The cement sector is showing clear acceleration in the adoption of low‑carbon solutions, while slag‑based technologies — particularly granulated blast furnace slag (GBFS) and air‑cooled blast furnace slag (ACS) — are becoming essential tools for decarbonisation. Recent developments in Spain, at international industry forums and in innovation funding confirm the strengthening of this trend.
Cement consumption in Spain rises, boosting demand for slag components
According to Global Cement, cement consumption in Spain increased by 5% in April, signalling stronger construction activity and growing demand for low‑carbon cement blends.
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This growth encourages producers to expand the use of GBFS as a clinker substitute, helping reduce CO₂ emissions and comply with environmental requirements.
Global leaders unite to accelerate the green transition in cement
At the Green Cement Transition 2026 forum, leading companies, researchers and regulators discussed pathways to speed up the shift toward low‑carbon production.
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Participants emphasised that GBFS and ACS are critical for reducing clinker content and achieving climate targets. The forum highlighted the need to scale innovative technologies and expand access to secondary materials.
Ecocem consortium secures funding for low‑carbon cement development
Ecocem announced that its consortium has received funding to develop new low‑carbon cement technologies capable of significantly reducing CO₂ emissions.
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The project focuses on using GBFS as a core component of next‑generation cements, reducing reliance on traditional clinker.
Conclusions
The cement industry is entering a phase of structural transformation, where slag‑based technologies are not just an alternative but a strategic foundation for low‑carbon production. Key takeaways include:
- Demand for GBFS and ACS is growing faster than the cement market itself, confirming their decarbonisation value.
- Regulatory pressure and global initiatives are pushing producers toward lower‑carbon materials.
- Innovation funding, such as Ecocem’s project, shows the sector’s readiness to scale new technologies.
- Spain demonstrates that rising cement consumption can align with climate goals when slag components replace clinker.
- GBFS is becoming the primary clinker substitute, while ACS strengthens its role in infrastructure applications.
Together, these factors indicate that the industry is shaping a new development model where slag‑based materials play a central role in achieving climate objectives and improving competitiveness.