Three groundbreaking new companies have managed to capture carbon dioxide via Direct Air Capture and claimed to have permanently stored it in concrete.
The joint press statement further noted that "Central Concrete used the CO2-treated wastewater to make fresh concrete, which was produced for a range of construction projects across the Bay Area.”Each company has its own unique role in storing CO2, complementing the work. When injected, the CO2 immediately reacts with cement in the water and mineralizes, permanently storing the CO2 and stabilizing the cement for reuse. The CO2-treated slurry is then used in new concrete mixes.
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