Abstract
At present, there is a trend towards increasing demand for ceramic products with enhanced physical and mechanical properties. This study is aimed at developing scientifically grounded compositions of ceramic products that maximize the use of local low-quality aluminosilicate raw materials and secondary raw materials in brick-making technology. Characteristics of local low-melting clays and industrial waste in the form of drilling slurry with minimum percentage of petroleum product were studied and presented in this paper. Standard methods for determining physical and mechanical properties of bricks, physicochemical and statistical methods of research are used as a methodological framework. The paper shows effects of drilling slurry with an increased content of calcium oxide on the composition, physical and mechanical properties of wall ceramics, as well as effects of composition of low-quality local clays and slurries on the structure and properties of ceramic materials. The modifying role of container glass and its effects on properties of a synthesized ceramic piece were studied and presented.
Highlights
Priority objectives for the building materials industry, including manufacturers of building ceramics, are to improve energy efficiency of production and to reduce the ecological footprint of industrial products
Despite the presence of basic minerals in the composition of aluminosilicate raw materials, each clay deposit has its own features. These differences arise from conditions of deposit formation in different geological periods, mineralogical and chemical compositions, thickness of accumulations of useful raw materials and overburdens [1]
A ceramic piece is characterized by high water absorption capacity and loose structure due to high content of carbonate inclusions, silt and sand
Summary
Priority objectives for the building materials industry, including manufacturers of building ceramics, are to improve energy efficiency of production and to reduce the ecological footprint of industrial products. Clays are one of the main components of ceramic products around the world. Despite the presence of basic minerals in the composition of aluminosilicate raw materials, each clay deposit has its own features. These differences arise from conditions of deposit formation in different geological periods, mineralogical and chemical compositions, thickness of accumulations of useful raw materials and overburdens [1]. Most of local argillaceous rocks around the world are lowmelting. Rock forming minerals are represented by mixed layered hydromicamontmorillonite formations. Disadvantages of these clays are a narrow sintering range and low fire resistance. A ceramic piece is characterized by high water absorption capacity and loose structure due to high content of carbonate inclusions, silt and sand
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