A design graduate has developed a paint that is capable of absorbing 20 per cent of its weight in carbon over its lifetime. The trick: She included demolished concrete in the paint.
The paint is made of waste concrete powder from concrete recycling that is normally buried in landfills.
Concrete's natural ability to absorb CO2 through a chemical process called mineral carbonation is used here, wherein the paint reacts with the CO2 in the surrounding air and reabsorbs a significant part of the emissions that were generated by producing the cement in the first place.