Ceramic Insulated Blocks Based on Local Raw Materials of the Republic of Karakalpakstan

The article devoted to the question of production of energy-efficient ceramic materials based on local raw materials of the Republic of Karakalpakstan. The usage of a porous non-burning filler in the composition of ceramic masses will make it possible to obtain materials with a reduced medium density (compared to traditional ceramic products), to use rigid mix designs with a low water content, significantly reducing the cost of drying products, while increasing the uniformity of the porous ceramic shard. The purpose of the research was to develop mix designs for porous ceramic products and to develop the schemes of their drying and firing. Granular foam glass was used as non-burning filler, which is sintered during firing with a ceramic shard into a single whole. Foam glass has a low average density (140–200 kg/m³), low water absorption (up to 5% by weight) and is fully compatible with a ceramic shard, which makes it possible to obtain isotropic products. The optimum density of the ceramic material is established as the result, which does not exceed 1400 kg/m³. Optimization of the most energy-intensive firing process was carried out by methods of mathematical planning and processing of experimental results. The optimal average density of crushed foam glass (140–150 kg/m³) was established for the firing process. Also, a nomogram for selecting parameters and evaluating the properties of the product depending on the consumption of foam glass and the firing temperature was obtained as a result of analytical optimization and graphical interpretation of the experimental results.

A.S. PILIPENKO¹, Candidate of Sciences (Engineering) (This email address is being protected from spambots. You need JavaScript enabled to view it.),
M.B. KADDO¹, Candidate of Sciences (Engineering), (This email address is being protected from spambots. You need JavaScript enabled to view it.);
M.O. ASAMATDINOV², Ph.D. (Engineering), (This email address is being protected from spambots. You need JavaScript enabled to view it.);
B.B. TURGANBAEV^1,2, Master student, (This email address is being protected from spambots. You need JavaScript enabled to view it.)

¹ National Research Moscow State University of Civil Engineering (26, Yaroslavskoye Highway, Moscow, 129337, Russian Federation)
² Karakalpak State University named after Berdakh (1, Ch. Abdirov Street, Nukus, 230112, Republic of Karakalpakstan, Uzbekistan)

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