CN116604674A - 3D printed reinforced concrete prefabricated laminated slab and production process thereof - Google Patents
3D printed reinforced concrete prefabricated laminated slab and production process thereof Download PDFInfo
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- CN116604674A CN116604674A CN202310479605.2A CN202310479605A CN116604674A CN 116604674 A CN116604674 A CN 116604674A CN 202310479605 A CN202310479605 A CN 202310479605A CN 116604674 A CN116604674 A CN 116604674A
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- 239000011150 reinforced concrete Substances 0.000 title claims abstract description 42
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 239000004567 concrete Substances 0.000 claims abstract description 50
- 238000007639 printing Methods 0.000 claims abstract description 38
- 238000000034 method Methods 0.000 claims abstract description 29
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 13
- 238000010146 3D printing Methods 0.000 claims abstract description 12
- 238000004140 cleaning Methods 0.000 claims abstract description 6
- 230000000284 resting effect Effects 0.000 claims abstract description 5
- 239000010410 layer Substances 0.000 claims description 28
- 230000003014 reinforcing effect Effects 0.000 claims description 19
- 239000011241 protective layer Substances 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 8
- 238000009991 scouring Methods 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 230000003746 surface roughness Effects 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 230000002787 reinforcement Effects 0.000 abstract description 6
- 229910000831 Steel Inorganic materials 0.000 description 30
- 239000010959 steel Substances 0.000 description 30
- 238000007788 roughening Methods 0.000 description 5
- 230000009974 thixotropic effect Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B5/00—Floors; Floor construction with regard to insulation; Connections specially adapted therefor
- E04B5/02—Load-carrying floor structures formed substantially of prefabricated units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/001—Rapid manufacturing of 3D objects by additive depositing, agglomerating or laminating of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B1/00—Producing shaped prefabricated articles from the material
- B28B1/08—Producing shaped prefabricated articles from the material by vibrating or jolting
- B28B1/087—Producing shaped prefabricated articles from the material by vibrating or jolting by means acting on the mould ; Fixation thereof to the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
-
- 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
- B33Y10/00—Processes of additive manufacturing
-
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- 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
-
- 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
- B33Y80/00—Products made by additive manufacturing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
The invention belongs to the field of concrete, and particularly relates to a 3D printed reinforced concrete prefabricated laminated slab and a production process thereof. The production process comprises the following steps: cleaning a die table and positioning the surface of the die table; erecting the reinforcement meshes according to the positioning result, and printing the frame of the laminated slab on the erected reinforcement meshes through a 3D concrete printer; the 3D printing concrete is enabled to fill gaps below the reinforcing steel bars through vibration of the mold table; after the frame is hardened, pouring concrete on the inner side of the frame; sequentially resting, napping, maintaining, demolding and washing-free napping. The production process frame has fewer printing layers, can work on a continuous die table, and cooperatively improves the production efficiency; the redundant gaps can be filled through small-amplitude vibration, so that the structure of the prefabricated laminated slab frame is more compact and firm; and the frame is prevented from sliding in the concrete pouring and vibrating process by fixing the magnetic clamping apparatus, so that the product quality is improved, and the process is correspondingly saved.
Description
Technical Field
The invention belongs to the field of concrete, and particularly relates to a 3D printed reinforced concrete prefabricated laminated slab and a production process thereof.
Background
In recent years, assembled buildings have been developed vigorously in China, wherein the composite floor slab is a horizontal member used in the assembled building. At present, reinforced concrete superimposed sheets are the most widely used superimposed sheets, and reinforced concrete superimposed sheets are usually prefabricated in factories, and the procedures related to frames are more, so that the labor is large, and meanwhile, for reinforced concrete superimposed sheets with special shapes, a steel side die is required to be customized, so that the efficiency is low and the cost is high. In addition, in order to reduce the special-shaped laminated plates, a designer can use a large amount of small-sized laminated plates at the special structure part, so that the production efficiency is further reduced, and the production cost is improved.
