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