The use of calcarenitic stones in the constructions of historic and artistic interest is widespread in the regions of the Mediterranean area. These materials, known with different local names (Matera calcarenite, Lecce stone, Malta calcarenite, etc ..), are characterized by the easiness of quarrying and processing in complex shapes as well. The calcarenitic materials also have a high porosity that makes them poorly durable and vulnerable to different degradation phenomena caused by the synergistic action of physical, chemical and biological agents. The types and the extent of the degradation phenomena vary according to the environment in which the artefact is located. Consequently, each intervention of restoration should be considered as a unique case due to the complex relationships that occur between the materials, the exposure environment and the different types of products used in the restoration works. This paper describes the degradation phenomena of calcarenitic materials in different exposure environments and illustrates the results obtained in the last decades from the application of protective and consolidating products, highlighting their weaknesses and strengths.

HERITAGES OF STONE: MATERIALS DEGRADATION AND RESTORATION WORKS

GUIDA, Antonella Grazia
Methodology
;
BERNARDO, Graziella
Investigation
2015-01-01

Abstract

The use of calcarenitic stones in the constructions of historic and artistic interest is widespread in the regions of the Mediterranean area. These materials, known with different local names (Matera calcarenite, Lecce stone, Malta calcarenite, etc ..), are characterized by the easiness of quarrying and processing in complex shapes as well. The calcarenitic materials also have a high porosity that makes them poorly durable and vulnerable to different degradation phenomena caused by the synergistic action of physical, chemical and biological agents. The types and the extent of the degradation phenomena vary according to the environment in which the artefact is located. Consequently, each intervention of restoration should be considered as a unique case due to the complex relationships that occur between the materials, the exposure environment and the different types of products used in the restoration works. This paper describes the degradation phenomena of calcarenitic materials in different exposure environments and illustrates the results obtained in the last decades from the application of protective and consolidating products, highlighting their weaknesses and strengths.
2015
9788490483862
File in questo prodotto:
File Dimensione Formato  
ReUSO_2015 Heritage of Stone-Materials_Bernardo.pdf

solo utenti autorizzati

Tipologia: Documento in Post-print
Licenza: DRM non definito
Dimensione 1.5 MB
Formato Adobe PDF
1.5 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11563/114905
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact