Cit:Le Dizès.etal:2021
| Autor | Le Dizès, R.; Jaïs, D.; Shahidzadeh, N. |
| Jahr | 2021 |
| Titel | Two-steps treatments for the consolidation of carbonate stone artworks |
| Bibtex | @inproceedings { Le Dizès.etal:2021,
title = {Two-steps treatments for the consolidation of carbonate stone artworks }, booktitle = {Proceedings of SWBSS 2021 – Fifth International Conference on Salt Weathering of Buildings and Stone Sculptures}, year = {2021}, editor = {Lubelli, B.; Kamat, A.A.; Quist, W.J.}, pages = {225-232}, publisher = {TU Delft Open}, note = {An important part of our cultural heritage, such as artefacts, statues or historical monuments, is exposed to chemical and physical degradation over time. The degradation can lead to fractures and/or loss of cohesion among the individual particles forming the material components. It can also damage the painting layers: flaking of the surface layers, powdering etc. To protect weakened porous materials, filmforming substances, resins and polymeric materials are often used to consolidate weakened porous objects and structures. Although progress has been made in improving consolidation treatments for silicate stones, the treatments are much less effective when used on carbonate stones (such as marble or limestone) because of the chemical incompatibility between the grains and the common treatments. Here, we present a novel two-step treatment for consolidating weakened artworks made of porous limestone. Coupling agents are synthetized as a pre-treatment step to prepare the porous net work prior to the application of the consolidant. The latter can then be applied successfully without inducing crack formation during drying. The efficiency of the two-step treatment was studied at the microscale and linked to the macroscopic mechanical properties, such as the Young’s modulus and stress at break of the materials after treatment. Our results have advantages over other types of the treatments based on lime nanoparticles: the two-step treatment proposed here is easy to implement while being eco-friendly. In addition,it respects several other important criteria, such as the ability to restore the mechanical properties of damaged stones without changing their physical appearance and other properties, such as porosity or permeability. }, key = {SWBSS 2021}, url = {https://predict.kikirpa.be/wp-content/uploads/2021/12/SWBSS2021_Procedings.pdf}, author = {Le Dizès, R. and Jaïs, D. and Shahidzadeh, N.} } |
| DOI | |
| Link | |
| Bemerkungen | in: Lubelli, B.; Kamat, A.A.; Quist, W.J. (Hrsg.): Proceedings of SWBSS 2021 – Fifth International Conference on Salt Weathering of Buildings and Stone Sculptures,TU Delft Open 225-232 |
Eintrag in der Bibliographie
| [Le Dizès.etal:2021] | Le Dizès, R.; Jaïs, D.; Shahidzadeh, N. (2021): Two-steps treatments for the consolidation of carbonate stone artworks . In: Lubelli, B.; Kamat, A.A.; Quist, W.J. (Hrsg.): Proceedings of SWBSS 2021 – Fifth International Conference on Salt Weathering of Buildings and Stone Sculptures,TU Delft Open 225-232, Webadresse. |  |
Keywords[Bearbeiten]
Limestone, consolidation, calcium citrate, sol-gel process
Abstract[Bearbeiten]
An important part of our cultural heritage, such as artefacts, statues or historical monuments, is exposed to chemical and physical degradation over time. The degradation can lead to fractures and/or loss of cohesion among the individual particles forming the material components. It can also damage the painting layers: flaking of the surface layers, powdering etc. To protect weakened porous materials, filmforming substances, resins and polymeric materials are often used to consolidate weakened porous objects and structures. Although progress has been made in improving consolidation treatments for silicate stones, the treatments are much less effective when used on carbonate stones (such as marble or limestone) because of the chemical incompatibility between the grains and the common treatments. Here, we present a novel two-step treatment for consolidating weakened artworks made of porous limestone. Coupling agents are synthetized as a pre-treatment step to prepare the porous net work prior to the application of the consolidant. The latter can then be applied successfully without inducing crack formation during drying. The efficiency of the two-step treatment was studied at the microscale and linked to the macroscopic mechanical properties, such as the Young’s modulus and stress at break of the materials after treatment. Our results have advantages over other types of the treatments based on lime nanoparticles: the two-step treatment proposed here is easy to implement while being eco-friendly. In addition,it respects several other important criteria, such as the ability to restore the mechanical properties of damaged stones without changing their physical appearance and other properties, such as porosity or permeability.