01
Jun
2016

Concrete Protection Jackets for Concrete and Steel Piles

by Chris Ball June 1st, 2016 in News
Galvanic Jacketing of Bridge Columns

Concrete piles in a marine environment are subject to chloride-induced corrosion from exposure to the seawater and airborne chlorides.  A commonly employed option to repair and extend the life of corroding concrete piles is the use of cathodic protection jackets.  

CP Jackets are available using impressed current cathodic protection from an external power supply, galvanic protection with bare zinc anodes, and galvanic protection using self-activated anodes. As detailed in this recent Aspire Magazine article, each jacket type has its advantages.  For example, impressed current jackets may be used when large groups of piles are protected and the owner is committed to long term system monitoring.  On the other hand, self-activated anodes do not require any direct saltwater exposure whatsoever as they function well in atmospheric (dry) zones and brackish or freshwater exposure conditions.  

VCS provides cathodic protection design, quality control oversight and commissioning services for cathodic protection pile jackets through its NACE certified Cathodic Protection Specialists (CP4) and NACE certified Cathodic Protection Technicians (CP2).  For more information contact VCS at info@vcservices.com.