Cultural Heritage objects built from calcareous material are often exposed to adverse environmental conditions which may cause significant damage. The so called nano lime has been used to protect and conserve them. The Czech, German and Italian scientists - among them our colleagues from Centre Telč ITAM CAS, Radek Ševčík, Dita Machová and Alberto Viani - studied the efficiency of the material in protecting the cultural heritage objects in Heinz Maier-Leibnitz Zentrum (MLZ). They used only non-invasive methods.
Their reasearch is described in more detail at the MLZ web page here: https://mlz-garching.de/englisch/news-und-press/news-articles/conservation-nanolime-used-to-prevent-decay.html?back=yes
Original article: Ševčík, R., Viani, A., Mancini, L. et al. Investigation of nano-microstructural changes in Maastricht limestone after treatment with nanolime suspension. Appl. Phys. A 126, 367 (2020). https://doi.org/10.1007/s00339-020-03567-6
Cloister of the Xanten Cathedral: The columns are preserved with nano lime.
© Wikipedia (Rolfcosar / CC BY-SA, https://commons.wikimedia.org/wiki/ File:Xantener_Dom_Kreuzgang.jpg)
9 Nov 2020