Solid waste-based thermally-induced coagulation 3D printing material and 3D printing forming method thereof

Abstract

The invention relates to a solid waste-based thermally-induced coagulation 3D printing material and a 3D printing forming method thereof. The preparation method of the 3D printing material comprises the following steps: 1) mixing steel slag, a phase change material and a thermally-induced coagulation accelerator to obtain a material A; 2) mixing water, a polycarboxylic acid super plasticizer and a rheology modifier to obtain a material B; 3) adding the cement clinker, the silica fume, the slag and the ardealite into a stirrer, and uniformly stirring to obtain a solid waste-based cementing material; and 4) sequentially adding the material A and the material B into the solid waste-based cementing material, stirring until uniform slurry is formed, adding the quartz sand fine aggregate and continuously stirring so as to obtain the solid waste-based thermally-induced coagulation 3D printing material after uniform stirring. The solid waste-based thermally-induced coagulation 3D printing material is prepared by taking industrial solid wastes such as the steel slag, the mineral powder and the phosphogypsum as raw materials, the application range of the wastes is expanded, the cost is low, the coagulation time of the printing material is controllable, and the printing product has the excellent characteristics of high early strength, high coagulation rate and the like.

Description

technical field [0001] The invention belongs to the technical field of mortar, concrete or similar building materials, and in particular relates to a solid waste-based heat-induced coagulation-accelerating 3D printing material and a 3D printing forming method thereof. Background technique [0002] 3D printing technology, also known as additive manufacturing technology, is an emerging rapid prototyping manufacturing technology. At present, 3D printing technology has been initially applied in the field of construction. As a new construction method, 3D printing buildings have very obvious advantages. It greatly saves labor costs and time costs, and does not increase too much additional construction consumption when buildings with complex structures need to be built. For consumption As far as those are concerned, they can obtain products that are more in line with their own wishes at a lower cost, so they are extremely market-effective. [0003] Although 3D printing technology...

AI Technical Summary

Problems solved by technology

[0003] Although 3D printing technology has been initially applied in the construction industry, the materials used are still limited, mostly cement-based or gypsum-based materials

However, solid wastes such as phosphogypsum and slag are difficult to apply due to their low active components, long coagulation time, and low strength. They have not been used in 3D printing in the construction industry at present.

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