![]() |
Welcome to Loot.co.za!
Sign in / Register |Wishlists & Gift Vouchers |Help | Advanced search
|
Your cart is empty |
||
|
Books > Professional & Technical > Industrial chemistry & manufacturing technologies > Timber & wood processing
This volume presents a history of heavy timber construction (HTC) in the United States, chronicling nearly two centuries of building history, from inception to a detailed evaluation of one of the best surviving examples of the type, with an emphasis on fire resistance. The book does not limit itself in scope to serving only as a common history. Rather, it provides critical analysis of HTC in terms of construction methods, design, technical specifications, and historical performance under fire conditions. As such, this book provides readers with a truly comprehensive understanding and exploration of heavy timber construction in the United States and its performance under fire conditions.
Roelof A. A. Oldeman Tropical hardwoods are one of the essential cogs in the complex socio-economic machinery keeping alive an ever-increasing humanity with steadily rising claims upon a finite-resource environment. Their position in this context at first sight seems to be analogous to that of other commodities, such as rubber, metals, mineral oil, tropical fruits and many more. Looking closer, however, tropical hardwoods occupy a special place. Their vast majority, unlike tropical crops, still comes forth from natural forests being exploited by man. This exploitation straight from the natural resource is something they have in common with oil and metals, but the fact that they grow in living systems places them closer to crops. Natural forest ecosystems are not renewable. Timber producing trees, however, can be made into a renewable resource on condition that ways and means are found to cultivate them as a crop. be understood as a socio-economic The tropical hardwood situation can best chain, with the resource base at one end, the consumer community at the other and everything that has to do with the market in the middle. Now, at the resource side, the economics of tropical hardwood extraction barely got out of the primeval ways of wood-gathering by hand and by axe, which were still predominant in the nineteen-forties. There, the offer of natural products was so immense and so near to hand that no care had to be taken of the resource.
"Applications of Wet-end Paper Chemistry" bridges the gap between the theory and practice of wet-end paper chemistry by explaining how particular chemicals are chosen and put to use in real situations. A number of international experts in the field present recent contributions on the optimum use of chemicals in papermaking. Major inroads have taken place since the first edition of this title was published in 1995. This new edition of "Applications of Wet-end Paper Chemistry" will reflect the changing type and use of chemicals used in papermaking in the 21st century. Chemists and chemical engineers across the paper and pulp making industry, as well as in research and academic institutes will find this book of enormous practical value.
This book contains papers presented at the 1st International Conference on Timber Structures, which was held in collaboration with the Technical Centre of Wood Industry in Belgium. It explores the latest developments in wood products and their application as structural components. The focus of the included works is to draw attention to new research and real applications from both researchers and practitioners, and to present new and innovative ideas in this significant field. Rapid advances have recently been made in the development and processing of innovative ecologically friendly wood products. A variation of new structural shapes can now be fabricated and used to construct buildings and bridges that have minimal impact on the environment. Wood is particularly appealing since it is renewable and has no carbon footprint when it is harvested in a sustainable way. Timber structures are ecologically sound and comparatively low cost. The material lends itself to ground-breaking designs and new types of composites offer reliable, robust and safe materials. The content of this book comprises a range of topics: Material properties of wood; Durability aspects, service life modelling; Fire safety of timber structures; Protection against decay; Non-destructive inspection and monitoring; Glued, laminated structures, Xlam and CLT; Timber joints and connections; Vernacular wood and heritage timber structures; Timber housing and eco-architecture; Timber bridges; Large span timber roof structures; Shell structures in timber; Mixed, composite and hybrid structures; Computational analysis and experimental methods; Structural engineering and design; Seismic behaviour of timber structures; Protection of timber; Repaired timber structures; Rapidly assembled and transferable timber structures; Guidelines, codes and regulations; Structural failures; Art and craftsmanship.
