Low Carbon Concrete
Summary
Concrete production is responsible for signficant carbon emissions as a result of the conversion of calcium carbonate into calcium oxide, releasing carbon dioxide, and of the use of hydrocarbon derived fuels. Yet it is a vital constituent of our built environment. Whilst concrete remains invaluable and irreplaceable the carbon content of concrete can be reduced and a number of innovations are being investigated. Crossrail worked with the David Ball Group to investigate the viability of using its CemFree product for infrastructure. This report details the outcomes of the trials and describes the constraints imposed on the industry by the limitations of the current standards.