Shale composite sintering brick and preparing technique thereof

Abstract

The invention discloses a shale compound sintered brick. The brick is made from the following raw materials with weight percentages: 30-98% of shale, 0-40% of slag and 2-50% of light aggregate. The production technology comprises the following steps: the shale is crushed, the crushed shale is evenly mixed with the light aggregate, or the crushed shale is evenly mixed with the slag and the light aggregate to obtain a mixture; the mixture obtained in the step two is added with water and evenly mixed to obtain adobe stock, the water accounts for 5-30% of the weight of the mixture; the adobe stock obtained in the step three is made into green brick; the green brick is dried; the dried green brick is piled and sintered in a kiln. The sintered brick leaves a large amount of air holes after the brick body is sintered, the air holes prevent heat bridges from forming, therefore, the brick has good thermal insulation property and the specific weight of the brick body is greatly reduced. The sintered brick can be used for making bearing and non-bearing walls.

Description

technical field [0001] The invention relates to a shale composite sintered brick and a production process thereof. Background technique [0002] In the existing building materials, shale composite sintered bricks have been widely used, but such shale composite sintered bricks are generally made of shale and waste residue, which can make use of the impermeable characteristics of shale to make firing The brick has good waterproof performance and the waste residue can be used to achieve the basic performance of building bricks. Its thermal insulation performance is mainly achieved by setting holes on the brick body, so the inevitable thermal bridge makes its thermal insulation performance limited. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a shale composite sintered brick capable of effectively improving thermal insulation performance and a production process thereof. [0004] The shale composite sintered brick provided by the presen...

AI Technical Summary

Problems solved by technology

[0002] Shale composite sintered bricks have been widely used in existing building materials, but this kind of shale composite sintered bricks are generally made of shale and waste residue, which can make use of the impermeable characteristics of shale to make firing The bricks have good water resistance and make the waste slag be used to achieve the basic performance of building bricks. Its thermal insulation performance is mainly realized by setting holes in the brick body, so the inevitable existence of thermal bridges makes its thermal insulation performance limited.

Images