Sulfate aluminate cement based 3D printing material and preparation method thereof

A sulfoaluminate cement and 3D printing technology, applied in the field of green building materials, can solve the problems that cement-based 3D printing materials cannot meet the requirements of architectural 3D printing, and achieve the effect of green and sustainable development

Inactive Publication Date: 2019-08-20
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems that the above-mentioned existing cement-based 3D printing materials cannot meet the requirements of architectural 3D printing, the present invention aims to provide a sulphoaluminate cement-based 3D printing material and its preparation method, so that the 3D printing material of the present invention has excellent Excellent rheological properties and self-coagulation properties, and at the same time can match 3D printing technology and its process, and as a wall material, it still has excellent mechanical properties while reducing weight

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0092] Select about 49% (48.819%) of the solid waste source sulphoaluminate cement and 50% of the standard sand into a mixer and mix well, and dissolve 0.03% of retarder, 1% of latex powder, 0.001% of Add the mixed solution of defoamer and 34% water into the mixer to make the solid raw material change from a dispersed state to a viscous slurry state. The length of 0.05% is 6mm, the length of 0.05% is 9mm, and the length of 0.05% is 18mm. Add polypropylene fibers into the slurry and continue to stir evenly. The fluidity of the 3D printing material slurry prepared by the ingredients is measured to be 189mm, and the setting time is 45min. It is transported to the 3D printing system, and the concrete is printed layer by layer until it is completed. The construction process of green building components, and finally a new green building with 3D printing. The 1-day, 3-day, and 28-day compressive strengths of building components prepared from this 3D printing material can reach 40.2MP...

Embodiment 2

[0094] Select about 49% (48.809%) of solid waste source sulphoaluminate cement and 50% of standard sand and put them into a mixer and mix well, and dissolve 0.04% of retarder, 1% of latex powder, 0.001% of Add the mixed solution of defoamer and 34% water into the mixer to make the solid raw material change from a dispersed state to a viscous slurry state. The length of 0.05% is 6mm, the length of 0.05% is 9mm, and the length of 0.05% is 18mm. Add polypropylene fibers into the slurry and continue to stir evenly. The fluidity of the 3D printing material slurry prepared by the ingredients is measured to be 215mm, and the setting time is 70min. It is transported to the 3D printing system, and the concrete is printed layer by layer until it is completed. The construction process of green building components, and finally a new green building with 3D printing. 41.1MPa, 50.4MPa, 72.6MPa; 1-day, 3-day, 28-day flexural strength can reach 9.1MPa, 9.8MPa, 11.2MPa respectively.

Embodiment 3

[0096] Select about 49% (48.699%) of solid waste source sulphoaluminate cement and 50% of standard sand into a mixer and mix well, dissolve 0.1% of water reducing agent, 1% of latex powder, 0.001% of The mixed solution of defoamer, 0.05% cellulose ether and 32% water is added into the mixer, so that the solid raw material changes from a dispersed state to a viscous slurry state, and the length of 0.05% is 6mm, the length of 0.05% is 9mm, Add 0.05% polypropylene fibers with a length of 18mm into the slurry and continue to stir evenly. The measured fluidity of the 3D printing material slurry prepared by this ingredient is 213mm, and the coagulation time is 50min. It is transported to the 3D printing system and gradually Concrete printing is carried out layer by layer until the construction process of green building components is completed, and finally a new type of 3D printed green building is obtained. The 1-day, 3-day, and 28-day compressive strengths of building components pr...

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Abstract

The invention discloses a sulfate aluminate cement based 3D printing material and a preparation method thereof. The 3D printing material comprises following raw materials in percentage by weight: 45 to 50% of sulfate aluminate cement; 45 to 50% of fine aggregate; 0 to 1% of a water reducer; 0 to 0.08% of a retarder; 0 to 0.2% of cellulose ether; 0.5 to 2% of redispersible latex powder; 0.001 to 0.002% of an antifoaming agent; and 0.1% to 0.3% of fibers; wherein the total percentage by weight of all raw materials is not greater than 100%. The provided 3D printing material has an excellent rheological property and self-curing performance; is matched with a 3D printing technology at the same time, has excellent mechanical properties on the premise that the weight of the 3D printing material is reduced, when being taken as a wall material, and can be used to construct composite structures of buildings.

Description

technical field [0001] The invention relates to green building materials, in particular to a sulphoaluminate cement-based 3D printing material and a preparation method thereof. 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 is known as the technical representative of the "third industrial revolution", and is now being applied to many fields such as high-end manufacturing, industrial design, aerospace, medical care, art design, architecture, and education. Compared with traditional manufacturing technology, 3D printing technology relies on 3D data model, and through computer control, materials are superimposed layer by layer to construct three-dimensional stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06
CPCC04B28/06C04B2111/00181C04B2201/50C04B14/06C04B2103/22C04B24/2623C04B2103/50C04B16/0633C04B2103/302C04B24/383
Inventor 毛岩鹏吴含王文龙
Owner SHANDONG UNIV
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