The purpose of this monograph is to characterize and describe the quality of machined wood surfaces, whereas particular attention is given to the utility and to aesthetical values in product design. The approach employed by the authors involves an introductory overview and is then organized in three parts: first, the book deals with factors influencing surface stability, the second part describes the color and gloss properties of wood surfaces with many practical applications, and the third part covers roughness properties of surfaces related to machining. This is a highly informative and carefully presented book, providing valuable insight for both research experts and practitioners with an interest in machined wood surfaces.
Although the title of this book is Paper Chemistry, it should be considered as a text about the chemistry of the formation of paper from aqueous suspensions of fibre and other additives, rather than as a book about the chemistry of the raw material itself. It is the subject of what papermakers call wet-end chemistry. There are many other excellent texts on the chemistry of cellulose and apart from one chapter on the accessibility of cellulose, the subject is not addressed here. Neither does the book deal with the chemistry of pulp preparation (from wood, from other plant sources or from recycled fibres), for there are also many excellent texts on this subject. The first edition of this book was a great success and soon became established as one of the Bibles of the industry. Its achievement then was to collect the considerable advances in understanding which had been made in the chemistry of papermaking in previous years, and provide, for the first time, a sound physico chemical basis of the subject. This new edition has been thoroughly updated with much new material added. The formation of paper is a continuous filtration process in which cellulosic fibres are formed into a network which is then pressed and dried. The important chemistry involved in this process is firstly the retention of col loidal material during filtration and secondly the modification of fibre and sheet properties so as to widen the scope for the use of paper and board products."
'Machine Woodworking' provides students with all the basic information needed to reach NVQ level II in wood machining. It covers calculations, timber science, and all the relevant machines, and is completed by five simple workshop projects which can be used to practice and test the necessary skills. The use of each machine is explained, with ample diagrams and photographs where appropriate, and each section is rounded off with the relevant regulations and additional multiple-choice questions to test understanding.
Everyone involved in paper making knows Asten as a world class
manufacturer of paper machine clothing. Perhaps less well known is
that Asten started in this industry more than 120 years ago. Since
then the company has taken advantage of modern manufacturing
techniques to produce innovative products needed by the growing
paper making industry. That is why Asten commissioned Dr. Sabit
Adanur to write this book - to continue spreading sophisticated
papermaking knowledge throughout the global paper industry. This
book discusses how the latest technological innovations help
produce quality paper products. It also covers the use of TQM and
computers in the papermaking process as basic paper structure and
properties.
This work discusses the latest innovations in the manufacture of wood adhesives, and shows how to test their composition. Methods of varying parameters to obtain particular effects are explained, and background summaries of each class of adhesives are provided.
"Wood Preservation" is a standard reference book on the subject. This new edition covers the most important developments over the last 15 years, prompted by new research, economic and technical changes and the increasing awareness of potential hazards to health and the environment. The book is divided into 5 chapters: preservation technology; wood degradation; preservation systems; preservation chemicals and practical conservation, with separate appendices dealing with the selection of a preservation system, wood borers, and wood destroying fungi. The book is suitable for use as an introduction to wood preservation technology but will also be a resource for professionals who are either already involved in the wood preservation industry or who work with preserved wood.
