SikaPlast®-170

Superplasticizing admixture for precast concrete

SikaPlast®-170 is a polycarboxylate based superplasticizer particularly formulated for the production of precast concrete elements, targeting its special demands regarding slump retention, very low water/binder ratios, use of double or triple blend mixes (cement, GGBFS, PFA and/or microsilica) and a high degree of compaction. Suitable for use in hot and tropical climatic conditions.

SikaPlast®-170 acts by surface absorption on the cement particles producing steric hindrance as well as electrostatic repulsion between the binder particles resulting in:
  • Easier control during casting due to sufficient retention period and high early strength development
  • High water reduction (leading to high density and strength) even in double or triple blend mixes (e.g. cement, GGBS, and silica fume)
  • Low w/b ratio leads to very low water permeability and chloride migration
  • High early strength and strength development even with the use of low cement content mixes
  • Improved shrinkage and creep behavior
  • Excellent flow ability resulting in minimal placing and compacting efforts
  • Does not contain chlorides or other steel corrosion promoting ingredients so may be used for reinforced and pre-stressed concrete construction