Silicon carbide waste-doped dry-powder front mortar and preparation method thereof

Abstract

The invention relates to silicon carbide waste-doped dry-powder front mortar and a preparation method thereof. The dry-powder front mortar is prepared from the following components in parts by weight: 100 parts of Portland cement, 5 to 30 parts of silicon carbide waste, 250 to 400 parts of river sand, 1 to 5 parts of redispersible latex powder, 0.05 to 0.50 part of cellulose ether, and 0 to 0.80 part of fiber. Compared with the prior art, the dry-powder front mortar has the advantages that the silicon carbide waste is applied to the dry-powder front mortar, so that problems about the treatment of the silicon carbide waste are solved, the silicon carbide waste is resourcefully utilized, and the waste treatment cost of an enterprise is reduced; the strength of the dry-powder front mortar can be strengthened, the production cost of the dry-powder front mortar can be reduced, and the commercial popularization and application of the dry-powder front mortar are facilitated.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a dry powder plastering mortar mixed with silicon carbide waste and a preparation method thereof. Background technique [0002] my country has become the world's largest producer of photovoltaic products. With the continuous increase of photovoltaic products, the silicon carbide waste generated by enterprises in the production process is also increasing. Silicon carbide waste is produced by high-temperature oxidation and grinding of waste slag produced by recycling silicon wafer cutting waste through industrial recycling technology. At present, enterprises mostly adopt the method of stacking and landfilling silicon carbide waste, which not only increases the production cost of the enterprise, but also pollutes the environment. [0003] Dry-mixed mortar is composed of solid materials such as cementitious materials, mineral admixtures, fine aggregates, and a...

AI Technical Summary

Problems solved by technology

[0004] The waste slag produced after the silicon wafer cutting waste is recycled is directly mixed into the cement. When it is used as a cementitious material, the active silicon in it will react under certain conditions and generate gas, which will cause the internal stress concentration of the mortar, thus This will cause the dry powder plastering mortar to peel off in the later stage, which will seriously affect the performance of the mortar

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