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3D (Three-dimensional) printing building material and application thereof

A technology for 3D printing and building materials, applied in the direction of additive processing, etc., can solve the problems of unpleasant and toxic gases, poor compressive performance of target buildings, poor fluidity of paste materials, etc.

Inactive Publication Date: 2018-10-16
北京美斯顿科技开发有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the existing 3D printing building materials are mainly polymers, such as ABS, PP, PE, nylon, HIPS, PC, PLA and other materials. Wasted 3D printing building materials or products will cause a huge burden on the ecological environment
In addition, when these organic materials are applied to building materials, they need to be printed in a high-temperature molten state, and then deposited and solidified layer by layer. During this process, these organic materials are prone to chemical reactions such as oxidative decomposition, releasing unpleasant toxic gases , causing harm to the environment and human body
[0003] At present, the practical application of 3D printing building materials to the construction field is mainly focused on the research of 3D building printing using cement mortar as raw material, mixing with fibers and organic binders, and making toothpaste-like "ink" for 3D building printing. The paste material has poor fluidity, which greatly affects the printing effect, and the printed target building has poor compressive performance

Method used

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  • 3D (Three-dimensional) printing building material and application thereof
  • 3D (Three-dimensional) printing building material and application thereof
  • 3D (Three-dimensional) printing building material and application thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0033] The present invention has no special limitation on the preparation method of the 3D printing building material, and the 3D printing can be obtained by mixing hydraulic gelling materials, admixtures, aggregates, water reducing agents, volume stabilizers, reinforcing materials and water. building materials. In the present invention, the mixing is preferably carried out at room temperature; in the present invention, there is no special limitation on the mixing time, as long as the mixing can be achieved uniformly. In the present invention, the mixing is preferably carried out under the condition of stirring; in the present invention, there is no special limitation on the stirring rate, as long as the components can be fully mixed.

[0034] In the present invention, the mixing is preferably to mix the hydraulic gelling material, admixture, aggregate, water reducing agent, volume stabilizer and reinforcing material uniformly, and then add water for mixing; in the present inv...

Embodiment 1

[0042] Ordinary Portland cement 42.5 of 15 parts by weight, Belit cement of 15 parts by weight, mineral powder of 15 parts by weight, fly ash of 5 parts by weight, iron tailings of 40 parts by weight, sand of 10 parts by weight, 0.2 parts by weight of polycarboxylate superplasticizer, 0.01 parts by weight of carboxymethyl cellulose ether, and 0.2 parts by weight of basalt fiber are mixed until evenly stirred; add 0.12 parts by weight of water and stir for 20 minutes to obtain a 3D printing building material ;

[0043] The obtained 3D printed building materials are 3D printed, and then covered with tarpaulins for maintenance to prevent surface moisture from evaporating, and the target building is obtained.

[0044] After the obtained 3D printed building materials are cured and molded, standard samples are taken according to the GB / T 50081-2002 standard for testing the mechanical properties of ordinary concrete, and the compressive test is carried out. The compressive strength o...

Embodiment 2

[0046] 20 parts by weight of ordinary Portland cement 42.5, 10 parts by weight of Belite cement, 10 parts by weight of mineral powder, 45 parts by weight of iron tailings, 5 parts by weight of copper tailings, 0.4 parts by weight of polycarboxylate Acid high-efficiency water reducer, 0.01 parts by weight of hydroxymethyl cellulose ether, and 0.2 parts by weight of basalt fiber are mixed until uniformly stirred; add 0.14 parts by weight of water and stir for 30 minutes to obtain a 3D printing building material;

[0047] The obtained 3D printed building materials are 3D printed, and then covered and maintained with tarpaulins under natural conditions to obtain the target building.

[0048] After the obtained 3D printed building materials are cured and molded, standard samples are taken according to the GB / T 50081-2002 standard for testing the mechanical properties of ordinary concrete, and the compressive test is carried out. The compressive strength of the 28-day test is 60MPa.

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Abstract

The invention provides a 3D (Three-dimensional) printing building material. The 3D printing building material is prepared from the following components in parts by weight: 20 to 30 parts by weight ofhydraulic cementing material, 10 to 20 parts by weight of admixture, 50 to 60 parts by weight of aggregate, 0.1 to 0.5 part by weight of water reducing agent, 0.01 to 0.05 part by weight of volume stabilizer, 0.2 to 0.5 part by weight of reinforcing material and 0.12 to 0.18 part by weight of water. The 3D printing building material provided by the invention is suitable for printing low-rise buildings with 1 to 3 layers; according to the record of the embodiment, the 28-day test compressive strength of the cured and molded 3D printing building material provided by the invention, can reach 60MPa or above.

Description

technical field [0001] The invention relates to the technical field of architectural 3D printing, in particular to a 3D printing building material and its application. Background technique [0002] Most of the existing 3D printing building materials are mainly polymers, such as ABS, PP, PE, nylon, HIPS, PC, PLA and other materials. Wasted 3D printing building materials or products will cause a huge burden on the ecological environment. In addition, when these organic materials are applied to building materials, they need to be printed in a high-temperature molten state, and then deposited and solidified layer by layer. During this process, these organic materials are prone to chemical reactions such as oxidative decomposition, releasing unpleasant toxic gases , causing harm to the environment and human body. [0003] At present, the practical application of 3D printing building materials to the construction field is mainly focused on the research of 3D building printing usi...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B28/02B33Y70/00
CPCB33Y70/00C04B28/025C04B28/04C04B2201/50C04B7/3453C04B18/141C04B18/08C04B18/12C04B14/06C04B24/24C04B24/383C04B14/4643C04B22/002
Inventor 王新元张永虹王新珂刘伟达李坤王汝南
Owner 北京美斯顿科技开发有限公司
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