CN112299874A - Light foamed concrete material for building 3D printing, preparation process and application - Google Patents
Light foamed concrete material for building 3D printing, preparation process and application Download PDFInfo
- Publication number
- CN112299874A CN112299874A CN202011182645.3A CN202011182645A CN112299874A CN 112299874 A CN112299874 A CN 112299874A CN 202011182645 A CN202011182645 A CN 202011182645A CN 112299874 A CN112299874 A CN 112299874A
- Authority
- CN
- China
- Prior art keywords
- printing
- percent
- concrete
- concrete material
- foaming
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
- B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
Abstract
The invention provides a light foamed concrete material for building 3D printing, which is quick and convenient to construct, high in integral strength of a wall body and excellent in anti-seismic performance, and comprises the following components in parts by weight: 20 to 35 percent of cement; 18 to 35 percent of mineral admixture; 0.08 to 2.8 percent of fiber; 15 to 40 percent of fine aggregate; 0.2 to 1.0 percent of foaming agent; 0.15 to 2.0 percent of foam stabilizer; 0.05 to 0.15 percent of superplasticizer; 1.5 to 3.5 percent of temperature control shrinkage reducing agent. The concrete material of the invention is tested to have the compressive strength of more than or equal to 15 MPa; the breaking strength is more than or equal to 3 MPa; dry density is less than or equal to 850kg/m3The invention has lighter self weight, greatly reduces the pressure deformation of the upper layer material to the lower layer in the printing process, and leads the printing structure to have more apparent appearanceThe printing ink is uniform and attractive, the number of layers of one-time continuous printing can be further increased, the construction period is shortened, and the intelligent support for rapidly realizing the industrial production of buildings can be realized; the material has better heat insulation performance, so that the lightweight concrete is more energy-saving and environment-friendly when being applied to the field of buildings.
Description
Technical Field
The invention belongs to the technical field of novel building materials, and relates to a light foamed concrete material for building 3D printing, a preparation process and application.
Background
In recent years, 3D printing technology has been rapidly developed in various industries as a rapidly-developed additive manufacturing technology. Relates to automobile manufacturing, aerospace parts, bones, food, shoes, houses, bridges and the like.
3D printing was derived from the 1860 multi-camera solid sculpturing technology and 1892 landscape forming technology. At the end of the 20 th century, a variety of practical 3D printing technologies and 3D printing devices were invented in succession and developed rapidly. $ 227 billion is expected to cost globally by 2022 for 3D printing technology.
In the field of engineering construction, the 3D printing technology has the advantages of full automation, high modeling freedom, less manual template-free property and the like. With the development of global 3D printing technology and the upgrading and upgrading of 3D printing equipment, more and more 3D printing entity engineering is applied. The method is used for building single-layer and multi-layer buildings, pedestrian bridges, personalized sculptures and 3D printing bionic parts. Further developments in 3D printing technology re-engineering depend on improvements in printing accuracy, speed, stability and security. First, 3D printers need to have precise control and reasonable mechanical construction to meet the requirements of size, precision, stability. Secondly, the program can reasonably determine the path of the spray head and the internal filling mode, so that the macroscopic mechanical property of the component can meet the related requirements, and meanwhile, the structure can be optimized and the materials can be fully utilized. Most importantly, the material needs to be suitable for the 3D printing process with a suitable "time window" (there is a suitable period of time during which the material has fluidity and mechanical properties to ensure that the printing process is not clogged, printable, constructable).
At present, mortar or concrete is basically used in common 3D printing production, the apparent density is large, 3D printing structures are heavy and heavy, the transportation and the installation are not easy, the cost is high, and the development requirements of modern novel architectural engineering application cannot be met. The 3D printing engineering application needs to be personalized, requirements on appearance and performance of a non-curved complex-shaped building body are higher, the 3D printing concrete is required to be light, and high heat insulation performance is required on some building facades with heat insulation requirements. The future lightening of 3D printing concrete is an important development direction, so that the development of the lightweight foaming 3D printing concrete material has important theoretical significance and application value.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a light foamed concrete material for building 3D printing and application thereof, and the light foamed concrete material is quick and convenient to construct, high in integral strength of a wall body and excellent in anti-seismic performance.
The invention is realized by adopting the following modes:
a lightweight foamed concrete material for building 3D printing comprises the following components in parts by weight:
20 to 35 percent of cement;
18 to 35 percent of mineral admixture;
0.08 to 2.8 percent of fiber;
15 to 40 percent of fine aggregate;
0.2 to 1.0 percent of foaming agent;
0.15 to 2.0 percent of foam stabilizer;
0.05 to 0.15 percent of superplasticizer;
1.5 to 3.5 percent of temperature control shrinkage reducing agent.
