Download or read book Evaluation of Selected Repair Methods for Chloride included Corrosion Damaged Reinforced Concrete Railway Bridges written by Mohamed Jogiat and published by . This book was released on 2019 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Select Methods of Corrosion Control Corrosion Prevention and Repair in Reinforced Concrete Bridges written by Habib Tabatabai and published by . This book was released on 2009 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Manual on Service Life of Corrosion damaged Reinforced Concrete Bridge Superstructure Elements written by Ali Akbar Sohanghpurwala and published by Transportation Research Board. This book was released on 2006 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Long term Performance of Corrosion Inhibitors Used in Repair of Reinforced Concrete Bridge Components written by Moavin Islam and published by DIANE Publishing. This book was released on 2003 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of the project was to determine the effectiveness of cathodic protection, electrochemical chloride extraction, and corrosion-inhibitor treatment systems installed during the SHRP effort through the long-term evaluation of 32 field test sites and a number of laboratory concrete slab specimens. The FHWA program required monitoring the long-term performance of corrosion inhibitor treatments on selected components of four bridges that were treated and evaluated under SHRP C-103. Three evaluations over a period of 5 years were conducted on structures located in Minnesota, New York and Pennsylvania, and two evaluations were conducted on a structure in Washington State. An analysis of the results concluded that neither of the corrosion inhibitors evaluated in this study, using the specified repairs and exposed to the specific environments, provided any corrosion-inhibiting benefit. Shrinkage cracking plagued repairs at all test sites except for the Washington site.
Download or read book Condition Evaluation of Concrete Bridges Relative to Reinforcement Corrosion written by Stephen E. Herald and published by . This book was released on 1993 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report deals with the selction of a method and the development of detailed procedures to accurately measure the chloride content of reinforced concrete in the field. Specific ion probe, spectrophotometer, digital titrator, and quantab titrator stips were the methods investigated. Results from laboratory procedures and evaluation based on cost, speed accuracy, and levels of required expertise indicated that the specific ion probe was more suitable for use in the field than the other methods selected. Field validation testing was done to substantiate laboratory findings. Guidelines were produced for the instrumentation, digestion solution, and test procedure. The enhanced procedures were evaluated.
Download or read book Evaluation of Electrochemical Chloride Extraction Fiber Reinforced Polymer Wraps and Concrete Sealers for Corrosion Mitigation in Reinforced Concrete Bridge Structures written by Michael S. Murphy and published by . This book was released on 2019 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reinforced concrete bridge substructures in Minnesota and other northern climates possess an elevated risk for chloride induced corrosion damage, which can reduce capacity and shorten service life. Research was performed in 1997 to investigate new strategies for corrosion mitigation, including electrochemical chloride extraction (ECE) and installation of fiber reinforced polymer (FRP) wrap, which were applied on several corrosion-damaged piers on a 30-year-old bridge in Minneapolis. This report presents the results of follow-up research performed to assess the condition of the treated piers after 20 additional years of service, in order to understand the long-term effectiveness of the strategies implemented. The combination of ECE treatment and FRP wrap installation was found to be very effective, with no concrete distress or probable corrosion activity identified in the treated elements. Poor or mixed performance was observed with all other strategies, including both ECE treatment followed by application of a penetrating sealer and FRP wrap installation that was not accompanied with ECE. In addition, significant chloride contamination occurred in all of the subject piers within the 20 years since the initial study, indicating that neither FRP wrap nor concrete sealers prevented the ingress of new chlorides in the manner in which these systems were installed in the initial study. The findings indicated that performing ECE treatment, or installing FRP wraps, did not alone eliminate the risk of future corrosion activity. The most effective corrosion mitigation strategy to extend the service life of reinforced concrete bridge substructures was to minimize water and chloride exposure.
Download or read book Corrosion Damaged Concrete written by Peter Pullar-Strecker and published by Spon Press. This book was released on 1987 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Portland Cement Concrete for Permanent Bridge Deck Repair written by Kenneth C. Clear and published by . This book was released on 1974 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Corrosion Protection Methods for Reinforced Concrete Highway Structures written by Jennifer L. Kepler and published by . This book was released on 2000 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the 1970s, research projects and field studies have been conducted on different methods for protecting reinforced concrete bridges from corrosion damage. The methods include alternative reinforcement and slab design, barrier methods, electrochemical methods, and corrosion inhibitors. Each method and its underlying principles are described, performance results of laboratory and/or field trials are reviewed, and systems are evaluated based on the results of the trials. Using performance results from the studies and costs obtained from transportation agencies, an economic analysis is used to estimate the cost of each system over a 75-year economic life using discount rates of 2%, 4% and 6%.
Download or read book Damage Evaluation and Repair Methods for Prestressed Concrete Bridge Members written by George O. Shanafelt and published by Transportation Research Board National Research. This book was released on 1980-01-01 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Condition Evaluation of Concrete Bridges Relative to Reinforcement Corrosion written by Philip Dale Cady and published by . This book was released on 1992 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: A procedure is presented for the condition assessment of concrete bridge components. It is based on a rational integration of 13 applicable, current test methods or procedures with 7 newly developed methods. The selection of the current methods is detailed in Volume 1 of this report, and the developement of the 7 new procedures is presentted in Volumes 2 through 7. While The primary emphasis is on deterioration associated with chloride-induced corrosion of reinforcing steel, all aspects of durability relative to concrete bridge components are addressed. The procedure is designed to be flexible and amenable to tailoring to suit the needs of the individual highway agency.
Download or read book Condition Evaluation of Concrete Bridges Relative to Reinforcement Corrosion Method for field determination of total chloride content written by and published by . This book was released on 1992 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Concrete Bridge Protection Repair and Rehabilitation Relative to Reinforcement Corrosion written by Richard E. Weyers and published by Strategic Highway Research Program (Shrp). This book was released on 1993 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: This manual is a practical guide for state highway agency personnel who are faced with the day-to-day task of cost-effectively protecting repairing, and rehabilitating concrete bridges exposed to chloride laden environments. The manual addresses the chloride induced corrosion of reinforcing steel. Methods are presented to estimate the service life and remaining service life of concrete bridge components. Economic models are presented to enable selection of the most cost effective methods. These methods include standard physical, chemical, and experimental protection, repair, and rehabilitation. Also, rapid bridge deck protection, repair, and rehabilitation methods are presented. Two mechanized concrete removal methods, milling and hydrodemolition, are compared to the traditional method, pneumatic breakers. The advantages of combining the strengths of the three removal methods are also presented.
Download or read book Corrosion of Reinforcement written by P. R. Vassie and published by . This book was released on 1986 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NCHRP Report 558 written by Ali Akbar Sohanghpurwala and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1985 with total page 566 pages. Available in PDF, EPUB and Kindle. Book excerpt:
