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Title: Application in Pottery of the Residual Soils Associated to Marbles from
Authors: Ruben, Martins
Lopes, Luís
Gomes, Celso
Arroz, Maria Helena
Santos, Dulce
Rosado, Francisco
Cunha, Ana Marta
Editors: Guerra Rosa, Luís
Silva, Zenaide
Lopes, Luís
Keywords: Ceramic Properties
Terra rossa
Issue Date: 10-Apr-2013
Publisher: Trans Tech Publications
Citation: Martins, R.; Lopes, L.; Gomes, C.; Arroz, M.; Santos, D.; Rosado, F. & Cunha, A. (2012) – Application in Pottery of the Residual Soils Associated to Marbles from the Estremoz Anticlinal Region, In Rosa, L.; Silva, Z. & Lopes, L. eds. Proceedings of the Global Stone Congress, Key Engineering Materials Vol. 548 (2013) pp 147-156, © (2013) Trans Tech Publications, Switzerland; doi:10.4028/
Abstract: Terra rossa is a residual soil that is derived from the chemical dissolution of carbonate rocks. This type of soil occurs in the region of the so-called Estremoz anticlinal, being the result of the weathering of extensive marble occurrences which are exploited for ornamental stone. The research work performed and disclosed in the present paper shows that terra rossa possesses appropriate compositional and technological properties for its use on ceramic applications, particularly for the local traditional pottery. In potential marble quarry sites several thick soil horizons can be found, and whenever the soil is removed marble is shown up. As a rule, the removed soil is deposited around the quarry, and so far no use has been given to it. Pottery has a long tradition in the Alentejo region, and Vila de Redondo and Aldeia de S. Pedro do Corval are known as emblematic centers of this activity. However, time has shown that the scarcity of high quality clay deposits has become an important issue. Therefore, potters are buying clay from other regions of Portugal, in particular in the area of Caldas da Rainha, located in the central west of the country and far from Alentejo, or even importing it from Spain. The cooperative research work carried out in the Laboratories of DGUE, the Department of Geosciences at the University of Aveiro (DGUA) and CENCAL, and at the pottery owned by the artisan Mestre Xico Tarefa, in Vila de Redondo, has shown that terra rossa, due to its physicochemical, mineralogical and technological properties, can be used as a raw material in ceramic manufacturing, particularly in the traditional pottery produced both in Redondo and S. Pedro de Corval.
Type: book
Appears in Collections:CGE - Publicações - Livros

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