Cit:Balawi.etal:2021
| Autor | Balawi, M.; Beck, K.; Janvier, R.; Janvier-Badosa, S.; Brunetaud, X. |
| Jahr | 2021 |
| Titel | Matter loss quantification and chemical analysis for the diagnosis of powdering: the case study of the chapel of Maurepas, Chambord, France |
| Bibtex | @inproceedings { Balawi.etal:2021,
title = {Matter loss quantification and chemical analysis for the diagnosis of powdering: the case study of the chapel of Maurepas, Chambord, France}, 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 = {337-344}, publisher = {TU Delft Open}, note = {This study is extracted from a case study of the chapel of Maurepas, in the national estate of Chambord, in France. It is focused on the diagnosis of two corner quoins made of tuffeau stonework in the inner side of the chapel. These corner quoins visually suffer from severe powdering. Both matter loss quantification and chemical analysis were performed to assess the intensity and the origin of this powdering. A 3D survey was performed using a laser scanner to quantify the matter loss where the powdering is maximal. The processing of 3D data revealed a reduction up to 37% of the section of the pillar. Samples were drilled at different heights and different depths to assess the nature and proportion of potential salts, added to the quantification of water content. XRD analyses showed the presence of NaCl while ion chromatography could quantify its content, up to 10%. Even if the pillars are located in the inner side of the chapel, there is a significant water content in the stonework, especially where it is polluted by NaCl. All evidences tend to conclude the phenomenon of powdering is still in progress even if some remediation was already attempted in 1992 in this chapel.}, key = {SWBSS 2021}, url = {https://predict.kikirpa.be/wp-content/uploads/2021/12/SWBSS2021_Procedings.pdf }, author = {Balawi, M. and Beck, K. and Janvier, R. and Janvier-Badosa, S. and Brunetaud, X.} } } } |
| 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 337-344 |
Eintrag in der Bibliographie
| [Balawi.etal:2021] | Balawi, M.; Beck, K.; Janvier, R.; Janvier-Badosa, S.; Brunetaud, X. (2021): Matter loss quantification and chemical analysis for the diagnosis of powdering: the case study of the chapel of Maurepas, Chambord, France. 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 337-344, Webadresse. |  |
Keywords[Bearbeiten]
Powdering, sodium chloride, 3D survey, limestone, tuffeau, case study
Abstract[Bearbeiten]
This study is extracted from a case study of the chapel of Maurepas, in the national estate of Chambord, in France. It is focused on the diagnosis of two corner quoins made of tuffeau stonework in the inner side of the chapel. These corner quoins visually suffer from severe powdering. Both matter loss quantification and chemical analysis were performed to assess the intensity and the origin of this powdering. A 3D survey was performed using a laser scanner to quantify the matter loss where the powdering is maximal. The processing of 3D data revealed a reduction up to 37% of the section of the pillar. Samples were drilled at different heights and different depths to assess the nature and proportion of potential salts, added to the quantification of water content. XRD analyses showed the presence of NaCl while ion chromatography could quantify its content, up to 10%. Even if the pillars are located in the inner side of the chapel, there is a significant water content in the stonework, especially where it is polluted by NaCl. All evidences tend to conclude the phenomenon of powdering is still in progress even if some remediation was already attempted in 1992 in this chapel.