Effect of Iron Slag and Robodust on the Mechanical Properties of Concrete

Abstract

Concrete is the composite material which is contains cement, coarse and fine aggregate. The real fact is that the concrete production was observed to be 10 billion tons per year, which is double the utilization of other building materials such as timber, steel, etc. Due to the efficient properties of concrete, it is broadly used in the construction of the buildings. To increase the mechanical properties of concrete and to make it more efficient, researcher have been conducting many experiments using various other materials as the substitute of cement, fine aggregate and coarse aggregate. Manufacturing of cement produces more carbon dioxide and thus in turn creates air pollution. In order to decrease carbon dioxide production, minimize the waste materials and to make the concrete eco-friendly and economical, robodust and iron slag has been adopted in this study. In this research, 30% robodust has been replaced with fine aggregate and 10%, 20%, 30%, 40% and 50% iron slag has been replaced with cement. The combination of robodust and iron slag replacement with fine aggregate and cement respectively has shown good increase in mechanical properties of concrete in contrast to conventional concrete.