Impact strength in the context of cement and concrete refers to the material’s ability to withstand sudden and forceful impacts without failing. This characteristic is crucial for structures exposed to dynamic loads or harsh environmental conditions, such as seismic activities, extreme temperatures, or chemical exposures. Activated coal gangue, a byproduct of coal mining, is treated (activated) to improve its pozzolanic properties, making it suitable as a supplementary cementitious material (SCM). By incorporating activated coal gangue into cement and concrete, the materials can exhibit enhanced durability and strength characteristics due to the pozzolanic reactions which contribute to the formation of additional cementitious compounds.