Capillary transport in cement and concrete refers to the movement of fluids within the capillary pores of the concrete matrix due to capillary action. This phenomenon is crucial in determining the rate and extent of moisture migration within concrete structures, influencing both their mechanical properties and durability. Capillary transport can lead to significant issues such as efflorescence, corrosion of reinforcement, and freeze-thaw damage, especially under severe environmental conditions. Understanding this transport mechanism is key to improving concrete durability and extending the lifespan of concrete structures in challenging environments.