Energy-dispersive X-ray (EDX) spectroscopy, often used in conjunction with scanning electron microscopy (SEM), is a powerful analytical technique for characterizing the elemental composition of materials at the microscale. In the context of cement and concrete, EDX provides detailed insights into the distribution of elements within the material, which is crucial for understanding the chemistry of cement hydration, the presence of contaminants, and the effectiveness of additives. This technique is particularly valuable in assessing the long-term durability and environmental resilience of concrete structures exposed to severe conditions, such as saline or corrosive environments, extreme temperatures, and high mechanical stress.