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Saadien Mosaic (Zellige) from historical monuments of Marrakech, Morocco: Degradation state and production technology
El Halim, Mouhssin; Daoudi, Lahcen; El Ouahabi, Meriam et al.
2017International Symposium: Architectural Patrimony and Local Building Materials 'APLOBMA'
 

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Keywords :
archaeological ceramics; Production technology; Degradation state; El Badi Palace; Saadian tombs; Morocco
Abstract :
[en] This study is focused on Saadian ceramics called zellige from the archaeological sites of "El Badi palace" and "Saadian Tombs" (Marrakech, Morocco) dated in late 16th Century and classified as world heritage by UNESCO in 2008. A multi-analytical approach based on optical microscopy, cathodoluminescence, scanning electron microscopy, X-ray fluorescence and X-ray diffraction investigations and re-firing tests on ceramic supports has been used,in order to determineraw materials source, technical manufacturing and firing temperatures used by the Saadian artisans. Production technology, microstructure and the chemical compositionsuggest that the zellige pieces used in the construction of Saadian monuments in Marrakech are either imported from Fez, i.e. the main center of production of the zellige in Morocco, or manufactured locally in Marrakech according to the current standards and procedures in Fez. The calcareous clay raw materialwas used to manufacture these ceramics, but firing temperature was different. Zellige of El Badi palace was fired at a maximum temperature of 700°C in oxidizing atmosphere, while the one of Saadian Tombs was fired in the range 900-950 °C. The low firing temperature for Zellige facilitates the pieces cutting but it is responsible for the poor quality of these materials due to the absence of the vitreous phases. The results provide a scientific support for decision making in future conservation and restoration strategies of historical monumentsacross Morocco.
Research center :
CED du Marrakech
Disciplines :
Archaeology
Author, co-author :
El Halim, Mouhssin  ;  Université de Liège - ULiège > Form. doct. sc. (géol. - paysage)
Daoudi, Lahcen
El Ouahabi, Meriam  ;  Université de Liège - ULiège > Département de géologie > Argiles, géochimie et environnements sédimentaires
Fagel, Nathalie  ;  Université de Liège - ULiège > Département de géologie > Argiles, géochimie et environnements sédimentaires
Language :
English
Title :
Saadien Mosaic (Zellige) from historical monuments of Marrakech, Morocco: Degradation state and production technology
Publication date :
12 October 2017
Event name :
International Symposium: Architectural Patrimony and Local Building Materials 'APLOBMA'
Event organizer :
Faculté des sciences et techniques Irrachidia, Maroc.
Université Moulay Ismail Oujda, Maroc.
Event place :
Irrachidia, Morocco
Event date :
du 12 octobre au 14 octobre 2017
Audience :
International
References of the abstract :
Azrour, M.(dir.) International Symposium on Architectural patrimony and Local building Materials, Abstract Book, 2017
Name of the research project :
Etude de la dégradation des céramiques des monuments historiques de la région Marrakech (Maroc) et prospection des matériaux de substitution
Funders :
Faculté des sciences et techniques de Marrakech.
Unité Argile, Géochimie et Environnement Sédimentaire, Liège.
CNRST
Erasmus plus
WBI - Wallonie-Bruxelles International [BE]
Available on ORBi :
since 01 December 2017

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