The modulus of elasticity (MoE) is a fundamental mechanical property of concrete that measures its stiffness or rigidity. It defines the ability of concrete to deform elastically under stress, which is crucial for ensuring the structural performance and serviceability of concrete constructions. The MoE of concrete is influenced by the properties of its constituents—cement, aggregates, and admixtures—and their proportions. In environments with severe conditions such as extreme temperatures, heavy loads, or aggressive chemical exposure, the MoE plays a critical role in determining the durability and longevity of concrete structures.