The concrete 3D printing technology is a new concrete construction technology developed in recent years, and can be used for manufacturing small houses, concrete members, and the like. But the most difficult problem of concrete 3D printing technique is the reinforcement problem. For example CN 208870180U relates to a 3D printed reinforced concrete member, by 3D printing the concrete member housing, the reinforcement cage is completely inside the member while normal concrete is poured inside, but the reinforcement mesh cannot pass through the printed layer. Another example is CN 115146369A, which relates to a 3D printed prefabricated composite floor construction method, which first prints an outer form to the height of the reinforcing mesh, and then erects the reinforcing mesh. In actual production, there are the following problems: firstly, the heights of the reinforcing mesh in the X and Y directions are not consistent; secondly, the thickness of the reinforcement protection layer of the reinforced concrete laminated slab is 15mm, 4 layers of the laminated slab with the thickness of 60mm are required to be printed, and the production efficiency is low; thirdly, printing discontinuously, erecting a reinforcing steel bar net sheet after the first layer is printed, and then printing the rest three layers, so that the process is complex; fourthly, the production line is suitable for fixed die production, and is not suitable for flow line production.
Therefore, the technical scheme of the invention is provided based on the above.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a 3D printing reinforced concrete prefabricated laminated slab and a production process thereof. According to the production process, the reinforced mesh is erected firstly, then the concrete frame is continuously printed in a 3D mode at one time, the number of printing layers of the frame is small, meanwhile, the operation can be performed on a continuous die table, and the production efficiency is cooperatively improved; on the other hand, in the production process, the extra gaps can be filled by small vibration and thixotropic property of the concrete, so that the structure of the prefabricated laminated slab is more compact and firm.
The scheme of the invention is that a production process of a 3D printed reinforced concrete precast laminated slab is provided, and the production process comprises the following steps:
(1) Cleaning a die table, and positioning the surface of the die table;
(2) Erecting a reinforcing mesh according to the positioning result, and printing the frame of the laminated slab on the erected reinforcing mesh through a 3D concrete printer;
(3) The 3D printed concrete is further filled in gaps below the reinforcing steel bars through small-amplitude vibration of the mold table;
(4) After the frame is hardened, pouring concrete on the inner side of the frame;
(5) And (5) sequentially carrying out resting, napping, curing, demolding and free-scouring to obtain the 3D printing reinforced concrete precast laminated slab.
Preferably, in the step (1), the die table is cleaned, and scribing positioning or projection positioning is performed on the surface of the die table.
Preferably, in the step (2), the reinforcing mesh is erected in a heightening mode according to the positioning result so as to meet the requirement of the thickness of the laminated slab protective layer.
Preferably, in the step (3), after the erection is completed, the frame of the reinforcing mesh is printed with 2-3 layers of 3D reinforced concrete continuously, after the printing is completed, the die table is vibrated slightly, the moving die table is vibrated slightly by a walking or small vibrator, and the fixed die table is vibrated slightly by a small vibrator, so that the reinforced concrete fills the gap.
Preferably, in the step (4), after the frame is hardened, a magnetic attraction fixture is installed on the frame and the reinforcing mesh to prevent the frame from sliding in the concrete pouring and vibrating process.
Preferably, in the step (5), the demolding means that the laminated slab is directly lifted and separated from the low mold.
Preferably, in the step (5), the no-scouring step refers to that the used printing concrete material adopts coarse sand or fine stone aggregate so as to improve the surface roughness of the printing material, and the edge scouring step in the conventional superimposed sheet production is omitted.
The invention further provides the 3D printing reinforced concrete precast laminated slab prepared by the production process.
The beneficial effects of the invention are as follows:
according to the production process disclosed by the invention, the reinforced mesh is erected firstly, then the concrete frame is continuously printed in 3D mode, the number of printing layers of the frame is small, meanwhile, the operation can be performed on a continuous die table, and the production efficiency is cooperatively improved; meanwhile, in the production process, the extra gaps can be filled by small vibration and the thixotropic property of the concrete, so that the structure of the prefabricated laminated slab frame is more compact and firm; before concrete pouring, the magnetic clamping device is used for fixing the printed frame and the reinforcing steel bar net piece, so that the frame is prevented from sliding in the concrete pouring and vibrating process, and the product quality is improved. In addition, compared with the traditional superimposed sheet production process, the method omits the step of scouring, saves water and materials, and reduces the sewage discharge in factories.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a reinforcing mesh sheet according to the present invention.
