Together with a team they developed a method to combine old concrete with carbon dioxide, taken from the air or industrial exhaust, to create a new, durable material called calcium carbonate concrete.

To make concrete, limestone, or calcium carbonate, is mixed with clay and other materials and then calcined at high temperatures, so CO2 is released via the thermal decomposition of calcium carbonate.

While traditional cement production gets its necessary calcium carbonate from limestone that releases carbon dioxide when heated in a kiln, the U-M researchers can make the calcium carbonate ...

With cement significantly contributing to the embodied carbon from construction, new green cement solutions could enable ...

The architectural mortar samples were collected from the bordering concrete city wall (C). Large-area EDS mapping of a fracture surface (D) reveals the calcium-rich (red), aluminum-rich (blue ...

CALCIUM carbonate can exist in three polymorphic forms, which in the order of their usual stabilities are calcite, aragonite and vaterite. Calcite is the most stable and the least soluble ...

The rare wildflowers grow only on soils containing calcium carbonate, which is used in medicines, toothpaste, cement and other products. “This mining withdrawal is a key step in protecting these ...

Eve Pope, Technology Analyst at IDTechEx When it comes to corporate sustainability and emissions reductions targets, scope 3 ...