Product Data Sheet Safety Data Sheet Show all documents

Sikament® NN (W)

High Range Water-Reducing Concrete Admixture

Sikament® NN (W) is a highly effective water-reducing agent and superplasticizer based on napthalene technology for promoting accelerated hardening and free flowing concrete.

Sikament® NN (W) provides the following properties :
As a Superplasticizer
  • Substantial improvement in workability without increased water or the risk of segregation
  • Normal set without retardation, even when over dosed
  • Improved density and surface finish
As a Water Reducer
  • Up to 35% water reduction
  • 40% increase in 28 days strengths
  • High strengths after 8 hours
  • Increased frost-resistance
  • Increased water tightness
Product Data Sheet Safety Data Sheet Show all documents

Usage

As a superplasticizer for flow concrete in :
  • Floor slabs
  • Foundations
  • Slender components with packed reinforcement
  • Walls and columns
  • Beams and ceilings

As a water reducer for the manufacture of :
  • Pre-cast concrete elements
  • Bridges and cantilever structures
  • Pre-stressed concrete
  • Area of concrete where formwork must be removed quickly or early loading applied
 

Advantages

Sikament® NN (W) provides the following properties :
As a Superplasticizer
  • Substantial improvement in workability without increased water or the risk of segregation
  • Normal set without retardation, even when over dosed
  • Improved density and surface finish
As a Water Reducer
  • Up to 35% water reduction
  • 40% increase in 28 days strengths
  • High strengths after 8 hours
  • Increased frost-resistance
  • Increased water tightness

Packaging

200 L/ drum
1,000 L/ tote or bulk

Colour

Brown Liquid

Product Details

Sustainability / Certifications / Approvals

CERTIFICATES AND TEST REPORTS

Complies with ASTM C 494-81 Type A & F
Product Information

Composition

Napthalene Sulfonate

Shelf life

12 months from the date of production If stored properly in undamaged, original, sealed packaging

Storage conditions

Store in dry conditions, protected from direct sunlight at temperature between 5°C and 40°C

Density

1.210 - 1.230 kg /L (at 25°C)

pH-Value

7.0 - 9.0 Approx.

 

Application

Application Information

Dispensing

Sikament® NN (W) can be added separately to the freshly mixed concrete or directly to the mixing water prior to its addition to the aggregates. When added separately to the freshly mixed concrete, further mixing should take place for at least one minute per cubic meter.

Compatibility

Sikament® NN (W) is compatible with all types of Portland Cement, including S.R.C. type and Hydraulic Cement.
Consumption

Recommended dosage

600 - 3,000 cc. per 100 kg. of cement weight. Exact dosage rates are dependent on the type of effect sought, quality of cement and aggregates, water/cement ratio and ambient temperature. Therefore, in many cases it is advisable to carry out trial mixes.

Documents