Equivalent circuit models are analytical tools used to represent the complex impedance behaviors of materials in a simplified electrical circuit form. In the context of cement and concrete, these models are particularly useful for understanding the electrochemical processes and moisture movement within the material’s microstructure. This method is essential for assessing the durability and health of concrete structures, especially when exposed to severe environmental conditions such as corrosion-inducing climates, freeze-thaw cycles, and water ingress.