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SIKA FERROGARD 901 S CORROSION INHIBITING ADMIXTURE

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$353.09
 

Details

Sika® FerroGard®-901 S is a liquid concrete admixture formulated to protect embedded reinforcing steel from corrosion, and to provide an effective means for extending the service life of concrete structures.

How it Works:

In sound concrete, steel reinforcement is protected by the highly alkaline environment which deposits a passivating layer of iron oxides around the steel. This passivating layer can be broken down by a number of destructive mechanisms, including carbonation and chloride penetration. Once the steel loses its protective layer, corrosion can begin to occur. Steel corrosion is an electrochemical process consisting of two partial reactions, one at the cathode and one at the anode. Sika® FerroGard®-901 S is an active, dual purpose inhibitor containing a combination of aminoaclohols, and organic and inorganic inhibitors. This protects both the anodic and cathodic parts of the corrosion cell. Due to its high vapor pressure, Sika® FerroGard®-901 S penetrates through concrete to the steel reinforcement, where it is absorbed onto the surface. Sika® FerroGard®-901 S forms a continuous protective film around the steel presenting a physical barrier to chlorides and other deleterious substances. Because of its high affinity to steel, Sika® FerroGard®-901 S is also able to displace chloride ions from the metal surface to protect concrete from chloride induced corrosion.

Applications

Sika® FerroGard®-901 S is recommended for all steel-reinforced concrete exposed to corrosive environments:

  • Steel-reinforced concrete bridges and highways exposed to deicing salts
  • Concrete in or near marine environments 
  • Parking garages
  • Piers, piles, and concrete dock structures

Benefits

Sika® FerroGard®-901 S offers owners, specifiers, port authorities, DOT's, and engineers a new technology in corrosion inhibition that is easily added to ready-mix or precast concrete. This dual action inhibitor dramatically delays the initiation of corrosion and greatly reduces the overall corrosion activity. Sika® FerroGard®-901 S:

  • Extends the service life of concrete structures and reduces maintenance costs.
  • Provides corrosion inhibition in the presence of varying chloride concentrations, even high concentration of deicing or marine salts.
  • Does not affect the rheological properties of plastic concrete; no changes in mix design or placement operations are required.
  • Does not affect the propert

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