The definitive industry reference on the paper and paperboard packaging sector. Now in a fully revised and updated second edition, this book discusses all the main types of packaging based on paper and paperboard. It considers the raw materials, the manufacture of paper and paperboard, and the basic properties and features on which packaging made from these materials depends for its appearance and performance. The manufacture of twelve types of paper- and paperboard-based packaging is described, together with their end-use applications and the packaging machinery involved. The importance of pack design is stressed, as well as how these materials offer packaging designers opportunities for imaginative and innovative design solutions. Environmental factors, including resource sustainability, societal and waste management issues are addressed in a dedicated chapter. The book is directed at readers based in companies which manufacture packaging grades of paper and paperboard, companies involved in the design, printing and production of packaging, and companies which manufacture inks, coatings, adhesives and packaging machinery. It will be essential reading for students of packaging technology and technologists working in food manufacturing who are users of paper and paperboard packaging products. Praise for the First Edition 'This book is a valuable addition to the library of any forward-looking company by providing in-depth coverage of all aspects of packaging which involve the most ecologically acceptable material, namely paper and paperboard.'--International Journal of Dairy Technology '...a welcome contribution to a field where coverage was previously limited to subject-specific books... or to single chapters in textbooks on broader aspects of packaging technology.'--Packaging Technology and Science
The book discusses combining timber and glass, two eco materials, with a view to developing an optimal contemporary energy-efficient house with an attractive design. Furthermore, the book connects an architectural design approach with structural research to show the possibilities of stabilizing the building with an increased size of the glazing. Research results where the glazing is considered as a load-bearing structural element are therefore presented in a manner leading to the development of an optimal model of the timber-glass house, considering both the structural and energy related aspects. The presented research work can be useful to designers and future experts in their planning of optimal energy-efficient timber buildings. The study is based on using timber and glass, which were previously neglected as construction materials. With suitable technological development and appropriate use, they are nowadays becoming essential construction materials as far as energy efficiency is concerned. However, their combined use is extremely complicated, from both the constructional point of view as well as from that of energy efficiency and sets multiple traps for designers. A good knowledge of their advantages and drawbacks is thus vitally important, which is shown in the present monograph. Energy-efficient timber-glass houses was selected by the Slovenian National Research Agency as an extraordinary scientific achievement in the field of technical sciences/civil engineering for the year 2013.
The traditional pulp and paper producers are facing new
competitors in tropical and subtropical regions who use the latest
and largest installed technologies, and also have wood and labor
cost advantages. Due to the increasing global competition, the
forest products prices will continue to decrease. To remain viable,
the traditional producers need to increase revenue by producing
bioenergy and biomaterials in addition to wood, pulp, and paper
products. In this so-called Integrated Products Biorefinery, all
product lines are highly integrated and energy efficient.
Integrated Products Biorefineries present the forest products
industry with a unique opportunity to increase revenues and improve
environmental sustainability. Integrated Products Biorefinery
technologies will allow industry to manufacture high-value
chemicals, fuels, and/or electric power while continuing to produce
traditional wood, pulp, and paper products. The industry already
controls much of the raw material and infrastructure necessary to
create Integrated Products Biorefineries, and Agenda 2020
partnerships are speeding development of the key enabling
technologies. Once fully developed and commercialized, these
technologies will produce enormous energy and environmental
benefits for the industry and the nation. "Biorefinery in the Pulp
and Paper Industry" presents the biorefining concept, the
opportunities for the pulp and paper industry, and describes and
discusses emerging biorefinery process options. This book also
highlights the environmental impact and the complex and ambiguous
decision-making challenges that mills will face when considering
implementing the biorefinery. - Provides up-to-date and authoritative information, citing pertinent research, on this timely and important topic - Covers in great depth the biorefining concept, opportunities for the pulp and paper industry, and emerging biorefinery process options - Highlights the environmental impact and the complex and ambiguous decision-making challenges that mills will face when considering implementing the biorefinery
This book covers the technology of the recovery of secondary fibre for its use in paper and board manufacture. The editor, who has had substantial practical experience of designing and commissioning paper recycling plants all over the world, leads a team of experts who discuss subjects including sourcing, characterisation, mechanical handling and preparation and de-inking.
The new edition of this textbook, while largely retaining the proven chapter structure of the previous editions, combines the quantitative, mathematical analysis of the mechanisms of wood processing with practical recommendations and solutions. It presents new theoretical and experimental approaches and offers a clear and systematic overview of the theory of wood cutting, thermal loading in wood-cutting tools, optimum choice of operational parameters, dynamic behavior of tool and workpiece, stability problems in wood machining, energy requirements, the wear process of tools and a unique analysis of surface roughness. In general, diagrams are provided to help quickly estimate various process parameters. As a modern and powerful tool, the process optimization procedure is also included, and amply demonstrated in worked-out examples. In this edition, new and updated material has been added in many sections: roughly a third of the book has been rewritten and a quarter of the figures are new. In addition, many figures have been revised for clarity. The authors are confident that this revised and expanded edition will continue to meet the needs of all those working in the field of wood machining.
