The Galvanode VP embedded galvanic anode unit utilizes an innovative zinc anode core design surrounded by an enhanced formulated cement-based mortar to provide corrosion mitigation to reinforced concrete structures. The anode units are halide activated (Type H) to keep the zinc active over the life of the anode. Once installed, the zinc anode core corrodes preferentially to the surrounding rebar, thereby mitigating corrosion in adjacent reinforcing steel.
Applications:
- Mitigates incipient anode formation (halo effect) in patch repair
- Bridge widening and other structure modifications
- Slab replacements, expansion joint repairs and other interfaces between new and existing concrete
- Repair of epoxy-coated rebar
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Features and Benefits
- Economical – low cost solution for corrosion mitigation of chloride contaminated and carbonated structures. Provides protection where it is needed the most, at the interface of the repair and the remaining contaminated concrete.
- Type H anode – halide-activated to maintain activity of zinc.
- Performance – patented in 2000, Galvanode VP is the original humectant-activated embedded galvanic anode. Typical current output of 0.5 to 1.0 mA after 120 days depending on steel density and environmental conditions.
- User friendly – quick and easy installation, Galvanode VP anode units incorporate extra long tie wires or the plastic BarFit™ spacer design to assist with secure anode placement and to ensure the anode is kept a minimum distance from the reinforcing steel.
- Dependable steel connection – utilizes steel tie wires to provide anode-to-steel connection which does not deteriorate over time. Does not use galvanized wires that may be subject to dissimilar metal corrosion over time.
- Corrosion inhibitors – Galvanode VP contains two different materials that inhibit corrosion of reinforcing steel.
- Low maintenance – requires no external power source or system monitoring.
- Long lasting – 10 to 20 year service life* reduces the need for future repairs.
*As with all galvanic protection systems, service life is dependent upon a number
of factors including reinforcing steel density, concrete conductivity, chloride
concentration, humidity and anode spacing. |
