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28° Convegno Internazionale Scienza e Beni
culturali LA CONSERVAZIONE DEL PATRIMONIO ARCHITETTONICO ALL'APERTO SUPERFICI, STRUTTURE, FINITURE E CONTESTI Bressanone, 10 13 luglio 2012 |
info: ARCADIA RICERCHE SRL |
Roberta Parisi1, Sara Penoni2, Cristiana Todaro2, Cristiano Riminesi3, Alberto Morselli4
1 Laureata in ‘Scienze per i beni culturali’ presso l’Università degli Studi di Firenze con tesi di laurea svolta presso l’IFAC CNR di Firenze, parisi.ro@gmail.com
2Restauratrici, Faberestauro s.n.c, Piazza Ginori 13, 50019 – Sesto Fiorentino (Fi), faberestauro@libero.it
3ICVBC, via Madonna del Piano 10 - Sesto Fiorentino (Fi), c. riminesi@icvbc.cnr.it
4Architetto, Ufficio tecnico Comune di Scandiano, (RE), a.morselli@comune-scandiano.re.it
ABSTRACT
The courtyard of the fortress of Boiardo in Scandiano was decorated with important wall paintings were made by emilian painter Nicolò dell’Abate, in the middle of the sixteenth century. The rich decoration occupied all sides of the courtyard but today only few fragments are survivors. One of which represents a warrior in armor with helmet and shield. The loss of many parts of this area probably is due to aggressive pollutants also favored by the wet weather. In June 2011 started an important diagnostic project aimed at studying of the fragment that decorate the entrance of the fortress. First of all, to develop this project, were used non-invasive techniques. By non-invasive Microwave Dielectric Spectroscopy, was possible to show the presence of rising humidity with plenty of soluble salts. Instead by non invasive technique of Fiber Optic Reflectance Spectroscopy was possible to characterize the materials were used to realize wall paintings and substrate and to identification the products of degradation that may be present. After has been useful to further study and materials characterizations by analysis of micro-invasive samples (Infra Red spectroscopy). This diagnostic project has highlighted a very compromise situation cause mainly by environmental conditions. This observation impose a difficult choise of conservation strategies that are not restricted to only restoration work.
Key-words: wall paintings, weathering, pollutants, soluble salts, rising humidity.