Product Data Sheet Safety Data Sheet Show all documents
Sikament® NN KH

Sikament® NN KH

HIGH RANGE WATER-REDUCING CONCRETE ADMIXTURE

Sikament® NN KH is a highly effective dual action liquid as superplasticizer for the production of flowable concrete and as a substantial water-reducing agent for promoting high early and ultimate strength.

As a superplasticizer:
  •  Workability is greatly improved.
  • Increased placeability in slender components with packed reinforcements.
  • Decreases the amount of vibration.
  • Normal set without retardation.
  • Significantly reduces the risk of segregation
As a water-reducer:
  • Allow substantial cement reduction compared to plain concrete.
  • Increase water impermeability of concrete.
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Product Data Sheet Safety Data Sheet Show all documents

Usage

Sikament® NN KH is used as a superplasticizer in the production of flowable concrete such as in:
  • Slabs and foundations.
  • Walls, columns and piers.
  • Slender components with densely packed reinforcements
Sikament® NN KH is also used as a water-reducing agent leading to high early strength concrete such as:
  • Precast and pre-stressed concrete elements
  • Bridges and cantilever structure.
 

Advantages

As a superplasticizer:
  •  Workability is greatly improved.
  • Increased placeability in slender components with packed reinforcements.
  • Decreases the amount of vibration.
  • Normal set without retardation.
  • Significantly reduces the risk of segregation
As a water-reducer:
  • Allow substantial cement reduction compared to plain concrete.
  • Increase water impermeability of concrete.

Packaging

25L/pail ; 200L/drum ; 1000L/IBC

Colour

Liquid / brown

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

Sikament® NN KH complies with ASTM C494 Type F.
Product Information

Composition

Napthalene Formaldehyde Sulphonate

Shelf life

Min. 1 year if stored properly in original unopened packaging.

Storage conditions

Dry, cool, shaded place (between 5 and 40 celcius degrees).

Specific Gravity

1.190 -1.220.

pH-Value

8 - 10.5

Total Chloride Ion Content

Nil
Technical Information

Concreting Guidance

The standard rules of good concreting practice, concerning production and placing must be followed.
Laboratory trials must 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.

Concrete Mix Design

When using Sikament® NN KH, a suitable mix design must be calculated. The local material sources used within the mix design must always be trialled and approved for suitability before commencement of the project.

Application

Application Information

Compatibility

Sikament® NN KH may be combined with many other Sika products. Possible to combine with all Sikament, Sika Aer, Sika Pump, Sikacrete PP1, but must be added separately to the mix and not pre-mixed prior addition.
Sikament® NN KH is compatible with all Portland cement including sulfate resistant cement.

Dispensing

Sikament® NN KH is either added to the gauging water prior to its addition to the dry concrete mix or added separately to wetted concrete mix, further
mixing should take place for at least 1 minute per m³.
When added directly to the freshly mixed concrete, the plasticizing effect is more pronounced.
For addition at job site, Sikament® NN KH is added to the concrete immediately prior to discharge and after further mixing has taken place for three minutes.
Consumption

Recommended Dosage

0.60 – 2.00 ltr per 100 kg of cement.
Typical dosage: 0.80 – 1.20 ltr. Per 100kg of cement.

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