What is Superfine

Low carbon, super high grade GGBS for specialist applications.

Superfine is a finer grade of Ground Granulated Blastfurnace Slag (GGBS) designed to be used as a specialist additive in binders, all dry-mortar applications, Ultra High Performance Concrete, and precast concrete to help reduce carbon emissions, improve rheology, strength, and durability.

Developed by grinding Granulated Blastfurnace Slag (GBS) to a very fine particle size, Ecocem Superfine can be added to products to significantly enhance a range of performance criteria.

Superfine is a white powder that can be used to improve the finish of concrete and reduce the amount of pigment required. It is less irritant, due to lower pH and to lower Cr(VI) content, making it a safe and effective additive for your building material formulations.

Watch our Superfine video now: https://www.youtube.com/watch?v=52I6RU4Y8Sg


Superfine is ground to such a high particle size that it can be used to boost the GGBS component of material formulations resulting in increased early age and final strength. Ecocem Superfine is used to increase the strength of a variety of applications, most notably those that already contain GGBS.


Superfine can be used to improve the performance of several products without negative impact on rheology of mortar and concrete mixes, that benefit from Superfine addition, enabling the reduction of plasticiser demand by up to 30%.

The lighter colour of Ecocem Superfine can lower your pigment requirements and improve the surface finish, particularly compared to silica fume and ordinary cement.

The fineness of Ecocem Superfine improves the microstructure of material formulations making them more durable and better performing.

Ecocem Superfine has a carbon footprint of 32kg CO2 per tonne and has a verified Environmental Product Declaration.

Where can Superfine be used?

  • Precast Concrete
  • Low Carbon Binders
  • Industrial Mortars
  • Grout
  • Ultra-High Performance Concrete

Download the Superfine TDS Sheet now.