Green options for binder system and aggregate in sustainable concrete

摘要

Conservation of natural resources, reduction of greenhouse gases and environmental pollution, and utilization of waste materials are among the basic tenets of sustainable development. In case of concrete construction, these objectives are fulfilled by appropriate choice of binder systems and aggregate, which are elaborated in the paper. Particular attention is drawn to the use of ternary cement blends containing industrial wastes, bottom ash as fine aggregate and recycled aggregate in structural grade concrete. Examples of current construction practice in India and research initiatives are highlighted.