High-performance aerated tailing brick and preparation method thereof

Abstract

The invention relates to a high-performance aerated tailings brick, which comprises adding silane coupling agent, sodium lignosulfonate, phenolic resin and triethanolamine into ethanol and mixing evenly, and then adding clay tailings, fly ash and iron tailings , blast furnace slag, quicklime and cement are evenly mixed, and finally aluminum powder, water, straw fiber and glass fiber are added to obtain a slurry, and the finished product is obtained after steam curing treatment. In the present invention, the amount of fly ash is reduced, and a variety of other tailings are added, which reduces the water absorption and shrinkage of the finished product, and various components in the additive effectively improve the bonding performance and waterproof performance of the powder , The use of straw fiber and glass fiber further improves the tensile and compressive properties of the finished product. After the various components cooperate with each other, the strength of the finished product is stable for a long time, the service life is long, and it is safe and reliable.

Description

technical field [0001] The invention belongs to the technical field of aerated brick production, in particular to a high-performance aerated tailings brick and a preparation method thereof. Background technique [0002] Aerated brick is a light, porous building material with the advantages of light weight, good heat preservation and non-combustion. It is mainly made of silicon and calcium materials. Made finished product. The finished product contains a large number of uniform and fine pores, which can be made into blocks, plates and insulation products of different specifications, and are widely used in load-bearing or filling structures of industrial and civil buildings. The amount of fly ash in aerated bricks is relatively large. Although the production cost is reduced, it is found that the fly ash makes the finished product have high water absorption and drying shrinkage problems, which makes it very easy to use in construction projects. There are hazards of wall crack...

AI Technical Summary

Problems solved by technology

The amount of fly ash in aerated bricks is large. Although the production cost is reduced, it is found in actual use that fly ash causes problems such as high water absorption and drying shrinkage in the finished product, which makes it very easy to use in construction projects. There are hazards of wall cracks and structural damage, and there are problems in the overall formula deployment, such as: uneven distribution of air bubbles, etc., which will lead to a decrease in the load-bearing capacity of the finished product. Therefore, in many ways, the formula of aerated bricks still needs to be further refined Adjustment to ensure the safety and life of the aerated bricks in use

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