Product Data Sheet Show all documents

Sika® ViscoCrete®-8170 VN

ULTRA HIGH RANGE WATER REDUCER WITH HARDENING ACCELERATION EFFECT CONCRETE ADMIXTURE

Sika® ViscoCrete®-8170 VN is a 3rd generation polymer based high performance superplasticizer with hardening acceleration effect for concrete.
Sika® ViscoCrete®-8170 VN meets requrement of ASTM C494 type F

Sika® ViscoCrete®-8170 VN combines different modes of actions. By adsorption on the surface of the fines and keeping them apart while the hydration is in progress, Sika® ViscoCrete®-8170 VN effects the following concrete properties:
  • Extremely high water reduction (enhanced impermeability & strength of concrete produced)
  • Faster development of early strength. Can reduce the time of steam curing process for getting early strength
  • Workability can be maintained up to 90 minutes (depending on cement type, temperature and mix design)
  • Improved creep and shrinkage resistance characteristics
Product Data Sheet Show all documents

Usage

Sika® ViscoCrete®-8170 VN is mainly suitable for the manufacture of concrete in precast factories and other in-situ precast concrete elements.
Sika® ViscoCrete®-8170 VN is used for the following types of concrete:
  • High-strength/High performance concrete spun pile in precast industry.
  • Concrete with extreme water reduction.
  • Soft consistency concrete with extended working time, suitable for both small and large spun piles.  

Advantages

Sika® ViscoCrete®-8170 VN combines different modes of actions. By adsorption on the surface of the fines and keeping them apart while the hydration is in progress, Sika® ViscoCrete®-8170 VN effects the following concrete properties:
  • Extremely high water reduction (enhanced impermeability & strength of concrete produced)
  • Faster development of early strength. Can reduce the time of steam curing process for getting early strength
  • Workability can be maintained up to 90 minutes (depending on cement type, temperature and mix design)
  • Improved creep and shrinkage resistance characteristics

Packaging

200/1000 litres

Colour

Liquid/ brown colour

Product Details

Product Information

Chemical base

Modified Poly carboxylate in water

Shelf life

12 months if stored properly in original unopened packaging.

Storage conditions

Stored in dry conditions, protected from direct sunlight and at temperatures between +5 °C and +30 °C

Density

1.076 – 1.116 kg/L (at 20°C)

pH-Value

3.50 – 5.50 (at 25°C)
Technical Information

Concreting Guidance

Concrete placing: With the use of Sika® ViscoCrete®-8170 VN, concrete of highest quality is being produced, however state of the art concrete technology, such as mixing, placing vibrating and curing must be respected and applied
Curing: Effective measures for concrete curing must be followed

Specific Advice

Sika® ViscoCrete®-8170 VN is added to the gauging water prior to its addition to the dry mix or added separately to the wetted concrete mix.
For optimum utilization of the ultra-high range water reducer we recommend a minimum wet mixing time of 60 seconds.
When adding the balance of the batching water to adjust concrete consistency this should be done after a minimum of 2/3 of the wet mixing time to avoid surplus water in the concrete.

Application

Application Information

Compatibility

Sika® ViscoCrete®-8170 VN may be combined with all Sikament, Sika® Aer, Sika®Pump, Sikacrete® PP1 products, but must be added separately to the mix and not pre-mixed prior its addition
Sika® ViscoCrete®-8170 VN is compatible with all Portland Cement types
Consumption

Recommended Dosage

0.5 – 2.0 ltr per 100 kg of cement/binder
Typical dosage

For normal concrete: 0.6 - 0.9 ltr per 100 kg of cement/binder

For spun pile: 0.8 – 1.2 ltr per 100 kg of cement/binder

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