Identification and use of white clayey deposits from the area of Tamra (northern Tunisia) as ceramic raw materials

B. Moussi, M. Medhioub, N. Hatira, J. Yans, W. Hajjaji, F. Rocha, J. A. Labrincha, F. Jamoussi

Research output: Contribution to journalArticle

Abstract

White clayey geomaterials were collected from northeast of the Nefza region (northern Tunisia). These deposits belong to the Mio-Pliocene molassic basins (basin of Tamra-Sidi Dris, Boukhchiba) and Oligocene Numidien in the area of El Aouinet. Analysis by X-ray diffraction showed associations of halloysite and kaolinite (Tamra), kaolinite and illite (Aouinet zone) and mixed layers, kaolinite and feldspars (Boukhchiba zone). Semi-industrial processed bricks showed promising characteristics and were visibly free of defects. Ceramic tiles had a bending strength that met the required standards but water absorption was somewhat high. So, to achieve higher quality, optimisation needs to be carried out in the formulation of batches or in the processing conditions. Finally, the incorporation in whitish sanitary-ware glaze formulations generated smooth coating layers that showed the required strong brightness and were free of defects.

Original languageEnglish
Pages (from-to)165-175
Number of pages11
JournalClay Minerals
Volume46
Issue number1
DOIs
Publication statusPublished - 1 Mar 2011

Fingerprint

Kaolin
Ceramic materials
ceramics
kaolinite
Raw materials
Deposits
defect
Glazes
halloysite
Defects
Water absorption
Tile
Brick
basin
Bending strength
illite
mixed layer
Oligocene
Luminance
coating

Keywords

  • bricks
  • ceramic applications
  • halloysite-kaolinite
  • Mio-Pliocene
  • Nefza
  • tiles
  • Tunisia
  • white clays

Cite this

Moussi, B. ; Medhioub, M. ; Hatira, N. ; Yans, J. ; Hajjaji, W. ; Rocha, F. ; Labrincha, J. A. ; Jamoussi, F. / Identification and use of white clayey deposits from the area of Tamra (northern Tunisia) as ceramic raw materials. In: Clay Minerals. 2011 ; Vol. 46, No. 1. pp. 165-175.
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Identification and use of white clayey deposits from the area of Tamra (northern Tunisia) as ceramic raw materials. / Moussi, B.; Medhioub, M.; Hatira, N.; Yans, J.; Hajjaji, W.; Rocha, F.; Labrincha, J. A.; Jamoussi, F.

In: Clay Minerals, Vol. 46, No. 1, 01.03.2011, p. 165-175.

Research output: Contribution to journalArticle

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AU - Moussi, B.

AU - Medhioub, M.

AU - Hatira, N.

AU - Yans, J.

AU - Hajjaji, W.

AU - Rocha, F.

AU - Labrincha, J. A.

AU - Jamoussi, F.

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