Shrinkage in cement and concrete refers to the volume reduction that occurs as the concrete dries and hardens, a process primarily influenced by the loss of water through evaporation. This natural phenomenon is affected by the mixture’s components, environmental conditions, and the concrete’s age. In terms of mechanisms, shrinkage is classified into several types: plastic shrinkage, which occurs shortly after pouring when water evaporates from the surface of young concrete exposed to air; drying shrinkage, caused by the loss of water over time in a hardened concrete; and autogenous shrinkage, which results from the chemical processes of cement hydration itself. Each type of shrinkage is influenced by environmental factors such as temperature, humidity, and wind velocity, which can accelerate or decelerate the rate of evaporation and hydration (Bentz and Jensen 2004).