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Regenerated powder doped 3D printing engineering spoil printing ink material based on spoil autocompounding technology and preparation method of regenerated powder doped 3D printing engineering spoil printing ink material

A technology of 3D printing and recycled powder, which is applied in the direction of additive processing, solid waste management, climate sustainability, etc., can solve the problem that recycled powder resources cannot be effectively used, so as to improve extrudability and reliability Constructive, improving mechanical properties

Active Publication Date: 2022-08-05
TONGJI UNIV
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  • Description
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Problems solved by technology

[0009] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a 3D printing engineering spoil ink material mixed with recycled powder based on spoil self-compounding technology and its preparation method. Based on the sustainable theory, a large number of waste The problem that soil and recycled powder resources cannot be effectively used makes up for the shortcomings of traditional 3D printing cement-based materials used as 3D printing inks in engineering. Sustainable, environmentally friendly ink materials that can be printed efficiently to realize the reuse of construction solid waste such as engineering spoils and recycled powders, and based on spoil compounding and 3D printing technology to maximize the reuse of solid waste and Advantages of in-situ construction

Method used

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  • Regenerated powder doped 3D printing engineering spoil printing ink material based on spoil autocompounding technology and preparation method of regenerated powder doped 3D printing engineering spoil printing ink material
  • Regenerated powder doped 3D printing engineering spoil printing ink material based on spoil autocompounding technology and preparation method of regenerated powder doped 3D printing engineering spoil printing ink material
  • Regenerated powder doped 3D printing engineering spoil printing ink material based on spoil autocompounding technology and preparation method of regenerated powder doped 3D printing engineering spoil printing ink material

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Embodiment 1

[0073] The engineering spoils from different sources were successively dried at 100°C, crushed, and sieved through a 0.15mm aperture screen. figure 2 The JTG E40-2007 soil classification method shown is used to classify the powder to obtain a high liquid limit clay powder and a low liquid limit silt powder, of which the liquid limit and plasticity index of the high liquid limit clay powder are 58.6% and 33.9, respectively. , the liquid limit and plasticity index of low liquid limit silt powder are 35.4% and 3.4, respectively.

[0074] A component of spoil ink material for 3D printing engineering based on spoil self-compounding technology, which, in parts by weight, includes the following components: 1 part of high liquid limit clay powder, 1 part of low liquid limit silt Powder, 0.01 part of lignosulfonate, 0.03 part of regenerated powder, 0.15 part of regenerated sand, 0.02 part of cellulose, 0.008 part of chopped fiber, and 0.8 part of water.

[0075] Among them, the lignos...

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Abstract

The invention provides a 3D printing engineering spoil ink material doped with regenerated powder based on a spoil autocompounding technology. The invention further provides a preparation method and application of the 3D printing engineering spoil ink material doped with the regenerated powder based on the spoil autocompounding technology and a 3D printing forming method. According to the 3D printing engineering spoil ink material doped with the regenerated powder based on the spoil autocompounding technology and the preparation method, engineering spoil resources of different types are fully utilized for autocompounding, the activity of the regenerated powder and the 3D printing in-situ construction advantages are combined, the problem that a large number of spoil resources cannot be effectively utilized is solved, and the 3D printing engineering spoil ink material is suitable for industrial production. And the method has the advantages of low carbon, environmental protection, rapid construction and the like, is beneficial to the sustainable development requirement and industrial development trend of engineering, provides a certain application foundation for the carbon reduction requirement of the construction industry, and has relatively high economic benefits and social values.

Description

technical field [0001] The invention belongs to the technical field of architectural 3D printing and solid waste recycling, and relates to a waste soil ink material for 3D printing engineering with recycled powder based on the self-compounding technology of spoil soil and a preparation method thereof. Background technique [0002] In recent years, additive manufacturing technology has developed rapidly in the field of construction. The 3D printing moldless construction process, which is formed by layer-by-layer printing, is changing the traditional construction process, and complex structural forms can also be realized during the material deposition process. Using this visualization-based real-time printing technology, the construction industry has realized many construction printing projects around the world in recent years, which also proves the great potential and feasibility of 3D printing in construction. At the same time, how to integrate the concept of sustainable dev...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02B33Y70/10
CPCC04B28/02B33Y70/10C04B2111/00181C04B14/10C04B24/18C04B18/16C04B24/383C04B16/06Y02W30/91
Inventor 肖建庄柏美岩沈剑羽高琦
Owner TONGJI UNIV
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