Wherein the temperature control shrinkage reducing agent: the components are (1) natural anhydrous gypsum: 50-75%, alpha-hemihydrate gypsum; (2) calcium oxide: 10 to 20 percent; (3) rubber for a warm wheel: 10 to 20 percent.
Wherein the first and second light sources are, preferably,
the cement is ordinary silicate cement with the strength grade PO 42.5;
the mineral admixture is I-grade fly ash;
the fiber is polypropylene fiber with the length of 6 mm;
the fine aggregate is quartz sand: the fineness is 70-100 meshes;
the foaming agent is a vegetable protein physical foaming agent, and the foaming efficiency is more than or equal to 150%;
the foam stabilizer is industrial-grade zinc stearate;
the superplasticizer is a carboxylic acid high-performance water reducing agent.
In a second aspect of the invention, a preparation method of a lightweight foamed concrete material for building 3D printing is provided, which comprises the following steps:
(1) mixing cement, mineral admixture, fine aggregate, foaming agent, foam stabilizer and temperature control shrinkage reducing agent to obtain a mixture;
(2) and mixing the mixture with a superplasticizer and fibers to obtain the light foamed 3D printing concrete dry material.
Further, the method also comprises the following steps:
and mixing the dry mixed material of the light foaming 3D printing concrete with water to obtain the 3D printing light foaming 3D printing concrete.
The invention also provides another preparation method of the light foamed concrete material, which comprises the following steps:
(1) mixing cement, mineral admixture, fine aggregate, foaming agent, foam stabilizer and fiber temperature control shrinkage reducing agent to obtain a mixed material;
(2) adding water into a water reducing agent and mixing to obtain light foaming 3D printing concrete slurry;
(3) pre-mixing the obtained mixed material in a stirring pot for 120 s; and then adding the obtained mixed slurry into the pre-stirred mixed material at a constant speed within 15s, and stirring for 180s to obtain the 3D printing light foamed concrete.
In a third aspect of the present invention, there is provided a printing setting method using the above lightweight foamed concrete material, including the steps of:
the diameter of the printing nozzle is set to be 20mm,
setting a printing parameter base speed of a printing device to 0.40m3H, horizontal beatingThe printing speed was 12 m/min.
In a fourth aspect of the invention, a concrete article is made from the lightweight foamed concrete material for architectural 3D printing described above, or is printed by the print setting method claimed above.
The concrete material of the invention is tested to have the compressive strength of more than or equal to 15 MPa; the breaking strength is more than or equal to 3 MPa; dry density is less than or equal to 850kg/m3The printing device has lighter self weight, greatly reduces the pressure deformation of an upper layer material to a lower layer in the printing process, enables the printed structure appearance to be more uniform and beautiful, can further promote the number of layers of one-time continuous printing, shortens the construction period, and can support the intellectualization of the rapid industrialized production building; the material has better heat insulation performance, so that the lightweight concrete is more energy-saving and environment-friendly when being applied to the field of buildings.
Drawings
FIG. 1 is a table showing mechanical properties of concrete products printed with concrete materials according to the first embodiment to the third embodiment of the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained by combining the specific embodiments.
Example one
(1) According to parts by weight, 320 parts of ordinary portland cement with the strength grade of 42.5, 280 parts of fly ash with the particle size of 345-390 microns, 400 parts of quartz sand with the particle size of 0.03-0.12 mm, 15 parts of polypropylene fiber with the length of 6mm, 3 parts of vegetable protein foaming agent and 4 parts of zinc stearate; and a temperature control shrinkage reducing agent prepared by mixing 15 parts of anhydrous gypsum with the fineness of 325 meshes, 4 parts of industrial-grade calcium oxide and 6 parts of industrial-grade rubber to obtain a mixed material; mixing 1 part of a polycarboxylate superplasticizer SUNBO PC1021 type and 260 parts of water (the mass ratio of the water reducer to the cellulose ether to the water is 1: 260) according to parts by weight to obtain mixed slurry;
(2) pre-mixing the obtained mixed material in a stirring pot for 120 s; and then adding the obtained mixed slurry into the pre-stirred mixed material at a constant speed within 15s, and stirring for 180s to obtain the 3D printing light foamed concrete.
Example two
The difference between the second embodiment and the first embodiment is that the 3D printing lightweight foaming concrete can be obtained by increasing 280 parts of fly ash with the particle size of 345-390 mu m to 350 parts and the other steps are the same as the first embodiment.
EXAMPLE III
The third embodiment is different from the first embodiment in that 3 parts of the vegetable protein foaming agent is increased to 5 parts, and the other steps are the same as those of the first embodiment, so that the 3D lightweight foaming concrete is obtained.
Example four
The method for setting the printing of the lightweight foamed concrete material is applied to 3D printing of the concrete, the diameter of a printing nozzle is set to be 20mm, and the basic speed of printing parameters of printing equipment is set to be 0.40m3The horizontal printing speed was 12m/min, and then printing was performed.
EXAMPLE five
A concrete product is made of one of the light foamed concrete materials for building 3D printing in the first embodiment to the third embodiment and is printed by the printing setting method in the fourth embodiment.
The mechanical properties of the concrete product printed by the concrete material in the first embodiment to the third embodiment are shown in the attached drawings.
The foregoing illustrates and describes the principles and features and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. The utility model provides a light foaming concrete material for building 3D prints which characterized in that: the material comprises the following components in parts by weight:
20 to 35 percent of cement;
18 to 35 percent of mineral admixture;
0.08 to 2.8 percent of fiber;
15 to 40 percent of fine aggregate;
0.2 to 1.0 percent of foaming agent;
0.15 to 2.0 percent of foam stabilizer;
0.05 to 0.15 percent of superplasticizer;
1.5 to 3.5 percent of temperature control shrinkage reducing agent.
2. The lightweight foamed concrete material for architectural 3D printing according to claim 1, wherein:
the temperature control shrinkage reducing agent: the components are (1) natural anhydrous gypsum: 50-75%, alpha-hemihydrate gypsum; (2) calcium oxide: 10 to 20 percent; (3) rubber for a warm wheel: 10 to 20 percent.
3. The lightweight foamed concrete material for architectural 3D printing according to claim 1, wherein:
the cement is ordinary silicate cement with the strength grade of PO 42.5;
the mineral admixture is I-grade fly ash;
the fiber is polypropylene fiber with the length of 6 mm;
the fine aggregate is quartz sand: the fineness is 70-100 meshes;
the foaming agent is a vegetable protein physical foaming agent, and the foaming efficiency is more than or equal to 150%;
the foam stabilizer is industrial-grade zinc stearate;
the superplasticizer is a carboxylic acid high-performance water reducing agent.
4. A method for preparing a concrete material for preparing the lightweight foamed concrete material for architectural 3D printing according to claim 1, comprising the steps of:
mixing cement, mineral admixture, fine aggregate, foaming agent, foam stabilizer and temperature control shrinkage reducing agent to obtain a mixture;
and mixing the mixture with a superplasticizer and fibers to obtain the light foamed 3D printing concrete dry material.
5. The method for preparing a concrete material according to claim 4, further comprising the steps of:
and mixing the dry mixed material of the light foaming 3D printing concrete with water to obtain the 3D printing light foaming 3D printing concrete.
6. A method for preparing a concrete material for preparing the lightweight foamed concrete material for architectural 3D printing according to claim 1, comprising the steps of:
mixing cement, mineral admixture, fine aggregate, foaming agent, foam stabilizer and fiber temperature control shrinkage reducing agent to obtain a mixed material;
adding water into a water reducing agent and mixing to obtain light foaming 3D printing concrete slurry;
pre-mixing the obtained mixed material in a stirring pot for 120 s; and then adding the obtained mixed slurry into the pre-stirred mixed material at a constant speed within 15s, and stirring for 180s to obtain the 3D printing light foamed concrete.
7. A printing setting method for the lightweight foamed concrete material for building 3D printing according to claim 1, which is characterized by comprising the following steps:
the diameter of the printing nozzle is set to be 20mm,
setting a printing parameter base speed of a printing device to 0.40m3The horizontal printing speed is 12 m/min.
