US: Cementos Argos has started incorporating and capturing recycled carbon dioxide (CO2) in several of the concrete mixtures it produces at its US plants, specifically the ones in Atlanta, Georgia. The CO2 is collected, stored and taken to the plant by the Canadian company CarbonCure, which developed the batching technology. The gas chemically reacts with the calcium hydroxide and the water of the concrete, making insoluble calcium carbonate.
“We are extremely proud of being the first company in the United States to be able to offer its customers a product with CO2-capturing and incorporating properties. This concrete, even when demolished, never releases the CO2 contained within its structure, allowing us to close the gas’ cycle and contribute to making the construction sector more and more sustainable and eco-friendly,” said Jorge Mario Velásquez, CEO of Cementos Argos.