Preparation of Sintered Glass-Ceramic from CRT Glass and Red Gypsum Wastes for Tiling Application
| Autor: | M. M. Idham, M. M. Haniza |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | IOP Conference Series: Materials Science and Engineering. 713:012008 |
| ISSN: | 1757-899X 1757-8981 |
| DOI: | 10.1088/1757-899x/713/1/012008 |
| Popis: | This study aims to prepare sintered glass-ceramic (SGC) from a combination of cathode ray tube glass and red gypsum wastes specifically for tiling application. Bentonite clay which acted as a binder was also added to the prepared formulation. The starting materials were milled individually, mixed and compacted into button shape by using a uniaxial hydraulic press machine. The effects of sintering temperature and red gypsum content on the physical- mechanical properties and crystallization behaviour were investigated. The test results revealed that the glass-ceramic sintered at 850°C with 20 wt.% of red gypsum gave the best combination of physical-mechanical properties. Modulus of rupture and linear shrinkage were measured at 33.75 MPa and 6.47 %, respectively. Water absorption was low enough and recorded at 0.4759 % while the density was measured at 2.6638 g/cm3. The results also discovered that increasing red gypsum content by 10 wt.% and sintered at similar temperature deteriorated the quality of the glass-ceramic. Therefore, this particular sintered glass-ceramic has the potential to be used as outdoor walkway tile or brick owing to the high physical-mechanical properties, colour suitability as well as low production cost. |
| Databáze: | OpenAIRE |
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