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|Title: ||Microscopic characterisation of old mortars from the Santa Maria Church in Évora|
|Authors: ||Adriano, P.|
Santos Silva, A.
|Issue Date: ||2009|
|Citation: ||P. Adriano, A. Santos Silva, R. Veiga, J. Mirão, A.E. Candeias (2009) “Microscopic characterisation of old mortars from the Santa Maria Church in Évora”, Materials Characterization, 60 (7) 610-620|
|Abstract: ||Evora Cathedral (one of the most emblematic monuments of Evora—Portugal) has suffered
several conservation and restoration interventions through the ages, without, however, any type of previous knowledge about mortars and materials used. This work was carried out in order to identify the mortar's composition in different locations, which were attributed to different construction or conservation periods.
The characterisation methodology involved a multidisciplinary set of chemical, physical,
microstructural and mechanical techniques, and gave special attention to the use of
microstructural characterisation techniques, particularly petrographical analysis and
scanning electron microscopy for the identification of the mortar's constituents as well as in the evaluation of the state of conservation.
The test results showed that two types of aerial binders were used, dolomitic and calcitic limes, the former being predominant. The aggregates used have a siliceous nature and are similar in composition to the granodiorites of the region around Evora. The mortars differ in
the aggregate contents and, in some cases, crushed bricks were used as an additive.|
|Appears in Collections:||CGE - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica|
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