Carbon-Negative 3D Concrete is a construction material created through large-scale 3D printing, utilizing cement alternatives such as geopolymers and materials that incorporate sequestered CO2.
This technology addresses the significant environmental impact of conventional concrete, which is a major source of global CO2 emissions.
The process replaces traditional Portland cement with geopolymers and other materials that can absorb and store CO2 during the curing process. This not only reduces the carbon footprint of concrete but also enhances its structural properties.
Manufacturing involves sourcing raw materials like fly ash and metakaolin for geopolymers, as well as setting up large-scale 3D printing equipment. The process requires precise control over temperature and pressure to ensure the stability and strength of the printed structures.
The build process includes designing the structure using CAD software, preparing the raw materials, and then using a 3D printer to lay down layers of material. Each layer is cured in place with CO2 sequestration occurring during this process.
Field units draw low hundreds of watts; fabrication is energy-intensive due to vacuum baking processes required for curing geopolymers.
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