SU1102788A1 - Ceramic composition - Google Patents

Abstract

CERAMIC MASS, mainly for the manufacture of facade tiles, including the rock and cladding rock, clay and alkaline flux, characterized in that, in order to reduce water absorption, increase frost resistance and eliminate the black core, it contains as a mineral gel, which has a non-refractory layer and a black hearth, and contains a black hearth, which contains a soft clay and a black hearth. marl with the following ss ratio of components, wt.%; High-alumina 20-30 overburden rock 15-20 Nefelin-syenite 3-5 Mergel Else Clay "L

Description

uh

ND

50 EO i The invention relates to the industrial construction of materials, mainly to the production of ceramic tiles and floor tiles. The known mass for the manufacture of facade ceramic tiles is lj, which includes the following components, wt%: Clay50 Quartz sand 10 Cullet 30 Nephage-syenite 10 The disadvantage of this ceramic mass is the production of facade tiles with relatively low frost resistance 35 cycles and water absorption 6-8 % Closest to the proposed invention is a ceramic mass for the manufacture of facing tiles 2j, including the following components,% by weight: Clay 20-45 Cullet 15-20 High-alumina scraped 45-50 The disadvantage of this composition is the manufacture of tiles with relatively low levels of water 6.3–7% and 35 cold cycles J as well as black heart on the inside of the tiles, reducing the performance characteristics of the latter. The purpose of the invention is to reduce water absorption, increase frost resistance and elimination of the black core. . This goal is achieved by the fact that the ceramic mass, mainly for the manufacture of facade plastering, including high-alumina overburden rock, clay and alkali-containing flux, contains syenite as an alkali-containing smooth oil, and additionally marl in the following ratio of components, May. 20-30 sunflower breed 15-20 Nepheline-syenite 3-5 Marl Clay Else The chemical composition of the components used is given in table. 1. Clay belongs to the group of acid clay materials, is moderate plastic and non-caking, high-alumina open-cut rock is a coal-hydromica that is not soaked in water; marl is melopodobny sedimentary rock, clay component is represented by montmorillonite. The nepheline-syenite concentrate is wet-kneaded in a ball mill with the addition of 3% clay from the batch mass for 6 hours to a residue on a 0063-4% sieve. After that, a low-melting clay, marl, high-alumina rock is loaded into a ball mill and jointly ground for 1.5 hours. The resulting slurry with a moisture content of 49.2% is filtered through a sieve 02 and by means of partial dehydration a press powder with a moisture content of 7% is obtained. The tiles are pressed on a hydraulic press with a specific pressure of 30 MPa. The pressed tiles are dried in a laboratory drying cabinet at 100–110 ° C to a residual moisture content of 0.2%. Dried tiles are burned in a silicon oven at 1020-1050 C. The composition of the ceramic masses and the physicomechanical properties of the tiles are given in Table. 2. Black is the heart of the tiles made from the proposed formulations. Completely absent. Increasing or decreasing the amount of high alumina rock and marl beyond the limits of the proposed composition increases the water absorption of tiles. The use of the proposed composition of the ceramic mass makes it possible, along with the disposal of mining industry waste, to improve the quality of products.

Tiq components. I Al. About jFe / O j FeO CoO MgO Na, 0 K.O Clay fusible 6A, 86 0.7 7 10.42 3.09 1, U 5.86 High-grade-. yozemite overburden 33.11 0.89 24.86 21.68 5.16 0.72 Nefelincynite 44.09 - 29.23 3.08 - 1.28 Marl 13.450.36 3.31 1.37 0.02

Table 1

Content of oxides, Z MnO P 0 (bag 1.14 0.57 1.54 0.26 10.39 100 0.27 0.14 0.75 0.36 12.03 100 0.81 12.13 7, 85 - 1.53 100 0.45 0.14 0.750.1 36.33100

table 2

Claims (2)

CERAMIC MASS, mainly for the manufacture of facade tiles, including high-alumina overburden, clay and alkali-containing melt, characterized in that, in order to reduce water absorption, increase frost resistance and eliminate black core, it contains nepheline-syenite and additionally Mergel as an alkali-containing melt. in the following ratio of components, wt.%: High-alumina overburden Nepheline-syenite Mergel Clay 20-30 15-20 3-5 Else: 30'30 g