CN112227598A - Prefabricated slab with built-in cavity and manufacturing method - Google Patents
Prefabricated slab with built-in cavity and manufacturing method Download PDFInfo
- Publication number
- CN112227598A CN112227598A CN202010857500.2A CN202010857500A CN112227598A CN 112227598 A CN112227598 A CN 112227598A CN 202010857500 A CN202010857500 A CN 202010857500A CN 112227598 A CN112227598 A CN 112227598A
- Authority
- CN
- China
- Prior art keywords
- cavity
- pipeline
- prefabricated
- built
- slab
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
- E04C2/52—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits
- E04C2/521—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits serving for locating conduits; for ventilating, heating or cooling
-
- 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
- B28B23/0025—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects with installation or service material, e.g. tubes for electricity or water
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/30—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the shape or structure
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
Abstract
The invention discloses a precast slab with a built-in cavity and a manufacturing method thereof, wherein the cavity comprises a pipeline arranged in the precast slab in the process of molding and checking the precast slab, the pipeline is a hollow pipe body and/or a hollow shell which are embedded in the precast slab, or the pipeline is a flexible pipe body filled with fluid, or the pipeline is a solid cylinder made of hot-melt material, and the pipeline is provided with extending ends at the edge or the surface of the precast slab. The manufacturing method comprises the steps of firstly paving a concrete sandstone slurry base layer in a mold through a prefabricated plate manufacturing mold, then placing a steel reinforcement framework on the base layer, then filling the steel reinforcement framework with concrete sandstone slurry, then placing a pipeline and/or a cavity in the concrete sandstone slurry, filling the pipeline and/or the cavity with the concrete sandstone slurry to form an upper concrete sandstone slurry layer, and finally discharging or taking out fillers in the pipeline after curing and drying. The prefabricated panels allow flexible arrangement of the pipelines and the formation of cavities within the prefabricated panels without the use of pre-buried pipes.
Description
Technical Field
The invention relates to the technical field of building components, in particular to a prefabricated slab with a built-in cavity and a manufacturing method thereof.
Background
Precast concrete panels, also called precast slabs, are modules or slabs used in construction. Because the concrete prefabricated member is produced and processed in a prefabricating field and is directly transported to a construction site for installation, the prefabricated member is called a prefabricated plate. Various structural members and connecting pieces can be embedded in the prefabricated slab, and various pipe fittings such as a cable pipe for threading, a water pipe for water passing and an air pipe for ventilation can also be embedded in the prefabricated slab. However, most of the pre-buried pipes used in the existing construction are made of PVC plastic pipes, the PVC plastic pipes are basically straight pipes, and if the pipes need to turn, the pipes need to be connected by elbows, and the elbows are generally right-angle elbows. Therefore, the pipelines are inconvenient to be randomly arranged in the prefabricated plate, meanwhile, the pipelines adopt right-angle elbow cables, water and gas, the resistance of the cables, the water and the gas at the turning positions of the pipelines is large, and particularly, the cables are difficult to penetrate through the right-angle elbows.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a precast slab with a built-in cavity and a manufacturing method thereof, wherein the precast slab can flexibly arrange pipelines, turn by adopting a larger arc angle and form a cavity in the precast slab without using a pre-buried pipe.
In order to achieve the above purpose, according to the technical scheme of the present invention, a precast slab with a built-in cavity is provided, the cavity includes a pipe and/or a cavity which is arranged inside the precast slab during a precast slab forming process, the pipe and/or the cavity is a hollow pipe and/or a hollow shell which is embedded inside the precast slab, or the pipe and/or the cavity is a flexible pipe and/or a flexible shell which is filled with a fluid, or the pipe and/or the cavity is a solid cylinder and/or a solid block which is made of a hot-melt material, and the pipe and/or the cavity is provided with an extending end at the edge or the surface of the precast slab.
In order to facilitate the practical operation of a construction site and reduce the cost of the meltable auxiliary materials, the preferable technical scheme is that the solid cylinder and/or solid block body made of the hot-melt material comprises a cylinder and/or solid block body made of paraffin and asphalt, or a cylinder and/or solid block body made of ice, frozen glue and frozen paste. The paraffin and the asphalt are solid at normal temperature, can be melted into liquid only at a lower temperature for a shorter time, are easy to solidify and shape again, and can be easily manufactured into various shapes and structures, or disconnected or connected. The processing and manufacturing cost is low, the operation is simple and easy to implement, and after the paraffin and the asphalt are discharged from the prefabricated slab, the paraffin and the asphalt can form a moisture-proof and leakage-proof lubricating film layer consisting of the paraffin or the asphalt on the surface of the pipeline and/or the cavity in the prefabricated slab. The solid cylinder and/or the solid block body made of ice, frozen glue and frozen paste need to be operated in a low-temperature environment, but the solid cylinder and/or the solid block body made of ice, frozen glue and frozen paste can be quickly discharged from the prefabricated plate at normal temperature without heating, and reserved internal pipelines and/or cavities are formed, so that the processing and manufacturing cost is lower.
