Strength Properties Of Wood Adhesives After Exposure To Fire

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Strength Properties of Wood Adhesives After Exposure to Fire

Author : Björn Källander
Publisher :
ISBN 13 : 9789178488834
Total Pages : 30 pages
Book Rating : 4.4/5 (888 download)

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Book Synopsis Strength Properties of Wood Adhesives After Exposure to Fire by : Björn Källander

Download or read book Strength Properties of Wood Adhesives After Exposure to Fire written by Björn Källander and published by . This book was released on 2001 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nordtest and SP Swedish National Testing and Research Institute (SP) have financed a study to draft a common Nordic test method to classify wood adhesives for structural purposes according to strength properties after fire exposure. The study has been planned and carried out in cooperation between SP and Norwegian Institute of Wood Technology (NTI) with participation of Otto Graf Institute in Germany (FMPA). Glulam beams produced with six different adhesives have been exposed to fire. Temperature distribution during the fire exposure test, weight loss and charring rate have been determined. Shear strength of glulines and wood have been determined and delamination tests have been carried out on samples exposed to fire and samples not exposed to fire. Short term shear strength and creep rupture tests at elevated temperature have been carried out on samples with wood adhesives used in the test. Preliminary calculations of temperature distributions during fire in wooden members protected against direct fire exposure by gypsum board have been made. The results of the study on beams not protected by gypsum indicate that a wood adhesive that has shown favourable results in a creep rupture test at elevated temperature (80 deg C) also will perform well during and after direct fire exposure. A static load test at elevated temperature can be used as an efficient and cheap method as an alternative to fire exposure tests of glued products for structural use. The results of the preliminary calculations on temperature distributions during fire exposure of gypsum protected smaller wood members indicate that under certain circumstances, the temperature can reach and stay at temperatures above 120 deg C for a longer period of time. An additional test at higher temperature could be needed for adhesives intended for such structures.

A Simplified Test for Adhesive Behavior in Wood Sections Exposed to Fire

Author : Erwin L. Schaffer
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis A Simplified Test for Adhesive Behavior in Wood Sections Exposed to Fire by : Erwin L. Schaffer

Download or read book A Simplified Test for Adhesive Behavior in Wood Sections Exposed to Fire written by Erwin L. Schaffer and published by . This book was released on 1968 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: A relatively simple test procedure was developed to evaluate the behavior of various adhesives near fire-exposed surfaces in laminated constructions. A number of sections cut from laminated blocks were exposed to fire on one surface. After this exposure, the sections were transversely cut, and the gluelines were examined for separation depth. In addition, the cool specimens were broken along the glue joints so as to be able to determine the residual bonded area. An equation incorporating both the separation depth and the residual bonded area at the joints was utilized to obtain a gbsdegradation indexgcs on which adhesive behavior near fire-exposed surfaces can be quantitatively based. This index was used to make a preliminary grouping of the behavior under fire of six types of adhesives in laminated sections of Douglas-fir and southern pine.

Adhesive Bonding

Author : Robert D. Adams
Publisher : Elsevier
ISBN 13 : 1845690753
Total Pages : 560 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Adhesive Bonding by : Robert D. Adams

Download or read book Adhesive Bonding written by Robert D. Adams and published by Elsevier. This book was released on 2005-03-08 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important collection reviews key research on adhesive behaviour and applications in sectors as diverse as construction and automotive engineering. The book is divided into three main parts: fundamentals, mechanical properties and applications. Part one focuses on the basic properties of adhesives, surface assessment and treatment. Part two concentrates on understanding how adhesives perform under stress and the factors affecting fatigue and failure. The final part of the book reviews industry specific applications in areas such as building and construction, transport and electrical engineering.With its distinguished editor and international team of contributors, Adhesive bonding is a standard reference for all those concerned with the industrial application of adhesives. Essential information for all those concerned with the industrial application of adhesives This important collection examines adhesives and adhesive bonding for load-bearing applications Arranged in a user-friendly format with three main sections: fundamentals, generic uses and industry specific applications

NEHRP Recommended Provisions for the Development of Seismic Regulations for New Buildings

Author : Building Seismic Safety Council (U.S.)
Publisher :
ISBN 13 :
Total Pages : 164 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis NEHRP Recommended Provisions for the Development of Seismic Regulations for New Buildings by : Building Seismic Safety Council (U.S.)

