The granular fraction in cement and concrete refers to the aggregate components—typically sand, gravel, and crushed stone—that make up the bulk of the concrete mixture. These granular materials play a crucial role in determining the structural integrity, durability, and overall performance of concrete. Aggregates not only provide dimensional stability and volume but also significantly influence the concrete’s mechanical properties, such as compressive strength, elasticity, and shrinkage characteristics. In severe environmental conditions, the choice and proportion of these granular materials become even more critical as they must be capable of withstanding chemical attacks, freeze-thaw cycles, and mechanical stresses without deteriorating.