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)
  • Chloride free - does not attack reinforcement or prestressed cables