Imerys : Low-carbon cement project reaches milestone in efforts to lower construction industry CO₂ emissions

Using calcined clay in low-carbon concrete innovation More than two-dozen L-shaped retaining wall units have been produced. These demonstrate that concretes containing calcined clays - and as little as 55% Portland cement clinker - at least match the performance of those containing more common ingredients, fly ash and blast-furnace slag. [...]

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