http://www.cnr.it/ontology/cnr/individuo/prodotto/ID61931
Carbonatic lithotypes passivated with the ammonium oxalate treatment: colorimetric and morphological study of treated surfaces (Articolo in rivista)
- Type
- Label
- Carbonatic lithotypes passivated with the ammonium oxalate treatment: colorimetric and morphological study of treated surfaces (Articolo in rivista) (literal)
- Anno
- 2007-01-01T00:00:00+01:00 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- M. Matteini; F. Fratini; S. Rescic (literal)
- Pagina inizio
- Pagina fine
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- Titolo
- Carbonatic lithotypes passivated with the ammonium oxalate treatment: colorimetric and morphological study of treated surfaces (literal)
- Abstract
- Since the mid 1980 many researches suggested the use of calcium oxalate on carbonatic lithotypes with protection
purposes but only in 1994 a real treatment methodology was proposed. In this paper a new research
is reported to deeper investigate the effects induced by the treatment with ammonium oxalate on a number
of common carbonatic stone materials used in the Italian and European historical architecture. Some superficial
stone properties like colour and morphology are investigated. The colorimetric investigations and the
observations with the optical microscope show a lowering of the luminosity, an increase in saturation and in
some cases also a light yellowing. This behaviour seems to be related to the formation of the oxalate medium
itself that would determines both a smoothing of the surface which causes a decrease of the scattering and
a variation of the refractive index which causes an increase of the light absorption (literal)
- Prodotto di
- Autore CNR
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