ABSTRACT

ABSTRACT: The potential of integration of functional polymers and optical wave-guides as tools for in-situ analysis of the internal environment of civil infrastructure materials is discussed. In such hybrid sensing systems, analyte recognition is carried out through the selection process inherent within the waveguide materials, and the transduction is carried out by the guided electromagnetic radiation, which is spectrally modulated according to the level of the target species present. Summary of work on detection of moisture, pH, oxygen, oxidation states, as well as identification of products of materials dissolution are discussed.