
handle: 10773/2407
O presente trabalho tem como base o estudo de argamassas a aplicar na conservação de edifícios antigos, incidindo sobre argamassas contendo pozolanas e com cal aérea como ligante. Foi feito um levantamento dos materiais pozolânicos existentes, assim como das suas características. A reacção pozolânica associada a este tipo de argamassas foi estudada e explicitada. O estudo de argamassas antigas com pozolanas englobou pesquisa bibliográfica, assim como a recolha, análise e ensaio de argamassas provenientes de várias épocas, locais e tipos de edifícios. Foram analisadas as características das argamassas antigas a partir dos resultados obtidos. A elaboração de argamassas de cal aérea e pozolana partiu de um estudo prévio, para aferir as melhores composições e avaliar a influência de diferentes condicionamentos. Foram escolhidos e analisados diversos materiais potencialmente pozolânicos e foram formuladas argamassas com esses materiais. Um conjunto de ensaios mecânicos e físicos foi aplicado às argamassas elaboradas, permitindo estabelecer a sua adequação para aplicação em edifícios antigos. Finalmente foram efectuadas aplicações em muretes exteriores, painéis e num edifício antigo.
The current work is based on the study of mortars to be applied in the conservation of ancient buildings, focusing on mortars containing pozolanas and aerial lime as a binder. A survey of the existing pozzolanic materials and their characteristics was undertaken. Pozzolanic reaction, associated with these mortars was studied and explained. The study of ancient mortars encompassed bibliographic research, withdrawal, analysis and testing of mortar samples from various periods, locations and types of buildings. The characteristics of ancient mortars were analysed based on the obtained results. A previous study was performed in which mortars with aerial lime and pozzolans were prepared, the best compositions were established and the influence of different curing conditions was evaluated. Several materials with a pozzolanic potential were chosen and analysed and mortars were formulated with these materials. A set of mechanical and physical tests was performed on the executed mortars, allowing for an assessment of their adequacy for application on old masonry. At last, applications on exterior walls, on panels and on an ancient building were carried out.
Doutoramento em Engenharia Civil
Argamassas, Engenharia civil, Conservação de edifícios, Revestimento de paredes
Argamassas, Engenharia civil, Conservação de edifícios, Revestimento de paredes
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 0 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
