Hydrofobizace Braunova Betlému a zhodnocení pískovce jako sochařského a stavebního kamene

Magdaléna Kalousková

Bachelor's thesis

Hydrophobization of Matthias Braun's Bethlehem and Evaluation of Sandstone as a Plastic Art, Architecture and Civil Engineering Material

Anotácia:

Nalezení možnosti účinné ochrany soch a staveb a restaurátorské možnosti. Zhodnocení a průzkum se bude především zabývat objekty lokality Nový les u Kuksu (východní Čechy), hlavně sochami Matyáše Brauna. Zhodnoceni pískovců jako sochařského a stavebního kamene a jejich (různé typy a provenience) odolnosti vůči zvětrávání a antropickým vlivům a znečištění, také v souvislosti se změnami klimatu.

Abstract:

This work is about one of the most common Czech sedimentary rock, sandstone, and a hydrophobic protection of its surface. We focused on protection of endangered baroque nativity scene called Braun's Bethlehem, which was carved straight in sandstone rocks. It is located in the forest ,,Nový les” near the Kuks Hospital. In these pages you can find out how hydrophobic protection can change the contact angle between water drop and the surface of the sandstone. It is also written here that far from all surfaces are suitable for hydrophobization. Many factors determine whether the protection will help to objects or it will harm them. Whether it is possible to perform it and if so, which method of this treatment would be most appropriate. During the research, however, we find that the natural conditions in the forest and the age of the sculptures make most of the common restoration interventions impossible, and for feasible operations it is necessary to proceed with the utmost care during application in order to avoid irreversible damage to the Bethlehem. The work also evaluate the properties of the sandstone construction and sculpture.

Kľúčové slová

hydrofobizace, pískovec, ochrana povrchu, kulturní památka

Keywords

sandstone, surface protection, contact angle, hydrophobization

Jazyk práce: Czech

Datum vytvoření / odevzdání či podání práce: 29. 3. 2021

Obhajoba závěrečné práce

• Vedúci: RNDr. Miroslav Jetmar, Ph.D.

Czech University of Life Sciences Prague

Faculty of Environmental Sciences

Bachelor programme / odbor:
Landscaping / Water management