CARBOSANDS Solid Carbon Sand is a carbon-negative fine aggregate designed for concrete applications. Composed of pure carbon, it is non-toxic and stable for thousands of years. Solid Carbon Sand will possess the same properties as traditional mineral construction sand and is intended to serve as a complete replacement. Given that Solid Carbon Sand is made from methane derived from CO2, concrete can transform into a supersink for atmospheric CO2, with the potential to operate on a gigaton scale.

Turn concrete into a CO₂ super sink: Use Solid Carbon Sand instead of conventional construction sand for your concrete

How does it work? CARBOSANDS is developing a technology that produces carbon-negative solid carbon of a quality suitable for construction sand, CARBOSANDS Solid Carbon Sand. This innovation enables the cement industry to provide carbon-negative concrete without requiring modifications to their existing cement products.

CARBOSANDS Solid Carbon Sand can even be produced from CO2 captured during cement production. This approach enables the cement industry to avoid the costly transportation and underground storage of CO2 while simultaneously marketing combined products of cement and sand for high-performance concrete.