Abstract
There is increasing concern around the world which has led to attempts to reduce the carbon footprint and the embodied energy of cement and concrete manufacturing through using different types of materials as alternatives mainly for Ordinary Portland Cement (OPC). This study determines the emitted carbon and embodied energy for a concrete skeleton of an imaginary case study of a three storey building by using six different scenarios for the type of concrete. In addition, the amount of carbon absorbed by the carbonation process has been roughly estimated. A life cycle analysis framework is used to perform an assessment of the whole life (from cradle to grave) for the concrete elements of the building. An inventory of the different types of energies and materials used during the complete life was sourced for the input data to determine the exhausted energy and the associated carbon emissions.