Concrete has been used in various structures all over the world since last two decades. Recently a few infrastructure projects have also seen specific application of concrete. The development of concrete has brought about the essential need for additives both chemical and mineral to improve the performance of concrete. Most of the developments across the work have been supported by continuous improvement of these admixtures. Hence varieties of admixtures such as fly ash, stone dust have been used. An attempt has been made in the present investigation to study the behavior of concrete by Partial Replacement of Cement with Fly Ash and Sand with Stone Dust. To attain the setout objectives of the present investigation, Partial Replacement of Cement with Fly Ash and Sand with stone quarry dust Used in Concrete by 5, 10, 15, 20% and 30 % respectively to produce Concrete. Concrete is tested for Compression, split tension and flexural strengths. The results are quite encouraging for use of fly ash and stone quarry dust in producing Concrete.