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The application of Raman spectroscopy in the study of the corrosion of steel reinforcement in concrete is critically reviewed. The Raman effects of all the possible products formed during passivation and corrosion are individually reviewed first with an attempt to identify the characteristic peaks and corresponding assignments, which could potentially be a useful reference for future application. The capability of Raman spectroscopy in characterising the passivation and corrosion process under real conditions are then demonstrated and critically reviewed. Finally, the challenges and potential solutions of using Raman spectroscopy are discussed together with some perspectives for future work.
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Mi et al. (2023) studied this question.
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