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Sika® Stabilizer-4 R

Sika® Stabilizer-4 R

Viscosity Modifying Concrete Admixture

Sika® Stabilizer-4 R is a liquid admixture for concrete which is used to modify the viscosity and eliminate segregation of concrete.

Sika® Stabilizer-4 R provides the following characteristics and advantages in the fresh concrete properties:
  • Strongly increased internal cohesion of the mix
  • Lower sensitivity against variations in the constituent materials
  • Homogeneous mix
  • Less bleeding
  • Lower tendency to segregation
Sika® Stabilizer-4 R assists the concrete placing in the following ways:
  • Reduction of compaction defects
  • Smoother concrete surfaces
  • Improved pumpability
  • Equipment is preserved and its service life is prolonged
Sika® Stabilizer-4 R does not contain chlorides or any other ingredients which promote the corrosion of steel. It is therefore suitable for use in reinforced and prestressed concrete structures.
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Product Data Sheet Show all documents

Usage

Sika® Stabilizer-4 R has been specially developed for Self Compacting Concrete (SCC) and can also be used for other concretes, where improved stability during transportation and placing is required. Sika® Stabilizer-4 R improves the fresh concrete properties of mixes with varying fines content, low cement content or concrete mixes with unfavourable grading curves.
Sika® Stabilizer-4 R can be used for:
  • Self Compacting Concrete (SCC)
  • Shotcrete applications
  • Pumped concrete
  • Low fines content concrete
 

Advantages

Sika® Stabilizer-4 R provides the following characteristics and advantages in the fresh concrete properties:
  • Strongly increased internal cohesion of the mix
  • Lower sensitivity against variations in the constituent materials
  • Homogeneous mix
  • Less bleeding
  • Lower tendency to segregation
Sika® Stabilizer-4 R assists the concrete placing in the following ways:
  • Reduction of compaction defects
  • Smoother concrete surfaces
  • Improved pumpability
  • Equipment is preserved and its service life is prolonged
Sika® Stabilizer-4 R does not contain chlorides or any other ingredients which promote the corrosion of steel. It is therefore suitable for use in reinforced and prestressed concrete structures.

Packaging

20 litre drums, 1000 litre IBC

Colour

Blue liquid

Product Details

Product Information

Chemical Base

Carbohydrate Complex

Shelf Life

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

Storage Conditions

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

Density

~1.03 kg/l

pH-Value

8.0 +/- 1.0

Total Chloride Ion Content

<0.10% w/w (chloride free)
System information

Compatibility

Sika®Admixtures: Compatible with all Viscocrete High Range Water Reducers/Superplasticisers
Compatibility information available on request
Cements: All cement combinations
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

Effect on Setting, Extension to normal setting
Effect of Overdosing, Retardation and increased cohesion

Application

Application Information

Compatibility

Sika® Stabilizer-4 R may be combined with many other Sika® products. Combination with other admixtures may affect the amount of air entrained into the concrete.
Note:
Always conduct trials before combining products in specific mixes and contact Sika® technical service for more information and advice.

Dispensing

Sika® Stabilizer-4 R is mixed with the gauging water or added at the same time into the concrete mixer. It may also be added to the concrete in the transit mixer at the point of discharge. In this case, an additional mixing time of at least 1 minute per m3 concrete must be observed. Before discharging it, check the concrete visually for uniform consistency.
The quantity of Sika® Stabilizer-4 R in the mix design should be taken into consideration when determining the quantity of water for a specific w/c-ratio.

Restrictions

When using Sika® Stabilizer-4 R a suitable mix design has to be produced and the local material sources shall always be trialled.
Overdosing may result in retardation. For optimum dosage trials are recommended.
Sika® Stabilizer-4 R shall not be added to dry cement.
Consumption

Recommended Dosage

0.1 - 1.0% by weight of cement

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