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Colored 3D printing mortar and preparation method thereof

A 3D printing and mortar technology, used in the field of building materials, can solve the problems of dull color and surface efflorescence, and achieve the effects of good thixotropy, improved early strength and stable performance.

Inactive Publication Date: 2021-04-30
成都建工赛利混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to improve the setting time and thixotropy of colored 3D printing mortar, improve the extrusion performance of mortar printing, solve the problem of dull color and surface efflorescence of colored mortar, and improve the weather resistance of colored mortar, this application provides a color 3D printing mortar and its preparation method

Method used

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  • Colored 3D printing mortar and preparation method thereof
  • Colored 3D printing mortar and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0046] A colored 3D printing mortar, comprising the following components in parts by weight: 60 parts of white Portland cement, 29 parts of limestone powder, 3 parts of metakaolin, 6 parts of azo pigment permanent red, 2 parts of fly ash floating beads Parts, 90 parts of quartz sand, 0.8 parts of polypropylene fiber, 1.1 parts of shrinkage-reducing polycarboxylate superplasticizer, 3.2 parts of alkali-free accelerator, 1.9 parts of nano calcium silicate hydrate gel, 0.006 parts of alkyne diol defoamer 0.5 parts of water-soluble acrylic emulsion, 25 parts of water; the whiteness of white Portland cement is higher than 90, and the strength grade is 52.5Mpa; the whiteness of limestone powder is higher than 78, and the particle size is 800 mesh; continuously graded quartz sand Particle size 20-140 mesh, metakaolin particle size 800 mesh;

[0047] The preparation method of color 3D printing mortar comprises the following steps:

[0048] S1, mix and stir the quartz sand and fiber a...

Embodiment 2

[0054] A colored 3D printing mortar, comprising the following components in parts by weight: 60 parts of white Portland cement, 28 parts of limestone powder, 4 parts of metakaolin, 5 parts of azo pigment permanent red, 3 parts of fly ash floating beads Parts, 95 parts of quartz sand, 0.9 parts of polypropylene fiber, 1.0 parts of shrinkage-reducing polycarboxylate superplasticizer, 3.5 parts of alkali-free accelerator, 2.2 parts of nano calcium silicate hydrate gel, 0.007 parts of alkyne diol defoamer parts, 0.7 parts of water-soluble acrylic emulsion, and 25.5 parts of water.

Embodiment 3

[0056] A colored 3D printing mortar, comprising the following components in parts by weight: 60 parts of white Portland cement, 27 parts of limestone powder, 5 parts of metakaolin, 4 parts of azo pigment permanent red, and 4 parts of fly ash floating beads 100 parts of quartz sand, 1.0 parts of polypropylene fiber, 0.9 parts of shrinkage-reducing polycarboxylate superplasticizer, 3.9 parts of alkali-free accelerator, 2.6 parts of nano calcium silicate hydrate gel, 0.008 parts of alkyne diol defoamer parts, 0.9 parts of water-soluble acrylic emulsion, and 26 parts of water.

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Abstract

The invention relates to the field of 3D printing mortar, and particularly discloses colored 3D printing mortar and a preparation method thereof, the colored 3D printing mortar comprises the following components: white Portland cement, limestone powder, metakaolin, an organic pigment, an internal curing agent, quartz sand, fibers, a water reducing agent, an alkali-free accelerator, an early strength agent, a defoaming agent, a polymer emulsion and water; the preparation method comprises the following steps: S1, uniformly mixing quartz sand and fibers to obtain M1; S2, uniformly mixing cement, limestone powder, metakaolin, an internal curing agent and M1 to obtain M2; S3, uniformly mixing a water reducing agent, an early strength agent, a defoaming agent and water to obtain M3; S4, uniformly stirring the polymer emulsion and the organic pigment to obtain M4; and S5, uniformly mixing and stirring M3 and M2, adding M4 while stirring, finally adding an accelerator, and uniformly mixing. The prepared mortar is proper in flowability, good in thixotropy and excellent in extrusion performance; and after printing is completed, early strength and later strength are well developed, and the product is bright in color and good in weather resistance.

Description

technical field [0001] This application relates to the field of building materials, more specifically, it relates to a colored 3D printing mortar and a preparation method thereof. Background technique [0002] At present, 3D printing technology is a new type of rapid prototyping technology, which is quite different from traditional manufacturing technology. Based on digital model files, computer control means are used to extrude materials through printer nozzles, and print superimposed materials layer by layer to generate 3D entities. shape. 3D printing technology does not require molds, and can also print curves that cannot be obtained by traditional processes, which greatly facilitates the production of personalized products. It can also directly print the whole for components with complex shapes. Compared with traditional processes, it can reduce labor and save raw materials. Based on the characteristics of 3D printing technology, its application in cement-based material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04B33Y70/10C04B14/04C04B14/22C04B18/08C04B22/02C04B24/12
CPCC04B28/04B33Y70/10C04B22/02C04B24/129C04B24/128C04B14/047C04B14/22C04B18/082C04B2111/00181C04B2201/50C04B2111/00008C04B14/28C04B14/106C04B2103/54C04B14/06C04B16/0633C04B2103/302C04B2103/12C04B2103/50C04B24/2641Y02W30/91
Inventor 肖世玉和德亮吴涛罗小东吴伟杨军陶俊杨贵淞
Owner 成都建工赛利混凝土有限公司
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