Sika® FerroGard®-510 Patch

Discrete anode for corrosion mitigation of incipient anode adjacent to concrete repaired areas

Sika® FerroGard®-510 Patch is a zinc based discrete sacrificial anode placed inside a concrete repaired area in reinforced concrete structures which are corroding as a result of chloride ingress and / or carbonation. Sika® FerroGard®-510 Patch anodes are placed along the perimeter of the repair area and fixed to the reinforcement prior to the application of a concrete repair system. The reinforcement outside the repaired area is at greatest corrosion risk owing to the passive condition of the reinforcement within the repaired area. Sika® FerroGard®-510 Patch anodes corrode preferentially to the surrounding reinforcement offering protection against incipient corrosion damage. In addition, standard repair mortars, bonding primers and reinforcement corrosion protection coatings can be used as Sika® FerroGard®-510 Patch is placed in the parent concrete and not within the repair mortar. Suitable for use in hot and tropical climatic conditions.

  • Sika® FerroGard®-510 Patch anodes corrode preferentially to the surrounding reinforcement, protecting it from further corrosion damage
  • Protects against incipient anode effect outside of repaired area
  • No long-term maintenance costs 
  • Strengthens passive film on reinforcement
  • No rapid dissolution of activating components
  • Quick installation—no additional concrete break out
  • Bonding primers for concrete and reinforcement corrosion protection coatings can be used
  • High resistivity repair mortars can be used
  • Performance can be monitored
  • Cost effective corrosion control solution