Levigated coal gasification coarse slag cement base antique material and preparation method and application thereof

Abstract

The invention discloses a levigated coal gasification coarse slag cement base antique material. The antique material comprises levigated coal gasification coarse slag, cement, river sand and water. The invention further discloses a preparation method; the method comprises the steps that the ingredients are mixed at room temperature, and stirred uniformly. Meanwhile, the invention further discloses an application of the levigated coal gasification coarse slag cement base antique material in the restoration of ancient buildings. As the levigated coal gasification coarse slag cement base antique material is green black, namely in a natural antique color, shading treatment or adultering pigments can be omitted when the antique material is used for the restoration of ancient buildings; besides, the antique material is small in density and easy to lay, has good compressive strength and anti-breaking strength, and has high temperature resistance, corrosion resistance, and anti-corrosion performance. Additionally, the levigated coal gasification coarse slag cement base antique material can be formed rapidly under the condition of being unfired, the construction cost can be reduced, the reuse of resources is achieved, secondary pollution of coal cinder can also be effectively avoided, and the antique material accords with green and ecological development strategy.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a ground coal gasification coarse slag cement-based antique material and a preparation method and application thereof. Background technique [0002] China has a long history and splendid culture, and the splendid ancient civilization shows unique artistic charm. Ancient cultural relics condense the profound wisdom and great innovative spirit of the Chinese nation, such as the winding Great Wall, the magnificent Daming Palace, the Forbidden City with profound heritage, and countless ancient buildings entrusting the wisdom of the predecessors, which have become precious treasures of the Chinese nation. material and spiritual wealth. However, with the passage of time, affected by many environmental factors such as weathering, acid rain, freeze-thaw and corrosion, many places of interest engraved with the crystallization of the wisdom of the Chinese nation are disappearin...

AI Technical Summary

Problems solved by technology

[0003] The application of coal gasification technology has greatly promoted the development of the coal chemical industry. Compared with traditional direct combustion, coal gasification technology has significantly reduced environmental pollution problems, but it also produces a large amount of coal gasification residue during the gasification process. The production of synthetic ammonia is estimated to be about 90 million tons of synthetic ammonia for the whole year, and the annual coal gasification unit needs about 1.35 billion tons of coal. If the ash content is 18% and the carbon conversion rate is 94%, then 304 million tons of ash will be produced every year. A new issue has been proposed to realize the near-zero emission of coal gasification technology. If the coal gasification slag is disposed of by landfill, it will take up a lot of land resources and transportation costs. It is also a waste of resources, and its leachate will also damage the soil. , underground water sources cause serious pollution, and are also the main source of atmospheric dust in surrounding areas, which urgently need comprehensive development and utilization

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