The brief

Analyst view

• Pioneer in low-carbon cement using waste from steel mills and coal plants.
• Dunkirk facility produces 300,000 tonnes/year, 70% lower CO2 than average European cement.
• €50 million facility is a JV with CB Green; €3.6 million from France 2030 programme.

Technical approach

As reported

Supplementary materials

Industrial byproducts replace clinker

Blast furnace slag (from steel mills) and fly ash (from coal plants) replace traditional clinker. No additional heating needed.

Performance matched

Same strength and durability as standard cement

ACT cement meets all concrete performance standards: compressive strength, durability, workability. No construction changes needed.

Drop-in ready

Works in existing cement mills

ACT is a blend design, not a new kiln or process. Uses existing infrastructure with no equipment changes.