Naslov
Fourteen century limestone deterioration: Desalination and restoration criteria

Autori
Ugrina, Helena ; Marinković, Vinka ; Mudronja, Domagoj

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), stručni

Izvornik
Proceedings of 5th International SWBSS conference – Delft 2021 / Lubelli, Barbara ; Kamat, Ameya ; Quist, Wido - Delft : TU Delft / Faculty of architecture and the built environment, 2021, 205-213

ISBN
978-94-6366-439-4

Skup
5th International SWBSS conference – Delft 2021

Mjesto i datum
Delft, Nizozemska, 22.09.2021. - 24.09.2021

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
preconsolidation ; salt ; disintegration ; desalination ; stone consolidation

Sažetak
This paper describes conservation-restoration works carried out on the limestone dating 14th century, depicting St. Simeon and Elizabeth of Bosnia. Due to long-term exposure to environment in the museum yard and one inadequate restoration work in the 1950s, the stone showed a wide range of decay forms such as: delami-nation, exfoliation, disintegration, splintering, and powdering. The thickness and the shape of the damaged layers of the stone were variable. Laboratory research has shown a high concentration of soluble salts (chlorides, sulphates and nitrates, dominantly halite and gypsum), which caused accelerated decay of the limestone ; therefore, the conservation- restoration process was focused on different desalina-tion methods. Water baths were chosen for the desalination method, followed by barium hydroxide treatment. Before and after the desalination treatment, stone was consolidated by nano-lime. After the treatment, the stone relief was stabilized and ready for return to stabile museum environment.

Izvorni jezik
Engleski

Znanstvena područja
Interdisciplinarne prirodne znanosti, Interdisciplinarno umjetničko polje

POVEZANOST RADA