Deterioration of Lesno Brdo limestone on monuments (Ljubljana, Slovenia)
- Autor(en)
- Sabina Kramar, Ana Mladenovic, Maja Urosevic, Alenka Mauko, Helmut Pristacz, Breda Mirtic
- Abstrakt
This study deals with the characterization of Lesno Brdo limestone, widely used in the construction of Slovenian historical monuments as well as modern buildings. Samples of this limestone were subjected to a detailed investigation, using a number of different techniques: optical microscopy, scanning electron microscopy with EDS, X-ray powder diffraction, analysis by ICP-ES, porosity accessible to water under vacuum, capillary absorption, mercury intrusion porosimetry, gas sorption and ultrasonic velocity measurements.The object of these tests was to determine the mineralogical and microstructural parameters which affect the durability of the investigated stone, whose main mineral component is calcite, although quartz, dolomite and phyllosilicates are also present. Very low values of porosity were measured, as well as slow capillary kinetics. Pore size distribution was found to be variable, and anisotropy high. The deterioration of the limestone on two monuments, one of which had been exposed to an outdoor environment, and the other to an indoor environment, was studied. The results indicated that the precipitation of soluble salts had significantly contributed to the severe observed deterioration of the limestone.
- Organisation(en)
- Institut für Mineralogie und Kristallographie
- Externe Organisation(en)
- University of Ljubljana, Slovenian National Building and Civil Engineering Institute, Universidad de Granada, Institute for the Protection of Cultural Heritage of Slovenia
- Journal
- RMZ - Materials and Geoenvironment
- Band
- 57
- Seiten
- 53-73
- Anzahl der Seiten
- 21
- ISSN
- 0035-9645
- Publikationsdatum
- 2010
- Peer-reviewed
- Ja
- ÖFOS 2012
- 105116 Mineralogie, 207111 Umwelttechnik
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/f51a49a1-a137-43f4-b308-68095a0a94ba