Set retarding admixture

CHRYSO®Delta 5S slows down the hydration of cement by momentarily blocking the surface of the cement particles. At the end of setting, the concrete hardens rapidly and higher compressive strength is obtained after 28 days.

CHRYSO®Delta 5S has no surface tension effects. Its use in concrete modifies in no way the consistency of concrete.

CHRYSO®Delta 5S can be used simultaneously with high range water reducing superplasticizers.

Application domain

  • All cement types
  • Plastic or fluid concretes
  • Concrete with workability retention
  • Ready-mix concrete


CHRYSO®Delta 5S is used to adjust the workability retention and initial workability being fine-tuned thanks to the ultra / high range water reducing admixture.

CHRYSO®Delta 5S can therefore be used for a wide range of concretes.

CHRYSO®Delta 5S is the perfect solution in case of remote jobsite or heavy traffic, as well as temperature changes.

CHRYSO®Delta 5S makes it possible to avoid re-tempering at the delivery point.

CHRYSO®Delta 5S is particularly suited for cements for which workability retention is difficult to get and/or at high temperature.



  • 20 L bucket
  • 200 L drum
  • 1000 L IBC

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