Preparation method of 3D printing building material aggregate

Abstract

The invention discloses a preparation method of 3D printing building material aggregate. The preparation method comprises the following steps: S1, introducing a material, an adhesive and an assistantinto a reaction kettle, adding water, and stirring; S2, after stirring is completed, manufacturing the mixture into a moldable block; S3, preparing the blocky raw materials into spherical particles byusing a pill making machine, and then polishing the spherical particles in the pill making machine; S4, drying after polishing, drying to obtain spherical particles; calcining the dried particles fora certain time under a high-temperature condition to obtain a finished product aggregate; the structure is scientific and reasonable, the preparation method of the 3D printing building material aggregate is simple, safe and convenient to use, a new preparation scheme of the 3D printing building material aggregate is provided, a new choice is provided for 3D printing building materials, solid waste is recycled, and large-scale, high-valued and resourceful treatment of the solid waste is achieved.

Description

technical field [0001] The invention relates to the technical field of 3D printing, in particular to a method for preparing aggregates of building materials for 3D printing. Background technique [0002] 3D printing (3DP) is a kind of rapid prototyping technology, also known as additive manufacturing. It is based on digital model files, using powdered metal or plastic and other bondable materials to construct by layer-by-layer printing. Object technology, 3D printing is usually realized by using digital technology material printers. It is often used to manufacture models in mold manufacturing, industrial design and other fields, and is gradually used in the direct manufacturing of some products. There have been printings using this technology. The technology is used in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineering, firea...

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Problems solved by technology

[0004] The invention provides a method for preparing aggregates of 3D printing building materials, which can effectively solve the problem that the related research on 3D printing building materials in the above-mentioned background technology is still immature. What is currently used in my country is construction waste materials, which are crushed and ground before adding Cement, fibers, and adhesives are used after the use. Aggregate with high strength, low density, and particle shape close to spherical shape is the most suitable for 3D printing concrete, but it cannot be popularized.

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