Investigation Of The Resistance Of Several New Metallic Reinforcing Bars To Chloride Induced Corrosion In Concrete

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Investigation of the Resistance of Several New Metallic Reinforcing Bars to Chloride-induced Corrosion in Concrete

Author : Gerardo G. Clemeña
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Investigation of the Resistance of Several New Metallic Reinforcing Bars to Chloride-induced Corrosion in Concrete by : Gerardo G. Clemeña

Download or read book Investigation of the Resistance of Several New Metallic Reinforcing Bars to Chloride-induced Corrosion in Concrete written by Gerardo G. Clemeña and published by . This book was released on 2003 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Virginia Department of Transportation recently initiated a search for metallic reinforcing bars that are not only more durable and corrosion resistant than the epoxy-coated bars currently used, but also economical. In the last few years, several new bars have shown promise; one is still in the developmental stage. These bars are (1) stainless steel-clad carbon steel bars, (2) bars made of an MMFX-2 "microcomposite" steel, (3) bars made of a new "lean" duplex stainless steel called 2101 LDX, and (4) a carbon steel bar coated with a 2-mil layer of arc-sprayed zinc and then epoxy. These bars were embedded in concrete blocks, which were then subjected to severe weekly cycles of ponding with a saturated salt solution and drying. For comparison, two solid stainless steel (304 and 316LN) bars and a carbon steel bar (ASTM A 615) were also included. The times-to-corrosion of these bars were estimated through almost weekly monitoring of the macrocell current, open-circuit potential, and polarization resistance for up to 3 years. From a chloride concentration-vs.-time profile established for the test blocks, the amount of chloride ions each bar was able to tolerate was estimated and compared. Based on such information, an analysis of the long-term costs associated with the use of these bars in a bridge deck in Virginia was also conducted. This interim report was prepared to provide bridge engineers with this timely information. The information should be valuable in making a rational selection of the most cost-effective metallic reinforcing bars that will satisfy the specified design life for concrete bridge components that will be exposed to different degrees of salting.

Structural Concrete, Volume 3

Author : fib Fédération internationale du béton
Publisher : fib Fédération internationale du béton
ISBN 13 : 2883940932
Total Pages : 391 pages
Book Rating : 4.8/5 (839 download)

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Book Synopsis Structural Concrete, Volume 3 by : fib Fédération internationale du béton

Download or read book Structural Concrete, Volume 3 written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2010 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition of the Structural Concrete Textbook is an extensive revision that reflects advances in knowledge and technology over the past decade. It was prepared in the intermediate period from the CEP-FIP Model Code 1990 (MC90) tofib Model Code 2010 (MC2010), and as such incorporates a significant amount of information that has been already finalized for MC2010, while keeping some material from MC90 that was not yet modified considerably. The objective of the Textbook is to give detailed information on a wide range of concrete engineering from selection of appropriate structural system and also materials, through design and execution and finally behaviour in use. The revised fib Structural Concrete Textbook covers the following main topics: phases of design process, conceptual design, short and long term properties of conventional concrete (including creep, shrinkage, fatigue and temperature influences), special types of concretes (such as self compacting concrete, architectural concrete, fibre reinforced concrete, high and ultra high performance concrete), properties of reinforcing and prestressing materials, bond, tension stiffening, moment-curvature, confining effect, dowel action, aggregate interlock; structural analysis (with or without time dependent effects), definition of limit states, control of cracking and deformations, design for moment, shear or torsion, buckling, fatigue, anchorages, splices, detailing; design for durability (including service life design aspects, deterioration mechanisms, modelling of deterioration mechanisms, environmental influences, influences of design and execution on durability); fire design (including changes in material and structural properties, spalling, degree of deterioration), member design (linear members and slabs with reinforcement layout, deep beams); management, assessment, maintenance, repair (including, conservation strategies, risk management, types of interventions) as well as aspects of execution (quality assurance), formwork and curing. The updated Textbook provides the basics of material and structural behaviour and the fundamental knowledge needed for the design, assessment or retrofitting of concrete structures. It will be essential reading material for graduate students in the field of structural concrete, and also assist designers and consultants in understanding the background to the rules they apply in their practice. Furthermore, it should prove particularly valuable to users of the new editions of Eurocode 2 for concrete buildings, bridges and container structures, which are based only partly on MC90 and partly on more recent knowledge which was not included in the 1999 edition of the Textbook.

