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Cathodic Protection Of Concrete Bridge Decks Using Titanium Mesh Anodes
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Book Synopsis Cathodic Protection of Concrete Bridge Decks Using Titanium-mesh Anodes by : Gerardo G. Clemeña
Download or read book Cathodic Protection of Concrete Bridge Decks Using Titanium-mesh Anodes written by Gerardo G. Clemeña and published by . This book was released on 2000 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anodes are a critical component of cathodic protection systems. A continuous research effort in Virginia is being aimed at searching for the most suitable anode for use in cathodic protection of the various types of concrete bridge components that are exposed to intrusion by chloride ions. As part of this effort, three different catalyzed titanium mesh anodes were tested, side by side, in a cathodic protection system that was designed and constructed (in conjunction with the rehabilitation of several concrete deck spans) to prevent further reinforcement corrosion-related damage to these structures. The purpose of this study was to determine whether this type of new anode is suitable for application in bridge decks, and if any of the three mesh anodes tested in this study excels over the other. It was observed during construction that the installation of these mesh anodes is compatible with the normal construction procedures involved in the rehabilitation of bridge decks. Observations made during the first four years of operation indicated that, among all the different types of anodes tested to date for bridge decks, the three mesh anodes tested in this study were the most effective. These newly tested anodes probably have a considerably longer service life than other anodes that have been tested to date. Furthermore, there was no significant difference in the operational characteristics of the three mesh anodes tested in this study.
Book Synopsis Cathodic Protection of Two Concrete Bridge Decks Using Titanium-mesh Anodes by : Gerardo G. Clemeña
Download or read book Cathodic Protection of Two Concrete Bridge Decks Using Titanium-mesh Anodes written by Gerardo G. Clemeña and published by . This book was released on 1991 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: Expanded titanium mesh with a layer of precious metal oxides sintered around it has recently been introduced to fulfill the need for a durable anode in the cathodic protection (CP) of concrete bridge decks. In addition to being resistant to chemical attack, the titanium mesh (1) provides relatively high electrical redundancy, (2) requires minimal labor to install, and (3) is compatible with concrete overlays. To provide the Virginia Department of Transportation with an opportunity to observe and gain experience with the use of this promising type of anode, plans were formulated to use titanium mesh from three different manufacturers in a CP system as part of the rehabilitation of two existing concrete bridge decks that had salt-induced concrete deterioration.
Book Synopsis Cathodic protection of bridge decks using titanium-mesh anodes by :
Download or read book Cathodic protection of bridge decks using titanium-mesh anodes written by and published by . This book was released on 2000 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Field Inspection Guide for Bridge Deck Cathodic Protection by :
Download or read book Field Inspection Guide for Bridge Deck Cathodic Protection written by and published by . This book was released on 1988 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This report is intended as a guide for inspectors who are unfamiliar with the construction procedures used when installing cathodic protection systems on reinforced concrete bridge decks. The text has been divided into sections in an effort to simplify the report and make it easier to locate desired information. The first four sections provide some basic background information about cathodic protection. Section V discusses a general system installation; each of the major components are discussed to provide a basic understanding and act as a checklist during the installation process. Section VI discusses the various types of systems that have been installed, to date. This is not intended to be an all-inclusive manual. Rather, it is to be used as a guide to help overcome some of the most common problems associated with the installation of cathodic protection systems. It is meant to support and supplement good specifications, not replace them"--Page 1
Book Synopsis Application of Cathodic Prevention in a New Concrete Bridge Deck in Virginia by : Gerardo G. Clemeña
Download or read book Application of Cathodic Prevention in a New Concrete Bridge Deck in Virginia written by Gerardo G. Clemeña and published by . This book was released on 2003 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Corrosion of reinforcement in concrete bridges has been a major factor in limiting the service life of many such structures. As part of a concerted effort to identify cost-effective options for eliminating corrosion of reinforcement, the application of cathodic prevention was tried in a recently constructed concrete bridge deck. The incorporation of an impressed-current cathodic prevention system in a new concrete bridge deck while it was being constructed was made possible by the use of titanium mesh ribbon anodes coated with mixed-metal oxide. The anodes were spaced 32 cm (13 in.) apart and transversely across the entire bridge deck to allow for the trouble-free placement of the concrete. The system has been operating for almost 2 years with no extraordinary problems. A comparison of the long-term cost of this option with those of other options, such as the use of corrosion-resistant clad bars or stainless steel bars, indicated that this option is not economically favorable.
Book Synopsis Cathodic Protection of Concrete Bridges by : Jack E. Bennett
Download or read book Cathodic Protection of Concrete Bridges written by Jack E. Bennett and published by Strategic Highway Research Program (Shrp). This book was released on 1993 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document provides explanation, guidance, and direction concerning cathodic protection of concrete bridge elements to the highway engineer who wants to incorporate cathodic protection in a bridge project. The manual which provides background information on corrosion fundamentals, is divided into 3 parts: design, construction, and operation and maintenance. An appendix provides standard specifications for cathodic protection systems for both decks and substructures. The document is intended to be a useful reference for engineers who design and prepare specifications or who oversee turnkey operations.
