Confocal Raman Microscopy: new perspective on the weathering of anhydrous cement

3rd International Conference on Innovative Materials, Structures and Technologies

Torres-Carrasco, M.^1 ; Del Campo, A.^1 ; De La Rubia, M.A.^2 ; Reyes, E.^2 ; Moragues, A.^2 ; Fernández, J.F.^1

Electroceramic Department, Ceramic and Glass Institute (ICV-CSIC), Kelsen 5, Madrid

28049, Spain^1

Dept. Ingeniería Civil-Construcción, Civil Engineering School, Universidad Politécnica de Madrid, Madrid

28040, Spain^2

关键词: Cementitious materials;    Confocal Raman microscopy;    Non destructive;    Non-destructive technique;    Sulphates;    Weathering process;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/251/1/012035/pdf
DOI  :  10.1088/1757-899X/251/1/012035

来源: IOP

【 摘 要 】

Raman spectroscopy when is combined with Confocal microscopy is a non-destructive technique that allow us to obtain information in cementitious materials. In this study, we present non-destructive image and structural analysis of anhydrous cement with carbonation evidences by Confocal Raman Microscopy (CRM). The results obtained by CRM show a direct relationship between the presence of the weathering processes of an anhydrous cement with the presence of sulphates and surprisingly, with the existence of amorphous carbon in the medium.