Corrosion of Steel in Concrete

Author : John P. Broomfield
Publisher : CRC Press
ISBN 13 : 1482265494
Total Pages : 294 pages
Book Rating : 4.4/5 (822 download)

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Book Synopsis Corrosion of Steel in Concrete by : John P. Broomfield

Download or read book Corrosion of Steel in Concrete written by John P. Broomfield and published by CRC Press. This book was released on 2003-07-09 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion of Steel in Concrete provides information on corrosion of steel in atmospherically exposed concrete structures and serves as a guide for those designing, constructing and maintaining buildings, bridges and all reinforced concrete structures.This new edition incorporates the new European standards as well as USA and other international sta

Corrosion of Steel in Concrete Structures

Author : Amir Poursaee
Publisher : Elsevier
ISBN 13 : 0128218401
Total Pages : 398 pages
Book Rating : 4.1/5 (282 download)

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Book Synopsis Corrosion of Steel in Concrete Structures by : Amir Poursaee

Download or read book Corrosion of Steel in Concrete Structures written by Amir Poursaee and published by Elsevier. This book was released on 2022-11-15 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion of Steel in Concrete Structures, Second Edition covers the corrosion of steel reinforced concrete, along with a variety of new topics and future trends. Sections discuss the theoretical concepts of corrosion of steel in concrete structures, analyze the variety of reinforcing materials and concrete, including stainless steel and galvanized steel, cover measurements and evaluations, such as electrochemical techniques and acoustic emission, review protection and maintenance methods, and analyze modeling. Topics covered include the steel/concrete interface, the influence of steel microstructure on its corrosion in concrete, data collection and analysis on chloride-induced corrosion, corrosion detection devices, and new advances. Presents comprehensive coverage on the corrosion of steel bars in concrete, investigating the range of reinforcing materials and types of concrete Introduces the latest measuring methods, data collection and advanced modeling techniques Covers a range of new and emerging topics, such as the concept of chloride threshold value, concrete permeability and chloride diffusion, the role of steel microstructure, and innovations in corrosion detection devices

Corrosion of Reinforcement in Concrete

Author : M Raupach
Publisher : Woodhead Publishing
ISBN 13 : 1845692284
Total Pages : 337 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Corrosion of Reinforcement in Concrete by : M Raupach

Download or read book Corrosion of Reinforcement in Concrete written by M Raupach and published by Woodhead Publishing. This book was released on 2014-01-23 with total page 337 pages. Available in PDF, EPUB and Kindle. Book excerpt: Given the widespread use of reinforced concrete in infrastructure, understanding the corrosion of this material is of major importance. As a result there has been a wealth of research into catalysts, inhibitors and effective means of monitoring the rate of corrosion. Corrosion of reinforcement in concrete: mechanisms, monitoring, inhibitors and rehabilitation techniques summarises some of the most significant research and its implications.The book begins by reviewing findings from various experiments designed to test the corrosion rate of metals induced by a range of factors. Later chapters discuss techniques for monitoring and testing for corrosion. The book concludes by assessing important methods of prevention, including corrosion inhibitors, protective coatings and electrochemical methods for protection, together with rehabilitation procedures for susceptible structures.Filled with practical examples and written by a distinguished team of international contributors, Corrosion of reinforcement in concrete: mechanisms, monitoring, inhibitors and rehabilitation techniques is an essential reference for civil engineers using reinforced concrete. Summarises research into catalysts, inhibitors and effective means of monitoring the rate of corrosion Concludes by assessing important methods of prevention

Corrosion Evaluation of Epoxy-coated, Metallic-clad and Solid Metallic Reinforcing Bars in Concrete

Author : David B. McDonald
Publisher :
ISBN 13 :
Total Pages : 148 pages
Book Rating : 4.3/5 (555 download)

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Book Synopsis Corrosion Evaluation of Epoxy-coated, Metallic-clad and Solid Metallic Reinforcing Bars in Concrete by : David B. McDonald

Download or read book Corrosion Evaluation of Epoxy-coated, Metallic-clad and Solid Metallic Reinforcing Bars in Concrete written by David B. McDonald and published by . This book was released on 1998 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes the work conducted from 1993 to 1998 to develop cost-effective "new breeds" of organic, inorganic, ceramic and metallic coatings, as well as metallic alloys that can be utilized on or as reinforcement for embedment in portland cement concrete. As part of the study, 12 different bar types were tested in concrete: black bars, 3 bendable and 3 nonbendable epoxies, Type 304 and Type 316 stainless steel, copper-clad, galvanized and spray metallic-clad reinforcing. Measurements of macrocell voltages, half-cell potentials, electrochemical impedance spectroscopy, linear polarization and mat-to-mat resistances were used in conjunction with visual observations to determine the effectiveness of each system.

