Application of Raman Spectroscopy in the Concrete Field
By S. Takaya and Y. Hamura
Concrete Journal, Vol.59, No.11, Nov. 2021
- Synopsis
- To clarify the mechanisms of deterioration, numerous studies have been conducted using SEM-EDX, X-ray diffraction, EPMA, and so on. However, many aspects of deterioration mechanisms still remain to be elucidated. In addition to the above analyses, the authors are also investigating the use of Raman spectroscopic analysis. This report explains the principle of Raman spectroscopy and introduces the application of Raman spectroscopy to the evaluation of the corrosion products of iron, which is a metallic material, and aggregate, which is an inorganic material. Furthermore, the authors propose a deterioration index using Raman spectroscopy based on the phenomenon of the increase of fl uorescent substances when organic surface coating materials deteriorate.
- Keywords:
- Raman spectroscopy, Rebar corrosion, Alkali-silica reaction, Surface coating material
