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- Title
Effect of Calcined Magnesite Waste as Limestone Replacement on Properties of Ceramic Wall Tiles.
- Authors
Amin, Shereen Kamel; Youssef, Nadia Faheem; Abadir, Magdi Fouad
- Abstract
The waste utilized in this work is the coarse fraction of magnesia (MgO) that is discarded whenever only very fine magnesia active particles are required. This relatively inactive magnesia is produced when magnesite ore (MgCO3) is over fired around 1000 °C, using a simple method onsite, in the South Eastern Desert of Egypt. It is suggested to be used as partial or total replacement of raw limestone extracted from El-Menia (Upper Egypt) used in the preparation of the basic mixture of ceramic wall tiles. The experimental program includes assessment of eight Egyptian raw materials as well as calcined magnesite waste. Four mixtures were suggested to be used as partial to total replacement of limestone by calcined magnesite waste. Both glazed and unglazed samples were prepared out of each mixture, pressed into tile form, dried and fired through a single fast firing technique. Physical, chemical, and mechanical properties were then measured and compared to both ISO and Egyptian Standards. Fired samples were also subjected to XRD and SEM in order to assess the existing phases and minerals. All the prepared mixtures showed conformity to both Egyptian and International standards of ceramic wall tiles. Although this replacement did not improve the basic mixture quality tiles, it can however be recommended for its economic, environmental and sustainable benefits
- Subjects
MAGNESITE; LIMESTONE; TILES; RAW materials; BUILDING material standards; PRODUCT quality; SUSTAINABLE development
- Publication
International Review of Chemical Engineering - Rapid Communications, 2012, Vol 4, Issue 6, p568
- ISSN
2035-1755
- Publication type
Article