Wedekind, Wanja; T., Kracke; T., Licha; Siegesmund, S.:
Object-specific desalination of tomb monuments
15.09.2008
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Historical and present-day photo showing the conditin of the Sielentz obelisk exhibits strong weathering and a loss of ornamental designd.
In an interdisciplinary project, object-specific desalination methods have been developed and carried out on seven prominent burial monuments and two mausoleums at the Bartholomew Cemetery in Goettingen (Germany). The monuments were constructed from the local sandstone (Buntsandstein). The methods discussed in this study are desalination in a water bath, cyclical sprinkling and capillary flow desalination. To verify the effectiveness of the applied methods, the salt content in the rinse-fluids were measured during the salt reduction process. Furthermore, the salt content was measured on eluted drill cuttings samples before and after the salt lowering procedure. Determination of salt impact was carried out by measurement with an ion chromatograph and by electrical conductivity. The different salt phases were determined by means of x-ray diffractometry analysis. The primary purpose of the project was to optimise the efficiency of the desalination treatments to further a sustainable conservation of the monuments.
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10.5165/hawk-hhg/220
