Modified raw soil material for 3D printing and preparation method of modified raw soil material

Abstract

The invention discloses a modified raw soil material for 3D printing and a preparation method of the modified raw soil material. The modified raw soil material for 3D printing comprises polyvinyl butyral, calcium lignosulfonate, a water-reducing agent, a water-proofing agent, an early-strength agent, raw soil, fiber, alum, gypsum, lime, quick-hard Portland cement, aluminate cement, glutinous ricepaste and water. The modified raw soil material for 3D printing, which is disclosed by the invention, is short in setting time, good in cohesion, free of slump and capable of meeting requirements of 3D printing technology, meanwhile, has the advantages of high early strength, late strength, cold resistance, impact resistance, good waterproof performance, and t he like, and is simple in preparationmethod and easy to operate and implement.

Description

technical field

[0001] The invention relates to the field of construction engineering materials, in particular to a modified raw soil material for 3D printing and a preparation method thereof. Background technique

[0002] As a rapid prototyping technology, 3D printing is based on digital model files and uses various printing materials such as metal, plastic, cement, etc. to build objects by layer-by-layer printing. It is known as the "third industrial technology". The core technology of the revolution. Compared with traditional manufacturing techniques, 3D printing does not need to manufacture molds in advance, does not require complicated manufacturing processes, and the final product can be obtained with a very small amount of labor participation. Therefore, it has a series of advantages such as saving labor and raw materials, simple manufacturing process, and good product integration.

[0003] 3D printing materials are an important material condition for the developmen...

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