Fig. 2 is an actual view of the process of 3D printing reinforced concrete according to the present invention.
Fig. 3 is a schematic view of the structure of the 3D printed first layer of reinforced concrete of the present invention.
Fig. 4 is a schematic structural view of the 3D printed second layer reinforced concrete of the present invention.
The reference numerals in the drawings are:
1-transverse reinforcing steel bars; 2-longitudinal steel bars; 3-reinforcing steel bar meshes; 4-concrete; 5-a print head; 6-gaps; 7-thickness of the protective layer; 8-first layer print thickness; 9-second layer print thickness.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
Example 1
The embodiment provides a production process of a 3D printed reinforced concrete prefabricated laminated slab, which comprises the following steps:
(1) Arranging a plurality of transverse steel bars 1 in parallel in sequence, and arranging a plurality of longitudinal steel bars 2 in parallel in sequence at the same time, so that the transverse steel bars 1 and the longitudinal steel bars 2 are kept vertical, thereby manufacturing a steel bar net 3, and taking the steel bar net 3 as a prefabricated laminated slab framework, referring to fig. 1;
(2) Cleaning a die table, and marking and positioning on the surface of the die table;
(3) Erecting the reinforcing mesh 3 by adopting a method of adding cushion blocks according to the positioning result, so that the thickness of the protective layer of the reinforced concrete precast laminated slab can be ensured, and printing the first layer of concrete 4 after the erection is finished (refer to fig. 2); the frame of the first layer of printed concrete 4 is slightly higher than the steel bars, the discharge amount of the concrete 4 is larger, and the concrete 4 is extruded by the printing head 5 to be filled below the steel bars; in addition, due to the thixotropic property of the concrete 4, a gap 6 (refer to fig. 3) is formed below the reinforcing steel bar during natural filling, and small vibration is added to the assembly line mold table during traveling of the mold table to fill the mold table; in addition, the printing concrete adopts sand grains or fine stones with large grain sizes, so that the surface roughness of the printing material can be improved, and a subsequent frame roughening process is avoided;
(4) To the mould platform of pipelining, the reinforcing bar net piece 3 after printing waits for the frame hardening through excessive station, later installs magnetism at the frame outside and inhale location fixture, prevents that concrete placement vibration in-process from appearing sliding, installs truss reinforcing bar and pre-buried pipeline again to pour in proper order, still support, napping, maintenance and drawing of patterns, obtain the prefabricated superimposed sheet of 3D printing reinforced concrete.
It should be emphasized that, in order to compare with the prior art, in this embodiment, the design thickness of the reinforced concrete prefabricated laminated slab is 60mm, the diameter of the reinforced concrete is 8mm, the thickness of the protective layer is 15mm, the two-layer printing is performed, and the thickness of the first layer is 32mm (15 mm+8mm×2+1mm is open, refer to fig. 4); the second layer printing thickness 9 is 29mm (refer to fig. 4), the discharging amount is reduced, the total printing height is 61mm, the die table is vibrated slightly for filling gaps, the frame height is reduced by about 1mm, the total height is reduced to about 60mm, the design expectation is met, truss steel bars are installed while the frame is hardened, and then the subsequent process is carried out. Therefore, when the thickness of the prefabricated plate is 60mm, the scheme of the embodiment is continuous twice printing, and the prior art needs four times printing, so that the efficiency is obviously improved.
