Evaluation of the wood degradation in the underground fort Goli vrh

Ocena razkrojenosti lesa v Podzemni slemenski utrdbi Goli vrh

  • Miha Humar University of Ljubljana
  • Boštjan Lesar
  • Davor Kržišnik
  • Andreja Žagar
  • Angela Balzano
Keywords: underground fort, wood, decay, moisture content, wood decay fungi, biocidal products

Abstract

Before the Second World War, a large underground fortress was built around Goli vrh. Some wood remains in the fort from the time of construction, and some wooden objects have been exhibited in the fort. Several years after the opening of the fort, large scale decomposition was observed on the wood. A sensor for monitoring the relative air humidity and temperature was installed. In addition, a few samples of wood were isolated and examined by X-ray fluorescence spectroscopy and laser confocal linear microscopy. The analysis confirmed the high humidity of the wood and the presence of wood decay fungi on all wood objects, with the exception of wooden ammunition boxes.

References

Anonymus (2019). http://www.scanntronik.de/Produkt_Standard_Sensoren_deu.php (24.1.2019)

ARSO. (2019). Klimatološki podatki. Agencija Republike Slovenije za okolje. http://meteo.arso.gov.si/met/sl/app/webmet/#webmet

De Angelis M., Romagnoli M., Vek V., Poljanšek I., Oven P., Thaler N., Lesar B., Kržišnik D., Humar M. (2018). Chemical composition and resistance of Italian stone pine (Pinus pinea L.) wood against fungal decay and wetting, Industrial crops and products 117: 187–196.

Gradeci, K., Labonnote, N., Time, B., Köhler, J. (2017). Mould growth criteria and design avoidance approaches in wood-based materials – A systematic review. Construction and Building Materials 150, 77-88

Hughes A.S. 1999. Studies on the fixation mechanisms, distribution and biological performance of copper based timber preservatives. Ph. D. thesis, London, Imperial College of Science, Technology and Medicine: 313

Humar, M. (2008). Bela hišna goba: gliva, ki razkraja tudi zaščiten les. Les, 60, 77.

Jorge, L., Dias, A. (2013). X-Lam panels in swimming-pool building – monitoring the environment and the performance. Advanced Materials Research, 778, 779-785.

Kervina-Hamović, L. (1990). Zaščita lesa. Ljubljana, Biotehniška fakulteta, Oddelek za lesarstvo: 126 str.

Kržišnik, D., Brischke, C., Lesar, B., Thaler, N., Humar, M. (2019). Performance of wood in the Franja partisan hospital. Wood material science & engineering, 14, 24-32. doi: 10.1080/17480272.2018.1438512.

Kržišnik, D., Lesar, B., Thaler, N., Humar, M. (2018). Micro and material climate monitoring in wooden buildings in sub-Alpine environments. Construction & building materials, 166, 188-195. doi: 10.1016/j.conbuildmat.2018.01.118

Lesar, B. Gorišek, Ž., Humar, M. (2009). Sorption properties of wood impregnated with boron compounds, sodium chloride and glucose. Drying technology, 27, 94-102.

Lesar, B., Humar, M., Hora, G. (2018). Quality assessment of recycled wood with and without non-wooden materials from selected recycling companies in Europe. Waste management, 79, 362-373.

Meyer, L, Brischke, C (2015). Fungal decay at different moisture levels of selected European-grown wood species. International Biodeterioration & Biodegradation 103, 23-29.

Meyer-Veltrup, L., Brischke, C., Alfredsen, G., Humar, M., Flæte, P-O., Isaksson, T., Larsson Brelid, P., Westin, M., Jermer, J. (2017). The combined effect of wetting ability and durability on outdoor performance of wood – development and verification of a new prediction approach. Wood Science and Technology, 51, 615-637.

Oprešnik, D.; (2018). Zagotavljanje varnosti in reševanja v podzemnih rudnikih – primer Premogovnika Velenje. [Dostopano; 25 januar 2019]. Pridobljeno od: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=slv&id=101341

Prislan, P., Gričar, J. Koch, G., Schmitt, U., Čufar, K. (2008). Mikroskopske tehnike za študij nastanka lesa pri bukvi. Zbornik gozdarstva in lesarstva, 87, 113–122.

Schmidt, O. (2006). Wood and Tree Fungi, Springer, Berlin, Germany.

SIST EN 252 (2004). Terenska preskusna metoda za ugotavljanje relativne preventivne učinkovitosti zaščitnega sredstva za les v stiku z zemljo

Smrdel, V. (2015). Vojaškozgodovinska dediščina utrdbenega sistema Alpskega zidu na območju Pivške kotline : diplomsko delo. Univerza v Ljubljani, Filozofska fakulteta . [Dostopano; 25 januar 2019]. Pridobljeno od: http://dk.fdv.uni-lj.si/diplomska/pdfs/smrdel-valentina.pdf

Unger, A.; Schniewind, A.P.; Unger, W. 2001. Conservation of Wood Artifacts, a handbook. Springer, Berlin

Viitanen, H., Vinha, J., Salminen, K., Ojanen, T., Peuhkuri, R., Paajanen, L., Lähdesmäki, K., (2010). Moisture and Bio-deterioration Risk of Building Materials and Structures. Journal of Building Physics 33, 201-224.

Zupančič, J. (2008). Značaj in funkcije političnih meja v Evropi. Ars & Humanitas, 2(1), 82-96. https://doi.org/10.4312/ah.2.1.82-96

Published
2019-06-21
How to Cite
Humar, M., Lesar, B., Kržišnik, D., Žagar, A., & Balzano, A. (2019). Evaluation of the wood degradation in the underground fort Goli vrh. Les/Wood, 68(1), 61-70. https://doi.org/10.26614/les-wood.2019.v68n01a06
Section
Articles