Technologies For Improving The Evaluation And Repair Of Concrete Bridge Decks Ultrasonic Pulse Echo And Polymer Injection
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Technologies For Improving The Evaluation And Repair Of Concrete Bridge Decks
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Author :
language : en
Publisher:
Release Date : 1998
Technologies For Improving The Evaluation And Repair Of Concrete Bridge Decks written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Bridges categories.
Masonry
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Author : Joseph H. Brisch
language : en
Publisher: ASTM International
Release Date : 1999
Masonry written by Joseph H. Brisch and has been published by ASTM International this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with Technology & Engineering categories.
Papers from a June 2006 symposium report on recent work in cement, lime, mortars for unit masonry, and manutactured masonry units. Some specific topics covered include investigation and repair of glazed brick cladding, the benefits and problems of ASTM C 1324 for analyzing hardened masonry mortars, time-of-cooling effects on mortar joint color, and the selection and use of natural and manufactured stone adhered veneer. Other subjects examined include defection criteria for masonry beams, the effect of void area on brick masonry performance, seismic evaluation of low-rise reinforced masonry buildings with flexible diaphragms, and greening of mortars. B&w photos and illustrations are included. Trimble is affiliated with the Brick Industry Association. Brisch is affiliated with Rockwell Lime Company. There is no subject index.
Technologies For Improving The Evaluation And Repair Of Concrete Bridge Decks Ultrasonic Pulse Echo And Polymer Injection
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Author : Michel Alexander
language : en
Publisher:
Release Date : 1998
Technologies For Improving The Evaluation And Repair Of Concrete Bridge Decks Ultrasonic Pulse Echo And Polymer Injection written by Michel Alexander and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
A significant number of concrete bridge decks, both public- and nonpublic use, in the United States are subjected to a variety of detrimental environmental conditions. Many of the decks are in northern regions and are subject to cold weather; some of these are subjected to further degradation from the applications of deicing salts. The current major distress noted is the occurrence of shallow delaminations resulting in horizontal voids below the surface of the decks. It appears the majority of the delaminations are caused by freezing and thawing action, by chloride attack that corrodes the reinforcement, and by alkali-silica reaction. All three attack mechanisms require the presence of moisture. Efforts to design and place a dense, impermeable concrete are hindered at times due to the porous nature of concrete. As the concrete ages, a micro system of tension cracks and other surface imperfections can develop, exposing the matrix to water and chloride infiltration. Water infiltration alone can lead to accelerated alkali-silica reaction and steel-reinforcement corrosion. Surface spalling not only reduces ride quality, but it leads to more serious problems including structural deterioration and failure. Many concrete sealers and penetrants on the market are designed to protect concrete by improving and enhancing its physical properties. Surface sealers such as silane, silicones, and siloxanes have been developed to prevent the infiltration of moisture and chlorides. Penetrants such as high molecular weight methacrylate (HMWM) and epoxies have been developed to penetrate and fill cracks and porous areas in the concrete, sealing it against the infiltration of air, water, and chloride. Once the concrete is effectively sealed, both the progression of alkali-silica reaction and the corrosion of the reinforcing steel are arrested. These materials are also designed to bond to the concrete and thus to the structural integrity of the concrete.
Applied Science Technology Index
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Author :
language : en
Publisher:
Release Date : 1996
Applied Science Technology Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Engineering categories.
Concrete International
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Author :
language : en
Publisher:
Release Date : 1997
Concrete International written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Concrete categories.
Highway Infrastructure
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Author : Albert F. DiMillio
language : en
Publisher:
Release Date : 1986
Highway Infrastructure written by Albert F. DiMillio and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1986 with Technology & Engineering categories.
Polymer Injection Ultrasonic Pulse Echo Port Upe System For Concrete Bridge Deck Repair
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Author : University of Nebraska--Lincoln. Center for Infrastructure Research
language : en
Publisher:
Release Date : 1997
Polymer Injection Ultrasonic Pulse Echo Port Upe System For Concrete Bridge Deck Repair written by University of Nebraska--Lincoln. Center for Infrastructure Research and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Concrete bridges categories.
Polymer Overlay And Injection For Concrete Bridge Deck Repair
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Author : Steve L. Cheney
language : en
Publisher:
Release Date : 1998
Polymer Overlay And Injection For Concrete Bridge Deck Repair written by Steve L. Cheney and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
Bridge Evaluation Repair And Rehabilitation
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Author : A.S. Nowak
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Bridge Evaluation Repair And Rehabilitation written by A.S. Nowak and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
Evaluation, repair and rehabilitation of bridges are increasingly important topics in the effort to deal with the deteriorating infrastructure. For example, in the United States about 40 percent of the nation's 570,000 bridges are classified, according to the Federal Highway Administra tion's (FHW A) criteria, as deficient and in need of rehabilitation and replacement. In other countries the situation is similar. FHW A estimates the cost of a bridge replacement and reha bilitation program at 50 billion dollars. The major factors that have contributed to the present situation are: the age, inadequate maintenance, increasing load spectra and environmental contamination. The deficient bridges are posted, repaired or replaced. The disposition of bridges involves clear economical and safety implications. To avoid high costs of replacement or repair, the evaluation must accurately reveal the present load carrying capacity of the struc ture and predict loads and any further changes in the capacity (deterioration) in the applicable time span. Accuracy of bridge evaluation can be improved by using the recent developments in bridge diagnostics, structural tests, material tests, structural analysis and probabilistic methods. There is a need for an international exchange of advanced experience to increase the research effi ciency. The Workshop is organized on the premise that the exchange of existing American and European experience in the area of bridge evaluation, repair and rehabilitation is beneficial for both parties involved.
The Interpretation Of Ultrasonic Wave Signals Received From Concrete Bridge Decks With Simulated Cracks Using Ultrasonic Pulse Velocity Technique
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Author : Liz Jean Zea Garavito
language : en
Publisher:
Release Date : 1997
The Interpretation Of Ultrasonic Wave Signals Received From Concrete Bridge Decks With Simulated Cracks Using Ultrasonic Pulse Velocity Technique written by Liz Jean Zea Garavito and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1997 with Bridges categories.