Ceramics-Silikáty 61, (3) 183 - 187 (2017) |
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DESIGN OF EXPERIMENTS IN THE STUDY OF BAUXITE REFRACTORY CASTABLE PROPERTIES
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Kieliba Ilona 1, Podwórny Jacek 2, Szczerba Jacek 1
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1 AGH University of Science and Technology, Faculty of Materials Science and Ceramics, al. A. Mickiewicza 30, 30-059 Kraków, Poland
2 Institute of Ceramics and Building Materials, Refractory Materials Division in Gliwice, Poland
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Keywords: Plackett-Burman experimental design, Bauxite, Low-cement refractory castables
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This paper presents results of an investigation of the influence of preparation conditions of low-cement refractory castables on their service properties using experiment planning methods. Using the orthogonal Plackett-Burman design, the influence of the amount of water, vibration time, curing conditions and firing conditions on the service properties of the finished refractory castable (apparent density, open porosity, permanent linear changes, Young's modulus, bending strength and compressive strength at ambient temperature) is demonstrated. It is found that, among the investigated properties under the conditions of the conducted experiment, only the mixing time is a negligible factor that has no significant influence on the process of developing service properties of low-cement bauxite castables. |
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doi: 10.13168/cs.2017.0015
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