Strand Corrosion In Prestressed Concrete Structures

Author : Lei Wang
Publisher : Springer Nature
Page : 261 pages
File Size : 50,7 Mb
Release : 2023-08-23
Category : Technology & Engineering
ISBN : 9789819920549

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Strand Corrosion in Prestressed Concrete Structures by Lei Wang Pdf

This is an open access book. This book focuses on the durability problems of existing prestressed concrete (PC) structures caused by strand corrosion, clarifies the mechanical behavior of corroded prestressing strands, corrosion-induced cracking, bond degradation, prestress loss and structural performance deterioration, and proposes the corresponding prediction models. Its aim is to provide the knowledge, tools, and methods to understand the deterioration phenomena of PC structures. We hope that this text may be useful for those who work in the field of civil engineering. It is suitable for teachers and students majoring in civil engineering in universities, and researchers in the field of civil engineering. It is also suitable for practitioners of design institutes, construction units, supervising units and traffic management departments.

Author : fib Fédération internationale du béton
Publisher : fib Fédération internationale du béton
Page : 24 pages
File Size : 44,6 Mb
Release : 2001-01-01
Category : Technology & Engineering
ISBN : 2883940517

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Factory Applied Corrosion Protection of Prestressing Steel by fib Fédération internationale du béton Pdf

Without doubt, active corrosion protection of prestressing steels by cement grout can be one of the most economic and durable solutions, if properly executed. Numerous other corrosion protection systems which fulfill requirements such as controllability and exchangeability are available. This state-of-the-art report, prepared by a task group and approved by fib Commission 9 Reinforcing and prestressing materials and systems, concentrates exclusively on factory applied corrosion protection that can be produced in controlled processes which should assure a better quality than corrosion protection applied on site. The report is addressed to designers and installers (executing persons) attempting to inform them about the various possibilities for industrially applied corrosion protection and to provide the necessary knowledge for their application.

Author : FIB – International Federation for Structural Concrete
Publisher : FIB - International Federation for Structural Concrete
Page : 52 pages
File Size : 40,9 Mb
Release : 1996-09-01
Category : Technology & Engineering
ISBN : 9781874266266

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Corrosion protection of prestressing steels by FIB – International Federation for Structural Concrete Pdf

Author : Luca Bertolini,Bernhard Elsener,Pietro Pedeferri,Elena Redaelli,Rob B. Polder
Publisher : John Wiley & Sons
Page : 389 pages
File Size : 46,8 Mb
Release : 2013-02-26
Category : Technology & Engineering
ISBN : 9783527651719

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Corrosion of Steel in Concrete by Luca Bertolini,Bernhard Elsener,Pietro Pedeferri,Elena Redaelli,Rob B. Polder Pdf

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.

Author : FIB – International Federation for Structural Concrete
Publisher : FIB - International Federation for Structural Concrete
Page : 17 pages
File Size : 47,7 Mb
Release : 1996-08-01
Category : Technology & Engineering
ISBN : 9781874266242

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Materials and systems for external prestressing by FIB – International Federation for Structural Concrete Pdf

Author : Anonim
Publisher : Thomas Telford
Page : 20 pages
File Size : 52,6 Mb
Release : 1989
Category : Technology & Engineering
ISBN : 0727715356

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Prestressed Concrete by Anonim Pdf

Post-tensioning and grouting operations can be dangerous if the required care is not taken in planning, in site preparations and in execution. For prestressed concrete a good working environment is also a prerequisite for high quality. Many accidents in this type of work may be attributed to a lack of training, poor supervision, poor planning or over-familiarity with the process. This guide to good practice highlights important safety measures which are particularly applicable to prestressed concrete, dealing with precautions necessary for post-tensioning and grouting operations on site.

Author : Maher K. Tadros,Sameh S. Badie,Christopher Y. Tuan
Publisher : Transportation Research Board
Page : 76 pages
File Size : 52,6 Mb
Release : 2010
Category : Technology & Engineering
ISBN : 9780309118354

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Evaluation and Repair Procedures for Precast/prestressed Concrete Girders with Longitudinal Cracking in the Web by Maher K. Tadros,Sameh S. Badie,Christopher Y. Tuan Pdf

This report establishes a user's manual for the acceptance, repair, or rejection of precast/prestressed concrete girders with longitudinal web cracking. The report also proposes revisions to the AASHTO LRFD Bridge Design Specifications and provides recommendations to develop improved crack control reinforcement details for use in new girders. The material in this report will be of immediate interest to bridge engineers.

