Cit:Benkhalifa.etal:2017

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Autor Benkhalifa, Sara; Vergès-Belmin, Véronique; Rolland, Olivier; Leroux, Lise
Jahr 2017
Titel Tracing back the origins of sodium sulfate formation on limestone as a consequence of a cleaning campaign: the case study on Charité and Espérance sculptures of Chartres cathedral
Bibtex @inproceedings {Benkhalifa.etal:2017,

title = {Tracing back the origins of sodium sulfate formation on limestone as a consequence of a cleaning campaign: the case study on Charité and Espérance sculptures of Chartres cathedral}, booktitle = {Proceedings of SWBSS 2017. Fourth International Conference on Salt Weathering of Buildings and Stone Sculptures, University of Applied Sciences Potsdam, Germany, 20-22 September 2017}, year = {2017}, editor = {Laue, Steffen}, pages = {219-228}, month = {september}, organization = {Fachhochschule Potsdam}, publisher = {Verlag der Fachhochschule Potsdam}, note = {fulltext, conference paper}, key = {SWBSS2017}, doi = {10.5165/hawk-hhg/339}, author = {Benkhalifa, Sara; Vergès-Belmin, Véronique; Rolland, Olivier; Leroux, Lise} }

DOI 10.5165/hawk-hhg/339
Link Datei:SWBSS 2017 Proceedings 219-228 Benkhalifa Verges-Belmin Rolland Leroux.pdf
Bemerkungen in: Proceedings of SWBSS 2017 - Fourth International Conference on Salt Weathering of Buildings and Stone Sculptures. University of Applied Sciences, Potsdam, Germany, 20-22 September 2017


Eintrag in der Bibliographie

[Benkhalifa.etal:2017]Benkhalifa, Sara; Vergès-Belmin, Véronique; Rolland, Olivier; Leroux, Lise (2017): Tracing back the origins of sodium sulfate formation on limestone as a consequence of a cleaning campaign: the case study on Charité and Espérance sculptures of Chartres cathedral. In: Laue, Steffen (Hrsg.): Proceedings of SWBSS 2017. Fourth International Conference on Salt Weathering of Buildings and Stone Sculptures, University of Applied Sciences Potsdam, Germany, 20-22 September 2017,Verlag der Fachhochschule Potsdam 219-228, 10.5165/hawk-hhg/339Link zu Google ScholarLink zum Volltext

Abstract[Bearbeiten]

In 2012, five years after cleaning by Mora paste, sodium sulfate related deterioration was noticed on two XVIIIth century limestone sculptures of Chartres cathedral. This paper presents the results of the diagnostic study and of the conservation intervention performed on these sculptures, with a focus on trials to determine the salt phases responsible for their deterioration. The methodology chosen includes mineralogical and chemical analyses of samples collected on the sculptures during the diagnostic phase and after kaolin-based poultice desalination (XRD, quantification of soluble salts, SEM-EDS), but also mineralogical analyses of the salts extracted from the poultices. Mora paste chemicals (and in particular EDTA disodium salt) are probably responsible for the quick deterioration of the sculptures through complex and unidentified chemical pathways : at least two of the mineral phases found in this case study are not present in the JCPDS data base on mineral phases. It is proposed to set up an inventory of unidentified phases found in case studies similar to this one, in order to gather the knowledge spread in different institutions, and later to build scientific projects on the topic of EDTA-related deterioration.

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X-ray diffraction = Röntgenbeugung