Salt Weathering of Natural Stone

A Review of Comparative Laboratory Studies

Bibliographic Data

ID16966732
AuthorsCarlos Alves (0000-0003-3943-3340, University of Minho, corresponding author), Carlos A M Figueiredo (0000-0003-1093-1522, University of Lisbon), Jorge Sanjurjo-Sánchez (0000-0002-7559-8647, Universidade da Coruña), Ana C Hernández (Universidade da Coruña)
Year2021
Volume4
Issue3
Pages1554-1565
Publication date2021-08-03
Open AccessYes
TypeARTICLE
VenueHeritage (JOURNAL)
Journal identifiersISSN: 2571-9408 • E-ISSN: 2571-9408
PublisherMDPI AG (PUBLISHER • IT)
DOI10.3390/heritage4030086
OpenAlexW3190655016
LanguageEN
Citations received9
References cited42

Natural stone is an important component of historical heritage (buildings and art objects such as sculptures or rock engravings), and it is still widely used in contemporary works. Soluble salts are the main erosive agent in the built environment, and we review here comparative studies that subject the same rock type to testing with different salt solutions. The results mostly support the accepted notion of the major impact of sodium sulphate, although there are some exceptions. The effects of sodium chloride and calcium sulphate deserve specific discussion given field information on the relevance of these specific salts in the built environment. We relate the information collected to the issues of risk assessment (considering both geochemical conditions and salt effects) and conservation interventions (highlighting the interest of tests that do not produce damage to susceptible materials) and present some methodological suggestions to avoid a case study culture

Archaeology · Earth science · Geochemistry · Political science · Rock art · Weathering · Building materials and conservation · Computer Science · Conservation Techniques and Studies · Cultural Heritage Materials Analysis · History · Geology

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