a comprehensive resource for those charged with the responsibility of providing for the safety of participants and spectators in a sport or recreation setting. It covers a range of safety issues, including lightning, heat illness, aquatics, playground safety, drug testing, and medical emergency action plans. Readers receive clear and detailed explanations of issues to consider before making decisions on risk management. Risk Management in Sport and Recreation is designed to provide a foundation for approaching key issues in safety and risk management. It shows readers how to evaluate and analyze various safety issues and apply the underlying concepts to a variety of situations. The following are unique features of the text: -A safety guidelines finder lists Web sites of accessible standards, guidelines, and recommendations from leading organizations. -Chapter objectives and pullout boxes of key points and key statistics stress the importance of the topic under discussion. -Threshold issues in each chapter highlight important factors to consider when making decisions on risk management. -Real-world applications at the end of each chapter present scenarios involving the potential for harm, and readers must make a decision on how to address the issues. -Examples of public service announcements, posters, and other publicly viewed safety information are presented. -An appendix offers examples of emergency action plans, checklists, and recommendations from organizations such as the National Lightning Safety Institute and university aquatic centers. -A companion Web site provides links to the Web sites used in the book, as well as updates to guidelines and links that may occur after the book is in print. The safety guidelines finder gives students and practitioners a single location from which they can easily access important safety information. Organized under land-based or water-based activities, each activity lists guidelines, recommendations, and standards along with the source for that information. Each entry includes Web sites where readers can find the full documents. The text also features sample guidelines and safety checklists from agencies and associations that demonstrate how organizations might plan for risk and communicate safety information. Readers also consider the types of postings and equipment they will need in order to communicate their risk management plans, and they are given real-life situations in which a risk management plan is needed and are prompted to consider why and how to create a plan for such situations. The resource will help students and professionals plan for and manage risk. Current and future employees of sport facilities, school athletic programs, parks and recreation programs, youth and aquatic centers, or resorts and golf courses will find that Risk Management in Sport and Recreation provides the tools to assist in making the right decisions to manage risk effectively.
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 2000 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Strengthening Forensic Science in the United States by : National Research Council
Download or read book Strengthening Forensic Science in the United States written by National Research Council and published by National Academies Press. This book was released on 2009-07-29 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: Scores of talented and dedicated people serve the forensic science community, performing vitally important work. However, they are often constrained by lack of adequate resources, sound policies, and national support. It is clear that change and advancements, both systematic and scientific, are needed in a number of forensic science disciplines to ensure the reliability of work, establish enforceable standards, and promote best practices with consistent application. Strengthening Forensic Science in the United States: A Path Forward provides a detailed plan for addressing these needs and suggests the creation of a new government entity, the National Institute of Forensic Science, to establish and enforce standards within the forensic science community. The benefits of improving and regulating the forensic science disciplines are clear: assisting law enforcement officials, enhancing homeland security, and reducing the risk of wrongful conviction and exoneration. Strengthening Forensic Science in the United States gives a full account of what is needed to advance the forensic science disciplines, including upgrading of systems and organizational structures, better training, widespread adoption of uniform and enforceable best practices, and mandatory certification and accreditation programs. While this book provides an essential call-to-action for congress and policy makers, it also serves as a vital tool for law enforcement agencies, criminal prosecutors and attorneys, and forensic science educators.
Book Synopsis Special Study by : Deborah K. Tinsworth
Download or read book Special Study written by Deborah K. Tinsworth and published by . This book was released on 2001 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Children's Play Areas and Equipment by : United States. Department of the Army
Download or read book Children's Play Areas and Equipment written by United States. Department of the Army and published by . This book was released on 1969 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Popular Mechanics written by and published by . This book was released on 2000-01 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: Popular Mechanics inspires, instructs and influences readers to help them master the modern world. Whether it’s practical DIY home-improvement tips, gadgets and digital technology, information on the newest cars or the latest breakthroughs in science -- PM is the ultimate guide to our high-tech lifestyle.
Book Synopsis Performance of Bio-based Building Materials by : Dennis Jones
Download or read book Performance of Bio-based Building Materials written by Dennis Jones and published by Woodhead Publishing. This book was released on 2017-07-07 with total page 652 pages. Available in PDF, EPUB and Kindle. Book excerpt: Performance of Bio-based Building Materials provides guidance on the use of bio-based building materials (BBBM) with respect to their performance. The book focuses on BBBM currently present on the European market. The state-of-the-art is presented regarding material properties, recommended uses, performance expectancies, testing methodology, and related standards. Chapters cover both 'old and traditional' BBBM since quite a few of them are experiencing a comeback on the market. Promising developments that could become commercial in the near future are presented as well. The book will be a valuable reference resource for those working in the bio-based materials research community, architects and agencies dealing with sustainable construction, and graduate students in civil engineering. - Takes a unique approach to bio-based materials and presents a broad overview of the topics on relevant areas necessary for application and promotion in construction - Contains a general description, notable properties related to performance, and applications - Presents standards that are structured according to performance types
Download or read book Backpacker written by and published by . This book was released on 2001-03 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: Backpacker brings the outdoors straight to the reader's doorstep, inspiring and enabling them to go more places and enjoy nature more often. The authority on active adventure, Backpacker is the world's first GPS-enabled magazine, and the only magazine whose editors personally test the hiking trails, camping gear, and survival tips they publish. Backpacker's Editors' Choice Awards, an industry honor recognizing design, feature and product innovation, has become the gold standard against which all other outdoor-industry awards are measured.
Book Synopsis Cellulose Nanocomposites by : American Chemical Society. Meeting
Download or read book Cellulose Nanocomposites written by American Chemical Society. Meeting and published by . This book was released on 2006 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction to cellulose nanocomposites; strategies for preparation of cellulose wiskers from microcrystalline cellulose as reinforcement in nanocomposites; self-assembly of cellulose nanocrystals: parabolic focal conic films; cellulose fibrils: isolation, characterization, and capability for technical applications; morphology of cellulose and its nanocomposites; useful insights into cellulose nanocomposites using raman spectroscopy; novel methods for interfacial modification of cellulose - reinforced composites; cellulose nanocrystals for thermoplastic reinforcement: effect of filler surface chemistry on composite properties; the structure and mechanical properties of cellulose nanocomposites prepared by twin screw extrusion; preparation and properties of biopolymer-based nanocomposites films using microcrystalline cellulose; nanocompusites based on cellulose microfibril; cellulose microfibers as reinforcing agents for structural materials; dispersion of soybean stock-based nanofiber in plastic matrix; polysulfone-cellulose nanocomposites; bacterial cellulose and its nanocomposites for biomedical applications.
