Ekan® SR 50

Shrinkage Reducing Admixture

EN 934-1

  • Ekan®SR 50 is a chloride-free admixture specifically formulated to reduce drying shrinkage in mortars and concretes. Ekan®SR 50 provides a significant reduction in shrinkage strain and harmful cracks. Ekan®SR 50;
  • Minimizes drying shrinkage in both fresh and hardened concrete properties – the initial and final setting times can be extended by approximately 30-60 minutes.

  • Increases the durability and service life of concrete.

  • Reduces joint maintenance expenses in concrete slabs.

  • Allows for expanded spacing between joints.

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Slight, non-toxic odour

0.920 ± 0.03 kg/lt

5.00 ± 1.5


Plastic Tank: 1100 kg

Areas of Use

  • Structures of ready-mixed or precast concrete requiring high-performance and high durability, including:

  • Slabs, parking structures, bridge decks, pavements,

  • Water-retaining structures requiring enhanced water impermeability (hydraulic structures, channels, tanks, etc.),
  • Shotcrete applications

  • Mortars and grouts


Dosage: 1.0 kg – 2.0 kg per 100 kg cement.

Optimum dose of Ekan®SR 50 should be established after local tests considering the expected shrinkage reduction. Typically the extent of this shrinkage ranges from 30% at the lower dosage to up to 50% at full dosage of Ekan®SR 50. At same dosages, its effect will be more significant in designs with a lower w/c ratio.

Ekan®SR 50 can either be introduced into the mixture water or added as a final component to the already mixed wet concrete. In case the product is incorporated into the mixture by a pan mixer it should be mixed for a minimum of 60 seconds or 5 minutes in case it is mixed in the transit mixer in order to ensure a homogeneous dispersion of the product.


Ekan®SR 50’s shelf life is 12 months when stored in its original package in a dry environment protected from direct sunlight, at a temperature between +2°C and +35°C. Below temperatures or frost will destroy the product while temperatures higher than +35°C will damage it.

After a long idle period, shake, mix the product or use a circulation pump to homogenize it before use.

Avoid contact with eyes and skin. Detailed health and safety information is available in the Material Safety Data Sheet (MSDS).