Geopolymer is a material which can be made by the use of industrial waste products for the 100% replacement of cement. In this present article the experimental program consists of testing of natural and recycled coarse aggregates and hardened concrete specimens is been done. The aggregate tests mainly include specific gravity, water absorption, impact value test and crushing test. The hardened concrete test consists of testing compressive strength of 150 x 150 x 150 mm concrete cube specimens at the age of 7 days and 28 days in accordance with the Indian standards. For consistency, the gradation of the recycled concrete aggregate was the same as that of the natural aggregate. At the beginning, the gradation of the natural aggregate was obtained by sieving as per standards. After crushing the hardened concrete, the recycled coarse aggregates were then sieved. The final gradation of the recycled aggregate matched that of the natural aggregates. The mix design will be carried out as per Indian standards. After the experimental work a comparative study of behavior of Geo-polymer and normal concrete with recycled aggregate has been done. Adopting normal mix design of conventional concrete to geo polymer concrete, the result of compressive strength of Geopolymer concrete is approximately 1.5 times higher than conventional concrete.