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Cement, fine aggregate, coarse aggregate and water are important constitutes of concrete that are obtained naturally. So we can replace new materials instead of natural sources such as M Sand, fly ash, Metakaolin, etc. Aim of this project is to study the strength properties of the concrete by partially replacing coarse aggregate by waste Cuddapah stones and using PPC-Fly ash based as cement. This thesis covers the properties of materials and mix proportions, preparation of concrete with waste Cuddapah stones, hardened state characteristics, and influence of various parameters on hardened state concrete and utilization of various materials in the structural members. Waste Cuddapah stones (WCS) were partially replaced as coarse aggregates in 20%, 40% and 60% respectively are casted and tested for 7 and 28 days. Fresh and hardened concrete properties are evaluated by workability test, compressive strength and split tensile test with a fixed water cement ratio 0.4. The test results were compared with the conventional concrete properties and show that there is an increase in strength of the concrete.

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