Manufacturing calcium sulfoaluminate (CSA) cement uses less energy and produces less carbon dioxide than conventional Portland cement. A recent BRE research programme has shown that CSA cements blended with materials such as ground granulated blastfurnace slag and anhydrite, and belite-CSA cements with a higher iron content, can be used to produce durable concrete with physical properties comparable to equivalent Portland cement concrete. This Paper presents the background to the drive to reduce the environmental impact of cements by developing CSA cements.

Format: A4, 4 pages, 1 photo