Excited clay brick micro-powder, preparation method thereof, cementing material and regenerated brick

Abstract

The invention relates to the technical field of construction waste treatment, and particularly discloses excited clay brick micro-powder, a preparation method thereof, a cementing material and a regenerated brick. The excited clay brick micro-powder comprises the following raw materials: construction waste clay brick micro-powder and an alcohol amine exciting agent in a weight ratio of 100: (0.01-0.06), wherein the alcohol amine exciting agent is selected from at least one of diethanolisopropanolamine and triisopropanolamine. The preparation method comprises the steps of crushing the construction waste clay bricks to obtain construction waste clay brick micro-powder; adding an alcohol amine exciting agent into the construction waste clay brick micro-powder, and mixing to obtain excited clay brick micro-powder; and taking the material as a cementing material and a raw material for the regenerated brick. According to the invention, the strength activity of the excited clay brick micro-powder is remarkably improved, and the quality of regenerated brick applying the activated clay brick micro-powder is greatly improved.

Description

Technical field [0001] The present application relates to the technical field of construction waste treatment, and more particularly, it involves exciting clay brick microfour and preparation methods, gelling materials and regenerative bricks. Background technique [0002] According to statistics, the construction of construction garbage will be generated by 500-600 tons per 10,000 square meters, and the 10,000 square meters of old buildings will be removed from 7,000-12 million tons of construction waste. my country's construction waste has been 30% of the total urban garbage. [0003] Among them, the binder bricks account for a large part of the total amount of construction, the clay brick is mainly the volcanic gray material, containing active mineral components, wherein the silica and aluminum oxide content is high, and it can be used as a gelling material instead of cement. , Fly ash, mineral powder and other blending materials, making it into regenerated bricks, thereby reu...

AI Technical Summary

Problems solved by technology

However, due to the unfavorable characteristics of clay bricks such as low compressive strength and high water absorption, the recycling rate of clay bricks is seriously reduced.

[0004] At present, the clay brick powder is mainly excited by means of compound excitation, alkali excitation, sulfate excitation, etc. to increase its strength and activity index, thereby improving the recovery rate of clay bricks; however, in the actual application of bricklaying, compound excitation needs to be added The market for high-calcium finely ground mineral powder is in short supply, and the quality is difficult to control, which is not conducive to mass production; the means of alkali excitation and sulfate excitation, after forming, the bricklaying is seriously anti-alkali, which greatly reduces the strength of bricklaying

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