As industries are increasing day by day, so its by-products also increase. These byproducts can be used in the construction industry to improve certain properties of cement. Blending is the addition of supplementary cementitious materials like fly ash, ground granulated blast furnace slag (GGBS) to the cement. The resulted cement mortar is known as BLENDED CEMENT MORTAR. This will have improved qualities like workability, strength, and durability