Download or read book Specification for Grouting of Post tensioned Structures written by and published by . This book was released on 2020 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This specification provides minimum requirements for the selection, design, and installation of cementitious grouts for steel post-tensioned systems used in concrete construction. The purpose of the grout is to provide corrosion protection to the prestressing steel and in bonded post-tensioning (PT) applications to develop bond between the prestressing steel and the surrounding concrete." -- From publisher

Download or read book Specification for grouting of post tensioned structures written by Post-Tensioning Institute and published by . This book was released on 2003 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Specification for Grouting of Post Tensioned Structures written by PTI Grouting Specifications Committee and published by . This book was released on 2001-02-01 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: This guide specification provides minimum requirements for the selection design and installation of cementitious grouts and ducts for steel post-tensioned systems used in concrete construction. It is intended for use in a wide variety of structure types including buildings and bridges. Portions of this specification apply to cable-stayed bridges.

Download or read book Grouting of Tendons in Prestressed Concrete written by fib Fédération internationale du béton and published by fib Fédération internationale du béton. This book was released on 2002-01-01 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prestressed Concrete is a very efficient form of construction; it takes advantage of the strength of concrete in compression. Developed mainly over the second part of the 20th century, it has proven to be reliable and durable. However, in the 1990's some cause for concern was discovered, first in the UK and followed by many other countries of the world. It appeared that the grout, an important means of protection of the steel against corrosion for internally ducted tendons, was in some cases inadequate. Major investigations followed including physical intrusive examination of ducts, mainly in bridges, and re-writing of procedures, processes and specifications, and in 1998 FIP launched a Task Group to review their advice note "Guidelines for Grouting" which had first been published in 1990. The merger of FIP and CEB in 1998 brought this under the auspices of fib. Structural deficiencies have only been found in a small number of bridges and in most of these cases the cause is clearly identifiable as either design detailing, workmanship or materials. In the UK, the Concrete Society report TR47 "Durable Post-tensioned Concrete Bridges" had been published in 1996, which was the culmination of four years of investigative research, and contained major new specifications and procedures aimed at improving the quality of grouting. In the USA, the Post Tensioning Institute published in 2001 their guide "Specification for Grouting of Post-Tensioned Structures", which also represented major steps forward in materials and testing requirements. The American Segmental Bridge Institute has set up a Committee to re-examine their guidelines, as have many other National Bodies worldwide. In Europe, France has issued a "Fascicule No. 65A" covering requirements for grouting and there are many developments in hand in other countries. Also in Europe, a European Technical Approval Guideline (ETAG) has been published for approval of post-tensioning systems which covers several aspects of grout and grouting. In November 2001 an international workshop was held in Ghent, Belgium on "Durability of Post-Tensioning Tendons" [see fib Bulletin 15] at which international experience was exchanged. The theme was clearly apparent; those bridge owners that have looked, have found some problems with a few of their post-tensioned bridges. In most cases steps are being taken to repair existing bridges, where considered necessary, and to improve future construction by reviewing national specifications. Emphasis is being put on a multi-layer protection strategy whereby protection against corrosion is provided by waterproofing, dense impermeable concrete, sealed ducts and good quality grout. Design detailing and rain water management are seen as important aspects. It was, therefore, timely for fib to publish state-of-the-art guidelines to assist in developing and improving the quality of a major line of defence against corrosion, the cement grout. This document represents a consensus view of current practitioners of what is a rapidly developing awareness of some of the shortcomings of previous practice and suggests improvements. This document is a major update of the previous FIP Guidelines and may be taken as a future basis for updating EN 445-447. New areas include understanding of the deleterious effects of an unstable grout, bleeding and how to avoid it, the importance of training and proper procedures, mix design and testing/trials and some new test procedures. It is now understood and generally accepted that the properties of common grout made from cement and water can be very variable and sometimes unpredictable and such grout is not recommended.

Download or read book Guide Specification for Grouting of Post tensioned Structures written by Post-Tensioning Institute and published by . This book was released on 2000 with total page 65 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Design of Post tensioned Slabs on ground written by and published by . This book was released on 2008 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Practical Handbook of Grouting written by James Warner and published by John Wiley & Sons. This book was released on 2004-04-05 with total page 734 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first complete handbook for every aspect of grouting technology The Practical Handbook of Grouting offers the most comprehensive, single-source reference covering all facets of grouting technology, including its application for control of water movement, strengthening of both soil and rock, and a wide range of structural applications. Richly illustrated with hundreds of informative photographs, graphs, and figures, this handbook provides invaluable advice on all stages of a project from initial investigation and design, through execution, monitoring, and quality control. Broad coverage in the Practical Handbook of Grouting begins with a general overview of the topic and includes design and quality control issues, injection techniques, and a thorough discussion of drilling and grouting equipment, with practical focus on building custom equipment. Enriched with real-world insights from the author, the Practical Handbook of Grouting features the latest information on: * Cementitious and noncementitious grouts, including new admixtures and polymers * Special construction requirements, including grouting inside structures, underground spaces, in extreme environments, and for emergency response support * Grouting equipment, including pumps, mixers, agitators, and delivery and monitoring systems * Pump mechanics, including the advantages and limitations of all pump types * "The Games Contractors Play," including marketing efforts, proposal trickery, on-the-job issues, and defending bad work Complete with an extensive bibliography and references, the Practical Handbook of Grouting is a valuable resource for civil, structural, and geotechnical engineers, geologists, contractors, and students in related fields.

