Practical specification of lower-carbon concrete

Fergal Kelly reviews the use of ground granulated blast-furnace slag (GGBS) in the UK and its role in reducing embodied carbon.

Peyrouz Modarres describes the engineering design of The Lark, a multistorey residential project at Nine Elms, London.

Calcined clay has emerged as one of the most promising solutions to the challenge of finding a replacement to ground granulated blast-furnace slag and pulverised fuel ash or fly ash. This article examines its technical properties, environmental benefits, and practical implementation for structural engineers within current standards and practices.