Teste de envelhecimento acelerado com nevoeiro salino, envolvendo ventilação em rochas calcareníticas de monumentos

Translated title of the contribution: Accelerated aging experiments with saline fog, involving ventilation in calcarenitic monument rocks

Ainara Zornoza-Indart, Paula Lopez-Arce, Joaquim Simão, Nuno Leal, Karima Zoghlami

Research output: Contribution to journalConference articlepeer-review

2 Citations (Scopus)

Abstract

Os materiais pétreos de construção da Fortaleza espanholade Bizerte (Tunísia), apresentavam elevado grau de alteração.Amostras destas rochas, calcarenitos, foram recolhidas e tratadascom diferentes consolidantes. Posteriormente foram submetidas aoensaio de nevoeiro salino com ventilação para testar a eficáciadaqueles produtos. Os resultados obtidos, a partir da perda de massadas amostras e da inspecção macro e microscópica das amostras,permitiram comparar o desempenho dos consolidantes. Estes estudospermitem prever o comportamento destes materiais em obra e decidira sua melhor aplicação em rochas de monumentos para optimizar assoluções de conservação e restauro.

Stone materials used in the construction of the Spanish Fortress of Bizerte, located at the north coast of Tunisia, show a high degree of alteration. Samples of these rocks, calcarenites, were collected and treated with different consolidants. Then, they were subsequently subjected to salt spray test with ventilation, in order to test the effectiveness of the products under these conditions. The results obtained from the samples mass loss and macro and microscopic inspection made possible to compare the performances of the different consolidants. These studies allow to predict the behavior of these stony materials in the field and to decide the best application in the rocks present in monuments, optimizing solutions for conservation and restoration.
Translated title of the contributionAccelerated aging experiments with saline fog, involving ventilation in calcarenitic monument rocks
Original languagePortuguese
Pages (from-to)1181-1185
Number of pages5
JournalComunicações Geológicas
Volume101
Issue number3(SI)
Publication statusPublished - 21 Jul 2014
EventIX Congresso Nacional de Geologia e 2º Congresso de Geologia dos Países de Língua Portuguesa - Porto, Portugal
Duration: 18 Jul 201424 Jul 2014

Keywords

  • Degradação
  • Alteração
  • nevoeiro salino
  • Consolidantes
  • Património
  • Degradation
  • Alteration
  • salt fog spray
  • consolidants
  • heritage

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