The Holcim group positions itself as an actor in the ecological transition in the cement industry, a sector among the world's largest CO₂ emitters. The production of cement generates approximately 8% of global anthropogenic emissions, primarily linked to the calcination of clinker and combustion in rotary kilns. Facing this physicochemical reality, the manufacturer multiplies announcements regarding the reduction of its carbon footprint, but what concrete technical means underpin these commitments?
Among the levers mobilized by Holcim, is the partial substitution of Portland cement (CEM I) with composite cements with reduced clinker factor, such as CEM III enriched with blast furnace slag or CEM II with added fly ash. These formulations make it possible to lower emissions per ton of binder, while maintaining the mechanical properties required according to the target strength class, in accordance with DIN EN 197-1 standard. The group is also investing in carbon capture and storage (CCS) at certain pilot sites, a technology still in the phase of industrial maturity development.
In parallel, Holcim is developing ranges of low-carbon concrete intended for building and civil engineering markets, incorporating recycled aggregates and alternative binders. The availability of certified environmental product declarations (EPD) remains a determining criterion for specifiers concerned with traceability and compliance with regulatory frameworks such as the GEG or DGNB standards. Sector observers note that the actual effectiveness of the group's strategy will depend as much on the volumes of production concerned as on the transparency of life cycle data communicated to actors in the value chain.
At a time when regulatory pressure is increasing in Europe with the progressive entry into force of the Carbon Border Adjustment Mechanism (CBAM), the ability of Holcim to industrialize its material innovations will constitute a major credibility test. To deepen the strategic and financial context of this transformation, also consult the analysis of cement production decarbonization.
