A carregar...
Publicação
Argamassas em Monumentos Históricos: contribuições para a preservação do Património Cultural Edificado
| Nome: | Descrição: | Tamanho: | Formato: | |
|---|---|---|---|---|
| 13.29 MB | Adobe PDF |
Orientador(es)
Resumo(s)
O presente trabalho teve como objetivo compreender as características de argamassas
históricas, à base de cal, provenientes de monumentos culturais edificados distintos, usadas
para diferentes funções e, relacioná-las com cada contexto histórico e regional. Incluiu ainda a
caracterização de argamassas recentes, utilizadas em intervenções de restauro, com o intuito
de compará-las com o material histórico. As amostras históricas estudadas são provenientes
do Mosteiro de Santa Maria de Alcobaça, em Portugal, do Aqueduto de Cartago, na Tunísia e
do Palácio de Knossos, em Creta. Através de uma abordagem interdisciplinar e multi-analítica,
a metodologia foi adaptada para o estudo de amostras em pequena quantidade. A
caracterização química e mineralógica foi realizada considerando o material na sua globalidade
assim como os seus componentes específicos, sem a necessidade de separá-los fisicamente.
Estes materiais eram usados, maioritariamente, com funções estruturais e também de
revestimento. Os resultados confirmam a relação entre a função e as características observadas,
assim com a relação entre a mineralogia identificada dos agregados e a geologia local.
O estudo do material recente foi desenvolvido a partir de argamassas preparadas e
utilizadas em uma intervenção de restauro, executada pela empresa
Signinum, em 2021. As
argamassas foram aplicadas sobre suportes cerâmico e pétreo e ficaram expostas às condições
ambientes naturais durante dois anos. No fim deste processo foram caracterizadas com a
mesma metodologia. Os resultados indicaram que o material recente ainda não estava
totalmente carbonatado, no entanto, há características transversais ao material,
independentemente da sua função, proveniência ou tempo de uso.
The aim of this study was to understand the characteristics of historical lime mortars from different built cultural monuments, used for different functions, and to relate them to each historical and regional context. Also included is the characterisation of recent mortars used in restoration interventions, to compare them with historical materials. The historical samples studied come from the Monastery of Santa Maria de Alcobaça in Portugal, the Carthage Aqueduct in Tunisia, and the Palace of Knossos in Crete. Through an interdisciplinary and multi-analytical approach, the methodology was adapted to the study of samples in small quantities. The chemical and mineralogical characterisation was carried out considering the material as a whole and its specific components, without the need to physically separate them. These materials were mostly used for structural purposes and for rendering. The results confirm the relationship between the function and the characteristics observed, as well as the relationship between the identified mineralogy of the aggregates and the local geology. The study of recent materials was based on mortars prepared and used in a restoration intervention carried out by the Signinum company in 2021. The mortars were applied to ceramic and stone substrates and were exposed to natural environmental conditions for two years. At the end of this process, they were characterised using the same methodology. The results indicated that the recent material was not yet fully carbonated, however, there are common characteristics regardless of its function, provenance or time of use.
The aim of this study was to understand the characteristics of historical lime mortars from different built cultural monuments, used for different functions, and to relate them to each historical and regional context. Also included is the characterisation of recent mortars used in restoration interventions, to compare them with historical materials. The historical samples studied come from the Monastery of Santa Maria de Alcobaça in Portugal, the Carthage Aqueduct in Tunisia, and the Palace of Knossos in Crete. Through an interdisciplinary and multi-analytical approach, the methodology was adapted to the study of samples in small quantities. The chemical and mineralogical characterisation was carried out considering the material as a whole and its specific components, without the need to physically separate them. These materials were mostly used for structural purposes and for rendering. The results confirm the relationship between the function and the characteristics observed, as well as the relationship between the identified mineralogy of the aggregates and the local geology. The study of recent materials was based on mortars prepared and used in a restoration intervention carried out by the Signinum company in 2021. The mortars were applied to ceramic and stone substrates and were exposed to natural environmental conditions for two years. At the end of this process, they were characterised using the same methodology. The results indicated that the recent material was not yet fully carbonated, however, there are common characteristics regardless of its function, provenance or time of use.
Descrição
Palavras-chave
Argamassas históricas Argamassas recentes Metodologia multi-analítica Mosteiro de Alcobaça Aqueduto de Cartago Palácio de Knossos