Testing of Selected Metallic Reinforcing Bars for Extending the Service Life of Future Concrete Bridges

Author : Gerardo G. Clemeña
Publisher :
ISBN 13 :
Total Pages : 8 pages
Book Rating : 4.:/5 (513 download)

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Book Synopsis Testing of Selected Metallic Reinforcing Bars for Extending the Service Life of Future Concrete Bridges by : Gerardo G. Clemeña

Download or read book Testing of Selected Metallic Reinforcing Bars for Extending the Service Life of Future Concrete Bridges written by Gerardo G. Clemeña and published by . This book was released on 2002 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes the major conclusions drawn from its companion reports, which described investigations conducted using a stainless steel-clad bar, selected stainless steel bars (304, 316LN, and duplex 2205), and a carbon steel bar in concrete and in simulated concrete pore solutions (with various concentrations of chloride and pH) to assess the comparative corrosion resistance of the clad bar. The most important conclusion is that stainless steel cladding serves as an excellent protection for the carbon steel core. The clad bars and the solid stainless steel bars tolerated the same concentration of chloride ions without corroding, a level that was at least 15 times more than the corrosion threshold for carbon steel bars. Simple cost comparisons demonstrated that the clad bar is also a cost-effective reinforcement for extending the service life of future concrete bridges. Based on its excellent corrosion resistance and reasonable price, the study recommends that the clad bars be used in the construction of new concrete bridges in Virginia as long as the mechanical and physical characteristics of the bars are at least equivalent to those specified by the American Society for Testing and Materials in ASTM A 615.

Chloride Corrosion of steel in concrete

Author : D. E. Tonini
Publisher : ASTM International
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4./5 ( download)

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Book Synopsis Chloride Corrosion of steel in concrete by : D. E. Tonini

Download or read book Chloride Corrosion of steel in concrete written by D. E. Tonini and published by ASTM International. This book was released on 1977 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Corrosion of Metals in Association with Concrete

Author : John E. Slater
Publisher : ASTM International
ISBN 13 : 9780803102101
Total Pages : 100 pages
Book Rating : 4.1/5 (21 download)

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Book Synopsis Corrosion of Metals in Association with Concrete by : John E. Slater

Download or read book Corrosion of Metals in Association with Concrete written by John E. Slater and published by ASTM International. This book was released on 1983 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Corrosion of Reinforcing Steel in Concrete

Author : D. E. Tonini
Publisher : ASTM International
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4./5 ( download)

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Book Synopsis Corrosion of Reinforcing Steel in Concrete by : D. E. Tonini

Download or read book Corrosion of Reinforcing Steel in Concrete written by D. E. Tonini and published by ASTM International. This book was released on 1980 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Testing of Selected Metallic Reinforcing Bars for Extending the Service Life of Future Concrete Bridges

Author : Gerardo G. Clemeña
Publisher :
ISBN 13 :
Total Pages : 23 pages
Book Rating : 4.:/5 (513 download)

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Book Synopsis Testing of Selected Metallic Reinforcing Bars for Extending the Service Life of Future Concrete Bridges by : Gerardo G. Clemeña

Download or read book Testing of Selected Metallic Reinforcing Bars for Extending the Service Life of Future Concrete Bridges written by Gerardo G. Clemeña and published by . This book was released on 2002 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt: To meet the challenge of a design life of 100 years for major concrete bridges, economical and corrosion-resistant reinforcing bars will be needed. The preliminary results for stainless steel-clad bars in a recent investigation funded by the Federal Highway Administration suggested that stainless steel-clad bars could quality. To verify these results, this investigation compared the behavior of clad bars, three solid stainless steel (316LN, 304, and 2205) bars, and the traditional carbon steel bars in test concrete blocks exposed to weekly cycles of ponding with a saturated salt solution and drying. Regular measurements of electrochemical parameters such as macrocell current, corrosion rate, and open-circuit potential throughout the first 700 days of exposure indicated that the clad bars and the three solid stainless steel bars have virtually the same excellent resistance to corrosion. Whereas the carbon steel bars started to corrode after only 90 days of exposure, the other bars did not evidence any discernible corrosion activity, even after 700 days. A comparison of the estimated chloride concentrations at 90 and 700 days indicated that the clad bars and the stainless steel bars could tolerate at least 15 times more corrosive chloride ions than could the carbon steel bars.