Author : Ben C. Gerwick, Jr.
Publisher : John Wiley & Sons
Page : 624 pages
File Size : 48,8 Mb
Release : 1997-02-13
Category : Technology & Engineering
ISBN : 0471181137

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Construction of Prestressed Concrete Structures by Ben C. Gerwick, Jr. Pdf

Die zweite Auflage dieses Klassikers - jetzt als Paperback - bietet Profis auf diesem Gebiet eine aktuelle und kompetente Präsentation der Technologie der Vorbelastung von Stahlbeton. Grundlegende Techniken, Materialien und Systeme werden behandelt und vielfältige Anwendungen - Gebäude, Brücken, Bohrplattformen, Straßen, Rollbahnen, Rohrleitungen - erläutert.

Author : J. L. Smith
Publisher : Unknown
Page : 90 pages
File Size : 53,8 Mb
Release : 2000
Category : Concrete bridges
ISBN : UOM:39015043254385

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Materials and Methods for Corrosion Control of Reinforced and Prestressed Concrete Structures in New Construction by J. L. Smith Pdf

Salt-induced reinforcing steel corrosion in concrete bridges has undoubtedly become a considerable economic burden to many State and local transportation agencies. Since the iron in the steel has a natural tendency to revert eventually to its most stable oxide state, this problem will, unfortunately, still be with us, but to a much lesser degree due to the use of various corrosion protection strategies currently used in new construction. The adoption of corrosion protection measures in new construction, such as the use of good design and construction practices, adequate concrete cover depth, low-permeability concrete, corrosion inhibitors, and coated reinforcing steel is significantly reducing the occurrence of reinforcing steel corrosion in new bridges.

Author : E. Escalante,Satoshi Itō
Publisher : Unknown
Page : 32 pages
File Size : 41,8 Mb
Release : 1979
Category : Bridges, Concrete
ISBN : UIUC:30112104127300

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A Bibliography on the Corrosion and Protection of Steel in Concrete by E. Escalante,Satoshi Itō Pdf

Author : Amir Poursaee
Publisher : Woodhead Publishing
Page : 400 pages
File Size : 46,9 Mb
Release : 2023-02-20
Category : Technology & Engineering
ISBN : 9780323851329

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Corrosion of Steel in Concrete Structures by Amir Poursaee Pdf

Essential reading for researchers, practitioners, and engineers, this book covers not only all the important aspects in the field of corrosion of steel reinforced concrete but also discusses new topics and future trends. Theoretical concepts of corrosion of steel in concrete structures, the variety of reinforcing materials and concrete, including stainless steel and galvanized steel, measurements and evaluations, such as electrochemical techniques and acoustic emission, protection and maintenance methods, and modelling, latest developments, and future trends in the field are discussed. Comprehensive coverage of 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 Second edition covers a range of new, 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

Author : fib Fédération internationale du béton
Publisher : fib Fédération internationale du béton
Page : 52 pages
File Size : 42,8 Mb
Release : 2003
Category : Technology & Engineering
ISBN : 2883940665

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Influence of Material and Processing on Stress Corrosion Cracking of Prestressing Steel - Case Studies by fib Fédération internationale du béton Pdf

