SU962257A1 - Composition for making ceramic products - Google Patents

Description

The invention relates to the building materials industry and can be used for the production of facing bricks and other building ceramics.

Ceramic mass ij is known for making facial ceramic stones and bricks, comprising the following components, wt%:

Loesslike breed 96.7 Lime paste 0.3 Mazut3

The disadvantage of this mass composition is the production of bricks with low limits of compression in compression C 125-150 kgf / cm), bending (45-50 kgf / cm) and cold resistance (28-50 cycles).

Closest to the proposed mass of 2j for the manufacture of ceramic products, mainly face brick, comprising the following components, wt.%:

ClayBase

Less22-27

Copper slag 20-25 The disadvantage of this composition is obtaining a brick of relatively low strength (in compression. 142 kgf / cm, bending 56 kgf / cm)

and low frost resistance (over 25 cycles).

The purpose of the invention is to increase the strength and frost resistance of products.

This goal is achieved by the fact that the mass production of ceramics, mainly face brick, including clay, loess rock and flux, contains c.

10 quality smooth spility-- rock with the following correlation of components, wt.%:

Clay 60-80

Loesslike breed 10-20

15

Spility - horn

breed 10-20

Spilites consist mainly of quartz and plagioclase (solid solutions of sodium and calcium feldspar 20), carbonized areas.

Spilites — the combination of plagioclases in the specified ceramic mixture leads to the appearance of fusible eutectics at an early stage of burning, which cause new formations and the formation of a ceramic structure.

In tab. 1 and 2 shows the chemical and mineralogical composition of the initial 30 components of the raw material. In preparing the ceramic mass, the clay is ground to a full pass through a 0.5 mm sieve. Spilits and loess are ground to full passage through a 1 mm sieve. The components are then mixed and moistened. moisture normal working consistency. Laboratory samples are formed from the moistened mass: cubes 50x50x50 mm for compression; for bending - beams 150x25x15 MM} - for water absorption and frost resistance - bricks 50x20x x10 mm. The molded specimens are dried under natural conditions. ppt SiO ,, A1.0, Glina Balkhsvinsky field-building, neither 14.03 51.08 13.19 5.73 Less of the Kul bsky region. Tajik SSR 13.81 50.16 11.15 4.75 Spility of the Gusharvi field 5, 93 57.3 14.19 7.35 The firing is carried out in a gas chamber furnace of periodic operation, raising the temperature at SOc / hG. (1050 C) 2 hours and cooled 26 hours. In table. 3 shows the composition of the proposed mass, and table. 4- their properties. As can be seen from the table. 4, the proposed ceramic mass makes it possible to obtain an orange facing brick with good physical and mechanical properties, as well as to use large reserves of rocks, spilites. Table 1 TiO CaO MgO SO 0.66 9.66 2.90 0.14 1.03 1.58 0.58 12.83 2.30 0.87 1.15 2.40 0.67 7.63 3, 87 0.16 2.12 0.78

Fraction size, mm,% by weight

Raw material

1-0, 063 I 0.06 3-0, 011 O, 01-0, 05 I 0.05-0.001 "0.001 3.90 43.73 19.28 60.53 14.09

Spility - mountainous breed

table 2

20.74 12.35 14.40. 10.19

15

20

Strength, kgf / cm, with:

compression 201 bend89

Water absorption,% 19.66 19.80 19.90

Frost resistance, cycles

Colour

Claims (1)

1. USSR Authorship Certificate No. 571461, cl. C04 B 33/00, 1976. 2, USSR Authorship Certificate 487862, class, .С04 In 33/00, 1974.