Sika® FerroGard® CI 220
Dual Mechanism Corrosion Inhibiting Admixture
Sika® FerroGard® CI 220 is a dual mechanism, corrosion-inhibiting admixture formulated to inhibit the corrosion of steel in reinforced concrete.
Sika® FerroGard® CI 220 functions by inhibiting corrosion at its critical points. It reacts with the cement hydration process to form a hydrophobic pore-blocking ingredient, that lines the pores of the concrete matrix and reduces capillary suction slowing the rate at which chlorides, gases, and moisture enter the concrete. Sika® FerroGard® CI 220 provides additional protection by adsorbing onto the reinforcing steel to form a corrosion-resistant protective film. This protective film slows the corrosion process by preventing chlorides from reacting with the reinforcing steel.
- Extends the service life of reinforced concrete structures
- Reduces the rate at which chlorides, gases, and moisture enter the concrete
- Effective in cracked concrete where the elements that cause corrosion have direct access to the reinforcing steel
- Increases sulfate resistance
- Normal set product that can be easily used in elevated temperatures
- Does not significantly affect the plastic properties of concrete
- Does not significantly affect the concrete temperature development
- Does not significantly affect the final hardened concrete properties