Retardant additive in concrete Teknoretarder

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Retardant additive in concrete Teknoretarder

Supplement slow the hardening of concrete.


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Teknoretarder is additive for concrete to slow its hardening.


  1. used in all types of concrete where necessary medium and long-term delay solidification
  2. to preserve the quality and strength characteristics of concrete during casting at high temperatures
  3. when pouring a large volume of concrete

The features and benefits

  • reduces the amount of heat produced during hydration
  • reduces thermal shrinkage
  • allows you to pour concrete at temperatures above 35 C
  • facilitates the process of casting and does not affect the final strength of concrete

Notes on application / Limitations

Teknoretarder can be added to the concrete at the construction site or at the factory when mixing. Mixing is carried out not less than 5 minutes. To improve the setting process of the concrete it is necessary to use additional measures: depending on the ambient temperature it is necessary to use a modified cements and special additives. The ratio of water to wagamama should be reduced by 3-5%.

After application the surface should be protected from direct sunlight, strong wind, high air temperature (above 35° C), rain and frost. During operation, observe the safety and labour protection.


Light yellow

Shelf life

12 months in unopened original packaging


30 kg bucket


0,25 - 2% (relative to binder)


1.1 kg/l


< 0,1 %

Alkali content

< 5 %


>2 N/mm2