Investigation of the firing temperature effects on clay brick sample; Part-I: Mineralogical phase characterization

  • Narendra Bahadur Bohara Central Department of Chemistry, Tribhuvan University, GPO Box 2040, Kathmandu
  • Lal Bahadur Bhat Central Department of Chemistry, Tribhuvan University, GPO Box 2040, Kathmandu
  • Dol Bahadur Ghale Central Department of Chemistry, Tribhuvan University, GPO Box 2040, Kathmandu
  • Nirjan Duwal St. Xavier College, Thapathali, Kathmandu
  • Jagadeesh Bhattarai Central Department of Chemistry, Tribhuvan University, GPO Box 2040, Kathmandu
Keywords: Brick, Firing temperature, Phase composition, Clay minerals, XRD, FTIR

Abstract

Present research work was focused to investigate the firing temperature effects on mineralogical phase composition of nine clay bricks collected from the brick factory of Kathmandu valley using X-ray diffraction (XRD) patterns and Fourier transform infrared (FTIR) spectra analyses. Main mineralogical phases of quartz, feldspars, spinel, mullite and hematite in the brick specimens fired at different firing temperatures including muscovite type of mica mineral in the sun-dried brick specimen are identified from XRD and FTIR analyses. Disappearance of the muscovite type of mica clay mineral with feldspars enhanced to form alumina rich spinel phase at firing 900° to 1000° C, and finally the primary mullite phase in the fired clay brick samples is clearly observed at 1100° C firing temperature.

BIBECHANA 16 (2019) 122-130

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Abstract
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PDF
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Published
2018-11-22
How to Cite
Bohara, N., Bhat, L., Ghale, D., Duwal, N., & Bhattarai, J. (2018). Investigation of the firing temperature effects on clay brick sample; Part-I: Mineralogical phase characterization. BIBECHANA, 16, 122-130. https://doi.org/10.3126/bibechana.v16i0.21319
Section
Research Article