RU2525097C1 - Ceramic mass for brick production - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: ceramic mass for brick production contains, wt %: clay 77.8-83.8; rejected bricks ground to specific surface of 2500-3000 cm²/g after drying 0.1-1.0; glass fibre wastes ground to specific surface of 2500-3000 cm²/g - 0.1-3.0; tuff ground to specific surface of 2500-3000 cm²/g - 15.0-21.0; glycerine 0.05-0.1. Frost resistance makes 100-110 cycles. Bricks are baked at 1000°C.

EFFECT: higher frost resistance of bricks.

1 tbl

Description

The invention relates to the building materials industry and relates to compositions of ceramic materials for the production of bricks.

Known ceramic mass containing, wt.%: Clay 76-79; coal 1-1.5; crushed brick scrap after drying 0.5-0.9; shredded fiberglass waste - the rest [1].

The objective of the invention is to increase the frost resistance of the brick obtained from the ceramic mass.

The technical result is achieved by the fact that the ceramic mass for brick production containing clay, crushed brick scrap after drying, crushed fiberglass waste, further includes crushed tufa and glycerin, and the components are in the following ratio, wt.%: Clay 77.8-83, 8; crushed to a specific surface of 2500-3000 cm ² / g marriage of bricks after drying 0.1-1.0; glass fiber wastes shredded to a specific surface of 2500-3000 cm ² / g 0.1-1.0; crushed to a specific surface of 2500-3000 cm ² / g tuff 15.0-21.0; glycerin 0.05-0.1.

The compositions of the ceramic mass for the production of bricks are given in the table.

Table Components Composition, wt.%: one 2 3 Clay 83.8 80.95 77.8 Crushed to a specific surface of 2500-3000 cm ² / g marriage of bricks after drying 0.1 0.5 1,0 Glass fiber wastes shredded to a specific surface of 2500-3000 cm ² / g 1,0 0.5 0.1 Ground to a specific surface of 2500-3000 cm ² / g tuff 15.0 18.0 21.0 Glycerol 0.1 0.05 0.1 Frost resistance cycles 100-110 100-110 100-110

To prepare the ceramic mass, high-quality clays (brick) of any deposits can be used, for example, clay of the Malo-Stupkinskoye deposit, characterized by the following chemical composition, wt.%: SiO ₂ 52.0-75.1; Al ₂ O ₃ 12.67-21.94; Fe ₂ O ₃ 2.7-6.44; CaO 1.76-7.07; MgO 1.08-5.42; SO ₃ 0.87; p.p.p. 3.01-4.2.

Ceramic mass is prepared as follows. The components are dosed in the required quantities, mixed, and if necessary, water is added. The humidity of the ceramic mass is selected in the range of 18-23%. Brick is molded from the ceramic mass in a plastic way, which is dried to a moisture content of not more than 6% and fired at a temperature of 1000 ° C. Perhaps preliminary engobing the surface (spoons, poke) of the dried brick before firing.

Information sources

1. A.S. USSR No. 631494, С04В 33/00, 1978.

Claims (1)

Ceramic mass for the production of bricks containing clay, crushed brick scrap after drying, crushed fiberglass waste, characterized in that it further includes crushed tufa and glycerin, the components being in the following ratio, wt.%: Clay 77.8-83.8; crushed to a specific surface of 2500-3000 cm ² / g marriage of bricks after drying 0.1-1.0; glass fiber wastes shredded to a specific surface of 2500-3000 cm ² / g 0.1-1.0; crushed to a specific surface of 2500-3000 cm ² / g tuff 15.0-21.0; glycerin 0.05-0.1.