Three different claybinders (Mfensi, Afari, and Fosu clays) were used to improve the plasticity of lithomargic clay. Lithomargic clay binder formulations were produced in a ratio of 4:1 by mixing, moulding, drying and firing at 1350°C for 2 hours. Properties including linear firing shrinkage, bulk density, apparent porosity, water absorption, and cold crushing strength were measured. The modulus of rupture of the fired bricks was measured before and after thermal cycling to evaluate their thermal shock resistance. The results show that the properties of the fired bricks depend strongly on the chemical composition of the clay binders. Mfensi clay exhibited good combination of properties with low water absorption, very good cold crushing strength and thermal shock resistance.
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References
F.W. YMomade, S. K. Y. Gawu, “Geochemical and mineralogical characteristics of lithomargic clay types from Awaso bauxite deposit, Ghana: implications for possible industrial utilization,” J. Sci. Technol., 29(2), 386 – 392 (2009).
A. Andrews, J. Adam, S. K. Y. Gawu, “Development of fireclay aluminosilicate refractory from lithomargic clay deposits,” Ceram. Int., 39, 779 – 783 (2012).
A. Andrews, J. Adam, S. K. Y. Gawu, P. A. Olubambi, “Synthesis Optimization of Fireclay Refractories from Lithomargic Clay,” Ceram. Forum Int., 90, E1 – E3(2013).
R. D. Walker, Modern iron making methods, London: Institute of Metals (1986).
G. Stam, Thermo-mechanical modelling of mini pan with two brick types, The Netherlands: Corus research and development (1999).
M. V. Swain, “Quasi-Brittle Behavior of Ceramics and its Relevance for Thermal Shock,” Eng. Fract. Mech., 40(4/5), 871 – 877 (1991).
Y. Muroh, S. Arakawa, The Criterion of Crack Growth Under Thermal Shock in Sialon, in Fracture Mechanics of Ceramics, Eds. R. C. Bradt, D. P. H. Hasselman, D. Munz, M. Sakai, V. Y. Shevchenko, Plenum Press, New York (1996), p. 495.
T. Anderson, D. J. Rowcliffe, “Thermal Cycling of Indented Ceramic Materials,” J. Eur. Ceram. Soc., 18, 2065 – 2071(1998).
Y. W. Bao, X. H. Wang, H. B. Zhang, Y. C. Zhou, “Thermal Shock Behaviour of Ti3AlC2 from between 200°C and 1300°C,” J. Eur. Ceram. Soc., 25, 3367 – 3374 (2005).
S. N. Monteiro, C. M. F. Viera., “The role of particle shape on the sintering of clay based ceramics,” Mater. Sci. Forum, 660 – 661, 88 – 93 (2010).
J. A. Bain, “A plasticity chart as an aid to the identification and assessment of industrial clays,” Clay Miner., 9, 1 – 17 (1971).
J. F. Shackelford, R. H. Doremus, Ceramics and Glass Materials. New York: Springer (2008).
N. Ntakaburimvo, C. Allaire, J. Sebbani, Influence of the firing temperature and mineralogy on the thermo-mechanical behavior of aluminosilicate refractory castables, Canadian institute of mining, (CIM) proceedings, Canada (2002).
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Translated from Novye Ogneupory, No. 4, pp. 39 – 44, April, 2014.
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Andrews, A., Gawu, S.K.Y., Appiah, M. et al. Strength of Lithomargic Clay Based Refractories After Thermal Cycling. Refract Ind Ceram 55, 143–147 (2014). https://doi.org/10.1007/s11148-014-9677-0
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DOI: https://doi.org/10.1007/s11148-014-9677-0