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5. Mineral composition and stone conservation of cultural heritage building materials studied by PXRD

Domenii publicaţii > Chimie + Tipuri publicaţii > Articol în revistã ştiinţificã

Autori: B. Simionescu, M. Aflori, M. Olaru

Editorial: Z. Kristallogr. Suppl. , 30, p.471-476 , 2009.

Rezumat:

For the present study two types of rock, from Spain and Romania, selected by regional significance, abundance and importance were characterized by powder x-ray diffraction (PXRD). The samples were prepared by casting the same amount of a silsesquioxane-based polymer obtained through sol-gel approach and radical polymerization of 3-(trimethoxysilyl)propyl methacrylate (TMSPMA) onto powder stones. Due to the distinct stones composition, the different polymer behaviour as regarding to these samples was evi-denced through PXRD techniques. Conclusions concerning acid resistance, stone conserva-tion and durability were revealed by using Match! Software and IUCr/COD/AMCSD data-base.

Cuvinte cheie: powder diffraction, phase identification, mineral composition, databases