Karbonite process promises 52% energy savings compared to traditional cement
Published by Sol Klappholz,
Assistant Editor
World Cement,
A UK start-up has developed an environmentally friendly cementitious process that is 52% more energy efficient than current industry standards. This translates to over 25% plus savings of CO2 equivalents compared to industry standards.
This revolutionary new process utilises natural mineral feedstock’s and a biomass waste stream combined with additional Geo Polymers to create a cleaner, greener production process. The mineral based raw material and biomass performance additives are globally widely available and are already established feedstock in industrial non-construction applications. The mineral in question is activated at just 750°C – 850°C, resulting in massive energy savings. During activation, Karbonite releases water, not harmful toxins. This water can be captured and recycled.
“Karbonite is freely miscible with conventional clinker and provides the same compressive strength as current industrial cement mixtures at only 50% clinker use,” explains Rajeev Sood, Founder & CEO.
“Furthermore, the process involves CO2 sequestration, along with the use of liquid-infused CO2 absorption within the molecular structures, resulting in a total carbon footprint of 2.7 kg per tonne of Karbonite. It has the potential to be a total game changer for the cement industry.”
Karbonite can be used to make breeze blocks, paving stones and floor covering. The team would like to test free pouring capabilities in due course. The binding and physical strength of this material is modulated by the addition of sustainable performance additives, which originate from biomass conversion processes implemented at industrial scale (i.e. thermally processed lignin or solid biogas residue), providing yet another environmental benefit.
“Karbonite offers a wealth of potential to an industry targeting net zero,” says Rajeev. “We are excited to talk to cement and concrete producers about how they could integrate Karbonite technology in their existing process.”
Read the article online at: https://www.worldcement.com/product-news/24062022/karbonite-process-promises-52-energy-savings-compared-to-traditional-cement/
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