SikaTard® R

Set retarding/stabilising admixture

SikaTard® R is a liquid admixture developed for the control of cement hydration. SikaTard® R retards/stabilises sand/cement masonry mortars/Grouts and concrete mixes.

SikaTard® R provides the following beneficial properties:
  • Improvement in open time for backfill grouts in tunnel
  • Increased setting time in hot weather concreting
  • Accelerated hardening after setting
  • Increased ultimate strengths
  • Long lasting control over slump/flow loss.
  • Better surface finish
  • Chloride free: does not attack reinforcement