RU2392247C1 - Ceramic mass for ceramic brick fabrication - Google Patents

Abstract

FIELD: construction. ^ SUBSTANCE: ceramic mass for production of ceramic brick includes clayey part of zircon-ilmenite ores gravitation tails and product of andesite-basalt charge combustion in production of mineral wool with the content of the following components, wt %: SiO2 - 55.2; Al2O3 - 18.4; Fe2O3 - 9.3; CaO - 9.1; MgO - 6.3; R2O - 4.9; at the following ratio of components, wt %: clayey part of zircon-ilmenite ores gravitation tails - 70-90; product of andesite-basalt charge combustion in production of mineral wool - 10-30. ^ EFFECT: improved frost resistance of products. ^ 3 tbl

Description

The invention relates to the industry of ceramic materials, mainly to compositions of the masses for ceramic bricks.

The ceramic mass for producing bricks of the following composition is known, wt.%: Clay part of the “tails” of gravity of zircon-ilmenite ores - 20-70, ash TPP - 30-80 / Abdrakhimov DV Ceramic brick from industrial wastes / D.V. Abdrakhimov, E.S. Abdrakhimova, V.Z. Abdrakhimov // Building materials. - 1999. - No. 9. - S. 34-35 / [1].

The disadvantage of this composition is the relatively low frost resistance (14-30 cycles).

Closest to the invention is a ceramic mass for the manufacture of bricks, comprising the following components, wt.%: The clay part of the "tails" of gravity of zircon-ilmenite ores - 50; product from the combustion of basalt mixture - 50 / Vdovina E.V. Obtaining ceramic material from industrial wastes without the use of traditional natural raw materials / E.V. Vdovina, A.V. Abdrakhimov, E.S. Abdrakhimova, V.Z. Abdrakhimov // Ecology and Industry of Russia, September 2007. P.23-25 / [2]. Adopted for the prototype.

The disadvantage of this composition of the ceramic mass is the relatively low mechanical strength.

The essence of the invention is improving the quality of ceramic bricks.

The technical result of the invention is to increase frost resistance and mechanical compressive strength of bricks.

The specified technical result is achieved by the fact that in the well-known ceramic mass, including the clay part of the “tails” of gravity of zircon-ilmenite ores, an additional product is introduced from the combustion of andesitobasaltic batch of production of mineral wool in the following ratio of components, wt.%:

clay part of the “tails” of gravity zircon-ilmenite ores 70-90

product from the combustion of andesitobasaltic batch of production of mineral wool with a content, wt.%:

SiO ₂ 55.2; Al ₂ O ₃ - 18.4; Fe ₂ O ₃ - 9.3; CaO - 9.1; MgO - 6.3; R ₂ O - 4.9 10-30

The product from the combustion of andesitobasaltic mixture is formed in the production of mineral wool and is used in the ceramic mass for the production of bricks as a cleaner and sintering intensifier. Having a high content of iron oxides (Fe ₂ O ₃ - 9.3%) and alkalis (R ₂ O - 4.9%), the product from the combustion of andesitobasaltic mixture intensifies firing processes. The chemical composition of the product from the combustion of andesitobasaltic charge is presented in table 1.

Table 1
Chemical compositions of components Components The content of oxides, wt.% SiO ₂ Al ₂ O ₃ CaO MgO Fe ₂ About ₃ R ₂ O SO ₃ P.p.p. The clay part of the “tails” of gravity of zircon-ilmenite ores 58.70 23.39 1.80 1.22 5.55 1,62 0.11 7.1 Product from the combustion of andesitobasaltic batch of mineral wool production 55,2 18,4 9.1 6.3 9.3 4.9 0.2 0.7

The clay part of the “tails” of gravity of zircon-ilmenite ores, the chemical composition of which is shown in Table 1, was used as the main clay raw material for the production of ceramic bricks.

Information confirming the possibility of carrying out the invention. The ceramic mass was prepared in a plastic way at a moisture content of 20-24%, from which the brick was molded, raw brick was dried to a moisture content of not more than 8% and then fired at a temperature of 1050 ° C. Table 2 shows the compositions of ceramic masses, and in table 3 the physical and mechanical properties of bricks.

table 2
The compositions of ceramic masses Components The content of components, wt.% one 2 3 The clay part of the “tails” of gravity of zircon-ilmenite ores 90 80 70 Product from the combustion of andesitobasaltic batch of mineral wool production 10 twenty thirty

Table 3
Physico-mechanical properties of bricks Indicators Compositions Prototype one 2 3 Frost resistance cycles 54 58 64 thirty Mechanical compressive strength, MPa 19.5 20,4 21.8 15,2

As can be seen from table 3, the bricks from the proposed compositions have higher rates of frost resistance and compressive strength than the prototype.

The resulting technical solution when using the product from the combustion of andesitobasaltic batch of mineral wool production can significantly increase the frost resistance and strength of the brick.

The use of technogenic raw materials in the production of bricks contributes to the utilization of industrial waste, environmental protection, and the expansion of the raw material base for ceramic materials.

INFORMATION SOURCES

1. Abdrakhimov D.V. Ceramic brick from industrial wastes / D.V. Abdrakhimov, E.S. Abdrakhimova, V.Z. Abdrakhimov // Building materials. - 1999. - No. 9. - S. 34-35.

2. Vdovina E.V. Obtaining ceramic material from industrial wastes without the use of traditional natural raw materials / E.V. Vdovina, A.V. Abdrakhimov, E.S. Abdrakhimova, V.Z. Abdrakhimov // Ecology and Industry of Russia, September 2007. P.23-25 .

Claims (1)

Ceramic mass for the manufacture of ceramic bricks, including the clay part of the “tails” of gravity of zircon-ilmenite ores, characterized in that it further comprises a product from the combustion of andesitobasaltic batch of production of mineral wool with a content, wt.%: SiO ₂ 55.2; Al ₂ O ₃ 18.4; Fe ₂ O ₃ 9.3; CaO 9.1; MgO 6.3; R ₂ O 4.9 in the following ratio of components, wt.%:
clay part of the “tails” gravity of zircon-ilmenite ores 70-90; product from andesitobasaltic combustion mineral wool production charges 10-30