Carbon-sucking concrete is capturing attention and funding
Heather Clancy, GreenBiz.com
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Credit: Carboncure
Investment is starting to flow into the carbon capture and utilisation space following a number of landmark deals
Carbon-sequestering concrete is having a moment.
In mid-April, two climate-tech startups focused on decarbonizing the world s most widely used construction material, CarbonCure Technologies and UCLA CarbonBuilt, split the top prize in the $20m NRG COSIA Carbon XPRIZE competition. Each will receive $7.5m to further the development and commercialization of their approaches.
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Both startups address CO2 at the manufacturing site. The UCLA CarbonBuilt approach captures CO2 generated during production and then infuses it into the concrete, using hydrated lime. The process uses 60 to 90 per cent less ordinary portland cement (aka calcium silicate cement), and it doesn t require as much heat, which has an energy efficiency benefit. CarbonCure als
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