The fastest route to low-carbon concrete
Cement and precast producers are under pressure to hit tougher carbon targets while managing rising costs and tightening material supplies. GGBS and fly ash are in short supply, and most supplementary cementitious material alternatives require expensive process modifications.
Our engineered clay binder addresses that challenge. It mixes, pours, and finishes like CEM I, but replaces up to 50% of the clinker and cuts embodied carbon by as much as 80%.
This allows you to maintain batching processes, curing times, and margins - while delivering concrete that’s faster, cleaner, and fully compliant with British and Eurocode standards.
From recovered clay to reliable performance
We recover and process local clays, then flash-calcine them at around 750°C - less than half the heat used in clinker production.
This transforms the material into a high-reactivity pozzolan that reacts with Portland cement to form additional calcium–silicate hydrates, improving strength and long-term durability.
The result is a consistent, finely controlled supplementary cementitious material that has been proven at an industrial scale and is fully traceable to BS 8615-1 standards for natural calcined pozzolanas.
Every batch meets strict chemical and physical standards, ensuring consistent reactivity and strength across precast and ready-mix applications.
Applications that keep production moving
Our SCM integrates seamlessly into existing mix designs - no requalification, retraining, or new plant required. Just improved performance, a reduced carbon concrete footprint, and compliance with British & Eurocode standards.
Precast concrete
Maintain your pace and quality without accelerators or heat.
Our calcined-clay reaches demoulding strength faster than GGBS or fly-ash blends, saving valuable hours in production turnaround while maintaining a consistent surface finish.
Ready-mix concrete
Consistent performance, even during long deliveries or cold days.
Mixes behave like CEM I, so drivers and site teams experience predictable setting and strength gain - with less carbon in every pour.
Mortars & renders
Improved workability without altering batching or curing routines.
A straightforward way to reduce cement content while maintaining durability.
Efficiency & performance in numbers
Up to 80% CO₂ reduction per tonne of clinker replaced
35% to 50% clinker substitution in standard and composite cements
Similar early strength to CEM I - no additional accelerators or heat required
Competitive pricing against UK cement and GGBS
100% circular material - made from recovered clay
Certified performance you can rely on
Our cementitious material meets the same standards already used across UK and European concrete production - no new approvals, no change to how you design or specify.
Compliant with:
BS 8615-1 Natural calcined pozzolana (Q)
EN 197-1 / EN 197-5 Common and composite cements
EN 206 + BS 8500 Concrete specification and conformity
PAS 2080 Carbon management for the built environment
Every batch is thoroughly tested and traceable, providing specifiers with full confidence in product performance and certification.
Proven on Europe’s Largest Infrastructure Project
Our technology was developed during the Grand Paris Express, a 200km expansion of the Paris metro built under strict carbon reduction and durability standards.
Working with major contractors including Eiffage, Bouygues, Vinci, and NGE, we refined the process to ensure consistent, industrial-scale performance and long-term reliability.
Today, our Saint-Maximin plant produces over 200,000 tonnes of calcined clay every year - proof that low-carbon cement isn’t a future ambition, but a commercial reality already delivering results.
Partnerships that drive decarbonisation
We’re collaborative by design and keen to partner with producers, contractors, and asset owners who share our goal of decarbonising construction.
Pilot trials
Test the binder in your own mixes to see how it performs in real-world production environments.
Joint ventures
we are working to expand local production to meet demand, cut transport miles and accelerate regional decarbonisation.
Carbon partnerships
Support verified CO₂ savings in your projects or supply chain through direct material substitution.
Your questions answered
Still unsure if it fits your mix? Here are the questions we’re asked most frequently.
01
What is the product?
A fine, highly reactive calcined clay used as a partial replacement for clinker in cement. Supplied as a dry powder, it blends easily with Portland cement for any concrete or mortar application.
04
Is it more expensive than cement?
No, pricing is competitive with UK CEM I and GGBS.
02
How much carbon can it save?
Depending on the mix design, up to 80% reduction in CO₂ per tonne of cement replaced is possible.
05
Is it certified for UK use?
Yes, it meets BS 8615-1, EN 197-1/-5, EN 206, BS 8500, and PAS 2080.
03
Does it affect curing time or strength?
No, early-age strength is close to that of CEM I, allowing precast and ready-mix producers to maintain their current production times.
06
How do I arrange a trial?
Contact our technical team to arrange a pilot mix or request a sample. We’ll assist you in evaluating performance, cycle time, and CO₂ savings under your specific conditions.
Ready to build a stronger, cleaner future?
1 Rue de la Source
Hallennes lez Haubourdin 59320
France
+33 3 20 10 31 18