USE OF THE TECHNOLOGY OF CERAMOCONCRETE
IN THE MANUFACTURE OF RUNNER CLAY, MASONRY MORTAR,
PROTECTIVE COATINGS, AND REPAIR COMPOUNDS
S. M. Mal’tsev
Translated from Novye Ogneupory,No.6,pp.3–6,June, 2010.
Original article submitted March 22, 2010.
It is shown that the use of inexpensive, domestically produced refractory materials that have been produced
according to the technology of refractories has shown promise for the manufacture of dry mixtures, runner
clay and repair compounds, masonry mortar, and protective coatings. The dry mixtures are intended for the
production of cast-in-place linings and large-block shaped articles with uniform structure that are resistant to
corrosive media and exhibit high thermal stability. In terms of chemical composition, masonry mortar and pro
tective coatings conform to the operating conditions. Following deposition on a working surface, the com
pounds used for hot repair experience a sharp rise in temperature.
Keywords: ceramoconcrete, dry refractory mixtures, melts, masonry mortar, repair compounds, protective
Refractory materials have been developed at the refracto-
ries laboratory of ZAO Solyzteplostroi based on the technol-
ogy of ceramoconcrete for use in thermal power plants under
different operating conditions. Considerable experience has
been accumulated in the use of the newly developed articles
in the chemical industry and in nonferrous metallurgy, in par
ticular, in chlorinators, electrolysers and fluidized-bed fur
naces in magnesium plants in the form of troughs and
screens in the sector working with large billets, etc. The
newly developed materials are used in the manufacture of
coal-ash slag, cast-in-place furnace lining, and the lining ele
ments of the trolleys of tunnel-type furnaces. Studies in the
area of heat-insulating articles have also begun to find uses.
The application of the technology of ceramoconcrete in the
manufacture of refractory articles has made it possible to cre
ate serious competition to foreign analogs.
The laboratory of ZAO Soyuzteplostroi was given the
task of developing on the basis of this technology dry refrac
tory mixtures with storage period up to 6 months in a hermet
ically sealed box that are technologically efficient for the
manufacture of cast-in-place furnace lining and large and
complexly shaped articles. The finished article must be resis
tant to melts of cast iron and slag, possess reduced wetting
angle by melts and high thermal stability, mechanical
strength, and refractoriness. Similar studies have been car-
ried out at OAO Dinur under the scientific direction of
Dr. (technical sciences) Yu. E. Pivinskii, and the newly de-
veloped compounds have already found applications.
turn, specialists at ZAO Soyuzteplostroi, facing a critical sit
uation, have attempted to reduce production costs through
the use of inexpensive domestic raw material. Masonry mor
tar and repair compounds for hot repairs, supplied in both the
dry and in the plastic state, have been developed.
Refractory aluminosilicate crucibles in which the cast
iron floats with slag obtained from OAO NTMK at 1500°C
for 2 h have been developed for these purposes. The SiC re
fractory compound (brand F40) was added in order to reduce
the wetting angle of the melt and, correspondingly, increase
the resitance of the material. In its optimal composition, the
compound contains Al
(³28%) and SiC (³15%). Follow
ing drying of the crucibles at 150°C, three smelting cycles or
melting of calcium oxide are peformed in the crucibles; no
corrosion of the silicon bond of the crucible or penetration of
the melt into the pores was observed (Fig. 1, a). Additional
carbidization of the material was performed, which is notice
able from the change in color of the matieral.
Refractories and Industrial Ceramics Vol. 51, No. 3, 2010
1083-4877/10/5103-0137 © 2010 Springer Science+Business Media, Inc.
From the proceedings of the International Conference of Metal
lurgists and Refractory Workers (April 22 – 23, 2010, Moscow).
ZAO Soyuzteplostroi, St. Petersburg.
E. M. Grishpun and Yu. E. Pivinsikii, Two decades of coopera
tion, Novye Ogneupory, No. 1, 15 – 25 (2007).