Traitement de Conservation des Peintures sur Panneau

Abstract

Samples from the external facade, internal pillars, wall and floor mosaics of the Cathedral of Salerno and mosaic samples from the Cathedral Museum were examined by X-ray diffraction, thermo-differential analysis and by thermo-gravimetric analysis. They were shown to be lime mortars containing varying amounts of an inert fraction such as dolomite, quartz, microcline, sanidine, diopside, analcime and augite. The predominant binder was calcite deriving from Ca(OH)₂ The existence of relicts of Ca(OH)₂ and Mg(OH)₂ of low crystallinity in some samples is discussed.