Menu
Search
Filters
Close
Menu

Save 20% on select titles with code HIDDEN24 - Shop The Sale Now

Performance of Distributed Galvanic Anode Systems on Bridges in the United States

Picture for Performance of Distributed Galvanic Anode Systems on Bridges in the United States
Available for download

Embedded galvanic anodes designed to protect reinforcing steel in chloride-contaminated concrete adjacent to concrete “patch” repairs were developed in the late 1990’s. The original concrete anode was puck-shaped and consisted of high purity zinc encased in a mortar formulated with high porosity and lithium hydroxide to maintain a pH greater than 14 to keep the zinc active over the life of the anode. This approach of a high pH mortar around the zinc to prevent anode passivation is commonly referred to as alkali-activation.

Product Number: 51323-19172-SG
Author: J. Chris Ball, Matt Miltenberger, Brian Pailes
Publication Date: 2023
$0.00
$20.00
$20.00

Over time, concrete bridge structures exposed to de-icing chemicals and marine environments will see initiation of reinforcing steel corrosion. Visible signs of active corrosion such as cracking, rust staining, spalling, and delamination of concrete cover can occur in as little as 5 to 10 years after activation of corrosion. Left unchecked, chloride-induced corrosion of reinforced concrete structures will lead to an increased need for maintenance and repair and eventual structural issues. Many severely corroded structures have been replaced at great expense and with significant disruption to the public. However, with the proper repair strategy they can be properly rehabilitated, strengthened if necessary, and the service life can be economically extended for in a more sustainable manner than replacement.
Distributed galvanic anodes applied to existing corroding abutments, columns and beams are an effective, low maintenance galvanic cathodic protection rehabilitation option. Performance data collected from several monitored field applications indicate that distributed galvanic anode systems have the ability to deliver effective cathodic protection for 20+ years, providing an efficient, sustainable, and effective service life extension for these structures.

Over time, concrete bridge structures exposed to de-icing chemicals and marine environments will see initiation of reinforcing steel corrosion. Visible signs of active corrosion such as cracking, rust staining, spalling, and delamination of concrete cover can occur in as little as 5 to 10 years after activation of corrosion. Left unchecked, chloride-induced corrosion of reinforced concrete structures will lead to an increased need for maintenance and repair and eventual structural issues. Many severely corroded structures have been replaced at great expense and with significant disruption to the public. However, with the proper repair strategy they can be properly rehabilitated, strengthened if necessary, and the service life can be economically extended for in a more sustainable manner than replacement.
Distributed galvanic anodes applied to existing corroding abutments, columns and beams are an effective, low maintenance galvanic cathodic protection rehabilitation option. Performance data collected from several monitored field applications indicate that distributed galvanic anode systems have the ability to deliver effective cathodic protection for 20+ years, providing an efficient, sustainable, and effective service life extension for these structures.

Product tags
Also Purchased
Picture for Tank Bottom Protection Utilizing anode grid system vs. anode in the periphery
Available for download

51312-01519-Tank Bottom Protection Utilizing anode grid system vs. anode in the periphery

Product Number: 51312-01519-SG
ISBN: 01519 2012 CP
Author: Hasan Sabri
Publication Date: 2012
$20.00
Picture for 10025 Remoteness of Impressed Current Anode Ground Beds
Available for download

10025 Remoteness of Impressed Current Anode Ground Beds

Product Number: 51300-10025-SG
ISBN: 10025 2010 CP
Author: R P Nagar
Publication Date: 2010
$20.00

This paper contains a review of commonly used practices and presents a generalized technique for the calculation of earth potentials for the determination of remoteness of impressed current anode ground beds. The intent is to facilitate proper design and evaluation of anode ground beds of impressed current cathodic protection system for cross-country pipelines.
Picture for 08146 Pipeline Corrosion Monitoring by Fiber Optic Distributed Strain and Temperature Sensors
Available for download

08146 Pipeline Corrosion Monitoring by Fiber Optic Distributed Strain and Temperature Sensors

Product Number: 51300-08146-SG
ISBN: 08146 2008 CP
Author: Lufan Zou, Mr. Omur Sezerman, and Winston Revie
Publication Date: 2008
$20.00
Categories
Industry
Recently viewed
Popular tags
View all

Association for Materials Protection and Performance

© AMPP All Rights Reserved.
Membership Terms of Content Use
Contact Customer Support