Book Synopsis Evaluation of Bridge Deck Cathodic Protection by : Carey L. Younger
Download or read book Evaluation of Bridge Deck Cathodic Protection written by Carey L. Younger and published by . This book was released on 1994 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cathodic Protection Field Trials on Prestressed Concrete Components, Final Report by :
Download or read book Cathodic Protection Field Trials on Prestressed Concrete Components, Final Report written by and published by . This book was released on 1998 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the final report in a study to demonstrate the feasibility of using cathodic protection (CP) on concrete bridge structures containing prestressed steel. The interim report, FHWA-RD-95-032, has more details on the installation of selected CP systems. Past laboratory and test yard studies had indicated that overprotection could result in the evolution of atomic hydrogen and the embrittlement of prestressing steel. Systems utilizing catalyzed titanium mesh, conductive rubber, and arc-sprayed zinc anodes were installed on prestressed pilings and girders of the Howard Frankland Bridge in Tampa, Florida; and systems using flame-sprayed zinc and conductive paint anodes were installed on the soffit of prestressed box beams of the Abbey Road and West 130th Street bridges near Cleveland, Ohio. For most of the components tested, CP was achieved safely and reliably without reaching conditions that could result in embrittlement of prestressed steel.
Book Synopsis Cathodic Protection for a Continuous Box Girder Bridge Deck by : Champak L. Narotam
Download or read book Cathodic Protection for a Continuous Box Girder Bridge Deck written by Champak L. Narotam and published by . This book was released on 1993 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Bridge deck deterioration due to corrosive effect of deicers on reinforcing steel is a major problem facing many agencies. Cathodic protection is one method used to prevent reinforcing steel corrosion. The application of a direct current to the embedded reinforcing steel and a sacrificial anode protects the steel from corrosion. This 1992 project involved placing an Elgard Titanium Anode Mesh Cathodic Protection System on a bridge deck. The anode was fastened to the deck after the Class A repair-work and the overlay was placed using the Iowa Low Slump Dense Concrete System. The system was set up initially at 1 mA/sq ft.
Book Synopsis Cathodic protection for reinforced concrete bridge deck, Big Spring by : Phillip T. Nash
Download or read book Cathodic protection for reinforced concrete bridge deck, Big Spring written by Phillip T. Nash and published by . This book was released on 1994 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: Five individual cathodic protection systems were installed on the U.S. 87 Missouri-Pacific Railroad overpass structure in Big Spring, Texas. The cathodic protection systems were installed in October 1988 as a demonstration project to compare the various systems. Three distributed anode types were used to protect the bridge deck: (1) titanium mesh; (2) conductive polymer; and (3) carbon strand. A hot-sprayed zinc conductive coating anode was applied to sidewalks and a median on the bridge deck, and a conductive paint anode was applied to a bridge bent. Performance data have been collected for each system since installation. The purpose of this study was to assess the performance of the five different cathodic protection systems installed on the Big Spring bridge.
Book Synopsis Cathodic Protection of Steel in Concrete and Masonry by : Paul M. Chess
Download or read book Cathodic Protection of Steel in Concrete and Masonry written by Paul M. Chess and published by CRC Press. This book was released on 2015-02-04 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt: Revised and updated, this second edition of Cathodic Protection of Steel in Concrete and Masonry covers both reinforced concrete and masonry structures, describes in detail the overall design factors involved in cathodic protection (CP), and also provides a theoretical basis for why it works. It refers to the new European standard EN 12696 for cath
Book Synopsis Galvanic Cathodic Protection for Reinforced Concrete Bridge Decks by :
Download or read book Galvanic Cathodic Protection for Reinforced Concrete Bridge Decks written by and published by . This book was released on 1964 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Concrete Bridge Deck Performance by : H. G. Russell
Download or read book Concrete Bridge Deck Performance written by H. G. Russell and published by Transportation Research Board. This book was released on 2004 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.
Author :Ali Akbar Sohanghpurwala Publisher :Transportation Research Board National Research ISBN 13 : Total Pages :60 pages Book Rating :4.3/5 (555 download)
Book Synopsis Cathodic Protection for Life Extension of Existing Reinforced Concrete Bridge Elements by : Ali Akbar Sohanghpurwala
Download or read book Cathodic Protection for Life Extension of Existing Reinforced Concrete Bridge Elements written by Ali Akbar Sohanghpurwala and published by Transportation Research Board National Research. This book was released on 2009 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: At head of title: National Cooperative Highway Research Program.
Book Synopsis Proceedings of the Conference on Cathodic Protection of Reinforced Concrete Bridge Decks, San Antonio, Texas, February 12-13, 1985 by :
Download or read book Proceedings of the Conference on Cathodic Protection of Reinforced Concrete Bridge Decks, San Antonio, Texas, February 12-13, 1985 written by and published by . This book was released on 1985 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: The conference focused on the major problem facing highway and bridge engineers: deterioration of concrete bridge decks caused by corrosion of the reinforcing steel. The conference was aimed primarily at giving bridge owners and engineers an understanding of cathodic protection as the only means to stop corrosion on bridge decks.
Book Synopsis Galvanic Cathodic Protection for Reinforced Concrete Bridge Decks by : David Whiting
Download or read book Galvanic Cathodic Protection for Reinforced Concrete Bridge Decks written by David Whiting and published by Transportation Research Board National Research. This book was released on 1981 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cathodic Protection for Reinforced Concrete Bridge Decks by : John B. Vrable
Download or read book Cathodic Protection for Reinforced Concrete Bridge Decks written by John B. Vrable and published by Transportation Research Board National Research. This book was released on 1977 with total page 1304 pages. Available in PDF, EPUB and Kindle. Book excerpt:
