Method for 3D printing of surface of concrete wall body and application of method

A concrete wall and 3D printing technology, which is applied in the direction of ceramic forming machines, manufacturing tools, additive processing, etc., can solve the problems of poor decoration effect, uneven wall surface, unsightly appearance, etc., achieve short setting time and improve smoothness The effect of high speed and strong expansion

Active Publication Date: 2018-04-13
CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a method for 3D printing the surface of a concrete wall, which is used to improve the problems of uneven wall surface, poor decorative effect, and unsightly appearance.

Method used

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  • Method for 3D printing of surface of concrete wall body and application of method
  • Method for 3D printing of surface of concrete wall body and application of method
  • Method for 3D printing of surface of concrete wall body and application of method

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Effect test

Embodiment 2

[0045] The method of 3D printing the surface of the concrete wall, the specific construction steps are:

[0046] (1) Clean the foundation wall, arrange the bricks to lay down the bottom, set the wall control line, and assemble the bricks;

[0047] (2) Use the 3D printing head to spray pre-mixed concrete to print the wall; 3D printing concrete includes sulphoaluminate cement, red sintered colored sand, water and water reducing agent.

[0048] (3) Complete the printing of the wall surface.

[0049] Step B, spraying high-concentration admixture on the surface of the wall that has just been printed, wherein the admixture is applied using a spray gun, and the retarder is dispersed in the form of mist droplets;

[0050] Step C, after the surface of the printed concrete wall itself reaches the final setting time, use the high-pressure water column 5 sprayed from the spray gun to wash the wall surface sprayed with retarder, so that the uncondensed cement paste on the surface will be ...

Embodiment 3

[0053] The specific construction steps are:

[0054] (1) Clean the foundation wall, set up the integral formwork of the cast-in-place wall, and the concrete cast-in-place wall;

[0055] (2) Use the 3D printing head to spray pre-mixed concrete to print the wall; 3D printing concrete includes ordinary Portland cement, multi-color mixed fine pebbles, water and water reducing agent.

[0056] (3) Complete the printing of the wall surface.

[0057] Step B, spraying high-concentration admixture on the surface of the wall that has just been printed, wherein the admixture is applied using a spray gun, and the retarder is dispersed in the form of mist droplets;

[0058] Step C, after the surface of the printed concrete wall itself reaches the final setting time, use the high-pressure water column 5 sprayed from the spray gun to wash the wall surface sprayed with retarder, so that the uncondensed cement paste on the surface will be lost and exposed. Low story hardened cement color and ...

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Abstract

The invention discloses a method for 3D printing of the surface of a concrete wall body and application of the method. The method for 3D printing of the surface of the concrete wall body comprises thefollowing specific steps that firstly, concrete for 3D printing is prepared; secondly, a printing head extrudes out concrete, layer-by-layer accumulation is started, the wall body is printed, and meanwhile an additive is sprayed to the surface of the printed wall body; thirdly, when the printed concrete wall body reaches the time of condensing and hardening, a high-pressure water gun is used forwashing non-condensed cement paste on the surface of the wall body till the surface of the wall body is washed down; and fourthly, the concrete wall body obtained after surface washing treatment is subjected to membrane coating curing to the specified age, and the treated wall face has the aggregate exposed decoration effect. The method for 3D printing of the surface of the concrete wall body canbe applied to infrastructure construction, urbanization and shantytowns transformation engineering. The surface of the wall body is directly printed, and construction personnel do not need to be arranged to carry out traditional treatment procedures such as putty leveling and coating spraying on a newly-constructed wall body.

Description

technical field [0001] The invention relates to the technical field of concrete 3D printing architecture, in particular to a method for 3D printing the surface of a concrete wall and its application. Background technique [0002] Wall surface treatment is an important construction node in building construction. The current wall surface treatment mostly requires construction personnel to carry out basic treatment, and then perform complex and time-consuming follow-ups such as putty leveling, gap filling, fine sandpaper grinding, and painting. Decorative treatment. [0003] In recent years, 3D printing technology has gradually been developed and applied in various industries, and gradually expanded to the construction field. Architectural 3D printing technology can effectively solve the problems existing in traditional architectural construction, such as many manual operations, large amount of formwork, difficult to realize complex shapes, slow wall surface treatment, many pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B1/00B28B11/24B28B11/22B33Y10/00C04B28/04C04B28/06C04B111/82
Inventor 蔺喜强李景芳张涛尼坤霍亮张楠李国友
Owner CHINA STATE CONSTRUCTION ENGINEERING CORPORATION
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