Changes in Petrophysical Properties of the Stone Surface due to Past Conservation Treatments in Archaeological Sites of Merida (Spain)
| Autor: | Rosa Bustamante, Natalia Perez-Ema, Mónica Álvarez de Buergo, Miguel Gomez-Heras |
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| Přispěvatelé: | Comunidad de Madrid |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Granite
Petrophysics Treatments Mineralogy Stone Conservation 02 engineering and technology 010502 geochemistry & geophysics 021001 nanoscience & nanotechnology 01 natural sciences Archaeology Marble Permeability (earth sciences) Archaeological sites Geography Merida Petrophysical properties 0210 nano-technology 0105 earth and related environmental sciences Arquitectura |
| Zdroj: | Engineering Geology for Society and Territory. Vol. 8 Preservation of Cultural Heritage | IAEG XII Congress | 15-19 septiembre | Torino Engineering Geology for Society and Territory-Volume 8 ISBN: 9783319094076 Digital.CSIC. Repositorio Institucional del CSIC instname Archivo Digital UPM Universidad Politécnica de Madrid |
| Popis: | Engineering Geology for Society and Territory - Volume 8: Preservation of Cultural Heritage. Editors: Lollino, G., Giordan, D., Marunteanu, C., Christaras, B., Yoshinori, I., Margottini, C. (Eds.). One out of eight IAEG XII Congress volumes on the occasion of the 50th anniversary of IAEG Petrophysical properties, such as porosity, permeability, density or anisotropy determine the alterability of stone surfaces from archaeological sites, and therefore, the future preservation of the material. Others, like superficial roughness or color, may point out changes due to alteration processes, natural or man-induced, for example, by conservation treatments. The application of conservation treatments may vary some of these properties forcing the stone surface to a re-adaptation to the new conditions, which could generate new processes of deterioration. In this study changes resulting from the application of consolidating and hydrophobic treatments on stone materials from the Roman Theatre (marble and granite) and the Mitreo’s House (mural painting and mosaics), both archaeological sites from Merida (Spain), are analyzed. The use of portable field devices allows us to perform analyses both on site and in laboratory, comparing treated and untreated samples. Treatments consisted of synthetic resins, consolidating (such as tetraethoxysilane TEOS) and hydrophobic products. Results confirm that undesirable changes may occur, with consequences ranging from purely aesthetic variations to physical, chemical and mechanical damages. This also permits us to check limitations in the use of these techniques for the evaluation of conservation treatments. This research was supported by the PICATA program from Campus of Interna-tional Excellence of Moncloa. Our acknowledgements to GEOMATERIALES programme (S2009-MAT1629) within Instituto de Geociencias (CSIC, UCM), to AIPA programme (ETSAM, Polytechnic University of Madrid) and to the Re-search Group financed by the Complutense University of Madrid "Alteration and Conservation of heritage stone materials” (ref. 921349). We thank the Consorcio de la Ciudad Monumental de Merida, as well as the Museo Nacional de Arte Ro-mano de Merida, for its collaboration in this research. |
| Databáze: | OpenAIRE |
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