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Environmental Durability Of Fiber Reinforced Plastic Bond To Concrete Subjected To Freeze Thaw Action
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Book Synopsis Environmental Durability of Fiber-reinforced Plastic Bond to Concrete Subjected to Freeze-thaw Action by : Pavel Dohnálek
Download or read book Environmental Durability of Fiber-reinforced Plastic Bond to Concrete Subjected to Freeze-thaw Action written by Pavel Dohnálek and published by . This book was released on 2006 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: (cont.) This is also supported by the results of testing of the adhesive tensile specimens that did not show decrease in strength only an increase in ultimate strain. The freeze-thaw cycling in water did not result in any deterioration of the specimens' strength, most specimens actually acquired higher strength, due to moist curing of the concrete during the freeze-thaw cycling.
Book Synopsis Durability of Fibre Reinforced Polymer (FRP) and FRP Bond Subjected to Freeze-thaw Cycles and Sustained Load by : Sylvio Siu Fang Tam
Download or read book Durability of Fibre Reinforced Polymer (FRP) and FRP Bond Subjected to Freeze-thaw Cycles and Sustained Load written by Sylvio Siu Fang Tam and published by . This book was released on 2007 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt: Existing infrastructure in North America has now reached an age when it requires extensive repairs and upgrades which can often be expensive. A quick and effective solution that can also be economical is the use of fibre reinforced polymer (FRP). Despite its promising short-term results, the long-term durability of FRP has not been investigated enough where designers can recommend the application with the same confidence as they have for traditional materials. Current research addresses this issue in detail. This report presents the durability test results of FRP laminates and FRP bonding characteristics. Specimens included 48 FRP coupons, 48 FRP-to-FRP single-lap-bonded specimens and 48 FRP-to-concrete prisms. These specimens were subjected to 300 freeze-thaw cycles and/or sustained load. After which, they were tested to failure for their post-exposure mechanical properties. In most cases, FRP and FRP bond were found to be durable, except bond stiffness suffered significant damages due to combined exposures.
Book Synopsis Advances in FRP Composites in Civil Engineering by : Lieping Ye
Download or read book Advances in FRP Composites in Civil Engineering written by Lieping Ye and published by Springer Science & Business Media. This book was released on 2012-02-01 with total page 956 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Advances in FRP Composites in Civil Engineering" contains the papers presented at the 5th International Conference on Fiber Reinforced Polymer (FRP) Composites in Civil Engineering in 2010, which is an official conference of the International Institute for FRP in Construction (IIFC). The book includes 7 keynote papers which are presented by top professors and engineers in the world and 203 papers covering a wide spectrum of topics. These important papers not only demonstrate the recent advances in the application of FRP composites in civil engineering, but also point to future research endeavors in this exciting area. Researchers and professionals in the field of civil engineering will find this book is exceedingly valuable. Prof. Lieping Ye and Dr. Peng Feng both work at the Department of Civil Engineering, Tsinghua University, China. Qingrui Yue is a Professor at China Metallurgical Group Corporation.
Book Synopsis Durability of Fiber Reinforced Polymer (FRP) Composites for Construction by :
Download or read book Durability of Fiber Reinforced Polymer (FRP) Composites for Construction written by and published by . This book was released on 1998 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rehabilitation of Concrete Structures with Fiber-Reinforced Polymer by : Riadh Al-Mahaidi
Download or read book Rehabilitation of Concrete Structures with Fiber-Reinforced Polymer written by Riadh Al-Mahaidi and published by Butterworth-Heinemann. This book was released on 2018-11-12 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rehabilitation of Concrete Structures with Fiber Reinforced Polymer is a complete guide to the use of FRP in flexural, shear and axial strengthening of concrete structures. Through worked design examples, the authors guide readers through the details of usage, including anchorage systems, different materials and methods of repairing concrete structures using these techniques. Topics include the usage of FRP in concrete structure repair, concrete structural deterioration and rehabilitation, methods of structural rehabilitation and strengthening, a review of the design basis for FRP systems, including strengthening limits, fire endurance, and environmental considerations. In addition, readers will find sections on the strengthening of members under flexural stress, including failure modes, design procedures, examples and anchorage detailing, and sections on shear and torsion stress, axial strengthening, the installation of FRP systems, and strengthening against extreme loads, such as earthquakes and fire, amongst other important topics. - Presents worked design examples covering flexural, shear, and axial strengthening - Includes complete coverage of FRP in Concrete Repair - Explores the most recent guidelines (ACI440.2, 2017; AS5100.8, 2017 and Concrete society technical report no. 55, 2012)
Book Synopsis Effect of Freeze-thaw Cycles on the Bond Durability Between Fibre Reinforced Polymer Plate Reinforcement and Concrete by :
Download or read book Effect of Freeze-thaw Cycles on the Bond Durability Between Fibre Reinforced Polymer Plate Reinforcement and Concrete written by and published by . This book was released on 2000 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deterioration of infra structure is one of the most pressing concerns facing today's engineering community. As a result, new rehabilitation techniques, such as external bonding of fibre reinforced polymer (FRP) plates and sheets, are being developed. To apply these rehabilitation methods in Canada, the durability of the rehabilitated structures in cold regions must be assessed. This paper examines the effects of freeze-thaw cycling on the bond between FRP and concrete. An experimental investigation was conducted using both single lap pull-off and bond beam specimens. Only uniaxail carbon FRP strips were considered. The specimens were exposed to up to 300 feeze-thaw cycles consisting of 16 h of tfreezing and 8 h of thawing in water bath. After exposure, the specimens were tested to failure. The development of strain along the bond length and the failure mode are presented for both types of specimens. Load deflection curves are presented for the beam specimens. The results indicate that the bond between carbon FRP strips and concrete is not significantly damaged by up to 300 freeze-thaw cycles.
