RussTech carries a full line of retarding concrete admixtures. These products have been specifically designed to enhance strengths and maintain normal set times during hot weather concrete placements.

CSA RETARDER is a set retarding admixture designed for use with Calcium Sulfoaluminate Cement Systems, specifically Qwix®. It will extend the working time based on dosage to facilitate the placing and finishing of concrete while providing control over the set time.


  • Designed especially for Calcium Sulfoaluminate Cement Systems, specifically Qwix®
  • Provides variable control of setting time based on dosage rate
  • Increases both compressive and flexural strengths
  • Increases density and relative durability
  • Resists damage caused by freezing and thawing
  • Helps reduce segregation
  • Provides superior finishability on all flatwork and pre-cast surfaces
  • Improves pumpability of concrete