GreenMixes provides carbon‑negative concrete admixtures that allow construction firms to replace more than 15% of cement with biochar‑based binders, cutting CO₂ emissions without altering existing batching processes or requiring capital investment. Their proprietary technology enables 2–3× higher biochar loading than industry norms while maintaining structural performance, and the solution has been validated at the University of Cambridge for large‑scale public infrastructure projects.
Funding
Funding not disclosed
Founders
Product
Problem
Concrete production generates a significant share of global CO₂ emissions, and traditional cement formulations limit the amount of low‑carbon material that can replace cement without compromising structural performance.
Solution
GreenMixes offers carbon‑negative concrete admixtures that incorporate biochar derived from agricultural waste, enabling more than 15% of cement to be substituted. Their proprietary binders support biochar loading rates that are two to three times higher than typical alternatives while preserving strength and meeting all industry standards. The admixture can be added to existing batching processes without any capital expenditure or workflow changes, allowing concrete manufacturers to reduce emissions at scale. By converting biomass residues into stable carbon that is permanently locked in building structures, the platform provides a direct pathway to lower the carbon footprint of new construction projects.
Target Audience
Primary customers are concrete manufacturers, large‑scale developers, and public infrastructure agencies seeking to decarbonize their construction projects.
Features
- Biochar‑based admixture that replaces >15% of cement, exceeding the industry norm of ~5%
- Proprietary binders enable 2‑3× higher biochar loading without sacrificing structural performance
- Seamless integration into current concrete batching lines with zero capital expenditure or downtime
- Meets all relevant concrete standards, ensuring compliance for commercial projects
- Validated by independent research at the University of Cambridge for large‑scale deployment