Solving the pulp and paper industries' environmental problems is essential to maintaining the forest industry and accommodating the changing economic needs of forest communities. This book explores the construction of new mills--operating on new technology that does not produce pollutants--which are vital to the pulp and paper industry.
This monograph presents state-of-the-art knowledge in wood manufacturing design with a special focus on the elaboration of functional relationships. The authors transfer and apply the method of functional relationships to challenges in wood manufacturing, and the book contains many worked examples which help the reader to better understand the presented method. The topical spectrum includes machining processes, energy consumption, surface quality, hardness and durability properties as well as aesthetical properties. The target audience primarily comprises research experts and practitioners in wood manufacturing, but the book may also be beneficial for graduate students alike.
Much research has been done recently, and more is now in progress, to increase the effectiveness under tropical conditions of methods which have been developed in Europe for preserving timber. This book attempts to bring together the results of some of these studies. I have not attempted to cover the tropical zones of Central and South America as this would have extended the book beyond its limits. But I am grateful to the authors who have contributed chapters dealing with the different aspects and solutions of the problems of the tropical areas of the Old World. The International Research Group for Wood Preservation (The I.R.G.) at its annual meetings in different countries has provided a valuable forum for cooperation in this developing field. Anyone concerned with the subject would be well advised to study the publications issued by this group. Their office is at Drottning Kristinas vag 47C S - 11428 Stockholm, Sweden. Although timber is a renewable resource there is every reason why it should not be wasted through premature decay or the ravages of termites etc., when effective measures for its preservation are available and, if correctly applied, can greatly reduce the cost of maintaining timber structures.
Biermann's Handbook of Pulp and Paper: Paper and Board Making, Third Edition provides a thorough introduction to paper and board making, providing paper technologists recent information. The book emphasizes principles and concepts behind papermaking, detailing both the physical and chemical processes. It has been updated, revised and extended. Several new chapters have been added. Papermaking chemistry has found an adequate scope covering this important area by basics and practical application. Scientific and technical advances in refining, including the latest developments have been presented. The process of stock preparation describes the unit processes. An exhaustive overview of Chemical additives in Pulp and Paper Industry is included. Paper and pulp processing and additive chemicals are an integral part of the total papermaking process from pulp slurry, through sheet formation, to effluent disposal. Water circuits with loop designs and circuit closure are presented. The chapter on paper and board manufacture covers the different sections in the paper machine and also fabrics, rolls and roll covers, and describes the different types of machines producing the various paper and board grades. Coating is dealt with in a separate chapter covering color formulation and preparation and also coating application. Paper finishing gives an insight into what happens at roll slitting and handling. The chapter on environmental impact includes waste water treatment and handling, air emissions, utilization and solid residue generation and mitigation . The major paper and board grades and their properties, are described. Biotechnological methods for paper processing are also presented. This handbook is essential reading for Applied Chemists, Foresters, Chemical Engineers, Wood Scientists, and Pulp and Paper technologist/ Engineers, and anyone else interested or involved in the pulp and paper industry.
This book provides an overview of eco-friendly resins and their composite materials covering their synthesis, sources, structures and properties for different industrial applications to support the ongoing research and development in eco-friendly and renewable commercial products. It provides comparative discussions on the properties of eco-friendly resins with other polymer composites. It is a useful reference on bio-based eco-friendly polymer resins, wood-based composites, natural fibers and biomass materials for the polymer scientists, engineers and material scientists.
Pulp and Paper Industry: Emerging Waste Water Treatment Technologies is the first book which comprehensively reviews this topic. Over the past decade, pulp and paper companies have continued to focus on minimizing fresh water use and effluent discharges as part of their move towards sustainable operating practices. Three stages-basic conservation, water reuse and water recycling-provide a systematic approach to water resource management. Implementing these stages requires increased financial investment and better utilization of water resources. The ultimate goal for pulp and paper companies is to have effluent-free factories with no negative environmental impact. The traditional water treatment technologies that are used in paper mills are not able to remove recalcitrant contaminants. Therefore, advanced water treatment technologies are being included in industrial wastewater treatment chains aiming to either improve water biodegradability or its final quality. This book discusses various measures being adopted by the pulp and paper industry to reduce water consumption and treatment techniques to treat wastewater to recover it for reuse. The book also examines the emerging technologies for treatment of effluents and presents examples of full-scale installations.