Corrosion of Steel in Concrete

Author : Luca Bertolini
Publisher : John Wiley & Sons
ISBN 13 : 3527651713
Total Pages : 389 pages
Book Rating : 4.5/5 (276 download)

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Book Synopsis Corrosion of Steel in Concrete by : Luca Bertolini

Download or read book Corrosion of Steel in Concrete written by Luca Bertolini and published by John Wiley & Sons. This book was released on 2013-02-26 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Steel-reinforced concrete is used ubiquitously as a building material due to its unique combination of the high compressive strength of concrete and the high tensile strength of steel. Therefore, reinforced concrete is an ideal composite material that is used for a wide range of applications in structural engineering such as buildings, bridges, tunnels, harbor quays, foundations, tanks and pipes. To ensure durability of these structures, however, measures must be taken to prevent, diagnose and, if necessary, repair damage to the material especially due to corrosion of the steel reinforcement. The book examines the different aspects of corrosion of steel in concrete, starting from basic and essential mechanisms of the phenomenon, moving up to practical consequences for designers, contractors and owners both for new and existing reinforced and prestressed concrete structures. It covers general aspects of corrosion and protection of reinforcement, forms of attack in the presence of carbonation and chlorides, problems of hydrogen embrittlement as well as techniques of diagnosis, monitoring and repair. This second edition updates the contents with recent findings on the different topics considered and bibliographic references, with particular attention to recent European standards. This book is a self-contained treatment for civil and construction engineers, material scientists, advanced students and architects concerned with the design and maintenance of reinforced concrete structures. Readers will benefit from the knowledge, tools, and methods needed to understand corrosion in reinforced concrete and how to prevent it or keep it within acceptable limits.

Corrosion and Protection of Reinforced Concrete

Author : Brian Cherry
Publisher : CRC Press
ISBN 13 : 1000353028
Total Pages : 392 pages
Book Rating : 4.0/5 (3 download)

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Book Synopsis Corrosion and Protection of Reinforced Concrete by : Brian Cherry

Download or read book Corrosion and Protection of Reinforced Concrete written by Brian Cherry and published by CRC Press. This book was released on 2021-03-17 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reinforced concrete is the most widely used construction material in the world, and extended performance is rightly expected. Many structures are in aggressive environments, of critical importance and may be irreplaceable, so repair and protection are vital. This book surveys deterioration of concrete, particularly corrosion of the steel reinforcement, and the various chemical, biological, physical and mechanical causes of deterioration. It outlines condition survey and diagnosis techniques by on-site and laboratory measurements. It sets out mechanical methods of protection and repair, such as patching, inhibitors, coatings, penetrants and structural strengthening as well as cathodic protection and other electrochemical methods. This book also gives guidance on preventative measures including concrete technology and construction considerations, coatings and penetrants, alternate reinforcement, permanent corrosion monitoring and durability planning aspects. Asset managers, port engineers, bridge maintenance managers, building managers, heritage structure engineers, plant engineers, consulting engineers, architects, specialist contractors and construction material suppliers who have the task of resolving problems of corrosion of steel reinforced concrete elements will find this book an extremely useful resource. It will also be a valuable reference for students at postgraduate level. Authors The late Professor Brian Cherry of Monash University, Melbourne, Australia was one of the world’s leading corrosion science and engineering educators and researchers. Warren Green of Vinsi Partners, Sydney, Australia is a corrosion engineer and materials scientist. He is also an Adjunct Associate Professor.

