Sikament® R-7 N

Water Reducing and Set Retarding Concrete Admixture

A concrete plasticizer and retarder based on modified lignosulfonates used to produce good quality concrete.
Complies with ASTM C494 Type D.

  • Only set retarding, does not delay the hardening process;
  • Allow cement reduction compared to plain concrete;
  • Increase in ultimate strength;
  • Good control of slump loss even at elevated ambient temperature;
  • Reduced shrinkage and creep;
  • Chloride free, does not attack reinforcement steel.