Sika® Intraplast® NN

Expanding grout admixture

Intraplast® NN is an expanding grout admixture for pressure/injection grouting. By introducing into the concrete mix, wet volume expansion and increased fluidity without segregation are produced.

Intraplast® NN provides the following beneficial properties:

  • Improved fluidity (~ 25 – 35 second, according to ASTM C 939)
  • Increased cohesion
  • Volume expansion in the wet state to develop non-shrink property (3-9 %, according to ASTM C 937- 80)

Usage

Intraplast® NN is used to increase flow and cohesion in cement grouts (addition of sand is possible) and to develop non-shrink property. This product can be used for grouting of:

  • Pre-stressed cable ducts
  • Rock and soil anchoring
  • Bearing plates
  • Pre-placed aggregates
  • Tunnel linings

Advantages

Intraplast® NN provides the following beneficial properties:

  • Improved fluidity (~ 25 – 35 second, according to ASTM C 939)
  • Increased cohesion
  • Volume expansion in the wet state to develop non-shrink property (3-9 %, according to ASTM C 937- 80)
  • Chloride free – does not attack reinforcement or prestressed cables

Product Information

Composition

Modified Napthalene

Shelf life

12 months from date of production if stored as per recommendations.

Storage conditions

Store properly in dry conditions in undamaged and unopened original sealed packaging. But after opening, it should be consumed within one month & should be packed properly after use.

Bulk density

~ 0.85 kg/l @ 27 °C

Consumption

Recommended dosage

0.5 to 1.2% by weight of Cement (Exact dosage rates depend on the quality of cement, water/cement ratio and ambient temperature. Therefore, in many cases it is advisable to carry out trial mixes.)

Application steps

CLEANING OF EQUIPMENT

Clean all tools and application equipment with water immediately after use. Hardened/cured material can only be mechanically removed.

Sika® Intraplast® NN

Technical Data Sheet (TDS)

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