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  1. 1 Amkpa J. A.

  2. 1 Aye A. E.

  3. 1 Omagu F. E.

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Mechanical and Physicochemical Evaluation of Alkaleri Fireclay for Refractory Application

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Amkpa J. A., Aye A. E., Omagu F. E.
Path of Science
|
2017
|
vol. 3
|
issue 4
6.15-6.20
EN
The mechanical, chemical and physical property of Alkaleri fireclay was investigated for its appropriateness for refractory application. The chemical composition was performed and analyzed using the X-ray fluorescence (XRF) spectrometer Bench top XRF analyzer technique. Chemical property result indicated that the clay contained 67.4 % silica (SiO2), 30.06 % aluminum (Al2O3), and other impurities. The clay was subjected to mechanical activation through sintering process at varied sintering temperatures of 900 °C, 1000 °C, 1100 °C and 1200 °C. At the best sintering temperature of 1200 °C, the cold crushing strength (CCS) was 17.82 MPa, in the physical properties; apparent porosity was 22.8 %, bulk density was 1.8 g/cm3, and firing shrinkage was 8.9 %. The Alkaleri clay belongs to alumino-silicate fireclay group and therefore, suitable materials for refractory application of ladle, kiln dryer, boilers, cook stoves, furnace lining and bricks.
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