Let us build our world with CO₂

CARBOSANDS is an innovative technology to substitute sand in concrete with carbon-negative Solid Carbon Sand, creating a carbon sink of up to 40 gigatons of CO₂ p.a. – a carbon supersink.

The CARBOSANDS sand is produced from methane by thermal methane decomposition and an innovative solid carbon sand design process. The carbon-negative methane input will initially be Renewable Natural Gas (RNG), complemented by power-to-gas methane made from atmospheric CO₂ captured by Direct Air Capture (DAC). We call it a “Gigaton highway from DAC to buildings”.

How does it work? Our carbon-negative CARBOSANDS Carbon Sand is designed to replace sand in concrete as a synthetic aggregate. This enables the cement industry to offer carbon-negative concrete with its existing cement products.

Our CARBOSANDS Carbon Sand can even be produced from the captured CO₂ of the cement production itself. In this way, the cement industry can avoid the expensive transportation and underground storage of CO₂ and at the same time market combined products of cement and sand for performance concrete. Find out more