8. A concrete product made of the lightweight foamed concrete material for architectural 3D printing of claims 1-3 or printed by the print setting method of claim 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011182645.3A CN112299874A (en) | 2020-10-29 | 2020-10-29 | Light foamed concrete material for building 3D printing, preparation process and application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011182645.3A CN112299874A (en) | 2020-10-29 | 2020-10-29 | Light foamed concrete material for building 3D printing, preparation process and application |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112299874A true CN112299874A (en) | 2021-02-02 |
Family
ID=74331542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011182645.3A Pending CN112299874A (en) | 2020-10-29 | 2020-10-29 | Light foamed concrete material for building 3D printing, preparation process and application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112299874A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115057720A (en) * | 2022-06-09 | 2022-09-16 | 武汉大学 | 3D printing function gradient ultrahigh-performance fiber foam concrete material and preparation method thereof |
| CN115093177A (en) * | 2022-06-06 | 2022-09-23 | 南京工业大学 | Light heat-insulating concrete material for building 3D printing, preparation method and application |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948668A (en) * | 2016-06-22 | 2016-09-21 | 重庆建工新型建材有限公司 | Light-weight concrete for 3D printing, and preparation method and application thereof |
| CN109956725A (en) * | 2019-04-23 | 2019-07-02 | 中电建水环境治理技术有限公司 | Fiber reinforcement 3D printing high-performance light concrete and its preparation and application |
| CN111807783A (en) * | 2020-07-07 | 2020-10-23 | 厦门嘉戎技术股份有限公司 | Curing agent for curing landfill leachate membrane concentrated solution and evaporation mother liquor |
-
2020
- 2020-10-29 CN CN202011182645.3A patent/CN112299874A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105948668A (en) * | 2016-06-22 | 2016-09-21 | 重庆建工新型建材有限公司 | Light-weight concrete for 3D printing, and preparation method and application thereof |
| CN109956725A (en) * | 2019-04-23 | 2019-07-02 | 中电建水环境治理技术有限公司 | Fiber reinforcement 3D printing high-performance light concrete and its preparation and application |
| CN111807783A (en) * | 2020-07-07 | 2020-10-23 | 厦门嘉戎技术股份有限公司 | Curing agent for curing landfill leachate membrane concentrated solution and evaporation mother liquor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115093177A (en) * | 2022-06-06 | 2022-09-23 | 南京工业大学 | Light heat-insulating concrete material for building 3D printing, preparation method and application |
| CN115057720A (en) * | 2022-06-09 | 2022-09-16 | 武汉大学 | 3D printing function gradient ultrahigh-performance fiber foam concrete material and preparation method thereof |
| CN115057720B (en) * | 2022-06-09 | 2023-08-08 | 武汉大学 | 3D printing functional gradient ultra-high performance fiber foam concrete material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100537966C (en) | Double layer sandwich foamed concrete composite solid wall plate | |
| CN103755274B (en) | A kind of air-entrained concrete building block and preparation method | |
| CN102561532A (en) | Functionally-graded cellular-concrete thermal-insulating material and preparation method thereof | |
| CN111807807A (en) | Non-autoclaved lightweight heat-insulating particle aerated concrete block and preparation method thereof | |
| CN1954983B (en) | Method for preparing bearing steam-pressing aero-concrete using chemical clay-slag | |
| CN108840624B (en) | Fast-curing light plate suitable for assembly type building and preparation method thereof | |
| CN110317017A (en) | A kind of high-strength light foam concrete and preparation method thereof | |
| CN112299874A (en) | Light foamed concrete material for building 3D printing, preparation process and application | |
| CN105272352A (en) | Lightweight wall special-purpose cell concrete, and production method thereof | |
| CN103951358A (en) | Overall residential foamed lightweight wall body manufactured from construction waste and manufacturing method thereof | |
| CN106904918A (en) | Sculpture for city material and its method for making sculpture for city are made using construction waste | |
| CN110054450A (en) | A kind of light foam concrete inner partition plate | |
| CN105297942A (en) | Heat-insulation and decorative integrated wall with composite aerogel and light steel keels and method for manufacturing heat-insulation and decorative integrated wall | |
| CN103723942B (en) | Hardening accelerator, inorganic heat-insulation mortar based on hardening accelerator and methods for preparing and spraying inorganic heat-insulation mortar | |
| CN102503277B (en) | Building material and preparation method thereof | |
| CN101492273A (en) | Method for producing foaming concrete dry powder mortar | |
| CN108585941A (en) | A kind of foam concrete and preparation method thereof | |
| RU2338724C1 (en) | Dry heat-insulating plastered cellular polystyrene construction mixture for coatings, items and structures and method of its preparation | |
| CN102701668B (en) | Novel high-strength inorganic thermal-insulation mortar | |
| CN108863236B (en) | Preparation method of stirring-free ultralight ceramsite concrete cutting board and stirring-free ultralight ceramsite concrete cutting board | |
| CN101244919B (en) | Technique for producing loess foaming light brick | |
| CN102951923A (en) | Production method of foamed concrete dry powder composite mortar | |
| CN113502993B (en) | PET composite heat-preservation and decoration integrated structure and construction method thereof | |
| CN112374825A (en) | 3D printing tough concrete material and preparation method thereof | |
| CN109928654B (en) | Modified leaf fiber light-weight heat-insulation concrete and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210202 |
|
| WD01 | Invention patent application deemed withdrawn after publication |