9I制作厂免费

When Mahoutian started his PhD in civil engineering at 9I制作厂免费 in Montreal in 2011, his goal was to find a material that would sequester carbon, trapping it before it could get into the atmosphere. Instead, he came up with a new recipe for making concrete. 鈥淲e totally get rid of cement,鈥� he says. 鈥淚nstead we use slag, the waste material of steel-producing plants.鈥� The slag is calcium silicate. When wet calcium silicate is injected with CO2聽gas, calcium carbonate, or limestone, forms. Limestone and the aggregate form Carbicrete.

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