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Cement-Free Refractory Concretes. Part 4. Refractory Concretes based on Silica Sol Binders

  • SCIENTIFIC RESEARCH AND DEVELOPMENT
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Refractories and Industrial Ceramics Aims and scope

Compositions, technology features, and the main properties of cement-free refractory concretes (CFRC) based on a silica-sol binder are considered. Concretes of high-alumina and corundum compositions of CFRC, as well as in the Al2O3–SiO2–SiC–C system predominate in this group. Improved thermal and thermomechanical properties of CFRC compared with the properties of LCRC are largely due to mullitization as a result of interaction of nanodispersed SiO2 (silica sol and microsilica) with reactive alumina of the matrix system. Extensive and effective use of CFRC based on silica binders is achieved in blast furnace production (chutes, cold and hot shotcreted blast furnace shafts) and for lining cement production furnaces.

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  1. OOO NVF Kerambet-Ogneupor, St. Petersburg, Russia

    Yu. E. Pivinskii

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  1. Yu. E. Pivinskii
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Correspondence to Yu. E. Pivinskii.

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Translated from Novye Ogneupory, No. 3, pp. 20 – 29, March, 2020.

Parts 1 and 2 of the article published in Novye Ogneupory Nos. 9 and 11 (2019), and part 3 in No. 1 (2020).

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Pivinskii, Y.E. Cement-Free Refractory Concretes. Part 4. Refractory Concretes based on Silica Sol Binders. Refract Ind Ceram 61, 150–158 (2020). https://doi.org/10.1007/s11148-020-00447-7

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  • DOI: https://doi.org/10.1007/s11148-020-00447-7

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