Palazzo San Michele is located in Fano on the decumanus maximus, until a few years ago an important road with heavy traffic, now a pedestrian precinct. It was built in the second half of fifteenth century and it is a fine example of Renaissance architecture. During its history it has suffered many alterations and changes in attempt to rebuilt and extend the original structure. The architect Alberto Calzabini restored it to its present appearance in 1925-1926. The facade of the building and the interior courtyard show severe deterioration of the stone materials due to the exposure to the combined action of natural weathering and strong urban pollution. In areas more protected from rain-wash, the stone surfaces are covered with black crusts, soot deposits and yellowish-grey patinas. On the contrary, white areas have been observed where the surfaces are exposed. Furthermore, the stone materials present many problems of deterioration, such as detachment, cracking, loss of materials, corrosion, exfoliation, and fracturing, and which are related to freeze-thaw cycles, migration of soluble salts and rising damps. The present work reports on the results of the investigations on the building materials (stone, bricks and palsters) and the degradation products obtained analysing the different sample typologies by optical microscopy, x-ray diffraction, electron scanning microscopy and microanalyses EDS, ion cromatografy.
The effects of interaction between environment and constituent materials of Palazzo San Michele in Fano (PU)
AMADORI, MARIA LETIZIAWriting – Original Draft Preparation
;MANGANI, FILIPPOVisualization
2003
Abstract
Palazzo San Michele is located in Fano on the decumanus maximus, until a few years ago an important road with heavy traffic, now a pedestrian precinct. It was built in the second half of fifteenth century and it is a fine example of Renaissance architecture. During its history it has suffered many alterations and changes in attempt to rebuilt and extend the original structure. The architect Alberto Calzabini restored it to its present appearance in 1925-1926. The facade of the building and the interior courtyard show severe deterioration of the stone materials due to the exposure to the combined action of natural weathering and strong urban pollution. In areas more protected from rain-wash, the stone surfaces are covered with black crusts, soot deposits and yellowish-grey patinas. On the contrary, white areas have been observed where the surfaces are exposed. Furthermore, the stone materials present many problems of deterioration, such as detachment, cracking, loss of materials, corrosion, exfoliation, and fracturing, and which are related to freeze-thaw cycles, migration of soluble salts and rising damps. The present work reports on the results of the investigations on the building materials (stone, bricks and palsters) and the degradation products obtained analysing the different sample typologies by optical microscopy, x-ray diffraction, electron scanning microscopy and microanalyses EDS, ion cromatografy.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
