A real alternative to Portland Cement – Cemfree’s ultra-low carbon binder – a revolutionary alternative to Portland cement (PC) – is at the heart of everything we do.
Cemfree Optima (binder) is a proprietary Alkali-Activated Cementitious Material (AACM) that activates pozzolanic materials such as Ground Granulated Blast furnace Slag (GGBS) and Pulverised Fly Ash (PFA) to create a concrete that performs in a similar way to OPC.
The materials create a reaction between GGBS and Cemfree Binder. This forms a solid mass comparable to OPC, making it an ideal green, environment friendly alternative. Replacing 100% of the OPC with a Cemfree Binder results in an embodied CO2 that delivers up to 85% lower emissions than OPC-based concretes.