Macroscopical morphology of deterioration of the stone in the Cathedral of Seville, Spain

• Autores: M. Alcalde, Antonia Martín Sanz
• Localización: Materiales de construcción, ISSN 0465-2746, Vol. 40, Nº. 219, 1990, págs. 5-28
• Idioma: inglés
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• Resumen

  • The lithotype mainly used in the construction of the Cathedral of Seville is the calcarenite from Puerto de Santa f\/laria followed by the limestone from Espera. The primordial extrinsecal factor of deterioration is the atmospherical contamination, mainly sulphur oxides and smoke, within a humid environment. From both factors, the porose stone of a carbonated nature and the acid environment, we can deduce that the principal mechanism of deterioration is the chemical attack; the most important indicators of deterioration that have been found are the deposits and arenizations. In a "grosso modo" valoration we can say that the stone of structural employment is well conserved in its majority while the ornamental stone is degraded at 80%. Half the cresting is in a state of ruin and 20% of the tips have been removed or will have to be in the near future.