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Application of 29Si and 27Al magic angle spinning nuclear magnetic resonance to studies of the building materials of historical monuments

✍ Scribed by Jorge Cervantes; Guillermo Mendoza-Dı́az; Dolores Elena Alvarez-Gasca; Antonio Martinez-Richa

Publisher: Elsevier Science
Year: 1999
Tongue: English
Weight: 196 KB
Volume: 13
Category: Article
ISSN: 0926-2040
DOI: 10.1016/s0926-2040(98)00091-5

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✦ Synopsis

29 27

Ž . We report the application of Si and Al magic angle spinning nuclear magnetic resonance MAS NMR studies on building stones from historical monuments to obtain direct information about the degree of degradation and to observe the Ž . changes in the consolidated material after treatment with tetraethoxysilane TEOS . Using the data obtained from deteriorated materials, a diagnostic laboratory, a suitable treatment and recommendations for building conservation may Ž . infer. A case study is presented using stones from Guanajuato City Main Church Central Mexico . X-ray diffraction patterns to characterize the species present in the stones agree with the solid state NMR results.

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