Loading...
Publication
Caracterização e contributo para a conservação da taipa militar no Alentejo
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 6.72 MB | Adobe PDF |
Advisor(s)
Abstract(s)
As fortalezas de Alcácer do Sal e de Juromenha foram ambas palco de grandes batalhas ao longo
de séculos, ocultando em si, no entanto, um sistema construtivo em terra crua, executado in
situ, designada no período almóada por taipa militar. Trata-se de construções de grandes
massas, em blocos de terra apiloada, que na sua constituição também possuem cal e agregados
de dimensões variáveis.
O trabalho realizado teve como objetivo a caracterização da taipa militar das referidas
fortalezas. Inicialmente, foram recolhidas amostras de taipa de ambos os locais, as quais foram
limpas e catalogadas. Posteriormente, procedeu-se à sua caracterização colorimétrica, hídrica
(determinação da absorção de água por capilaridade) física (massa volúmica aparente) e
mecânica (velocidade de propagação de ultrassons e resistência à compressão), bem como à
avaliação da sua composição (granulometria e caracterização visual).
Com base nos resultados obtidos, foi possível concluir que, no geral, a taipa militar da fortaleza
de Alcácer do Sal é menos compacta, possui menor resistência à compressão, uma maior
percentagem de finos e aparentemente uma menor percentagem de cal do que a taipa
pertencente à fortaleza de Juromenha.
The fortresses of Alcácer do Sal and of Juromenha were both the scene of major battles over the centuries, concealing, however, a constructive system of raw earth, executed in situ, known in the Almohad period as military rammed-earth. These were large mass constructions, made of blocks of piled earth, which in their constitution, also had lime and aggregates of variable dimensions. The aim of the work carried out was to characterize the military rammed-earth of the aforementioned fortresses. Initially, rammed-earth samples were collected from both locations, and then cleaned and catalogued. Subsequently, they were subjected to a colorimetric, hydric (water absorption by capillarity), physical (apparent density) and mechanical (ultrasonic pulse velocity and compressive strength) characterization, as well as an evaluation of their composition (particle size distribution and visual characterization). From the work carried out, it was possible to conclude that, in general, the military rammed earth belonging to the fortress of Alcácer do Sal is less compact, has lower compressive strength, a higher percentage of fines and apparently a lower percentage of lime than the rammed-earth collected from the fortress of Juromenha.
The fortresses of Alcácer do Sal and of Juromenha were both the scene of major battles over the centuries, concealing, however, a constructive system of raw earth, executed in situ, known in the Almohad period as military rammed-earth. These were large mass constructions, made of blocks of piled earth, which in their constitution, also had lime and aggregates of variable dimensions. The aim of the work carried out was to characterize the military rammed-earth of the aforementioned fortresses. Initially, rammed-earth samples were collected from both locations, and then cleaned and catalogued. Subsequently, they were subjected to a colorimetric, hydric (water absorption by capillarity), physical (apparent density) and mechanical (ultrasonic pulse velocity and compressive strength) characterization, as well as an evaluation of their composition (particle size distribution and visual characterization). From the work carried out, it was possible to conclude that, in general, the military rammed earth belonging to the fortress of Alcácer do Sal is less compact, has lower compressive strength, a higher percentage of fines and apparently a lower percentage of lime than the rammed-earth collected from the fortress of Juromenha.
Description
Keywords
Taipa militar Conservação do património Fortalezas no Alentejo Caracterização hídrica Caracterização física Caracterização mecânica Military rammed-earth Conservation of the built heritage Fortresses in Alentejo Hydric characterization Physical characterization Mechanical characterization