Fiberoptical and Microwave Sensors for Health Monitoring in Concrete Structures

tive Monitoring ” microwave and optical sensors for online monitoring of concrete structures are developed, tested and optimized. The sensors will be employed to measure mechanical quantities such as lengthening or fatigue, and chemical attack by indicating moisture and the concentration of damaging ions like Cl , NH 4, SO2 4, or Mg2 in concrete. The project requires an interdis-ciplinary work of researchers in the fields of photonics, microwave technology, organic chemistry and civil engineering. 1