Book Synopsis Corrosion Prevention and Protection by : Edward Ghali
Download or read book Corrosion Prevention and Protection written by Edward Ghali and published by John Wiley & Sons. This book was released on 2007-01-30 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion Prevention and Protection: Practical Solutions presents a functional approach to the various forms of corrosion, such as uniform corrosion, pitting corrosion, crevice corrosion, galvanic corrosion, stress corrosion, hydrogen-induced damage, sulphide stress cracking, erosion-corrosion, and corrosion fatigue in various industrial environments. The book is split into two parts. The first, consisting of five chapters: Introduction and Principles (Fundamentals) of Corrosion Corrosion Testing, Detection, Monitoring and Failure Analysis Regulations, Specifications and Safety Materials: Metals, Alloys, Steels and Plastics Corrosion Economics and Corrosion Management The second part of the book consists of two chapters which present: a discussion of corrosion reactions, media, active and active-passive corrosion behaviour and the various forms of corrosion, a collection of case histories and practical solutions which span a wide range of industrial problems in a variety of frequently encountered environments, including statues & monuments, corrosion problems in metallurgical and mineral processing plants, boilers, heat exchangers and cooling towers, aluminum and copper alloys, galvanized steel structures as well as hydrogeological environmental corrosion This text is relevant to researchers and practitioners, engineers and chemists, working in corrosion in industry, government laboratories and academia. It is also suitable as a course text for engineering students as well as libraries related to chemical and chemical engineering institutes and research departments.
Book Synopsis Environmental Durability Evaluation of Externally Bonded Composites by :
Download or read book Environmental Durability Evaluation of Externally Bonded Composites written by and published by . This book was released on 2004 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Durability of Fibre-reinforced Polymers (FRP) Used in Concrete Structures by : Sayed Mukhtar Homam
Download or read book Durability of Fibre-reinforced Polymers (FRP) Used in Concrete Structures written by Sayed Mukhtar Homam and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The research on the structural performance of Fibre Reinforced Polymers (FRP) has shown the these materials haw great potential for application in concrete structures. Not enough test data, however, are available to predict the long-term performance of the and improved structures. Degradation problems can wise when polymers are exposed to heat, light, weathering, high-energy radiation, chemicals, and microorganisms. The objective of this research is to study the durability of FRP used in concrete structures by exposing the material to simulated environmental conditions in the laboratory. The conditions that were studied in this research project are freeze-thaw and ultraviolet radiation. Four types of specimen were studied for the freeze-thaw. The specimens are: (1) Fibre Reinforced Plastic (FRP) coupons, (2) FRP to FRP single lap bonded panels, (3) FRP wrapped cylinders, and (4) FRP to concrete bonded prisms. Only the first two types of the were studied for the ultraviolet radiation. The results showed that the above exposures have minimal effect on the mechanical performance of Carbon- and Glass-FRP.
