Solids used in road construction can be analysed with a hand-held Raman spectrometer.
The materials examined are conventional pigments and resins, e.g., CaCO3, TiO2 and DEGALAN®. The measured spectra differ considerably from one another. In order to assess the main differences between the chemical structures, the peaks of the spectra were assigned to the functional groups that generated them.
Different materials such as paints, (white) pigments, and resins are commonly used in the construction of roads. Together with glass beads (used for night- visible road marking) and various other materials, they help us to get safely from A to B.
In this study, different road-making materials were analysed using Metrohm handheld Raman analyser (MIRA). The gathered spectra were compared with each other to see the main differences in the functional groups. The analysis proved that Mira is suited for the differentiation of such materials.