Portland Slag Cement is blended cement consisting of intimately inter-ground mixture of Portland cement clinker and granulated blast furnace slag, or an intimate and uniform blend of Portland cement and fine granulated blast furnace slag, together with required quantity of gypsum, in which the amount of slag constituent is within the specified limit.
Using ground slag to replace a portion of clinker in manufacturing Portland cement is a useful method to make concrete better and more consistent. Among the measurable improvements are:
PSC is defined by BIS specifications IS:455/1989. Portland slag cement is nowadays commonly used in general civil engineering construction works and is mainly preferred for construction of main structures and in coastal areas where excessive amount of chloride and sulphate are present. It is most useful in massive construction projects such as dams. Its significant properties like resistance to chemical attack makes it most suitable for usage in water retainer structures and structures which are vulnerable to any form of chemical attack.
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