Advertisement

Refractories

, Volume 34, Issue 5–6, pp 313–322 | Cite as

Vibrational molding of ceramic concretes. Molding systems and the regularities of the process

  • Yu. E. Pivinskii
Article

Conclusions

We developed a vibrational molding process for obtaining ceramic concretes using rigid mixtures and metallic molds. The as-formed semifinished products are characterized by a fairly high mechanical strength. A siliceous (silica-based) ceramic concrete having a porosity of 12–16% and an ultimate compressive strength of 20–25 N/mm2 was obtained. The mechanism of structure evolution of the semifinished products was identified; it is determined by the interaction between the phases and fixing (orientation) of the liquid phase of the highly concentrated binder suspensions due to the molecular forces of the filler grains.

The decisive effect of the binder on the mechanical properties of the ceramic concretes was established. On decreasing the binder content of the ceramic concretes from 39 to 12%, their specific strength increases by 4 times.

Keywords

Porosity Siliceous Mold Compressive Strength Mechanical Strength 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    Yu. E. Pivinskii, Ceramic Binders and Ceramic Concretes [in Russian], Metallurgiya, Moscow (1990).Google Scholar
  2. 2.
    Yu. E. Pivinskii and M. A. Trubitsyn, “Refractory concretes of a new generation. Cementfree concretes,” Ogneupory, No. 8, 6–16 (1990).Google Scholar
  3. 3.
    Yu. E. Pivinskii, “Principles of the technology of ceramic concretes,” ibid., No. 2, 34–45 (1978).Google Scholar
  4. 4.
    P. L. Mityakin and Yu. E. Pivinskii, “Properties of quartz-based ceramic concretes,” ibid., No. 11, 48–53 (1980).Google Scholar
  5. 5.
    P. V. Protsenko, Vibratory Injection Method of Separate Concreting of Structures [in Russian], Stroiizdat, Moscow (1978).Google Scholar
  6. 6.
    Yu. E. Pivinskii, “Cast granular oxide refractories. Original systems and the regularities of molding,” Ogneupory, No. 6, 6–11 (1985).Google Scholar
  7. 7.
    Yu. E. Pivinskii, V. N. Nikitin, and T. M. Khranovskaya, “Vibrocast granular periclase refractories and some of their properties,” ibid., No. 8, 9–15 (1986).Google Scholar
  8. 8.
    I. I. Nemets, M. A. Trubitsyn, and V. A. Saushkin, “Unfired molded refractories based on the chamotte—quartz binder systems,” ibid., No. 10, 35–38 (1989).Google Scholar
  9. 9.
    N. B. Ur'ev, Physicochemical Principles of the Technology of Dispersed Systems and Materials [in Russian], Khimiya, Moscow (1988).Google Scholar
  10. 10.
    B. V. Deryagin, N. V. Churaev, and V. M. Muller, Surface Forces [in Russian], Nauka, Moscow (1987).Google Scholar
  11. 11.
    A. V. Lykov, Theory of Drying [in Russian], Énergiya, Moscow (1968).Google Scholar
  12. 12.
    M. Z. Simonov, Principles of the Technology of Light-Weight Concretes [in Russian], Stroiizdat, Moscow (1973).Google Scholar
  13. 13.
    I. N. Akhverdov, Physical Principles of Concretes [in Russian], Stroiizdat, Moscow (1981).Google Scholar
  14. 14.
    Yu. M. Chernoberezhskii, T. F. Girfanova, P. M. Labunets, et al., “Evaluation of the thickness of the boundary layers using the data concerning the stability and the degree of aggregation in an aqueous sol of quartz,” in: Surface Forces in Thin Films [in Russian], Nauka, Moscow (1979), pp. 67–71.Google Scholar
  15. 15.
    Yu. M. Bozhenov, Technology of Concretes [in Russian], Vysshaya Shkola, Moscow (1978).Google Scholar
  16. 16.
    O. A. Savinov and E. V. Lavrinovich, Vibrational Techniques of Densification and Molding of Concrete Mixtures [in Russian], Stroizdat, Moscow (1986).Google Scholar
  17. 17.
    A. A. Afanas'ev, Erection of Buildings and Structures Using Cast-in-Place Ferroconcrete [in Russian], Stroiizdat, Moscow (1990).Google Scholar
  18. 18.
    R. Ya. Popil'skii and Yu. E. Pivinskii, Compaction of Particulate Ceramic Bodies [in Russian], Metallurgiya, Moscow (1983).Google Scholar
  19. 19.
    B. V. Gusev and V. G. Zazimko, Vibration Technology of Concretes [in Russian], Budivel'nik, Kiev (1991).Google Scholar
  20. 20.
    P. I. Bozhenov, “Evolution of the technological characteristics of polydispersed synthetic meterials,” Stroit. Mater., No. 4, 15–19 (1992).Google Scholar
  21. 21.
    Yu. E. Pivinskii, “Some regularities of strengthening of unfired materials due to chemical activation of contact bonds,” Ogneupory, No. 9, 13–17 (1983).Google Scholar
  22. 22.
    Yu. E. Pivinskii, “Preparation and properties of siliceous structural ceramic concretes,” Stroit. Mater., No. 3 (1993).Google Scholar

Copyright information

© Plenum Publishing Corporation 1993

Authors and Affiliations

  • Yu. E. Pivinskii
    • 1
  1. 1.”Intersil” FirmUSSR

Personalised recommendations