A solid waste-based lightweight thermal insulation concrete 3D printing material and its preparation method

A technology of thermal insulation concrete and 3D printing, which is applied in the direction of additive processing, etc., can solve the problems of poor deformation resistance, large specific gravity, and lack of thermal insulation function, etc., and achieve high deformation resistance, reduce weight, and increase thermal insulation performance.

Active Publication Date: 2022-04-29
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, most of the 3D printing materials for concrete buildings are high-strength load-bearing materials, which have a large proportion and do not have the function of heat preservation. There are no reports on lightweight thermal insulation concrete 3D printing materials
The thermal insulation foam concrete material is a light-weight thermal insulation material, but according to the research of the inventor, the current thermal insulation foam concrete material has too high fluidity and poor deformation resistance, so it does not have the buildability required by the 3D printing process

Method used

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  • A solid waste-based lightweight thermal insulation concrete 3D printing material and its preparation method
  • A solid waste-based lightweight thermal insulation concrete 3D printing material and its preparation method
  • A solid waste-based lightweight thermal insulation concrete 3D printing material and its preparation method

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preparation example Construction

[0033] Another embodiment of the present invention provides a method for preparing the above-mentioned solid waste-based lightweight thermal insulation concrete 3D printing material, including the following steps:

[0034] Mix cement, water reducer, retarder, plasticizer, fiber, latex powder evenly, add a part of water and stir to form a slurry;

[0035] Foaming the protein foaming agent with another part of water to obtain foam;

[0036] Mix the slurry and foam until the foam completely enters the slurry, then add polystyrene particles and mix evenly to obtain solid waste-based lightweight thermal insulation concrete 3D printing materials.

[0037] In some examples of this embodiment, the slurry is added in at least 2 additions and mixed repeatedly with the foam.

[0038] The third aspect of the present invention provides a 3D printing component, which is obtained by performing architectural 3D printing on the above-mentioned solid waste-based lightweight thermal insulation ...

Embodiment 1

[0051] The raw material composition of the solid waste-based lightweight thermal insulation concrete 3D printing material is as follows: based on the percentage of cement mass: polycarboxylate superplasticizer 0.1%, protein foaming agent 0.3%, hydroxypropyl methylcellulose ether 0.05%, 1% of polypropylene fiber (4-9mm in length), 1% of latex powder, 24% of water; based on the percentage of cement volume: 30% of polystyrene particles (0.5-1.5mm in diameter).

[0052] The preparation method steps are as follows:

[0053] (1) Mix cement, water reducer, hydroxypropyl methyl cellulose ether, polypropylene fiber and latex powder evenly to form a powder, add suitable water and stir to form a slurry for later use;

[0054] (2) Dilute the protein foaming agent with water in a ratio of 1:60, then mechanically foam to produce foam for later use;

[0055] (3) Put the foam described in (2) into the mixer according to the required amount. After the mixer is started, add the slurry describe...

Embodiment 2

[0058] The raw material composition of solid waste-based lightweight thermal insulation concrete 3D printing materials is as follows: in terms of the percentage of cement mass: polycarboxylate superplasticizer 0.1%, protein foaming agent 0.03%, hydroxypropyl methylcellulose ether 0.1%, 0.5% of polypropylene fiber (4-9mm in length), 1% of latex powder, and 23% of water; based on the percentage of cement volume: 60% of polystyrene particles (0.5-1.5mm in diameter).

[0059] The preparation method steps are as follows:

[0060] (1) Mix cement, water reducer, hydroxypropyl methyl cellulose ether, polypropylene fiber and latex powder evenly to form a powder, add suitable water and stir to form a slurry for later use;

[0061] (2) Dilute the protein foaming agent with water in a ratio of 1:60, then mechanically foam to produce foam for later use;

[0062] (3) Put the foam described in (2) into the mixer according to the required amount. After the mixer is started, add the slurry de...

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Abstract

The invention discloses a solid waste-based lightweight thermal insulation concrete 3D printing material and a preparation method. The raw materials include cement, water reducing agent, retarder, plasticizer, fiber, latex powder, polystyrene particles, and protein foaming agent. and water, the water reducing agent is 0.05-0.1% of the cement mass, the retarder is 0-0.15% of the cement mass, the protein foaming agent is 0.03%-0.12% of the cement mass, and the plasticizer is 0.05-0.05% of the cement mass 0.15%, the fiber is 0-1% of the cement mass, the latex powder is 0.5-2% of the cement mass, a part of the water is 23-25% of the cement mass fraction, and the other part of the water forms foam with the protein foaming agent, polystyrene The particle is 20-60% of the cement volume; the cement is solid waste-based sulphoaluminate cement. The material provided by the invention has suitable fluidity and high deformation resistance, and has the characteristics of light weight and heat preservation, so that it can be used for 3D printing.

Description

technical field [0001] The invention belongs to concrete building 3D printing materials, and relates to a solid waste-based lightweight thermal insulation concrete 3D printing material and a preparation method. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] 3D printing concrete technology is a new application technology that combines 3D printing technology with technology in the field of ready-made concrete. Its main principle is to use a computer to carry out 3D modeling and segmentation of concrete components to produce 3D information, and then mix the prepared concrete The compound passes through the extrusion device, according to the set program, through the mechanic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/06B33Y70/10C04B24/14C04B16/08B33Y80/00C04B111/40
CPCC04B28/06B33Y70/10B33Y80/00C04B24/14C04B16/08C04B2111/40C04B2111/00181C04B2201/50C04B2201/20C04B2201/32C04B2103/302C04B2103/22C04B24/383C04B16/0633C04B2103/0057
Inventor 毛岩鹏黄彦敏王文龙王旭江李敬伟张嘉政
Owner SHANDONG UNIV
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