Concrete plays the key role and a large quantum of concrete is being utilized in every construction practices. Quarry Dust which is a other non-voluble waste material after the extraction and processing of rocks to form fine particles less than 4.75mm.The Quarry dust can be an alternative to the river sand since river sand is expensive due to excessive cost of transportation from natural sources and also large scale depletion of these sources creates environmental problems .In this project work the usage of different quarry dusts by studying the physical and chemical properties, workability of the quarry dust concrete, with different ratios of 0%, 20%, 30%&40% for M20 grade of concrete behavior of quarry dust reinforced cement concrete beams, Sieve analysis was conducted for quarry dust and sand. Mix design has been developed using IS Mix Design for various proportion of four different quarry dust with river sand. Tests were conducted on cubes and cylinders to study the compressive and tensile strengths of concrete made of various proportion of quarry dust with river sand, optimum strength test values of various proportion of different quarry dust with river sand and the results were compared with natural sand.