FOR- MANOJ KUMAR PANDEY – PETROGRAPHIC ANALYSIS Experimental Setup (phase-I)—ALREADY DONE In this work some testing on concrete made from sand, gravel, and crushed stones. For the experiment we used these aggregates from 5 different sites in Chhattisgarh. The results are to show the best material used as aggregates to improve the strength properties of concrete. Samples of aggregates are taken from the following sites in Chhattisgarh: ⚫ SEMARIA. ⚫ KODWA. ⚫ CHUNKATTA. ⚫ NADNDINI. ⚫ PATHARIA. ⚫ ……IT WAS ALREADY COMPLETED……………………………………………………………… ##### NOW ADD FOLLOWING PLACES. Experimental Setup (phase-II) In this work some testing on concrete made from sand, gravel, and crushed stones. For the experiment we used these aggregates from 5 different sites in Chhattisgarh. The results are to show the best material used as aggregates to improve the strength properties of concrete. Samples of aggregates are taken from the following sites in Chhattisgarh: ⚫ CHHOTE KADAMA DARBHA BASTAR ⚫ TAKARAGUDA BASTER ⚫ GOJI KURUD DHAMTARI ⚫ MOPAR BALODA BAZAR ⚫ KUKURDIH BALODA BAZAR