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Martedì, 14 Febbraio 2012 14:04

MESOAMERICAN MURAL PAINTINGS. PHYSICO-CHEMICAL CHARACTERIZATION OF MATERIALS AND APPLICATION OF CALCIUM HYDROXIDE NANOPARTICLES FOR CONSOLIDATION

Lorenza Bernini
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MESOAMERICAN MURAL PAINTINGS. PHYSICO-CHEMICAL CHARACTERIZATION OF MATERIALS AND APPLICATION OF CALCIUM HYDROXIDE NANOPARTICLES FOR CONSOLIDATION

Lorenza Bernini* * C.S.G.I. University of Florence, Italy (Questo indirizzo email è protetto dagli spambots. È necessario abilitare JavaScript per vederlo.)

Abstract
Painting techniques, used by Mesoamerican people to make their murales in the pre-Columbian era, are partially unknown. In this study it was tried to improve the knowledge of these techniques. Pigments, dyes and mortars were analyzed and also the deterioration causes of the paintings were investigated. Painting samples from three archaeological sites were collected and analyzed using optical microscopy for the optic observations and FTIR spectroscopy to analyze the main compounds of paintings, both organic and inorganic, but also secondary compounds produced by deterioration processes. XRD was used to analyze inorganic pigments and SEMEDS to study cross-sections. The diagnostic was made with the aim to have a previous restoration before applying a consolidation treatment. This will make possible to accurately remove of the degradation process and to proceed with the consolidation treatment with hydroxide nanoparticles for the consolidation of painted surface.
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Letto 1304 volte Ultima modifica il Giovedì, 12 Febbraio 2015 17:32

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