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Vector Corrosion Services

Galvashield® CC - Galvanic anode for Controlling Corrosion in Existing Reinforced Structures

Galvashield® CC embedded galvanic anodes are installed into holes drilled into existing concrete structures and connected to the reinforcing steel to proactively mitigate active corrosion. The anode units are alkali-activated with an internal pH of 14 or greater to keep the zinc active over the life of the anode. Once installed, the zinc anode corrodes preferentially to the adjacent reinforcing steel to provide galvanic corrosion control.

Galvashield CC anodes are classified as Type 2AC Anodes – alkali-activated embedded galvanic anodes for controlling corrosion in sound concrete structures. A typical use is to target high corrosion risk areas such “hot spots” as determined by chloride testing (e.g. ASTM 1218, AASHTO T260, BS 1881) corrosion potential surveys (ASTM C876) or low concrete cover.

There are two standard sizes of Galvashield CC embedded galvanic anodes, Galvashield CC2 and Galvashield CC4. The standard anode spacing tables are based on achieving a 10-30 year anode life. The anode size and spacing is adjusted to account for reinforcing steel density and corrosion risk as indicated by chloride content at the level of the reinforcing steel. Custom Galvashield CC anodes can be manufactured for specific client needs.

Unit TypeUnit Size Diameter
x Length
Galvashield® CC2 32 x 75 mm
(1.3 x 3 in.)
Galvashield® CC4 36 x 100 mm
(1.4 x 4 in.)
Galvashield® Custom Custom Sizes Available
Minimum hole dimension is 1 ¼ in. (30 mm) deeper than the anode length and 15/16 in. (6 mm) wider than the anode diameter.

Galvashield CC anodes can be individually connected to the reinforcing steel or connected to a header wire with up to 20 anodes per string (see illustration). The header wire is connected to the reinforcing steel in two locations for redundancy.

Applications:

  • Apartment and Condominium Balcony Repair
  • Concrete Column and beam repair
  • Bridge deck corrosion
  • Protecting Beam Seats and Abutments
  • Parking garage decks, columns and beams
  • Piers and wharfs in a marine environment
  • Prestressed concrete corrosion
  • Post-tensioning anchor protection

  • Port of Portland - Galvashield CC Installation
  • Installation of Galvashield CC galvanic anodes for concrete repair.
  • Installation of Galvashield CC galvanic anodes for concrete repair.
  • Installation of Galvashield CC galvanic anodes for concrete repair & corrosion control.
  • Installation of Galvashield CC galvanic anodes for concrete repair & corrosion control.
  • Installation of Galvashield CC galvanic anodes for concrete repair & corrosion control.
  • Installation of Galvashield CC galvanic anodes for concrete repair & corrosion control.
  • Installation of Galvashield CC galvanic anodes for concrete repair & corrosion control.
  • Installation of Galvashield CC galvanic anodes for concrete repair & corrosion control.
  • Installation of Galvashield CC galvanic anodes for concrete repair & corrosion control.
  • Installation of Galvashield CC galvanic anodes for concrete repair & corrosion control.
  • Installation of Galvashield CC galvanic anodes for concrete repair & corrosion control.
  • Installation of Galvashield CC galvanic anodes for concrete repair & corrosion control.
  • Installation of Galvashield CC galvanic anodes for concrete repair & corrosion control.
  • Port of Portland - Galvashield CC Installation
  • Installation of Galvashield CC galvanic anodes for concrete repair.
  • Concrete Corrosion control using Galvashield CC embedded anodes for concrete repair.
  • Concrete Corrosion control using Galvashield CC embedded anodes for concrete repair.
  • Galvashield CC Galvanic Anode for Concrete Repair
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