Experimental Study on Utilization of Blast Furnace Slag in Concrete

Slag is one of the non metallic product which is formed in the manufacture of pig iron and steel in blast furnace. The constituents of slag are silicates of calcium, manganese and aluminium in different compositions. The molten slag is insoluble having lower density and floats on the pig iron. Slag is one of the essential by product obtained in the manufacture of iron, which is considered as the industrial waste product. But this waste product will be considered as one of the useful product in the construction industry. Hence this slag can be used as alternative material for coarser aggregates and finer aggregates in construction activities. The study can be carried out by partial replacements of steel slag for fine aggregates to know the concrete strength parameters. The different types of steel slag are listed below: Blast furnace slag (BFS) and steel furnace slag (SFS) are being use as an industrial by product. For the cement composites and cementitious components of concrete, Ground granulated blast furnace slag (GGBS) has been used. BFS and SFS have distinctive chemical and physical properties hence they are well suited for use in various construction and civil engineering projects Air-cooled BFS provides a strong aggregate that can be used in the production of concrete, Portland cement as well as asphalt-concrete. Water Cooled slag with gives lightweight aggregates which can be uses in the production of masonry blocks and lightweight concrete. Pelletized & granulated BFS are grouted and used in production slag cement. S