Hi,

During the Geopolymer Camp 2014, a team of Italian researchers of University of Padova did a communication on materials for restoration heritage.

There are: Sergio Tamburini, Luca Nodari, Andrea Magro (Consiglio Nazionale delle Ricerche Istituto per l’Energetica e le Interfasi (Corso Stati Uniti 4 - Padova)), Marianna Bressan (Soprintendenza per i Beni Archeologici del Veneto (Via Aquileia 7 - Padova)), Stefania Mazzocchin, Enrico Garbin

Matteo Panizza, Maria Rosa Valluzzi (Università degli Studi di Padova Dipartimento dei Beni Culturali: Archeologia, Storia dell‘Arte, del Cinema e della Musica. Laboratori di Archeologia (Via delle Ceramiche, 28 - Ponte di Brenta PD). If you can contact them.

Here is the link of the communication "CHALLENGING MATERIALS FOR RESTORATION OF CULTURAL HERITAGE": https://geopolymer.org/fichiers/gpcamp-2014/Tamburini%20-%20Challenging%20Materials%20for%20Restoration%20of%20Cultural%20Heritage.pdf

Thanks for your support

I found those links using geopolymers in mosaic restoration and cultural heritage:

• Italian CNR: https://www.cnr.it/en/focus/073-54/application-of-new-products-for-restoration
• "Innovative solution for the preservation of cultural heritage – Geopolymers Lightweight and colored geopolymeric materials": https://www.istec.cnr.it/en/research/lines-of-research/environment-building-and-cultural-heritage/beni-culturali/compositi-geopolimerici-per-il-restauro-dei-materiali-nei-beni-culturali/
• ICCM mosaic poster with geopolymers "Novel geopolymeric composites for the restoration of a roman mosaic fragment": https://iccm-mosaics.org/wp-content/uploads/2017/12/Soragni-et-al.pdf
• Publications of the "AGM for CuHe: Advanced Green Materials for Cultural Heritage": https://sites.google.com/view/agmforcuhe/pubblicazioni
• ResearcGate:

  Article Geopolymers as potential repair material in tiles conservation

You are welcome.

I add this paper:

Sara Moutinho, Cristiana Costa, Ângela Cerqueira, Fernando Rocha, Ana Velosa, "Geopolymers and polymers in the conservation of tile facades,

Construction and Building Materials," Volume 197, 2019, Pages 175-184,

ISSN 0950-0618, https://doi.org/10.1016/j.conbuildmat.2018.11.058.

(https://www.sciencedirect.com/science/article/pii/S0950061818327235)

Abstract: The most commonly used materials to fill gaps/lacunae in glazed tiles are lime mortars or organic resins, which have some disadvantages regarding their compatibility and durability, failing to guarantee the desired characteristics. Therefore, there is a need to develop new materials with compatible characteristics, able to withstand exposure to variations in climatic conditions. This scientific work focuses on the possibility of using geopolymers, aiming to evaluate the possibility of the use of these materials in the intervention process of historic tiles conservation as compatible materials that may be used to fill gaps. Different geopolymer pastes were developed changing the source of aluminosilicates, the type of alkaline activators and the pH. To evaluate the geopolymers, polymers and tiles, several tests were carried out. The results suggest that the geopolymers are a possible option for the filling of tile gaps, given the characteristics that can be achieved, ensuring compatibility and durability properties.

Keywords: Tiles; Geopolymers; Polymers; Conservation; Lacunae