| Autor: |
Colantonio C; Department of Chemistry, University of Rome 'La Sapienza', p.le Aldo Moro 5, I-00185 Rome, Italy., Baldassarri P; Città Metropolitana di Roma Capitale, U.C. 2, Servizio 3, Palazzo Valentini, Via Quattro Novembre 119a, I-00187 Rome, Italy., Avino P; Department of Agricultural, Environmental and Food Sciences (DiAAA), University of Molise, Via De Sanctis, I-86100 Campobasso, Italy., Astolfi ML; Department of Chemistry, University of Rome 'La Sapienza', p.le Aldo Moro 5, I-00185 Rome, Italy.; Research Center for Applied Sciences to the safeguard of Environment and Cultural Heritage (CIABC), University of Rome 'La Sapienza', p.le Aldo Moro 5, I-00185 Rome, Italy., Visco G; Department of Chemistry, University of Rome 'La Sapienza', p.le Aldo Moro 5, I-00185 Rome, Italy. |
| Abstrakt: |
Palazzo Valentini, the institutional head office of Città Metropolitana di Roma Capitale, stands in in a crucial position in the Roman archaeological and urban contexts, exactly between the Fora valley, Quirinal Hill slopes, and Campus Martius. It stands on a second-century A.D. complex to which belong, between other archeological remains, two richly decorated aristocratic domus. One of these buildings, the domus A , presents an outward porticoed room with a fourth-century AD central impluvium (open air part of the atrium designed to carry away rainwater) with a black/white tiled mosaic pavement, the preservation status of which is compromised by an incoherent degradation product that has caused gradual detachment of the mosaic tiles. To identify the product and determine the causes of degradation, samples of the product were taken and subjected to SEM-EDS, XRF, NMR, FT-IR and GC-MS analyses. The findings reported in this study can help restorers, archaeologists and conservation scientists in order to improve knowledge about the Roman mosaic, its construction phases, conservation problems and proper solutions. |
