Damage sensing in the context of cement and concrete refers to the methods and technologies used to detect and quantify damage within these materials, particularly in severe environmental conditions such as extreme temperatures, chemical exposure, or heavy mechanical loads. This capability is crucial for ensuring the longevity and safety of concrete structures like bridges, tunnels, and buildings. Advanced damage-sensing techniques include the use of smart sensors embedded within the concrete, the application of nondestructive testing methods such as acoustic emission, and the integration of innovative materials like self-healing concrete. These technologies not only detect the early stages of damage but also provide data that can be used to predict the future health of the structure, thereby facilitating timely maintenance and repairs.