Changes in Petrophysical Properties of the Stone Surface due to Past Conservation Treatments in Archaeological Sites of Merida (Spain)

Pérez Ema, Natalia and Bustamante Montoro, Rosa and Álvarez de Buergo, Mónica and Gómez-Heras, Miguel (2014). Changes in Petrophysical Properties of the Stone Surface due to Past Conservation Treatments in Archaeological Sites of Merida (Spain). In: "IAEG XII Congress", 15-19 septiembre, Torino. ISBN 978-3-319-09407-6. pp. 360-364.

Description

Title: Changes in Petrophysical Properties of the Stone Surface due to Past Conservation Treatments in Archaeological Sites of Merida (Spain)
Author/s:
  • Pérez Ema, Natalia
  • Bustamante Montoro, Rosa
  • Álvarez de Buergo, Mónica
  • Gómez-Heras, Miguel
Item Type: Presentation at Congress or Conference (Article)
Event Title: IAEG XII Congress
Event Dates: 15-19 septiembre
Event Location: Torino
Title of Book: Engineering Geology for Society and Territory. Vol. 8 Preservation of Cultural Heritage
Date: 2014
ISBN: 978-3-319-09407-6
Subjects:
Freetext Keywords: Archaeological sites, stone, marble, granite, Conservation, Treatments, Petrophysical properties, Merida
Faculty: E.T.S. Arquitectura (UPM)
Department: Construcción y Tecnología Arquitectónica
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Petrophysical properties, such as porosity, permeability, density or anisotropy de-termine 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 ex-ample, 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 la-boratory, comparing treated and untreated samples. Treatments consisted of syn-thetic 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.

More information

Item ID: 37127
DC Identifier: http://oa.upm.es/37127/
OAI Identifier: oai:oa.upm.es:37127
Official URL: http://digital.csic.es/handle/10261/120840
Deposited by: Memoria Investigacion
Deposited on: 15 Oct 2015 08:21
Last Modified: 13 May 2020 08:52
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