Product Data Sheet Show all documents
Sikament® NN

Sikament® NN

High Range Water Reducer Admixture

Sikament® NN is a highly effective dual action liquid superplasticiser for the production of high slump concrete or as a substantial water reducing agent for promoting high early and ultimate strength.

  • Improved workability 
  • Improves concrete placement
  • Especially suitable for slender components with congested reinforcement
  • Improved compacting behaviour
  • Improves cohesion of the concrete mix which significantly reduces the risk of segregation
     
Product Data Sheet Show all documents

Usage

  • Slabs and foundations
  • Walls, columns and piers
  • Slender components with densely packed reinforcements
  • Sprayed concrete
  • Textured surface finishes
  • Pre-cast and pre-stressed concrete elements
  • Bridges and cantilever structures
 

Advantages

  • Improved workability 
  • Improves concrete placement
  • Especially suitable for slender components with congested reinforcement
  • Improved compacting behaviour
  • Improves cohesion of the concrete mix which significantly reduces the risk of segregation
     

Packaging

Bulk supply, 1000 litre IBC, 205 litre drum, 10 litre container.

Colour

Dark brown liquid

Product Details

Sustainability / Certifications / Approvals

APPROVALS / CERTIFICATES

Sikament® NN meets and exceeds all requirements of Australian Standard 1478.1-2000 for High Range Water Reducing Admixture (HWR).
Product Information

Composition

Aqueous solution of sodium naphthalene formaldehyde sulphonate (SNS).

Shelf life

Stored at temperatures between 5°C and 35°C in unopened original containers protected from direct sunlight and from frost, shelf life is one (1) year. 

Storage conditions

Store at temperature between 5°C and 35°C  protected from direct sunlight.

Density

~1,20  g/cm3

Application

Application Information

Dispensing

Sikament® NN is best added directly to the freshly mixed concrete.
To achieve the optimum performance, a wet mixing time at the batching plant of at least 60 seconds/m3 is recommended (dependent on mixing conditions and mixer performance).To avoid excess water in the concrete, the final dosage must begin after 2/3 of the wet mixing time.

Sikament® NN can also be added to the premix truck on site.  In this case, concrete should then be mixed for a further three minutes before placement.

Compatibility

Sikament® NN may be combined with many other Sika Concrete admixtures.When combined with a PCE based water reducer may lead to inconsistent results. Trials must always be carried out before combining products in specific mixes. Contact Sika Technical Services for additional information and any specific combinations.
Consumption

Recommended dosage

Depending on the workability required, Sikament® NN is normally added at dose rates between 500 to 1500 ml  per 100kg cementitious.  Exact dosage rate should be determined by site trials.

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