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X-ray computed micro-tomography to study the porous structure and degradation processes of a building stone from Sabucina (Sicily)

Simona Raneri, Veerle Cnudde, Tim de Kock, Hannelore Derluyn, Germana Barone and Paolo Mazzoleni
X-ray computed micro-tomography to study the porous structure and degradation processes of a building stone from Sabucina (Sicily) (in Characterization, diagnosis and conservation of cultural heritage, Germana Barone (prefacer) and Pierfranco Lattanzi (prefacer))
European Journal of Mineralogy (June 2015) 27 (3): 279-288

Abstract

Understanding the behaviour of building stones when they are subjected to weathering processes represents an important research field related to the conservation and restoration of Cultural Heritage. Salt growth is a significant cause of damage for natural stones. In addition to the properties of the salt and the climatic conditions, the effects of salt weathering are strongly related to the structural and textural features of materials. Therefore, detailed knowledge of the internal structure of building stones is fundamental in order to estimate durability and prevent degradation processes.In this work we show the potential of X-ray micro-tomography in understanding the mechanism by which salts can damage building materials. In detail, we focus on weathering effects due to sodium sulphate on a calcarenite from Sabucina (Sicily) widely used as local building and replacement stone. Overall, the obtained results allow for visualisation and quantification of the changes in the porous structure caused by salt crystallization, supporting the comprehension on how the pore network is modified in coarsegrained stone materials. In particular, salt weathering induces fractures in Sabucina stone, leading to an increase of the total porosity. The resulting pores are characterized by a higher maximum opening and equivalent diameter compared to the pores of a freshly quarried stone.


ISSN: 0935-1221
EISSN: 1617-4011
Serial Title: European Journal of Mineralogy
Serial Volume: 27
Serial Issue: 3
Title: X-ray computed micro-tomography to study the porous structure and degradation processes of a building stone from Sabucina (Sicily)
Title: Characterization, diagnosis and conservation of cultural heritage
Author(s): Raneri, SimonaCnudde, Veerlede Kock, TimDerluyn, HanneloreBarone, GermanaMazzoleni, Paolo
Author(s): Barone, Germanaprefacer
Author(s): Lattanzi, Pierfrancoprefacer
Affiliation: University of Catania, Department of Biological, Geological and Environmental Sciences, Catania, Italy
Affiliation: University of Catania, Catania, Italy
Pages: 279-288
Published: 201506
Text Language: English
Publisher: Schweizerbart'sche Verlagsbuchhandlung (Naegele u. Obermiller), Stuttgart, Germany
Meeting name: International school innovative methodologies for the characterisation, diagnosis and conservation of the cultural heritage
Meeting location: Catania, ITA, Italy
Meeting date: 20140701July 1-4, 2014
References: 36
Accession Number: 2015-087032
Categories: Quaternary geologySedimentary petrology
Document Type: Serial Conference document
Bibliographic Level: Analytic
Illustration Description: illus. incl. 2 tables, geol. sketch map
N37°30'10" - N37°30'10", E14°07'16" - E14°07'16"
Secondary Affiliation: University of Cagliari, ITA, ItalyGhent University, BEL, Belgium
Country of Publication: Germany
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Abstract, copyright, Schweizerbart'sche Verlagsbuchhandlung. Reference includes data from GeoScienceWorld, Alexandria, VA, United States
Update Code: 201537
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