Hardening accelerating concrete admixture.

SikaRapid®-1 is a liquid hardening accelerator for concrete and mortar. It meets the requirements for hardening accelerators according to EN 934-2. SikaRapid®-1 promotes early strength development without negatively influencing final strengths.

SikaRapid®-1 provides the following advantages through accelerated hardening of the concrete:
  • Faster turnaround of formwork in precast applications
  • Reduced or eliminated heat or steam curing
  • Fast construction processes and early load bearing capacity
  • Continuous concreting at low temperatures
  • No negative effects on the final strengths
When applied with a superplasticizer, SikaRapid®-1 will not change the fresh concrete properties produced by the superplasticizer. SikaRapid®-1 does not contain chlorides or any other ingredients which promote the corrosion of steel. It is therefore suitable for use in reinforced concrete