A shale light hollow brick

Abstract

A shale light hollow brick is disclosed. The hollow brick is prepared from following raw materials by weight: 35-45 parts of shale, 25-30 parts of gangue, 10-14 of straw, 5-7 parts of clay, 3-5 parts of alumina, 2-4 parts of silica, 1-3 parts of magnesium oxide, 4-6 parts of ferrous ferric oxide, 5-7 parts of corundum, 3-6 parts of chromic oxide, 2-5 parts of silicon carbide and 5-8 parts of titanium dioxide. The beneficial effects of the hollow brick are that: after being fired, the hollow brick can be effectively resistant to heat and corrosion, fracture phenomena are prevented, and heat resistance is improved by 2-3 times.

Description

technical field [0001] The invention relates to a shale lightweight hollow brick. Background technique [0002] Shale bricks are bricks fired at high temperature using shale and coal gangue as raw materials. Most of the existing shale bricks have poor heat resistance and corrosion resistance, and are prone to rotation and fracture. Contents of the invention [0003] The object of the present invention is to provide a shale light body hollow brick aiming at the defects in the above-mentioned prior art. [0004] In order to achieve the above object, the technical solution provided by the present invention is: a shale lightweight hollow brick, which is prepared from the following raw materials in parts by weight: 35-45 parts of shale, 25-30 parts of coal gangue, 10 parts of straw -14 parts, 5-7 parts of clay, 3-5 parts of alumina, 2-4 parts of silicon dioxide, 1-3 parts of magnesium oxide, 4-6 parts of ferric oxide, 5-7 parts of corundum, 3-6 parts of chromium, 2-5 parts o...

AI Technical Summary

Problems solved by technology

Most of the existing shale bricks have poor heat resistance and corrosion resistance, and are prone to rotation and fracture