Download or read book Stress Corrosion Cracking of Cold Drawn Prestressing Tendon written by K. F. McGuinn and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Influence of Material and Processing on Stress Corrosion Cracking of Prestressing Steel Case Studies written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2003 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Report on prestressed steel 5 stress corrosion cracking resistance test for prestressed tendons written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 1980-01-01 with total page 57 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Corrosion protection of prestressing steels written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 1996-09-01 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of zinc on prestressing steel written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2012-06-01 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concerns have been raised regarding the durability of galvanized prestressing steels in contact with cementitious grout, and regarding the use of galvanized ducts for grouted tendons or galvanized inserts or components in contact with prestressing steel inside concrete. These concerns are mainly based on the assumption that the hydrogen formed on the zinc surface when exposed to the fresh cementitious grout for a short period of time represents a risk of hydrogen induced stress corrosion for the prestressing steel. Basic research has demonstrated that hydrogen induced stress corrosion may indeed occur with prestressing steels which are sensitive to hydrogen induced stress corrosion. The use of galvanizing for high strength steels exposed to atmosphere is less controversial. However, under certain conditions hydrogen may develop also and potentially damage the high strength steel. This report provides a summary and evaluation of the relevant parameters on the corrosion behaviour of high strength wires, strands and bars when in contact with zinc with and without the presence of fresh cementitious grout or concrete. Both, tendons made of prestressing steels used in structural concrete and cables under atmospheric conditions are considered. The main groups of applications discussed in the report are: A Zinc-coated high strength steel for applications in atmospheric corrosion conditions B Zinc-coated prestressing steel embedded in fresh cementitious grout or concrete C Bare prestressing steel (no zinc coating) embedded in fresh cementitious grout or concrete in direct contact with, or indirect contact in the immediate vicinity of galvanized components embedded in the grout or concrete (e.g. galvanized ducts, galvanized reinforcing steel, galvanized fastenings / dowels, etc).

Download or read book Report on prestressing steel 1 types and properties written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 1976-08-01 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tendons written by FIB – International Federation for Structural Concrete and published by FIB - International Federation for Structural Concrete. This book was released on 1995-08-01 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Stress corrosion Cracking of Prestressing Steel Tendons written by A. S. Y. Hong and published by . This book was released on 1982 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings fib Symposium in Stuttgart written by FIB – International Federation for Structural Concrete and published by FIB - Féd. Int. du Béton. This book was released on 2008-09-01 with total page 1168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmentally Assisted Cracking written by R. D. Kane and published by ASTM International. This book was released on 2000 with total page 491 pages. Available in PDF, EPUB and Kindle. Book excerpt: The November 2000 symposium addressed methodologies for evaluation of environmental assisted cracking (EAC) in equipment and structures exposed to corrosive environments, and recent developments in the generation of relevant materials properties data based on laboratory tests. Twenty-seven papers fr

Download or read book Rock Dynamics and Applications 3 written by Charlie C. Li and published by CRC Press. This book was released on 2018-06-18 with total page 1219 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rock Dynamics – Experiments, Theories and Applications is a collection of scientific and technical papers presented at the Third International Conference on Rock Dynamics and Applications (RocDyn-3, Trondheim, Norway, 26-27 June 2018). The papers in the book reflect the recent developments in experiment and theory as well as engineering applications of rock dynamics. Rock dynamics studies the response of rock and rock masses under dynamic loading and during the state transition from static loading to kinetic movement. It also includes the study of engineering countermeasures to dynamic instability of rock and rock masses. The topics in the book include: - Dynamic theories - Numerical simulation - Propagation of stress waves - Dynamic tests of rock - Stability of underground openings under dynamic loading - Rockburst - Seismic monitoring - Dynamic rock support - Blasting - Earthquake-related rock structure damage, etc. Applications, such as rockburst, dynamic rock support, seismic monitoring, blasting and earthquake-related rock structure damage, are paid special attention in Rock Dynamics – Experiments, Theories and Applications. The papers, from specialists both from mining and tunnelling branches, discuss commonly interested dynamic issues. Their experience and knowledge in the application of rock dynamics are extremely valuable for all academics, engineers and professionals who work with rock dynamics.

Download or read book Fracture mechanics of concrete Structural application and numerical calculation written by George C. Sih and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 289 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concrete has traditionally been known as a material used widely in the construction of roads, bridges and buildings. Since cost effectiveness has always been one of the more important aspects of design, concrete, when reinforced and/or prestressed, is finding more use in other areas of application such as floating marine structures, storage tanks, nuclear vessel containments and a host of other structures. Because of the demand for concrete to operate under different loading and environmen tal conditions, increasing attention has been paid to study concrete specimens and structure behavior. A subject of major concern is how the localized segregation of the constituents in concrete would affect its global behavior. The degree of nonhomogeneity due to material property and damage. by yielding and/or cracking depends on the size scale and loading rate under consideration. Segregation or clustering of aggregates at the macroscopic level will affect specimen behavior to a larger degree than it would to a large structure such as a dam. Hence, a knowledge of concrete behavior over a wide range of scale is desired. The parameters governing micro-and macro-cracking and the techniques for evaluating and observing the damage in concrete need to be better understood. This volume is intended to be an attempt in this direction. The application of Linear Elastic Fracture Mechanics to concrete is discussed in several of the chapters.

Download or read book Fracture and Damage of Concrete and Rock FDCR 2 written by H.P. Rossmanith and published by CRC Press. This book was released on 2002-11-01 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book forms the Proceedings of the International Conference held in Vienna in November 1992 dealing with ageing, fatigue and fracture of concrete and concrete structures. Special sections cover demolition and recycling, and anchorage engineering. As well as selected international contributions, five specially invited plenary papers are included from Austria, Spain, Japan, Denmark and Sweden.

Download or read book Report on the Stress corrosion Cracking of Pre stressing Steel Tendons written by A. S. Y. Hong and published by . This book was released on 1983* with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Report on Prestressing Steel Stress corrosion cracking resistance test for prestressing tendons written by Fédération internationale de la précontrainte. Commission on Prestressing Steels and Systems and published by . This book was released on 1980 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Treatise on Corrosion Science Engineering and Technology written by U. Kamachi Mudali and published by Springer Nature. This book was released on 2022-05-04 with total page 797 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume elaborates on various corrosion processes in different applications and their prevention strategies. It comprehensively covers the principles of corrosion, engineering issues, methods of corrosion protection and defines corrosion processes and control in select aggressive end industrial environments. The contents especially focus on corrosion issues in nuclear, aerospace, marine, high temperature, bioimplants, automobile, and addresses the application of advanced materials to mitigate them. A special section on corrosion prevention strategies with innovative solutions to resolve corrosion issues in various environments is the highlight of this book. This volume will be a useful guide for those in research, academia and industry, particularly to know state of art in corrosion control and prevention for various practical applications.

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1962 with total page 1116 pages. Available in PDF, EPUB and Kindle. Book excerpt: