alterBiota | Build Better

Trusted by producers & partners

The challenge

Concrete’s massive and hard-to-abate CO₂ footprint

Concrete drives 7–8% of global CO₂ emissions, and most of that carbon comes from the cement. But carbon is only half the story: producers are often required to increase cement loading to compensate for the variability of locally sourced aggregates. They pay more, carry more operational risk, and lock in higher embodied carbon just to hit strength and workability targets.

We reduce that variability with real-time aggregate intelligence and replace the excess cement with a carbon-negative admixture. The result is better performance, lower production cost, less operational risk, and meaningful emissions reductions, all without disrupting the manufacturing processes plants already run. Build better — with the materials and intelligence plants already understand.

One platform · two products

Decarbonize the mix. De-risk the aggregate.

ΔC

The world's first liquid biochar admixture permanently stores ~10–18% of mix embodied carbon as biogenic CO₂ (30–50 kg CO₂e per m³), enables ~5–10% cement reduction, and cuts embodied carbon by more than 20%, without compromising performance. It's a drop-in solution requiring no specialized equipment, with all environmental attributes transferred to you.

100 m³+: concrete produced for real projects
5 t+: CO₂ saved in the field
30–50 kg: CO₂e permanently stored per m³

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Workspace

digitalΔggregate

A connected digital QC workflow for aggregate quality: mobile sample capture and analysis on any device, plus inline hardware on the material stream, so teams get earlier insight, less manual data entry, and better traceability without waiting on the lab

< 5 min: from photo to gradation insight
25+: Active materials companies and labs
150+: different aggregate types analyzed in the field

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From the field

What producers tell us after the first pour

The performance improvements we saw with ΔC were impressive. Achieving our required strength in a fraction of the expected time helped accelerate field deployment while reducing the embodied carbon of the project. As an organization focused on restoring ecosystems and removing carbon, working with innovative partners like alterBiota is essential to scaling climate-positive infrastructure.

Our team was genuinely impressed with how seamlessly ΔC integrated into our mix design. The admixture produced concrete with excellent workability, and consistent finishing characteristics, with the added environmental benefit. ΔC allowed us to cut embodied carbon without complicating production as it worked with our existing admixture system. As a producer, we are looking for innovations that enhance both performance and sustainability, and ΔC is one of the first products we've tested that delivers on both. We see potential for its use across a wide range of our concrete applications, including precast concrete.

This is only the first step in a much larger partnership. In the near term, producers can expect empowered data-driven QC decision making, advanced optimization opportunities, and better control over material inputs. Long term, the vision is even bigger: fully connected quarries, batch plants, and job sites sharing data to fine-tune concrete quality from the source. Our collaboration with alterBiota reflects Giatec's vision for a future where intelligent integration and innovation drive efficiency and quality across concrete production.

The performance improvements we saw with ΔC were impressive. Achieving our required strength in a fraction of the expected time helped accelerate field deployment while reducing the embodied carbon of the project. As an organization focused on restoring ecosystems and removing carbon, working with innovative partners like alterBiota is essential to scaling climate-positive infrastructure.