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Mechanical properties of sandstone improved by impregnation with stone consolidation products
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SYSNO ASEP 0558104 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title Mechanical properties of sandstone improved by impregnation with stone consolidation products Author(s) Slížková, Zuzana (UTAM-F) RID, SAI, ORCID
Šperl, Martin (UTAM-F) RID, SAI
Gajdoš, Lubomír (UTAM-F) RID, SAI
Drdlová, M. (CZ)Number of authors 4 Article number 012009 Source Title Journal of Physics: Conference Series, ICBMPT-2022, 2341. - Bristol : IOP Publishing, 2022 / Boháč M. ; Drdlová M. ; Kubátová D. ; Staněk T. - ISSN 1742-6588 Number of pages 8 s. Publication form Print - P Action ICBMPT 2022. International conference. Building materials, products and technologies /25./ Event date 07.06.2022 - 09.06.2022 VEvent location Telč Country CZ - Czech Republic Event type EUR Language eng - English Country GB - United Kingdom Keywords mechanical properties ; prisms ; impregnation ; stone ; sandstone ; building components ; historical structures ; consolidation ; copolymers ; historical buildings OECD category Materials engineering R&D Projects FW01010021 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Institutional support UTAM-F - RVO:68378297 EID SCOPUS 85140208509 DOI 10.1088/1742-6596/2341/1/012009 Annotation Sandstones and arkoses are traditional building elements of masonry formany historical buildings in the Czech Republic. There is an endeavour to preserve the original material and to extend the life of a stone, particularly for historically, architecturally and monumentally valuable objects. In the renovation practice, a damaged stone is impregnated with liquid
agents which feed a new binder (paste) to the voids in a stone. After curing of the binder the mechanical properties of the stone restore their authentic values. In the present study several consolidants were tested from the viewpoint of their effect on selected mechanical characteristics of arkosic sandstone. Especially were investigated the consolidants based on ethylsilicate, and specifically the effect of an elasticised component in ethylsilicate agens on the consolidation of a stone. The degree of consolidation of a stone after the impregnation of notched and un-notched prisms was examined experimentally. lt can be considered that notched prisms roughly approach the state of a stone with a crack. lt was found that the use of the consolidating agent REMMERS KSE 300E is superior over other agents in compensating the effect of the crack. Beside this product the experiments also proved a positive effect of treating the sandstone with a crack by a 5% solution of an acrylate copolymer Paraloid B 72.Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2023 Electronic address https://doi.org/10.1088/1742-6596/2341/1/012009
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