Book Synopsis Durability of Wet-bond Between Hybrid FRP Laminate and Cast-in-place Concrete by : Li Li
Download or read book Durability of Wet-bond Between Hybrid FRP Laminate and Cast-in-place Concrete written by Li Li and published by . This book was released on 2007 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Numerical Investigations on Bond Durability of CFRP Strengthened Concrete Members Subjected to Environmental Exposure by : Haider Al-Jelawy
Download or read book Experimental and Numerical Investigations on Bond Durability of CFRP Strengthened Concrete Members Subjected to Environmental Exposure written by Haider Al-Jelawy and published by . This book was released on 2013 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results of tensile tests on FRP coupons indicate that both epoxy and polyurethane FRP systems do not degrade significantly under environmental exposure. However, flexural tests on the FRP strengthened concrete beams indicate that bond between FRP and concrete shows significant degradation, especially for aqueous exposure. Moreover, a protective coating suppresses the measured degradation. Also, experimental load-displacement curves for control beams show excellent agreement with numerical load-displacement curves obtained using the proposed bond model. Finally, a bond-slip model is predicted for concrete leachate conditioned beams by matching load-displacement curves for those beams with numerical load-displacement curves.
Book Synopsis Fiber Reinforced Polymers by : Martin Masuelli
Download or read book Fiber Reinforced Polymers written by Martin Masuelli and published by BoD – Books on Demand. This book was released on 2013-01-23 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fiber Reinforced Polymers are by no means new to this world. It is only because of our fascination with petrochemical and non-petrochemical products that these wonderful materials exist. In fact, the polymers can be considered and used in the construction and construction repair. The petrochemical polymers are of low cost and are used more that natural materials. The Fiber Reinforced Polymers research is currently increasing and entails a quickly expanding field due to the vast range of both traditional and special applications in accordance to their characteristics and properties. Fiber Reinforced Polymers are related to the improvement of environmental parameters, consist of important areas of research demonstrating high potential and particularly great interest, as civil construction and concrete repair.
Book Synopsis Freeze-thaw Durability of Composite Materials by : José Pantaleon Gomez
Download or read book Freeze-thaw Durability of Composite Materials written by José Pantaleon Gomez and published by . This book was released on 1996 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Composite materials, produced from polymer resins and high strength fibers, have the potential to be widely used in construction because of their corrosion resistance and high strength-to-weight ratio, However, such environmental factors as extreme temperature fluctuation and water absorption adversely affect the material properties of composite materials produced from polymers. Cycles of freezing and thawing temperatures magnify the effects of water absorption. For use in highway structures, composite materials must be as durable as steel and concrete. Therefore, the behavior of composite materials subjected to cycles of freezing and thawing needs to be characterized. Two commercially available composite systems, both reinforced with fiberglass and produced by the pultrusion process, were studied. One system was produced with isophthalic polyester, the other with vinyl ester. Coupons were cut from plate stock and placed in a solution of water and 2% sodium chloride and subjected to cycles of freezing and thawing. Periodically, coupons were removed and tested in flexure to failure. Flexural strength values at various numbers of freeze-thaw cycles were compared to the strengths of virgin coupons. Prior to destructive testing, coupons were tested to determine the dynamic modulus of elasticity. Dynamic modulus values at various numbers of freeze-thaw cycles were compared to virgin values. Results indicate a significant loss of flexural strength (20% 30%), rigidity, and toughness after 300 cycles. Data from dynamic modulus measurements when compared to modulus of elasticity calculations taken from load-deflection data, may not be an appropriate measure of durability for composites.
Book Synopsis Fiber-reinforced-plastic Reinforcement for Concrete Structures by : Antonio Nanni
Download or read book Fiber-reinforced-plastic Reinforcement for Concrete Structures written by Antonio Nanni and published by . This book was released on 1993 with total page 1000 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Freeze-thaw and Sustained Load Durability of Near Surface Mounted FRP Strengthened Concrete by : Peter Andrew Mitchell
Download or read book Freeze-thaw and Sustained Load Durability of Near Surface Mounted FRP Strengthened Concrete written by Peter Andrew Mitchell and published by . This book was released on 2010 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, a modified method to strengthen reinforced concrete (RC) structures has emerged involving application of fibre reinforced polymers (FRPs) in the 'near surface' of a member. The near surface mounted (NSM) method entails placing a pre-cured FRP bar, rod, strip, or plate, along with an adhesive into a pre-cut groove or slot in the cover of a member. Advantages of the NSM technique over externally bonded (EB) systems include minimal surface preparation and installation time, the ability to anchor the FRP into an adjacent member, superior protection from mechanical and environmental damage, and superior bond properties. Although a number of laboratory studies, field applications, and experimental field projects have employed the NSM FRP strengthening technique, none of these have been performed in a climate where cold environments and freeze-thaw cycling could cause adverse effects. This thesis presents the results of an experimental program to investigate the flexural and bond performance and freeze-thaw durability of a specific NSM carbon/vinylester FRP tape strengthening system through a series of tests on strengthened slab strips and a series of pull-out bond tests. The effects of adhesive type (cementitious or epoxy) and exposure condition (room temperature, freeze-thaw, sustained load, or freeze-thaw under sustained load) are examined. The results indicate no discernable negative impacts on the performance of the grout strengthened members after exposure to freeze-thaw cycles and/or sustained load. The slab strips strengthened with epoxy adhesive displayed minor changes in ultimate load (less than three percent) after exposure to freeze-thaw cycles or a period of sustained load, while the combined effect of freeze-thaw cycles and sustained load produced an average reduction in ultimate load of eight percent. The epoxy adhesive strengthened pull-out bond tests experienced a 27% average drop in ultimate load after 150 freeze-thaw cycles. These results suggest that additional research on the combined effects of sustained load and freeze-thaw cycling are warranted, particularly for NSM strengthening applications using epoxy adhesives.
