000002984 001__ 2984
000002984 005__ 20141118153412.0
000002984 04107 $$acze
000002984 046__ $$k2010-09-22
000002984 100__ $$aSandrolini, F.
000002984 24500 $$aEnvironmental decay of ancient stucco decorations subject to outdoor exposure

000002984 24630 $$n2.$$pHistoric Mortars and RILEM TC 203-RHM Final Workshop
000002984 260__ $$bRILEM Publications s.a.r.l., 157 rue des Blains F-92220 Bagneux - France
000002984 506__ $$arestricted
000002984 520__ $$2eng$$aNeoclassical “stucco” decorations were added in 1840 to the 14th century church of San Francesco in Fano (Italy) in order to decorate its interior, but, as a consequence of the roof demolition in 1930, they have been exposed to outdoor conditions for almost 80 years. In view of a possible restoration work without reconstruction of the roof, this study aims to assess the vulnerability of the stucco decorations, by characterizing the constituting materials, identifying the degradation mechanisms and evaluating the stucco’s conservation state. Firstly, an analysis of microclimatic and air quality data of the surroundings of the church was performed to evaluate the environmental aggressiveness and the possible degradation causes. Then the stuccoes were characterized in order to evaluate their articulation in multiple layers, to identify their mineralogical composition and possible presence of organic additives, to determine their pore size distribution and to assess their conservation state. In spite of their gypsum nature, the relatively good conservation state of the stuccoes seems to be ascribable to the finishing layers, realized with the addition of lime (giving calcite, less soluble than gypsum) and/or worked to reduce porosity, so that stucco decorations designed for sheltered conditions proved to be partially resistant to outdoor environment.

000002984 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000002984 653__ $$a

000002984 7112_ $$a2nd Conference and of the Final Workshop of RILEM TC 203-RHM$$cPrague (CZ)$$d2010-09-22 / 2010-09-24$$gHMC2010
000002984 720__ $$aSandrolini, F.$$iSassoni, E.$$iFranzoni, E.
000002984 8560_ $$ffischerc@itam.cas.cz
000002984 8564_ $$s662348$$uhttp://invenio.itam.cas.cz/record/2984/files/page_0701.pdf$$y
             Original version of the author's contribution as presented on CD, , page 701.
            
000002984 962__ $$r2907
000002984 980__ $$aPAPER