The Present study focused on the Manufacturing Process and Properties of Alkali Activated Coarse Aggregate (AACA). The manufacturing process of Alkali Activated Coarse Aggregate using the Pelletization technique. Pelletization technique which converts fine powder to Spherical or Semi spherical units. Ground Granulated Blast Furnace Slag is a source material and an alkali activator solution is used as a binder solution. The alkali activator is Sodium Hydroxide and Sodium silicate s used. The concentration of sodium hydroxide 6M is used and the ratio of Sodium Silicate to Sodium Hydroxide is 2.5. The physical and chemical properties of AACA and NCA are studied. The results show that the physical properties of both the aggregate are similar except for water absorption and abrasion value. It can be attributed that water absorption is more presence of voids. The chemical properties of Alkali Activated Coarse Aggregate (AACA) and Natural Coarse Aggregate (NCA) are obtained from Energy Dispersive X –ray Analysis (EDX). It is observed that silica content is more in NCA may be the reason for better Crushing and Impact Value than AACA

Pelletization, Alkali Activated Coarse Aggregate, molarity