Example 2
The embodiment provides a production process of a 3D printed reinforced concrete prefabricated laminated slab, which comprises the following steps:
(1) Arranging a plurality of transverse steel bars 1 in parallel in sequence, and arranging a plurality of longitudinal steel bars 2 in parallel in sequence at the same time, so that the transverse steel bars 1 and the longitudinal steel bars 2 are kept vertical, thereby manufacturing a steel bar net 3, and taking the steel bar net 3 as a prefabricated laminated slab framework, referring to fig. 1;
(2) Cleaning a die table, and performing projection positioning on the surface of the die table;
(3) Erecting the reinforcing mesh 3 by adopting a method of adding filler strips according to the positioning result, so that the thickness of the protective layer of the reinforced concrete precast laminated slab can be ensured, and printing the first layer of concrete 4 after the erection is finished (refer to fig. 2); the frame of the first layer of printed concrete 4 is slightly higher than the steel bars, the discharge amount of the concrete 4 is larger, and the concrete 4 is extruded by the printing head 5 to be filled below the steel bars; in addition, due to the thixotropic property of the concrete 4, a gap 6 (refer to fig. 3) is formed below the reinforcing steel bar during natural filling, and small vibration is applied to the fixed die table by a vibrator to perform filling; in addition, the printing concrete adopts sand grains or fine stones with large grain sizes, so that the surface roughness of the printing material can be improved, and a subsequent frame roughening process is avoided;
(4) For a fixed die table, the printed reinforcing mesh 3 waits for hardening of a frame through an excessive station, then a magnetic attraction positioning fixture is arranged on the outer side of the frame to prevent slippage in the concrete pouring and vibrating process, truss reinforcing steel bars and embedded pipelines are arranged, and pouring, resting, roughening, maintenance and demolding are sequentially carried out to obtain the 3D printed reinforced concrete prefabricated laminated slab.
It should be emphasized that, in order to compare with the prior art, in this embodiment, the design thickness of the reinforced concrete prefabricated laminated slab is 60mm, the diameter of the reinforced steel bar is 8mm, the thickness of the protective layer is 15mm, the two-layer printing is performed, and the thickness of the first layer printing is 33mm (15 mm+8mm×2+2mm is open, refer to fig. 4); the second layer printing thickness 9 is 28mm (refer to fig. 4), the discharging amount is reduced, the total printing height is 61mm, the die table is vibrated slightly for filling gaps, the frame height is reduced by about 1mm, the total height is reduced to about 60mm, the design expectation is met, truss steel bars are installed while the frame is hardened, and then the subsequent process is carried out. Therefore, when the thickness of the prefabricated plate is 60mm, the scheme of the embodiment is continuous twice printing, and the prior art needs four times printing, so that the efficiency is obviously improved.
Example 3
The embodiment provides a production process of a 3D printed reinforced concrete prefabricated laminated slab, which comprises the following steps:
(1) Arranging a plurality of transverse steel bars 1 in parallel in sequence, and arranging a plurality of longitudinal steel bars 2 in parallel in sequence at the same time, so that the transverse steel bars 1 and the longitudinal steel bars 2 are kept vertical, thereby manufacturing a steel bar net 3, and taking the steel bar net 3 as a prefabricated laminated slab framework, referring to fig. 1;
(2) Cleaning a die table, and performing projection positioning on the surface of the die table;
(3) Erecting the reinforcing mesh 3 by adopting a method of adding filler strips according to the positioning result, so that the thickness of the protective layer of the reinforced concrete precast laminated slab can be ensured, and printing the first layer of concrete 4 after the erection is finished (refer to fig. 2); the frame of the first layer of printed concrete 4 is slightly higher than the steel bars, the discharge amount of the concrete 4 is larger, and the concrete 4 is extruded by the printing head 5 to be filled below the steel bars; in addition, due to the thixotropic property of the concrete 4, a gap 6 (refer to fig. 3) is formed below the reinforcing steel bar during natural filling, and small vibration is applied to the fixed die table by a vibrator to perform filling; in addition, the printing concrete adopts sand grains or fine stones with large grain sizes, so that the surface roughness of the printing material can be improved, and a subsequent frame roughening process is avoided;
(4) For a fixed die table, the printed reinforcing mesh 3 waits for hardening of a frame through an excessive station, then a magnetic attraction positioning fixture is arranged on the outer side of the frame to prevent slippage in the concrete pouring and vibrating process, truss reinforcing steel bars and embedded pipelines are arranged, and pouring, resting, roughening, maintenance and demolding are sequentially carried out to obtain the 3D printed reinforced concrete prefabricated laminated slab.
