The results of research on the use of sludge formed during the purification of drinking water (WSP), which contains about 68 Fe 2 O 3 , as an additive in the production of effective ceramic products. In the manufacture of effective ceramic products, an additive SHOPV was introduced into the charge in an amount of 40 60, the firing temperature of ceramic products was 900, 1000, and 1050 C. Studies have shown that the addition of SHOPV has the following effect on the properties of ceramic specimens: it reduces density, compressive strength, thermal conductivity, and increases porosity. SHOPV is a natural pigment that colors ceramics in a darker red color.
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