Manutenção de Alvenarias e Cantarias: ensaios sobre argamassas de refechamento de juntas das alvenarias secas de xisto da 1ª Casa dos Vasconcelos em Macedo de Cavaleiros
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2010
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Neste trabalho destaca-se a importância da caracterização das paredes em alvenaria de pedra seca, refechamento de juntas, que envolve análises histórica dos materiais, da tecnologia construtiva e do comportamento estrutural.
Assim, como forma a que nos conduza a uma melhor compreensão do seu comportamento estrutural e ao discernimento de pormenores específicos; ao desenvolvimento do estudo de refechamento de juntas, como operação essencial para a conservação e reabilitação de alvenarias secas, não rebocadas. Apresentam-se as principais técnicas de reabilitação, inovadoras e tradicionais, com referência ao seu potencial campo de aplicação, vantagens e limitações, resultados da sua aplicação.
No âmbito desta investigação estudaram-se duas argamassas existentes no mercado, para aplicação como refechamento de juntas em alvenarias de pedra seca. Para estes dois tipos de argamassas, efectuaram-se vários ensaios, quer a nível de determinação das suas resistências mecânicas, quer a nível do seu comportamento em relação à água, para verificar a sua adequação de aplicação.
This research highlights the importance of the characterisation of dry stone masonry walls when reclosing joints, which involves the historical analysis of materials, building technology and structural behaviour. This study, on reclosing joints as an essential operation in the conservation and rehabilitation of non plastered dry masonry, was developed in order to lead us to a better understanding of its structural behaviour and the discernment of specific details. The main rehabilitation techniques, both innovative and traditional are presented here, with reference to their potential scope of application as well as the advantages and limitations resulting from their application. Under the scope of this investigation two types of mortar, existing on the market, were studied for their use in reclosing joints in dry stone masonry. Various experiments were carried out using these two types of mortar, both in terms of mechanical resistance as well as behavior in relation to water, in order to determine suitability for application.
This research highlights the importance of the characterisation of dry stone masonry walls when reclosing joints, which involves the historical analysis of materials, building technology and structural behaviour. This study, on reclosing joints as an essential operation in the conservation and rehabilitation of non plastered dry masonry, was developed in order to lead us to a better understanding of its structural behaviour and the discernment of specific details. The main rehabilitation techniques, both innovative and traditional are presented here, with reference to their potential scope of application as well as the advantages and limitations resulting from their application. Under the scope of this investigation two types of mortar, existing on the market, were studied for their use in reclosing joints in dry stone masonry. Various experiments were carried out using these two types of mortar, both in terms of mechanical resistance as well as behavior in relation to water, in order to determine suitability for application.
Descrição
Dissertação de Mestrado em Engenharia Civil
Palavras-chave
Conservação e restauro de Edifícios Históricos