It should be emphasized that, in this embodiment, the design thickness of the reinforced concrete prefabricated laminated slab is 61mm, the diameter of the reinforcing steel bar is 8mm, the thickness of the protective layer is 15mm, the two layers are printed, and the first layer printing thickness is 33mm (15 mm+8mm×2+2mm open volume, refer to fig. 4); the second layer printing thickness 9 is 29mm (refer to fig. 4), the discharging amount is reduced, the total printing height is 62mm, the die table is vibrated slightly for filling gaps, the frame height is reduced by about 1mm, the total height is reduced to about 61mm, the design expectation is met, truss steel bars are installed while the frame is hardened, and then the subsequent process is carried out.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The production process of the 3D printing reinforced concrete precast laminated slab is characterized by comprising the following steps of:
(1) Cleaning a die table, and positioning the surface of the die table;
(2) Erecting a reinforcing mesh according to the positioning result, and printing the frame of the laminated slab on the erected reinforcing mesh through a 3D concrete printer;
(3) The 3D printing concrete is enabled to fill gaps below the reinforcing steel bars through vibration of the mold table;
(4) After the frame is hardened, pouring concrete on the inner side of the frame;
(5) And (5) sequentially carrying out resting, napping, curing, demolding and free-scouring to obtain the 3D printing reinforced concrete precast laminated slab.
2. The process for producing 3D printed reinforced concrete prefabricated laminated slab according to claim 1, wherein in the step (1), a die table is cleaned, and scribing positioning or projection positioning is performed on the surface of the die table.
3. The 3D printed reinforced concrete prefabricated laminated slab production process according to claim 1, wherein in the step (2), the reinforced mesh sheet is erected in a lifting mode according to a positioning result so as to meet the requirement of the thickness of the laminated slab protective layer.
4. The process for producing the 3D printed reinforced concrete prefabricated laminated slab according to claim 1, wherein in the step (2), after the erection is completed, the frame of the reinforced mesh is printed with 2-3 layers of 3D reinforced concrete continuously.
5. The process for producing 3D printed reinforced concrete prefabricated laminated slab according to claim 1, wherein in the step (3), vibration is generated for the moving die table by walking or a small vibrator; vibration is generated to the stationary stage by a small vibrator.
6. The process for producing the 3D printed reinforced concrete prefabricated laminated slab according to claim 1, wherein in the step (4), after the frame is hardened, a magnetic clamp is arranged on the frame and the reinforcing mesh to prevent the frame from sliding in the concrete pouring and vibrating process.
7. The process for producing 3D printed reinforced concrete prefabricated laminated slab according to claim 1, wherein in the step (5), the demolding is performed by directly lifting the laminated slab to separate the laminated slab from the lower mold.
8. The process for producing 3D printed reinforced concrete precast composite panels according to claim 1, wherein in the step (5), the no-scouring process is that the used printed concrete material adopts coarse sand or fine stone aggregate to improve the surface roughness of the printed material, and the edge scouring step in the conventional composite panel production is omitted.
9. The 3D printed reinforced concrete prefabricated laminated slab prepared by the production process according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310479605.2A CN116604674A (en) | 2023-04-28 | 2023-04-28 | 3D printed reinforced concrete prefabricated laminated slab and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310479605.2A CN116604674A (en) | 2023-04-28 | 2023-04-28 | 3D printed reinforced concrete prefabricated laminated slab and production process thereof |
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| Publication Number | Publication Date |
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| CN116604674A true CN116604674A (en) | 2023-08-18 |
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| CN202310479605.2A Pending CN116604674A (en) | 2023-04-28 | 2023-04-28 | 3D printed reinforced concrete prefabricated laminated slab and production process thereof |
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- 2023-04-28 CN CN202310479605.2A patent/CN116604674A/en active Pending
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