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Interceram is SCOPUS-listed!
SCImago Journal & Country Rank

  Abdel-Aziz, Doaa Abdel ; Ahmed, S.E. ; Abd El Rahim, S. H. ; Abd El Ghaffar, N. I.
Utilization of Granite Found in the Umm Had Area, Central Eastern Desert (Egypt), as Fluxing Material in the Preparation of Ceramic Recipes
Interceram 62 (2013) [6] 438-443
Raw Materials Worldwide


Abstract:
The Umm Had area is easily accessible following the Qusier-Qift asphalt road. Microscopically and petrochemically, Umm Had granitic rocks are classified into monzogranite, syenogranite and alkali feldspar granite. Granite represents a good source for the alkali oxides (K2O + Na2O) contained in the potash feldspar minerals (orthoclase and microcline) and the sodic plagioclase feldspar mineral (albite). These alkali feldspar minerals represent the main fluxing materials in ceramic recipes. A series of ceramic recipes was prepared by adding 30, 50, 60 and 70 mass-% of granite from Umm Had area, Central Eastern Desert, Egypt into the batch compositions. The sintering behaviour and degrees of densification of the ceramic bodies were evaluated by determining their physico-mechanical properties and characterizing them by scanning electron microscopy (SEM) and X-ray diffraction (XRD), respectively. Samples with 30, 50 and 60 mass-% granite fired at 1150 °C for 1 h showed a higher bulk density (??2.47g/cm3) and bending strength (30 and 36 MPa). However, the G70 sample fired at 1100 °C for 1 h showed a slightly decreased density value (2.40 g/cm3) and bending strength (25 MPa). The increased physico-mechanical properties were mainly due to lower water adsorption (??0.87%), in addition to the major crystalline phases and glassy matrix formed during the firing process. These results illustrate the possibility of utilizing granite in ceramic tile production.

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