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Sika® Stabilizer-500 VCC

Sika® Stabilizer-500 VCC

ADMIXTURE FOR CONCRETE CONTAINING AGGREGATES WITH IMPURITIES

Sika® Stabilizer-500 VCC is a unique concrete admixture, specially formulated to improve the plastic and hardened properties of concrete containing fine aggregates with Variable Contaminant Content. Sika® Stabilizer-500 VCC can reduce the impact of deleterious substances found in both natural and manufactured sands. Sika® Stabilizer-500 VCC can help control water demands and lower cement contents whilst reducing variation in plastic properties.

  • Reduces variation in consistence control.
  • Improved cohesion properties.
  • Improved rheology.
  • Reduces the effect of clay contamination.
  • Reduces the effect of ultra-fine particles in sand (<63μm)
  • Potential to reduce cement contents in problem packages.
  • Potential to utilise secondary aggregate sources.
  • Improved durability.
  • Reduced segregation and bleeding.
  • Reduced drying shrinkage.
  • Reduced mix costs.
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Product Data Sheet Show all documents

Usage

  • Sika® Stabilizer-500 VCC is suitable for the production of both ready mixed and precast concrete including but not limited to:
  • Conventional concrete
  • Pumpable concrete
  • High Performance concrete
  • Self Compacting Concrete (SCC)
  • Slip-Form concrete
  • Production of concrete using sands containing contaminants such as clays and other ultra-fine particles.
  • Applications that require high quality concrete
  • Suitable for use across a broad range of consistence classes from S2 to SF2
 

Advantages

  • Reduces variation in consistence control.
  • Improved cohesion properties.
  • Improved rheology.
  • Reduces the effect of clay contamination.
  • Reduces the effect of ultra-fine particles in sand (<63μm)
  • Potential to reduce cement contents in problem packages.
  • Potential to utilise secondary aggregate sources.
  • Improved durability.
  • Reduced segregation and bleeding.
  • Reduced drying shrinkage.
  • Reduced mix costs.

Packaging

20 Litre, 200 Litre and 1000 Litre IBC.

Colour

Brown liquid

Product Details

Sustainability / Certifications / Approvals

APPROVALS / STANDARDS

Conforms to the requirements of BS EN 934-2 Table 2
DoC 44599661, certified by Factory Production Control Body 0120 and provided with the UKCA mark
 
Product Information

Chemical Base

Modified Polycarboxylate Ether blend

Shelf Life

12 months from date of production if stored properly in undamaged containers.

Storage Conditions

Store in sealed containers at temperatures between +5°C and +25°C.
Protect from direct sunlight and frost.

Specific gravity

1.15 kg/L

Total Chloride Ion Content

<0.1 % (chloride free)

Equivalent Sodium Oxide

<0.60 % (alkali content)
Technical Information

Specific Advice

Batching procedure is critical to gain the most benefit from Sika® Stabilizer-500 VCC. It must be incorporated early in the mixing process and allowed to adsorb onto the clay/fine particles before the addition of any subsequent admixtures. Addition of the conventional admixture at the same time as the Sika® Stabilizer-500 VCC will lead to reduced benefits.

Application

Application Information

Dispensing

Sika® Stabilizer-500 VCC should be dispensed through suitable calibrated dosing equipment.

Compatibility

Sika® Stabilizer-500 VCC is compatible with other Sika admixtures and all common cement types.  For specific compatibility advice, please contact our Technical Services department.
Consumption

Recommended Dosage

Dosage will vary depending upon specific local materials but is expected to be in the range 0.3 to 1.0 % by weight of cement.
Application steps

APPLICATION INSTRUCTIONS

  • 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 soon as possible.
 

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