ribbon anode on rebar
A steel-reinforced concrete structure is strong, reliable and can withstand intense environmental exposure. However, moisture, chlorides, carbon dioxide gas, and other aggressive agents can, over time, penetrate concrete, causing corrosion (rust) of the reinforcement bars. When rust on the rebar expands, it causes pressure that cracks and weakens the concrete infrastructure. The concrete is then compromised, which is why corrosion prevention of concrete is vital- to ensure the longevity of all steel-reinforced concrete.
ELGARD® mixed metal oxide (MMO) coating on titanium anodes is the key to using cathodic protection (CP) to prevent the corrosion of steel-reinforced concrete structures. Since the mid-1980s, ELGARD® MMO anodes have been used to prevent corrosion and increase the life of:
- buildings, bridges, tunnels, stadiums, parking garages,
- new and historic monuments
- power generation cooling towers, marine structures, dolphins
- piers, wharves, viaducts, seawater intakes
