
Carbstone
About us
Building Green, Building strong with Carbstone!
Carbstone is a sustainable building material made from steel industry waste and carbon dioxide. Instead of using cement—which produces a lot of CO₂—Carbstone stores CO₂ into the stone itself, making it environmentally friendly and even CO₂-negative. The process is simple: steel waste is ground up, shaped into blocks, and hardened with CO₂, turning it into a strong, durable material in just 24 hours. These blocks are fully recyclable, get stronger over time as they continue absorbing CO₂, and are just as sturdy as traditional cement blocks. In short, Carbstone is a green, smart alternative for construction that turns waste and greenhouse gases into something useful and sustainable.
Products & services
News

Masterbloc x Madaster
Support Circular Construction Innovation

Sustainable Building Revolution
Carbstone versus Traditional Building Materials: The Key Differences

EPD - Verified
Innovative CO2-negative building blocks with EPD certification

Soundblox Carbstone absorbs sound and CO2
Circular, cement-free and CO2-negative

Limburg green brick technology for new soccer temple in Saudi Arabia
Sustainable soccer stadium Saudi Arabia with CO2-negative bricks

The Production Process of Circular Carbstone Building Blocks
Introduction to CO2 Neutral Construction
