Author: United States. General Accounting OfficePublisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 10
Book Description
Examines the efforts of the Federal Highway Administration to promote cathodic protection of bridge decks.
Use of Cathodic Protection to Combat Corrosion of Bridge Decks
Author: United States. General Accounting OfficePublisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 10
Book Description
Examines the efforts of the Federal Highway Administration to promote cathodic protection of bridge decks.
Cathodic Protection for Reinforced Concrete Bridge Decks
Author: Donald R. Jackson (P.E.)Publisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 59
Book Description
"Bridge decks are expected to proved relatively maintenance-free service for approximately 40 years. It has been found, however, that some unprotected bridge decks require major repairs within 5 to 10 years, and often must be replaced after 15 years of service. This premature deterioration is frequently the direct result of an accelerated corrosion process on the reinforcing steel caused by the intrusion of deicing chemicals into bridge deck surfaces. A number of bridges on the Federal-aid system do not have a protective system on their decks. If these bridge decks were protected now, significant savings could be realized by avoiding more expensive repairs later. One positive method of stopping the corrosion process in reinforced concrete bridge decks is cathodic protection. Cathodic protection (CP) has been used for many ears to control the corrosion of buried pipelines and structures in saltwater environments. During the past 8 years, the Federal Highway Administration (FHWA), through its Demonstration Projects Division, has promoted the use of this technology as a means of preserving existing unprotected reinforced concrete bridge decks. Assistance has been provided to requesting highway agencies for the construction and evaluation of 22 cathodic installations in conjunction with Demonstration Project No. 34, Cathodic Protection for Reinforced Concrete Bridge Decks. This report provides a summary of the information furnished by participating highway agencies; it includes project selection criteria, design considerations, construction procedures and problems, and performance criteria and results"--P. i.
Cathodic Protection of Concrete Bridges
Author: Jack E. BennettPublisher: Strategic Highway Research Program (Shrp)
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 316
Book Description
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.
Cathodic Protection for Reinforced Concrete Bridge Decks
Author: John B. VrablePublisher: Transportation Research Board National Research
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 1304
Book Description
Proceedings of the Conference on Cathodic Protection of Reinforced Concrete Bridge Decks, San Antonio, Texas, February 12-13, 1985
Author: Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 294
Book Description
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.
A Bibliography on the Corrosion and Protection of Steel in Concrete
Author: E. EscalantePublisher:
ISBN:
Category : Bridges, Concrete
Languages : en
Pages : 32
Book Description
Corrosion and Cathodic Protection of Steel Reinforced Concrete Bridge Decks
Author: N. Dennis BurkePublisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 94
Book Description
Application of Cathodic Prevention in a New Concrete Bridge Deck in Virginia
Author: Gerardo G. ClemeñaPublisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 46
Book Description
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.
Evaluation of Bridge Deck Cathodic Protection
Author: Carey L. YoungerPublisher:
ISBN:
Category : Concrete bridges
Languages : en
Pages : 52
Book Description
Galvanic Cathodic Protection for Reinforced Concrete Bridge Decks
Author: David WhitingPublisher: Transportation Research Board National Research
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 76
Book Description