Characterization of principal clinker minerals by FT-Raman microspectroscopy
Commercial and synthetic clinker minerals have been analyzed by Fourier Transform (FT) Raman microspectroscopy. The spectra of synthetic polymorphs of C 3S and β C 2S are compared to their counterparts in commercial clinker. Identification of the calcium silicate phases by FT Raman microscopy confor...
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Published in | Cement and concrete research Vol. 24; no. 5; pp. 959 - 965 |
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Main Authors | , , |
Format | Journal Article |
Language | English |
Published |
New York, NY
Elsevier Ltd
1994
Elsevier Science |
Subjects | |
Online Access | Get full text |
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Summary: | Commercial and synthetic clinker minerals have been analyzed by Fourier Transform (FT) Raman microspectroscopy. The spectra of synthetic polymorphs of C
3S and β C
2S are compared to their counterparts in commercial clinker. Identification of the calcium silicate phases by FT Raman microscopy conforms with XRD diffractograms. C
3S is easily distinguishable from C
2S. The main band of the synthetic C
3S polymorphs correspond to the out-of-plane Si-O bending
ν
4, and it is shifted to higher energy for the commercial C
3S. The main band for the C
2S minerals corresponds to the asymmetric Si-O stretching
ν
3. However, the reported spectra differ from other literature results designating the
ν
1 SiO
4 vibration as the predominant lines characterizing calcium silicates. The analyses for synthetic C
3A polymorphs and C
4AF conform with the published data. |
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Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
ISSN: | 0008-8846 1873-3948 |
DOI: | 10.1016/0008-8846(94)90016-7 |