Techniques to Assess the Corrosion Activity of Steel Reinforced Concrete Structures

Author : Neal Steven Berke
Publisher : ASTM International
ISBN 13 : 0803120095
Total Pages : 198 pages
Book Rating : 4.8/5 (31 download)

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Book Synopsis Techniques to Assess the Corrosion Activity of Steel Reinforced Concrete Structures by : Neal Steven Berke

Download or read book Techniques to Assess the Corrosion Activity of Steel Reinforced Concrete Structures written by Neal Steven Berke and published by ASTM International. This book was released on 1996 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: Whatever his name or alias at the moment—Henry McCarty, Henry Antrim, Kid Antrim, Billy Bonney—people always called him the Kid. Not until his final month did anyone call him Billy the Kid. Newspapers pictured him as a king of outlaws; and his highly publicized capture, trial, escape, and end fixed his image in the public mind for all time. He was only twenty-one years old when a bullet from Sheriff Pat Garett’s six-shooter killed him on July 14, 1881. Within a year Billy the Kid became the subject of five dime-novel “biographies” as well as Garett’s ghost-written account, and that was just the beginning. Robert M. Utley does what countless books, movies, television shows, musical compositions, and paintings have failed to do: he successfully strips off the veneer of legendry to expose the reality of Billy the Kid. Using previously untapped sources, he presents an engrossing story—the most complete and accurate ever—of a youthful hoodlum and sometime killer who found his calling in New Mexico’s bloody power struggle known as the Lincoln County War. In unmasking the legend Utley also tells us much about our heritage of frontier vigilantism and violence.

Laboratory and Field Investigation of Variables Influencing Corrosion of Steel in Concrete

Author : R. J. Kessler
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Laboratory and Field Investigation of Variables Influencing Corrosion of Steel in Concrete by : R. J. Kessler

Download or read book Laboratory and Field Investigation of Variables Influencing Corrosion of Steel in Concrete written by R. J. Kessler and published by . This book was released on 1986 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Evaluation of Corrosion Resistance of Different Steel Reinforcement Types

Author : Terry J. Wipf
Publisher :
ISBN 13 :
Total Pages : 84 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Evaluation of Corrosion Resistance of Different Steel Reinforcement Types by : Terry J. Wipf

Download or read book Evaluation of Corrosion Resistance of Different Steel Reinforcement Types written by Terry J. Wipf and published by . This book was released on 2006 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: The corrosion of steel reinforcement in an aging highway infrastructure is a major problem currently facing the transportation engineering community. In the United States alone, maintenance and replacement costs for deficient bridges are measured in billions of dollars. The application of corrosion-resistant steel reinforcement as an alternative reinforcement to existing mild steel reinforced concrete bridge decks has potential to mitigate corrosion problems, due to the fundamental properties associated with the materials. To investigate corrosion prevention through the use of corrosion-resistant alloys, the performance of corrosion resistance of MMFX microcomposite steel reinforcement, a high-strength, high-chromium steel reinforcement, was evaluated. The study consisted of both field and laboratory components conducted at the Iowa State University Bridge Engineering Center to determine whether MMFX reinforcement provides superior corrosion resistance to epoxy-coated mild steel reinforcement in bridge decks. Because definitive field evidence of the corrosion resistance of MMFX reinforcement may require several years of monitoring, strict attention was given to investigating reinforcement under accelerated conditions in the laboratory, based on typical ASTM and Rapid Macrocell accelerated corrosion tests. After 40 weeks of laboratory testing, the ASTM ACT corrosion potentials indicate that corrosion had not initiated for either MMFX or the as-delivered epoxy-coated reinforcement. Conversely, uncoated mild steel specimens underwent corrosion within the fifth week, while epoxy-coated reinforcement specimens with induced holidays underwent corrosion between 15 and 30 weeks. Within the fifth week of testing, the Rapid Macrocell ACT produced corrosion risk potentials that indicate active corrosion for all reinforcement types tested. While the limited results from the 40 weeks of laboratory testing may not constitute a prediction of life expectancy and life-cycle cost, a procedure is presented herein to determine life expectancy and associated life-cycle costs.

Advances and Trends in Structural Engineering, Mechanics and Computation

Author : Alphose Zingoni
Publisher : CRC Press
ISBN 13 : 0415618150
Total Pages : 386 pages
Book Rating : 4.4/5 (156 download)

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Book Synopsis Advances and Trends in Structural Engineering, Mechanics and Computation by : Alphose Zingoni

Download or read book Advances and Trends in Structural Engineering, Mechanics and Computation written by Alphose Zingoni and published by CRC Press. This book was released on 2010-08-16 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances and Trends in Structural Engineering, Mechanics and Computation features over 300 papers classified into 21 sections, which were presented at the Fourth International Conference on Structural Engineering, Mechanics and Computation (SEMC 2010, Cape Town, South Africa, 6-8 September 2010). The SEMC conferences have been held every 3 years in