Decarbonise the clinker, prove the number
Cement's emissions are chemistry as much as energy. Carbonix accounts for both — process and combustion — with the rigour regulators and buyers demand.
Why cement is different
Around 60% of a typical cement plant's emissions come not from burning fuel but from calcination — the chemical release of CO2 when limestone becomes clinker. That makes cement structurally carbon-intensive: efficiency helps, but chemistry dominates. The rest comes from kiln fuel and from electricity for grinding, fans and material handling.
This is why cement's key levers are specific: the clinker factor (blending fly ash, slag and limestone), alternative fuels, thermal substitution, and grinding efficiency. Tracking must therefore separate process, thermal and electrical emissions precisely — a bundle them together and your decarbonisation plan is blind.
What Carbonix tracks for cement
Kiln fuel consumption and analysis, raw-meal chemistry, clinker production and blending ratios feed process-emission calculations aligned to recognised protocols. Plant electricity is split by grinding and utility loads against CEA grid factors; blended-cement products receive allocated intensities for CBAM-relevant exports and buyer disclosures.
BRSR Core indicators and PAT energy-metric documentation draw from the same audited dataset as the technical work — one source of truth for regulators, assessors and customers.
The blended-cement advantage, documented
As PPC, PSC and composite cements lower clinker factors, Carbonix quantifies the benefit per product — turning sustainability strategy into a marketable, verifiable number.
Frequently asked questions
+Why does cement emit so much CO2?
Two reasons: calcination releases CO2 chemically when limestone converts to clinker — roughly 60% of plant emissions — and kilns burn large quantities of fuel at high temperatures. Electricity for grinding adds a third, smaller share.
+What is the clinker factor?
It is the ratio of clinker to cement in a product. Blended cements using fly ash, slag or limestone dilute clinker, cutting emissions per tonne of cement — one of the industry's most effective decarbonisation levers.
+Does CBAM affect cement exports?
Yes — cement is in CBAM's initial scope. Exporters to the EU need verified product-level embedded emissions; undocumented products risk default values that overstate their footprint.
Ready to see Cement in action?
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