Download or read book NEHRP Recommended Provisions for the Development of Seismic Regulations for New Buildings written by Building Seismic Safety Council (U.S.) and published by . This book was released on 1985 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Tentative Provisions for the Development of Seismic Regulations for Buildings

Author : Applied Technology Council
Publisher :
ISBN 13 :
Total Pages : 556 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Tentative Provisions for the Development of Seismic Regulations for Buildings by : Applied Technology Council

Download or read book Tentative Provisions for the Development of Seismic Regulations for Buildings written by Applied Technology Council and published by . This book was released on 1978 with total page 556 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Adhesives Technology Handbook

Author : Sina Ebnesajjad
Publisher : William Andrew
ISBN 13 : 0323356028
Total Pages : 437 pages
Book Rating : 4.3/5 (233 download)

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Book Synopsis Adhesives Technology Handbook by : Sina Ebnesajjad

Download or read book Adhesives Technology Handbook written by Sina Ebnesajjad and published by William Andrew. This book was released on 2014-11-26 with total page 437 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering a wide range of industrial applications across sectors including medical applications, automotive/aerospace, packaging, electronics, and consumer goods, this book provides a complete guide to the selection of adhesives, methods of use, industrial applications, and the fundamentals of adhesion. Dr Ebnesajjad examines the selection of adhesives and adhesion methods and challenges for all major groups of substrate including plastics (thermosets and thermoplastics), elastomers, metals, ceramics and composite materials. His practical guidance covers joint design and durability, application methods, test methods and troubleshooting techniques. The science and technology of adhesion, and the principles of adhesive bonding are explained in a way that enhances the reader's understanding of the fundamentals that underpin the successful use and design of adhesives. The third edition has been updated throughout to include recent developments in the industry, with new sections covering technological advances such as nanotechnology, micro adhesion systems, and the replacement of toxic chromate technology. Provides practitioners of adhesion technology with a complete guide to bonding materials successfully Covers the whole range of commonly used substrates including plastics, metals, elastomers and ceramics, explaining basic principles and describing common materials and application techniques Introduces the range of commercially available adhesives and the selection process alongside the science and technology of adhesion

Mastic Construction Adhesives in Fire Exposure

Author : Bryan H. River
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Mastic Construction Adhesives in Fire Exposure by : Bryan H. River

Download or read book Mastic Construction Adhesives in Fire Exposure written by Bryan H. River and published by . This book was released on 1973 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Describes two basic methods for testing the heat resistance of mastic construction adhesives. Thirty diversified adhesives were classified as either heat resistant or nonheat resistant. Heat-resistant adhesives in wood-to-wood joints withstood temperatures exceeding 5500 F. and a load of 2 pounds per square inch. Nonheat-resistant adhesives failed at temperatues generally below 3000 F.

Evaluation, Maintenance and Upgrading of Wood Structures

Author : Alan D'Yarmett Freas
Publisher : ASCE Publications
ISBN 13 : 9780784475768
Total Pages : 444 pages
Book Rating : 4.4/5 (757 download)

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Book Synopsis Evaluation, Maintenance and Upgrading of Wood Structures by : Alan D'Yarmett Freas

Download or read book Evaluation, Maintenance and Upgrading of Wood Structures written by Alan D'Yarmett Freas and published by ASCE Publications. This book was released on 1982-01-01 with total page 444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prepared by the Subcommittee on Evaluation, Maintenance, and Upgrading of Timber Structures of the Committee on Wood of the Structural Division of ASCE. This report presents information on technical aspects of inspection, evaluation, reinforcement, repair, and rehabilitation of timber structures. Any structure, regardless of the material from which it is made, may be subject to a review of its ability to perform a specific function or functions. This report reviews factors that influence the serviceability of wood structures, including loadings, duration of loads, temperature, moisture and weathering. Effects of chemicals and fire, as well as insects, fungi, and other organisms that attack wood are also covered. Designing to avoid problems caused by these factors is discussed. Inspection techniques and equipment are described, along with guidelines on where to look and what to look for. A section of evaluation of wood structures includes criteria such as structural analysis, determination of loads, and estimating load carrying capacity.

