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Industrial solid waste geopolymer material for building 3D printing and preparation method thereof

A technology of industrial solid waste and 3D printing, which is applied in the field of construction 3D printing materials, can solve problems such as the inability to freely control the setting time

Pending Publication Date: 2021-08-20
深圳市明远建筑科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an industrial solid waste geopolymer material for building 3D printing and its preparation method, aiming to solve the problem that the existing gelling materials for 3D printing cannot freely control the setting time

Method used

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  • Industrial solid waste geopolymer material for building 3D printing and preparation method thereof
  • Industrial solid waste geopolymer material for building 3D printing and preparation method thereof

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preparation example Construction

[0037] In some embodiments, there is also provided a method for preparing industrial solid waste geopolymer materials for building 3D printing as described above, such as figure 1 As shown, it includes the steps:

[0038] S10. Pour the flake sodium hydroxide into the sodium metasilicate solution, and stir evenly to prepare the alkali activator;

[0039] S20. Measure 30-40 parts of water in proportion, add water reducing agent, thickening water retaining agent and defoamer in sequence, stir evenly with a magnetic stirrer, and then add the alkali activator to obtain a mixed solution;

[0040] S30, sequentially add slag, steel slag, silica fume, fly ash, thixotropic agent and fiber into the slurry mixer, fully stir evenly, and obtain industrial solid waste geopolymer cementitious material;

[0041] S40, adding the mixed solution into the industrial solid waste geopolymer gelling material and stirring evenly to prepare an industrial solid waste geopolymer material for building 3D...

Embodiment 1

[0045] Prepare the following substances in parts by weight:

[0046]

[0047] Preparation method: Weigh the raw materials according to the formula, slowly pour 0.6 parts of flaky sodium hydroxide into 5.4 parts of sodium metasilicate solution, and keep stirring to dissolve the flaky sodium hydroxide. The stimulator is on standby.

[0048] Sequentially add weighed slag, steel slag, silica fume, fly ash, thixotropic agent and fiber into the slurry mixer, and fully stir evenly to obtain powdery industrial solid waste geopolymer cementitious material.

[0049] Take 33 parts of water, add water reducing agent, thickening water retaining agent and defoamer in sequence, stir evenly with a magnetic stirrer, and then add the compounded alkali activator to obtain a mixed solution.

[0050] Slowly add the stirred mixed solution into the powdery industrial solid waste geopolymer gelling material and stir evenly for 3 minutes to prepare printing paste.

[0051] Use computer drawing so...

Embodiment 2

[0056] Prepare the following materials in parts by weight:

[0057]

[0058] Preparation method: Weigh the raw materials according to the formula, slowly pour 1.3 parts of flake sodium hydroxide into 5.2 parts of sodium metasilicate solution, and keep stirring to dissolve the flake sodium hydroxide. The stimulator is on standby.

[0059] Sequentially add weighed slag, steel slag, silica fume, fly ash, thixotropic agent and fiber into the slurry mixer, and fully stir evenly to obtain powdery industrial solid waste geopolymer cementitious material.

[0060] Take 34 parts of water, add water reducing agent, thickening water retaining agent and defoamer in sequence, stir evenly with a magnetic stirrer, and then add the compounded alkali activator to obtain a mixed solution.

[0061] Slowly add the stirred mixed solution into the powdery industrial solid waste geopolymer gelling material and stir evenly for 3 minutes to prepare printing paste.

[0062] Use computer drawing sof...

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Abstract

The invention provides an industrial solid waste geopolymer material for building 3D printing and a preparation method thereof, and the industrial solid waste geopolymer material for building 3D printing comprises the following components in parts by weight: 0.1-50 parts of slag, 0.1-40 parts of steel slag, 0.1-30 parts of silica fume, 0.1-30 parts of fly ash, 0.1-10 parts of an alkali activator, 0.1-2.0 parts of a water reducer, 0.1-2.5 parts of a thixotropic agent, 0.1-1.0 part of a thickening water-retaining agent, 0.01-0.2 part of a defoaming agent, and 0.1-2.0 parts of fibers. The industrial solid waste geopolymer material for building 3D printing provided by the invention has the advantages of controllable setting time and better flowability, and can obtain early strength in the printing process to ensure continuous printing; water leakage is prevented, and the interlayer bonding strength is high; and the printing precision is good, and high-precision building components can be printed.

Description

technical field [0001] The invention relates to the technical field of materials for building 3D printing, in particular to an industrial solid waste geopolymer material for building 3D printing and a preparation method thereof. Background technique [0002] 3D printing is a technology of manufacturing three-dimensional products by adding materials layer by layer through 3D printing equipment based on the designed 3D model. This layer-by-layer accumulation molding technology is also called additive manufacturing. [0003] 3D printing materials are an important material basis for the development of 3D printing technology. To some extent, the development of materials determines whether 3D printing can be used more widely. Geopolymer (geopolymer) is a gelling material formed by alkali-activated aluminum-silicon materials. Compared with ordinary silicate gelling materials, it has better mechanical properties, high early strength, wide source of raw materials, and advanced techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00B33Y70/10C04B18/08C04B18/14
CPCC04B28/006B33Y70/10C04B18/141C04B18/142C04B18/146C04B18/08C04B2111/00181C04B2201/50C04B22/062C04B12/04C04B2103/302C04B14/10C04B14/104C04B14/042C04B24/383C04B24/2652C04B2103/50C04B14/386C04B16/0641C04B16/0633Y02W30/91Y02P40/10
Inventor 丁华明黄明洋聂稷珍曹斌
Owner 深圳市明远建筑科技有限公司
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