Retarded cementing agent used for 3D printing house slurry

Abstract

The invention belongs to the technical field of building materials, and concretely relates to a retarded cementing agent used for 3D printing house slurry, and a use method of the retarded cementing agent. The retarded cementing agent used for 3D printing house slurry comprises, by weight, 20-40 parts of white granulated sugar, 15-35 parts of molasses, 10-25 parts of aluminum hydroxide, 5-15 parts of phosphoric acid and 10-30 parts of sodium nitrite. The retarded cementing agent used for 3D printing house slurry can prolong the initial setting time of a gelling material by 10-150 min and prolongs the final setting time by 20-200 min; the retarded cementing agent used for 3D printing house slurry can reduce the internal temperature rising of a gelling material product, and also can delay the appearance of a temperature peak in order to reduce the temperature stress of the product and improve the crack resistance; and the retarded cementing agent used for 3D printing house slurry has a water reducing rate of 10-20%, can save 10-20% of the gelling material, and greatly reduces the production cost.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a gel retarding agent for 3D printing house slurry and a method for using the same. Background technique [0002] 3D printing (3DP) is a kind of rapid prototyping technology. It is a technology based on digital model files and using bondable materials such as powdered metal or plastic to construct objects by layer-by-layer printing. [0003] 3D printing is usually achieved using digital technology material printers. It is often used to make models in the fields of mold manufacturing and industrial design, and is gradually used in the direct manufacture of some products. There are already parts printed using this technology. The technology has applications in jewelry, footwear, industrial design, architecture, engineering and construction (AEC), automotive, aerospace, dental and medical industries, education, geographic information systems, civil engineerin...

AI Technical Summary

Problems solved by technology

Not to mention that the use of glass fiber is prohibited by some countries due to its environmental protection issues. The accuracy, efficiency and cost of this technology must be strictly calculated. Therefore, the current domestic 3D printing construction market is still in the model stage, and it is difficult to officially put it into production.

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