Abstract
Abstract: Blast furnace slag is a byproduct of Iron & steel industry across the world. It is an industrial waste material obtained by iron and steel making process. Approx 300 kg waste slag is produced for every MT of crude steel production. Annual production of Slag is 35 MT in Odisha, 150 MT in India and approx. 2000 MT in the world. Such a huge volume of industrial waste is generated every year. Considering the physical and chemical properties of slag, it can be utilized in construction industry. Slag is used in cement industry. Slag can be used as partial replacement for sand. The production of cement has always lead to massive exploitation of natural resources. Ordinary Portland Cement being produced yearly around the globe contributes to 5 percent of greenhouse gas and 2.5% of total worldwide waste emissions from industrial sources. One effective way to reduce the environmental impact is to use mineral admixtures, as a partial cement replacement both in concrete and mortar, which will have the potential to reduce costs, conserve energy, and minimize waste emission.
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