RILEM TC 243-SGM report : grouting for historic architectural surfaces

Papayianni, Ioanna (author), Bicer-Simsir, Beril (author), Jornet, Albert (author), Groot, Caspar (author), Valek, Jan (author), Bokan-Bosiljkov, Violeta (author), Hees, Rob P. J. van (author), Padovnik, Andreja (author), Pachta, Vasiliki (author)

Historic Structures are commonly coated with mortar layers (plasters, renders, flooring) for protection and decoration. These well finished architectural stratigraphic surfaces often suffer from deterioration, such as lack of adhesion or detachment between support and mortar layers and even between mortar layers. Grouting and filling voids between delaminated layers can be an effective intervention if the layers are compact. This paper deals with aspects pertinent to the selection, design and implementation of a grout for the in situ stabilization and preservation of historic architectural surfaces. It presents the methodological approach, in accordance with the conservation principles, including sections on diagnosis, study and assessment of the deterioration phenomena, definition of grout requirements, selection of proper ingredients for custom-made or commercial grouts, as well as making and testing trial mixes, field testing and Assessment of the effectiveness of grouting. The aim of this paper, that is elaborated in the frame of RILEM TC 243 SGM, is to serve as a guide for users of lime-based grouts for the reattachment and reinstatement of historical architectural surfaces.

• Language: English
• Keywords: civil engineering, historic architectural surfaces, multi-layers, reattachments, lime-based grouts, methodological approach
• Work type: Article
• Typology: 1.02 - Review Article
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Year: 2022
• Number of pages: 17 str.
• Numbering: Art. 1, vol. 56
• PID: 20.500.12556/RUL-146652
• UDC: 691
• ISSN on article: 1359-5997
• DOI: 10.1617/s11527-022-02076-7
• COBISS.SI-ID: 135416835
• Publication date in RUL: 05.06.2023

Record is a part of a journal

• Title: Materials and structures
• Shortened title: Mat. struct.
• Publisher: E. & F. N. Spon, RILEM Publications
• ISSN: 1359-5997
• COBISS.SI-ID: 18240005

Secondary language

• Language: Slovenian

Abstract

Zgodovinski konstrukcijski in nekonstrukcijski elementi so običajno nosilci za plasti malte (zunanji in notranji ometi, estrihi), zaradi njihove zaščite in kot podlaga za dekorativne sloje. Te dobro obdelane arhitekturne stratigrafske površine so pogosto podvržene propadanju, kot je pomanjkanje oprijema ali ločitev med podpornimi in maltnimi plastmi ter celo med maltnimi plastmi. Injektiranje in zapolnjevanje žepov med razslojenimi plastmi je lahko učinkovit poseg, če so plasti kompaktne. Prispevek obravnava vidike, ki so pomembni za izbiro, projektiranje in uporabo injekcijske mase za in situ stabilizacijo in ohranitev zgodovinskih arhitekturnih površin. Predstavlja metodološki pristop, v skladu s konservatorskimi načeli, vključno z diagnostiko za oceno obsega poškodovanosti, opredelitvijo zahtev za injekcijske mase, izbiro ustreznih sestavin injekcijske mase, bodisi izdelane po meri ali komercialne, ter pripravo in poskusnim testiranjem me šanic in njihove aplikacije na terenu. Članek, ki je pripravljen v okviru RILEM TC 243 SGM, je lahko vodilo uporabnikom injekcijskih mas na osnovi apna pri sanaciji in obnovi zgodovinskih arhitekturnih površin, ki temelji na najnovejših znanstvenih in strokovnih spoznanjih.

• Keywords: gradbeništvo, zgodovinske arhitekturne površine, večslojni nosilci, odstopanje slojev, apnene injekcijske mase, metodološki pristop

Projects

• Funder: ARRS - Slovenian Research Agency
• Project number: P2-0185
• Name: Potresno inženirstvo