Reliability Formulation for the Strength and Fire Endurance of Glued-laminated Beams

Author :
Publisher :
ISBN 13 :
Total Pages : 48 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Reliability Formulation for the Strength and Fire Endurance of Glued-laminated Beams by :

Download or read book Reliability Formulation for the Strength and Fire Endurance of Glued-laminated Beams written by and published by . This book was released on 1985 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: A model was developed for predicting the statistical distribution of glued-laminated beam strength and stiffness under normal temperature conditions using available long span modulus of elasticity data, end joint tension test data, and tensile strength data for laminating-grade lumber. The beam strength model predictions compared favorably with test data for glued-laminated beam strength data with 8 and 10 laminations; however, the model predicted strength values 30 percent higher for glued-laminated beam strength data with 4 laminations. Fire endurance and structural resistance were evaluated by artificially reducing the cross section. This reduction accounts for char depth as well as for reduced wood strength caused by the elevated temperature. Average time-to-failure predictions using the developed model compared well with those from conventional prediction methods.

PRO 8: 1st International RILEM Symposium on Timber Engineering

Author : Lars Boström
Publisher : RILEM Publications
ISBN 13 : 9782912143105
Total Pages : 872 pages
Book Rating : 4.1/5 (431 download)

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Book Synopsis PRO 8: 1st International RILEM Symposium on Timber Engineering by : Lars Boström

Download or read book PRO 8: 1st International RILEM Symposium on Timber Engineering written by Lars Boström and published by RILEM Publications. This book was released on 1999 with total page 872 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Evaluating Adhesives for Building Construction

Author : Robert H. Gillespie
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Evaluating Adhesives for Building Construction by : Robert H. Gillespie

Download or read book Evaluating Adhesives for Building Construction written by Robert H. Gillespie and published by . This book was released on 1972 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:

NEHRP (National Earthquake Hazards Reduction Program) Recommended Provisions for the Development of Seismic Regulations for New Buildings: Appendix (existing buildings)

Download NEHRP (National Earthquake Hazards Reduction Program) Recommended Provisions for the Development of Seismic Regulations for New Buildings: Appendix (existing buildings) PDF Online Free

Author : Building Seismic Safety Council (U.S.)
Publisher :
ISBN 13 :
Total Pages : 156 pages
Book Rating : 4.:/5 ( download)

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Book Synopsis NEHRP (National Earthquake Hazards Reduction Program) Recommended Provisions for the Development of Seismic Regulations for New Buildings: Appendix (existing buildings) by : Building Seismic Safety Council (U.S.)

Download or read book NEHRP (National Earthquake Hazards Reduction Program) Recommended Provisions for the Development of Seismic Regulations for New Buildings: Appendix (existing buildings) written by Building Seismic Safety Council (U.S.) and published by . This book was released on 1985 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Bio-based Wood Adhesives

Author : Zhongqi He
Publisher : CRC Press
ISBN 13 : 1315352257
Total Pages : 558 pages
Book Rating : 4.3/5 (153 download)

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Book Synopsis Bio-based Wood Adhesives by : Zhongqi He

Download or read book Bio-based Wood Adhesives written by Zhongqi He and published by CRC Press. This book was released on 2017-05-25 with total page 558 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adhesive bonding plays an increasing role in the forest product industry and is a key factor for efficiently utilizing timber and other lignocellulosic resources. As synthetic wood adhesives are mostly derived from depleting petrochemical resources and have caused increasing environmental concern, natural product and byproduct-derived adhesives have attracted much attention in the last decades. Although adhesives made from plant and animal sources have been in existence since ancient times, increased knowledge of their chemistry and improved technical formulation of their preparation are still needed to promote their broader industrial applications. The primary goals of this book are to (1) synthesize the fundamental knowledge and latest research on bio-based adhesives from a remarkable range of natural products and byproducts, (2) identify need areas and provide directions of future bio-based adhesive research, and (3) help integrating research findings in practical adhesive application for maximal benefits. This book covers information on a variety of natural products and byproducts and the latest research on formulation, testing and improvement of the relevant adhesives in fifteen chapters written by an international group of accomplished contributors. This book will serve as a valuable reference source for university faculty, graduate students, research scientists, agricultural and wood engineers, international organization advocators and government agency regulators who work and deal with enhanced utilization of agricultural and forest products and byproducts.