Download or read book Post tensioning Manual written by Post-Tensioning Institute and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recommendations for Stay Cable Design Testing and Installation written by Post-Tensioning Institute. Committee on Cable-Stayed Bridges and published by . This book was released on 2001 with total page 101 pages. Available in PDF, EPUB and Kindle. Book excerpt: Published in SI units, and re-organized into a Load and Resistance Factor Design (LRED) format, designed to be used with the AASHTO LRED Bridge Design Code.

Download or read book 2015 International Mechanical Code Commentary written by International Code Council and published by . This book was released on 2014-11-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Unlike any other book on the market, the 2015 INTERNATIONAL MECHANICAL CODE COMMENTARY is a powerhouse of features: a renowned author team, the entire text and tables from the 2015 International Mechanical Code (IMC), and valuable commentaries that put its technical requirements into a real-world context. Section by section, the book guides readers through the 2015 IMC, presenting clear, detailed explanations that expand on its regulations along the way. These commentaries examine the code�s implications and methods of application, as well as the potential consequences that may arise when not followed. With a focus on the effective design and installation of mechanical systems, coverage includes ventilation, exhaust systems, duct systems, hydronic heating, and more. When it comes to the 2015 IMC, there simply isn�t a better resource and reference guide available, and you won�t to be in the field without it.

Download or read book Precast Prestressed Concrete Short Span Bridges written by Prestressed Concrete Institute and published by Precast/Prestressed Concrete Institute. This book was released on 1980 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydraulic Design Criteria written by and published by . This book was released on 1977 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Human Security written by W.E. Blatz and published by University of Toronto Press. This book was released on 1966-12-15 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: During his lifetime, W.E. Blatz was so much occupied with the development of the University of Toronto’s Institute of Child Study that he was able to devote little time to writing. This is his first book to appear in twenty-one years, and his first complete exposition of his famous Theory of Security. The Theory of Security is radically different from the theories promulgated by Freudian psychologists. Whereas Freudian personality theory is based on the notion of “unconscious,” an entity that is only indirectly observable, the Theory of Security derives from the observation of the conscious state in all its manifestations. Dr. Blatz thus makes use of both empirical observations and the results of introspection, and, as might be expected, some of his conclusions run counter to those reached in much current psychological discussion. But proof of the forcible influence of the theory and its author may be found in the impressive number of books and articles already published by Dr. Blatz’s associates at the Institute of Child Study, applying the theory to the practical problems of psychological observation and therapy. It is fitting that the man whose work has generated so much fruitful research by others in this field should at last have set down in book form the fundamental principles that guided them.

Download or read book Bridgescape written by Frederick Gottemoeller and published by Wiley-Interscience. This book was released on 1998-05-21 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite their utilitarian nature, many bridges constitute the most visually stunning structures of our cities and towns. In Bridgescape: The Art of Designing Bridges, Frederick Gottemoeller brings the aesthetic aspects of bridge design within the grasp of all architects, engineers, and designers. This innovative approach challenges the reader to design and build bridges that are both functional and pleasing to the eye. Gottemoeller demystifies the creative process by breaking down the bridge into its most fundamental elements-line, form, and placement in the site, as well as color, texture, and ornamentation. The author shows how to plan bridges that take into account symbolism, historical meaning, and our ability to understand the visual world. But Bridgescape is more than an introduction to the aesthetic and engineering aspects of building a bridge. The author also discusses the dynamics of involving local authorities and the community in bridge design. From highway to pedestrian bridges, this book offers realistic and enlightening solutions for incorporating visually distinctive bridges within real-world situations and contexts. Working from the "skeleton" of the bridge-its girders, piers, and abutments-to its decorative features-color, carving, and texture-the author offers practical, easy-to-understand guidelines that can be applied to even the smallest of bridge design projects. Just a few key factors can profoundly enhance a bridge's appearance. Distinct from the technical books that separate architecture from engineering, Bridgescape offers a refreshing survey of the power of aesthetics in modern bridge design. A sixteen-page color insert enlivens the text, which is generously illustrated with over 280 photographs and drawings of bridges. Both engineers and architects will find Bridgescape an indispensable reference volume and an inspiring introduction to the aesthetic side of bridge engineering.

Download or read book Field Procedures Manual for Unbonded Single Strand Tendons written by Post-Tensioning Institute and published by . This book was released on 2016 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Concrete Thin Shells written by Stefan Jerzy Medwadowski and published by . This book was released on 1971 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Manual for Quality Control for Plants and Production of Structural Precast Concrete Products written by Precast and published by . This book was released on 2021-07 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Specifiers, producers, testing labs, inspection consultants, teachers, designers, and quality technicians should all have a copy of this QC manual. These standards and the accompanying commentary will serve as a strong foundation for a plant's quality system for the manufacture of structural precast concrete products and for the manufacture of structural precast concrete products with architectural finishes