Abstract
| Lingua originale | English |
|---|---|
| pagine (da-a) | 424-432 |
| Numero di pagine | 9 |
| Rivista | Strain |
| Volume | 45 |
| Stato di pubblicazione | Published - 2008 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Mechanics of Materials
- Mechanical Engineering
Cita questo
Effectiveness of Preservative Treatmentson Coloured Ruditic Building Stones. / Rizzo, Giovanni; Megna, Bartolomeo; Ercoli, Laura.
In: Strain, Vol. 45, 2008, pag. 424-432.Risultato della ricerca: Article
}
TY - JOUR
T1 - Effectiveness of Preservative Treatmentson Coloured Ruditic Building Stones
AU - Rizzo, Giovanni
AU - Megna, Bartolomeo
AU - Ercoli, Laura
PY - 2008
Y1 - 2008
N2 - The dark grey Breccia di Billiemi and the Ammonitico Rosso of Piana degli Albanesi, twocoloured stones widely used in monuments both outdoor and indoor in Sicily, undergo significant decay as effect of weathering: colour change and development of surface microcracks which affect not only the chromatic aspect but also the state of aggregation. In a previous study (Fracture and Failure of Natural Building Stones, 2006, Springer, Dordrecht, The Netherlands: 329), such effects were successfully reproduced on laboratory samples by means of artificial accelerated weathering and thedifferent response of veins and grains to the ageing agents was related to the microstructure of stones. In this study, the effect of accelerated washout and acid etching is evaluated both on untreatedsamples and after the application of four commercial preservative products. The development of decay phenomena is monitored by means of weight measurements and image analysis, coupled with optical microscopy, the last evidencing a selectivity in the effectiveness of treatments on the differenttextural components of the lithotypes. The effect of treatments on the stones is also investigated by contact angle measurements on different areas.
AB - The dark grey Breccia di Billiemi and the Ammonitico Rosso of Piana degli Albanesi, twocoloured stones widely used in monuments both outdoor and indoor in Sicily, undergo significant decay as effect of weathering: colour change and development of surface microcracks which affect not only the chromatic aspect but also the state of aggregation. In a previous study (Fracture and Failure of Natural Building Stones, 2006, Springer, Dordrecht, The Netherlands: 329), such effects were successfully reproduced on laboratory samples by means of artificial accelerated weathering and thedifferent response of veins and grains to the ageing agents was related to the microstructure of stones. In this study, the effect of accelerated washout and acid etching is evaluated both on untreatedsamples and after the application of four commercial preservative products. The development of decay phenomena is monitored by means of weight measurements and image analysis, coupled with optical microscopy, the last evidencing a selectivity in the effectiveness of treatments on the differenttextural components of the lithotypes. The effect of treatments on the stones is also investigated by contact angle measurements on different areas.
KW - coloured stones
KW - luminosity
KW - preservatives
KW - weathering
UR - http://hdl.handle.net/10447/43383
M3 - Article
VL - 45
SP - 424
EP - 432
JO - Strain
JF - Strain
SN - 0039-2103
ER -