Book Synopsis Strengthening and Rehabilitation of Civil Infrastructures Using Fibre-Reinforced Polymer (FRP) Composites by : L C Hollaway
Download or read book Strengthening and Rehabilitation of Civil Infrastructures Using Fibre-Reinforced Polymer (FRP) Composites written by L C Hollaway and published by Elsevier. This book was released on 2008-07-18 with total page 415 pages. Available in PDF, EPUB and Kindle. Book excerpt: The repair of deteriorated, damaged and substandard civil infrastructures has become one of the most important issues for the civil engineer worldwide. This important book discusses the use of externally-bonded fibre-reinforced polymer (FRP) composites to strengthen, rehabilitate and retrofit civil engineering structures, covering such aspects as material behaviour, structural design and quality assurance.The first three chapters of the book review structurally-deficient civil engineering infrastructure, including concrete, metallic, masonry and timber structures. FRP composites used in rehabilitation and surface preparation of the component materials are also reviewed. The next four chapters deal with the design of FRP systems for the flexural and shear strengthening of reinforced concrete (RC) beams and the strengthening of RC columns. The following two chapters examine the strengthening of metallic and masonry structures with FRP composites. The last four chapters of the book are devoted to practical considerations in the flexural strengthening of beams with unstressed and prestressed FRP plates, durability of externally bonded FRP composite systems, quality assurance and control, maintenance, repair, and case studies.With its distinguished editors and international team of contributors, Strengthening and rehabilitation of civil infrastructures using fibre-reinforced polymer (FRP) composites is a valuable reference guide for engineers, scientists and technical personnel in civil and structural engineering working on the rehabilitation and strengthening of the civil infrastructure. - Reviews the use of fibre-reinforced polymer (FRP) composites in structurally damaged and sub-standard civil engineering structures - Examines the role and benefits of fibre-reinforced polymer (FRP) composites in different types of structures such as masonry and metallic strengthening - Covers practical considerations including material behaviour, structural design and quality assurance
Book Synopsis Durability of Carbon Fiber Reinforced Polymer (CFRP) Repair/strengthening Concrete Beams by : Jiangang Deng
Download or read book Durability of Carbon Fiber Reinforced Polymer (CFRP) Repair/strengthening Concrete Beams written by Jiangang Deng and published by ProQuest. This book was released on 2008 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon fiber-reinforced polymers (CFRP) have been widely used as externally epoxy-bonded reinforcement for repair and retrofit of existing concrete structures. As the use of CFRP in construction increases, it is essential to consider the long term behavior. In this study, concrete specimens with externally bonded CFRP composite systems were exposed to various accelerated ageing environments: different elevated temperature water immersion, varying relative humidity exposure, real-time solar exposure, pressurized hygrothermal exposure, and fatigue loading. Three-point loading test and direct tension test were used to evaluate the flexural and tensile strength of CFRP specimens. This research recommends that the durability strength reduction factor be defined as the ratio of the flexural strength of a test specimen after exposure for 60 days at 60C to the strength of a control specimen at the initiation of exposure. Test specimens, exposure environments, testing procedures, and field application environments are selected to assure uniform reporting, testing and application of durability strength reduction factors. Two exposure environments are recommended for design, wet and air. Water can diffuse through concrete and accumulate on the epoxy/concrete interface in a wet environment and is the default condition for design. An air environment precludes water accumulation but requires engineering design and validation to guarantee compliance. The resulting durability strength reduction factor may be used to (a) calculate the reduced strength for environmental exposure, (b) qualify a specific CFRP system, (c) compare durability reduction factors to those provided by system suppliers, and (d) confirm compliance with project specifications.
