Every year in Belgium 37 million tons of earth streams are excavated and usually dumped in mines and quarries, hundreds of kilometers away from the site - not only a very unproductive activity (with hundreds of trucks on the road every day), but also a waste of very valuable materials. BC materials estimates that at least 16 (out of the above 37) million tons could be used as building materials.

At its Brussels production site, BC materials blends and transforms ordinary earth streams - considered by some as waste - into perfectly circular building materials, such as clay plasters, compressed earth blocks and rammed earth.

The production process is CO₂-neutral, as it does not need high heating mechanisms, contrary to other building materials. And the products are perfectly circular: in origin, as they were originally 'waste', and in destination, as the materials are not chemically altered and can be reused an infinity of times.

Earth materials also offer better acoustics (4 times better than classic gypsum, according to ASTM tests), air quality (through humidity regulation) and thermal mass (temperature mitigation).

BC materials provides advice, training and workshops.