This report is a review of selected failures in concrete structures in which prestressing steels break in a brittle way due to stress corrosion cracking. Most cases are from the German experience over a period of about 30 years. Analysis of these failures shows that they are often due to an accumulation of causes such as poor design, errors during construction, careless detailing and, in some cases, use of unsuitable materials. This report will have achieved its purpose if it serves to avoid these past errors and encourages the development of new ways to protect, test and regulate prestressing steels. The report is complemented with comments on the properties and corrosion behaviour of different types of prestressing steels. The goal of the study is to provide objective arguments for the discussion of failures that have occurred due to corrosion induced failure of prestressing steel. In such a way the general regulation given in DIN with respect to reinforcement for robustness may eventually be proven inappropriate. The general building authority approval for prestressed hollow filler block floors already supports such an idea. It is well known that the hollow block floor industry works without any reinforcing steel. The regulations in the standards should not limit in particular the use of these types of prestressing steel (cold-formed wires, strands) which have proven not associated with any substantial failures cases reported in the last 35 years. The report reviews the historical development with respect to corrosion induced failure of prestressing steel. Concerning the circumstances of the failure examples, this review partly reflects a specific problem in Germany. Also reviewed are other known interregional examples of failure which are incorrectly attributed to the prestressed construction method. All cases considered are discussed and the failure reasons thoroughly evaluated, also with reference to the results of most recent research. Another question addressed is whether one should be concerned over corrosion induced retarded failure even when using new generation prestressing steel with correct corrosion protection. Finally a contribution to the following very important question is presented: Do the future prestressed structures possess enough safety against structural failure if they are constructed without reinforcement for robustness but otherwise comply completely with the design standards? To aid a better understanding of this short report on typical failure cases and their origins, the main conditions are set out for corrosion-induced failure of prestressing steel in technical applications. The properties of different types of prestressing steel and their application limits are given in a special section dealing with the influence of building materials on damage development. This report will be of interest to all involved in the construction process. Fundamental scientific discussion has been avoided by reference to well accredited detailed information in the technical literature.

Author : M.K. Hurst
Publisher : CRC Press
Page : 277 pages
File Size : 55,9 Mb
Release : 2017-12-21
Category : Architecture
ISBN : 9781351990882

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Prestressed Concrete Design by M.K. Hurst Pdf

Prestressed concrete is widely used in the construction industry in buildings, bridges, and other structures. The new edition of this book provides up-to-date guidance on the detailed design of prestressed concrete structures according to the provisions of the latest preliminary version of Eurocode 2: Design of Concrete Structures, DD ENV 1992-1-1: 1992. The emphasis throughout is on design - the problem of providing a structure to fulfil a given purpose - but fundamental concepts are also described in detail. All major topics are dealt with, including prestressed flat slabs, an important and growing application in the design of buildings. The text is illustrated throughout with worked examples and problems for further study. Examples are given of computer spreadsheets for typical design calculations. Prestressed Concrete Design will be a valuable guide to practising engineers, students and research workers.

Author : A. E. N. Osborn,John Steven Lawler,James D. Connolly,National Cooperative Highway Research Program
Publisher : Transportation Research Board
Page : 141 pages
File Size : 53,7 Mb
Release : 2008
Category : Prestressed concrete
ISBN : 9780309117616

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Acceptance Tests for Surface Characteristics of Steel Strands in Prestressed Concrete by A. E. N. Osborn,John Steven Lawler,James D. Connolly,National Cooperative Highway Research Program Pdf

This report provides practical tests to identify and measure residues (e.g., rust, lubricants used in manufacturing processes, or corrosion inhibitors) on the surface of steel prestressing strands and to establish thresholds for residue types found to affect the strength of the strand's bond to concrete. Key products presented here are four test methods suitable for use in a quality assurance program for the manufacture of steel prestressing strand.

Author : Paul Chess,Warren Green
Publisher : CRC Press
Page : 149 pages
File Size : 53,8 Mb
Release : 2019-12-23
Category : Technology & Engineering
ISBN : 9781000766684

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Durability of Reinforced Concrete Structures by Paul Chess,Warren Green Pdf

Reinforced concrete structures corrode as they age, with significant financial implications, but it is not immediately clear why some are more durable than others. This book looks at the mechanisms for corrosion and how corrosion engineering can be used for these problems to be minimized in future projects. Several different examples of reinforced concrete structures with corrosion problems are described and the various life enhancement solutions considered and applied are discussed. The book includes a chapter on the effectiveness of corrosion monitoring techniques and questions why the reality is at odds with current theory and standards. Specialist contractors, consultants and owners of corrosion damaged structures will find this an extremely useful resource. It will also be a valuable reference for students at postgraduate level.