Product Data Sheet Safety Data Sheet Show all documents
Sika® FerroGard®-901 S

Sika® FerroGard®-901 S

Corrosion inhibiting concrete admixture

Sika® FerroGard®-901 S is a liquid concrete admixture based on Sika® FerroGard® technology for use in reinforced concrete and mortar. It acts as a corrosion inhibitor for the steel reinforcement. By using Sika® FerroGard®-901 S, the life expectancy and durability of reinforced concrete can be substantially increased.

Sika® FerroGard®-901 S reduces both the anodic and cathodic reactions of the electrochemical corrosion process. The product forms a protective layer on the steel surface which delays the onset of corrosion and also reduces the corrosion rate.  Advantages include:
  • Corrosion protection for embedded reinforcing steel, especially from chloride attack
  • Protection from the destructive influences of reinforcement corrosion
  • No negative influences on the properties of both the fresh and the hardened concrete
Sika® FerroGard®-901 S is neutral to hydrogen embrittlement of prestressed steel i.e. it neither enhances nor limits hydrogen embrittlement of prestressing steel.
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Product Data Sheet Safety Data Sheet Show all documents

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Usage

Sika® FerroGard®-901 S is designed for reinforced concrete at risk of corrosion. It specifically provides protection from chloride-induced corrosion. Typical applications:
  • Concrete roads
  • Bridges
  • Tunnels
  • Retaining walls
  • Industrial plants
  • Multi storey car parks
 

Advantages

Sika® FerroGard®-901 S reduces both the anodic and cathodic reactions of the electrochemical corrosion process. The product forms a protective layer on the steel surface which delays the onset of corrosion and also reduces the corrosion rate.  Advantages include:
  • Corrosion protection for embedded reinforcing steel, especially from chloride attack
  • Protection from the destructive influences of reinforcement corrosion
  • No negative influences on the properties of both the fresh and the hardened concrete
Sika® FerroGard®-901 S is neutral to hydrogen embrittlement of prestressed steel i.e. it neither enhances nor limits hydrogen embrittlement of prestressing steel.

Packaging

1000 L IBC

Colour

Green liquid

Product Details

Product Information

Chemical Base

Amino alcohols

Shelf Life

12 months shelf life from date of production if stored properly in undamaged, unopened, original sealed packaging.

Storage Conditions

Storage at temperatures between +5°C and +30 °C. Protect from direct sun-light, frost and contamination.

Density

1.05 kg/L

pH-Value

9.5 at +20 °C

Total Chloride Ion Content

<0.10 % w/w (chloride free)

Equivalent Sodium Oxide

<0.55 % w/w (alkali content)

<0.10 % w/w (SO3 sulphate content)
Technical Information

Concreting guidance

The standard rules of good concreting practice, concerning production and placing, are to be followed.
Laboratory trials shall be carried out before concreting on site, especially when using a new mix design or producing new concrete components.
Fresh concrete must be cured properly and curing applied as early as possible.

Specific Advice

Sika® FerroGard®-901 S has been shown to reduce the Integral Corrosion Current at propagation stage by a factor of 2.9 at 3% dosage by weight of cement, when compared to a reference concrete at 400 days.

Application

Application Information

Dispensing

Sika® FerroGard®-901 S is mixed with the gauging water or added at the same time into the concrete mixer. It may also be added to the concrete mixer at the point of discharge. In this case, an additional mixing time of at least 1 minute per m3 concrete must be observed.
The quantity of Sika® FerroGard®-901 S in the mix design should be taken into consideration when determining the quantity of water for a specific w/c-ratio.

Compatibility

Sika® FerroGard®-901 S can be combined with most other Sika products; specific compatibility information available on request.
Consumption

Recommended Dosage

12 kg/m3

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