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Thermostable alumina — Silica concretes based on chamotte — Quartz binder suspensions

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Abstract

Process techniques are proposed for separate addition of polydisperse filler fractions in the preparation of casting molding mixtures based on chamotte — quartz binder suspensions. The effect of the fractional composition of the filler in such mixtures on the physico- and thermomechanical properties of cementless concretes after drying and firing has been studied. A substantial increase in the thermal stability of concretes based on a chamotte — quartz binder suspension has been achieved by replacing fine (up to 2 mm) chamotte fillers in their composition with materials with a low temperature coefficient of linear expansion, such as SiC or cordierite.

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References

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Translated from Ogneupory, No. 4, pp. 2–6, April, 1994.

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Nemets, I.I., Trubitsyn, M.A. Thermostable alumina — Silica concretes based on chamotte — Quartz binder suspensions. Refractories 35, 111–115 (1994). https://doi.org/10.1007/BF02307147

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  • DOI: https://doi.org/10.1007/BF02307147

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