Reliability Analysis of Fire-exposed Light-frame Wood Floor Assemblies

Author : Frank E. Woeste
Publisher :
ISBN 13 :
Total Pages : 868 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Reliability Analysis of Fire-exposed Light-frame Wood Floor Assemblies by : Frank E. Woeste

Download or read book Reliability Analysis of Fire-exposed Light-frame Wood Floor Assemblies written by Frank E. Woeste and published by . This book was released on 1980 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Structural Fire Design

Author : Erwin L. Schaffer
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (319 download)

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Book Synopsis Structural Fire Design by : Erwin L. Schaffer

Download or read book Structural Fire Design written by Erwin L. Schaffer and published by . This book was released on 1984 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Analytical procedures to predict the fire endurance of structural wood members have been developed worldwide. This research is reviewed for capability to predict the results of tests in North America and what considerations are necessary to apply the information here. Critical research needs suggested include: (1) Investigation of load levels used in reported tests, and parameters in analyses, for application to North American practice; (2) the effect of lumber grade on wood property response at elevated temperature; and (3) further effort in reliability-based design procedures so that the safety of fire-exposed members and assemblies may be determined.

Handbook of Wood Chemistry and Wood Composites

Author : Roger M. Rowell
Publisher : CRC Press
ISBN 13 : 0203492439
Total Pages : 505 pages
Book Rating : 4.2/5 (34 download)

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Book Synopsis Handbook of Wood Chemistry and Wood Composites by : Roger M. Rowell

Download or read book Handbook of Wood Chemistry and Wood Composites written by Roger M. Rowell and published by CRC Press. This book was released on 2005-02-18 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt: The degradable nature of high-performance, wood-based materials is an attractive advantage when considering environmental factors such as sustainability, recycling, and energy/resource conservation. The Handbook of Wood Chemistry and Wood Composites provides an excellent guide to the latest concepts and technologies in wood chemistry and bio-based composites. The book analyzes the chemical composition and physical properties of wood cellulose and its response to natural processes of degradation. It describes safe and effective chemical modifications to strengthen wood against biological, chemical, and mechanical degradation without using toxic, leachable, or corrosive chemicals. Expert researchers provide insightful analyses of the types of chemical modifications applied to polymer cell walls in wood, emphasizing the mechanisms of reaction involved and resulting changes in performance properties. These include modifications that increase water repellency, fire retardancy, and resistance to ultraviolet light, heat, moisture, mold, and other biological organisms. The text also explores modifications that increase mechanical strength, such as lumen fill, monomer polymer penetration, and plasticization. The Handbook of Wood Chemistry and Wood Composites concludes with the latest applications, such as adhesives, geotextiles, and sorbents, and future trends in the use of wood-based composites in terms of sustainable agriculture, biodegradability and recycling, and economics. Incorporating over 30 years of teaching experience, the esteemed editor of this handbook is well-attuned to educational demands as well as industry standards and research trends.

Properties of Elastomer-Based Construction Adhesive at Service Temperatures in Wood Buildings

Author : R. J. Hoyle
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (228 download)

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Book Synopsis Properties of Elastomer-Based Construction Adhesive at Service Temperatures in Wood Buildings by : R. J. Hoyle

Download or read book Properties of Elastomer-Based Construction Adhesive at Service Temperatures in Wood Buildings written by R. J. Hoyle and published by . This book was released on 1980 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Strength, elastic properties, load duration and creep were measured following exposure to temperatures and stresses expected during service life. Temperature-stress exposure reduced strength properties. High testing temperature reduced strength and low temperature raised strength. Shear elastic modulus was quite stable in the range 10 to 160deg F ( -12 to 71deg C) but increased markedly at lower temperatures. Long time loading caused a larger strength reduction for the adhesive than we expect to observe for wood. This load duration effect was larger at elevated temperature. Adhesive creep was similar to wood creep but greater at 70deg F (21deg C), increasing more at 160deg F (71deg C).