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The possibility of using copper-nickel ore dressing wastes as a component of ceramic masses for the production of ceramic tiles has been investigated. The optimal content of waste in ceramic masses and firing conditions have been determined. The physical and mechanical characteristics of the materials obtained have been studied. It has been established that the wastes of the concentration of copper-nickel ores can be used in the compositions of ceramic masses to obtain facing tiles with satisfactory properties: water absorption - 12.7 - 13.3%, bending strength - 10.0 - 12.9 MPa, frost resistance - more than 25 cycles. Tab. 3, bibliography: 3 titles.
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Facing and decorative glass-crystalline materials have been developed on the basis of mineral raw materials and industrial waste. The influence of the components present in mineral raw materials on the processes of liquation and crystallization of glasses has been studied. The resulting materials can be used in construction for wall cladding. Tab. 3, ill. 3, bibliography: 3 titles.
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Hits: 43930
A fundamentally new complex for the production of silicate melt from ash waste has been proposed. A mathematical model is formulated that describes the process of melting a charge in a furnace using combined sources of thermal energy - electric and gas. Il. 2, bibliography: 7 titles.
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Hits: 46143
The possibility of using granite screenings (granitoids) of the Mikashevichskoye deposit of the Republic of Belarus for obtaining porous heat-insulating materials has been investigated. The original glasses were synthesized using from 50 to 70% (by weight) granitoids and additional introduction of quartz sand, chalk and soda. The range of compositions with the required viscosity at foaming temperatures of 800 and 830 ° C has been determined. On the basis of these compositions, foam glass was obtained having a bulk density of 180 - 190 kg / m
3 , a compressive strength of 0.72 - 0.78 MPa and a thermal conductivity of 0.091 W / (m & # 903; K). The possibility of obtaining foam glass with the introduction of up to 60% of cheap natural raw materials into the composition of the charge has been proved. Tab. 1, ill. 3, bibliography: 10 titles.
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Hits: 46118
The possibility of obtaining chemically resistant plastic molding ceramics from masses on the basis of the complex use of associated mining products (plagioporphyr, quartz-biotite shale), alumina production waste (red mud) and polymineral clay is shown. The mechanism of intensification of sintering of masses with the introduction of a finely dispersed softener-flux and an increase in the alkali resistance of the material (up to 95%) during the formation of the crystalline system hematite - anorthite - quartz. Tab. 4, ill. 4, bibliography: 9 titles.
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Hits: 47986
The physicochemical and technological properties of sandy clay raw materials and technogenic wastes of isopropelene production have been investigated. The technological parameters of the production of building ceramics based on them are presented. Il. 3.
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Hits: 50031
The results of a study of the possibility of using a technogenic raw material - a catalyst - in the production of building ceramics are presented. The physicochemical properties and structural parameters of ceramic samples have been determined. When introducing a catalyst into the molding mass, the firing temperature of the samples should be increased, and its amount should not exceed 7-10%. Tab. 3, ill. 2, bibliography: 5 titles.
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Hits: 50345
The composition of the glaze based on the sludge of the regeneration of acidic effluents from the Dyatkovo Crystal Plant and the technology for producing colored glass-crystalline coatings for facade bricks have been developed. The main physical, technical and color characteristics of the developed glazes are given. Tab. 4, bibliography: 3 titles.
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Hits: 53096
The possibility of using feldspar raw materials of the Chupinsky GOK in the compositions of masses at factories producing ceramic facing tiles has been studied. The influence of this raw material on the shrinkage, water absorption and strength of products based on Cambrian clay from the Chekalovskoye deposit was studied, and their properties were compared with samples from the mass used by the Nikolsky Ceramic Plant. The use of quartz-feldspar waste dedusting allows you to exclude lime from the mass and reduce the amount of quartz sand requiring grinding. Tab. 2, ill. 1.
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Hits: 53047
The influence of foam glass additives on the physicomechanical and thermophysical properties of building ceramics is considered. The features of the formation of a porous structure are investigated depending on the properties of the starting materials. A new glass-ceramic material with improved thermal insulation properties has been obtained. Tab. 2, ill. 2, bibliography: 3 titles.