Throughout the world 10 million tons of wood are used every year for paper-making, cellulose preparations, tobacco filters, cloth and dietary supplements. Wood is mainly composed of polysaccharides and lignin which are hydrophilic and hydrophobic respectively. This book describes the academic approaches to native bonds between lignin and the carbohhydrates in wood and other plants. The roles of lignin-carbohydrates complexes are discussed for practical use and wood processing. The authors describe the close relationship between lignin-carbohydrate complexes and biobleaching of kraft pulp, and the residual lignin in kraft pulp and their contribution to benzylated wood foaming. In addition they introduce the artificial lignin-carbohydrate bond formation and an enzymic degradation of lignin-carbohydrate bonds.
Other volumes in the latest edition of Pulp and Paper: Chemistry and Chemical Technology, 3rd Ed. Edited by James P. Casey Volume 1 Contents: Cellulose and Hemicellulose (G.D. McGinnis and F. Shaftzadeh). Lignin (W.G. Glasser). Pulpwood (W.J. Bublitz). Pulping (J.N. McGovern, W.F. Daniell, et al.). Bleaching (V. Loras). Appendix. Index. 1980 Volume 3 Contents: Dry Strength Resins (W.F. Reynolds). Dry Strength Resins (R.B. Wasser). Natural Products for Wet-End Addition (B.T. Hofreiter). Filling and Loading (E. Bohmer). Internal Sizing (J.J. Keavney). Internal Sizing (R.J. Kulick). Retention Chemistry (K.W. Britt). Retention Chemistry (J. E. Unbehend). Wet Strength (K.W. Britt). Dyeing (H.A. Lips). Surface Sizing (M.L. Cushing). Properties of Paper (C.E. Brandon). 1980 Volume 4 Contents: Pigment Coating (C.L. Casey). Printing (M.H. Bruno). Reprography (M, A. Nielsen). Laminating (C.U. Turner). Corrugating (A.J. DiDominias). Corrugating (G.H. Klein). Paper Reinforcement by Polymer Addition (J.F. Waterhouse). Paper Laminates (J.L. Robertson). Aqueous and Solvent Coatings (L.J. Carlson). Extrusion and Hot Melt Coatings (K. Palenik). 1981
This proceedings volume presents new scientific works of the research workers and experts from the field of Wood Science & Fire. It looks into the properties of various tree species across the continents affecting the fire-technical properties of wood and wood-based materials, its modifications, fire-retardant methods and other technological processes that have an impact on wood ignition and burning. The results of these findings have a direct impact on Building Construction and Design describing the fire safety of wooden buildings, mainly large and multi-story ones. The results of these experiments and findings may be applied, or are directly implemented into Fire Science, Hazard Control, Building Safety which makes the application of wood and wood materials in buildings possible, while maintaining strict fire regulations. One part of the contributions focuses on the symbiosis of the material and the fire-fighting technologies. Wood burning has its own specific features, therefore, the fire protection technologies need to be updated regularly. It also includes the issue of the intervention of fire-fighting and rescue teams in the fires of wooden buildings. Presentations deal with the issue of forest fires influenced by the climate changes, relief, fuel models based on the type and the age of the forest stand. |
You may like...
New Approaches to Data Analytics and…
P. Karthikeyan, Polinpapilinho F. Katina, …
Hardcover
R6,685
Discovery Miles 66 850
Gold Stars My First Picture Thesaurus
Sue Graves, Emily Stead
Paperback
AI Knowledge Transfer from the…
Jose Guadix Martin, Milica Lilic, …
Hardcover
R1,570
Discovery Miles 15 700
Machine Learning and Artificial…
Tawseef Ayoub Shaikh, Saqib Hakak, …
Hardcover
R4,918
Discovery Miles 49 180
|