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Título

The Roman bridge of Salamanca, Spain. Characterization for a proper restoration

AutorIñigo, Adolfo C. ; López Moro, F. J.; Vicente Tavera, Santiago ; Rives, V.
Palabras claveRoman bridge
Salamanca
Restoration
Fecha de publicación2003
EditorConsejo Superior de Investigaciones Científicas (España)
CitaciónApplied study of cultural heritage and clays. 2003. Páginas, 59-70.
ResumenThe Roman bridge of Salamanca was submitted to restoration during years1999 and 2000. Before that, a careful study of the stones used to build it was carried out. Five main lithic varieties were identified: three granitic stones, in the original roman part of the bridge and small areas in the rebuilt section: vaugneretic samples (from Ledesma, Salamanca); biotitic (from Los Santos, Salamanca), and leucogranities (from western Salamanca and Zamora) and two sedimentary detritic stones: sandstone (from Villamayor, Salamanca) and siderolithic arkosic sandstones (from Salamanca). Mineralogical and petrographic studies on theses samples were carried out, in order to ascertain their nature and current state, as well as petrophisical tests (real and apparent density, imhibition and capillary absortion coefficients total and free porosity in water). The results show that a higher level of overall cohesion exists in the granitic samples, but surfate and carbonate layers were found in the sandstone, even with complete arenization in the most external 2-3 cm of the stones. These changes are due to mobilisation of mortars existing in the rebuilt section, but absent in the original, roman one. Broadly speaking , the alteration degree, according to the results of the petrographical and petrophysical studies, is as follow: Granitic stones < siderolytic arkosic sandstone < Villamayor sandstone.
Versión del editorhttp://www.rtphc.csic.es/PDF/libro%20JL%20Perez.pdf
URI10261/19681
ISBN978-00081978
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