Deterioration of the black Drenov Gric limestone on historical monuments (Ljubljana, Slovenia)
- Author(s)
- Sabina Kramar, Ana Mladenovic, Helmut Pristacz, Breda Mirtic
- Abstract
The black limestone from Drenov Gric quarry (Central Slove¬nia) is considered one of the most beautiful Slovenian natural stones due to its typical color. The limestone was character¬ized from mineralogical, chemical, and petrophysical points of view. Furthermore, deterioration phenomena of the limestone from two monuments exposed to indoor and outdoor environ¬ments were studied. In situ investigation of two monuments by means of monument mapping has identified several types of deterioration phenomena, such as granular disintegration, flaking, crumbling, efflorescences, crusts, and the presence of microorganisms. Samples were characterized using Opti¬cal Microscopy (OM), Scanning Electron Microscopy (SEM) coupled with Energy Dispersive Spectroscopy (EDS), X-Ray Powder Diffraction Analysis (XRD), porosity accessible to wa¬ter under vacuum, capillary absorption, Mercury porosimetry (MIP), and Ar-sorption. Although very low values of porosity of the fresh stone as well as slow capillary kinetics were de¬termined, both monuments showed severe deterioration as a consequence of the transport and precipitation of soluble salts within the stone.
- Organisation(s)
- Department of Mineralogy and Crystallography
- External organisation(s)
- University of Ljubljana, Slovenian National Building and Civil Engineering Institute
- Journal
- Acta Carsologica
- Volume
- 40
- Pages
- 483-495
- No. of pages
- 13
- ISSN
- 0583-6050
- Publication date
- 2011
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 105116 Mineralogy
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/6a345051-3455-4d29-9313-fcda57dbf1a5