Sidewalk brick prepared from residual ash of aluminum ash residue

Abstract

The invention discloses a sidewalk brick prepared from residual ash of aluminum ash residue. The sidewalk brick is prepared the following raw material components in parts by weight: 45-60 parts of theresidual ash of the aluminum ash residue, 5-10 parts of quick lime, 3-5 parts of gypsum, 8-12 parts of slaked lime, 10-20 parts of ordinary Portland cement, 2-5 parts of silica fume and 5-10 parts ofengineering sand; and the sidewalk brick is further prepared from the following raw material components in percentage by weight of the total amount of the ordinary Portland cement and the slaked lime: 0.5-1% of a high-performance water reducer, 0.5%-1.5% of rock sand crystals and 0.5%-1% of calcium formate. By utilizing residual ash waste of the aluminum ash residue, the sidewalk brick has the characteristic of low production cost; and the problem that the ecological environment is influenced by accumulated aluminum ash is effectively solved, the resources are regenerated and utilized, and the sidewalk brick has an important practical value.

Description

technical field [0001] The present disclosure generally relates to the field of brick making, specifically to the technical field of preparing sidewalk bricks, and in particular to a sidewalk brick prepared from aluminum ash residue. Background technique [0002] With the rapid development of my country's economy, the demand for aluminum continues to increase. my country has become the world's largest aluminum producer. With the wide application of metal aluminum, the production of aluminum ash is also increasing. Aluminum ash is the product of the slag produced in the production process of electrolytic aluminum or cast aluminum after cooling and processing, and it is a renewable resource. At present, the processing method of aluminum ash in my country is mainly based on accumulation. On the one hand, slag piles occupy a large amount of land; [0003] Aluminum ash contains aluminum and a variety of valuable elements, mainly composed of aluminum metal, oxides, chlorides an...

AI Technical Summary

Problems solved by technology

Environmentally friendly concrete pavement bricks in the prior art mainly use gravel or sand or cinder as aggregates, but quarrying or sand mining destroys the ecological environment, and the strength of sidewalk bricks made of cinder is not ideal