In order to melt the paraffin or the asphalt quickly and conveniently and enable the paraffin or the asphalt to be reused for multiple times, and simultaneously to ensure the safe operation safety of the paraffin or the asphalt in the velvet melting process, a further preferable technical scheme is that an electric heating wire is embedded in the paraffin or the asphalt, two ends of the electric heating wire are exposed out of a solid cylinder and/or a solid block made of the paraffin or the asphalt, and two ends of the electric heating wire are provided with an insulating heat-shrinkable tube and a plug.
In order to melt the paraffin or the asphalt quickly and conveniently and enable the paraffin or the asphalt to be reused for a plurality of times, and to ensure safe operation of the paraffin or the asphalt in the wool melting process, a further preferable technical scheme is that a central hose and/or a central soft shell for circulating hot fluid is embedded in the paraffin or the asphalt or ice or frozen glue or frozen paste, and the end part of the central hose and/or the central soft shell is exposed out of a solid cylinder and/or a solid block body made of the paraffin or the asphalt or the ice, the frozen glue or the frozen paste. The technical scheme is that the electric heating wire in the technical scheme is replaced by a central hose and/or a central soft shell, although a hard tube can be adopted, hot fluid, such as hot water, hot oil or hot gas, is injected into the central hose and/or the central soft shell to melt paraffin, asphalt, ice, frozen glue or frozen paste and is discharged from the precast slab, and finally a cavity structure is formed in the precast slab.
In order to facilitate simple and easy operation, reduce the manufacturing cost and reduce the pollution to the environment, the preferable technical scheme is that the fluid can be any one of gas, liquid, powder, particles and fiber, the flexible pipe body and/or the flexible shell comprises a flexible plastic pipe and/or a flexible plastic shell, or a flexible rubber pipe and/or a flexible rubber shell, the flexible pipe body and/or the flexible shell is/are respectively provided with an inlet and an outlet of the fluid, or the inlet and the outlet are the same port, the inlet and the outlet of the flexible pipe body and/or the flexible shell are connected with one end of a valve, and the other end of the valve is connected with a fluid source or a discharge part. Wherein, the process of filling the particles such as sand into the flexible pipe body and/or the soft shell is simplest and the cost is lowest, and the flexible pipe body and/or the soft shell is made of flexible plastic pipes and/or flexible plastic shells with the lowest cost and the simplest operation.
In order to facilitate simple and easy operation, reduce the manufacturing cost and reduce the pollution to the environment, the preferable technical proposal is that the hollow pipe and/or the hollow shell is/are a hard plastic pipe, a metal pipe, a hollow hard plastic shell and a hollow metal shell. The hard plastic pipe, the metal pipe, the hollow hard plastic shell and the hollow metal shell can save the treatment process after the prefabricated plate is formed.
In order to improve the tensile strength of the reinforcement cage in the prefabricated slab and reduce the consumption of the steel bars, the prefabricated slab is further provided with the reinforcement cage, and the steel bars in the reinforcement cage are steel bars with carbon fiber cores at the centers.
The manufacturing method of the prefabricated slab with the built-in cavity comprises the following process steps;
s1, preparing a mould for manufacturing the precast slab, and assembling the mould to form a cavity for manufacturing the precast slab;
s2, paving a base layer on the bottom of the mold by the concrete gravel slurry, and vibrating and flattening the concrete gravel slurry by a vibrator;
s3, placing the bound or welded steel reinforcement framework on the concrete slurry paved with a base layer, and forming a supporting structure for the steel reinforcement framework through a mould;
s4, pouring concrete gravel slurry into the mold again, burying the steel reinforcement framework by the concrete gravel slurry, and vibrating the concrete gravel slurry uniformly and flatly by the vibrator again;
s5, laying the pipeline and/or the cavity to be prefabricated in the precast slab on the concrete sand slurry on the reinforcement framework;
s6, pouring concrete gravel slurry into the mold again to enable the concrete gravel slurry to cover the pipeline and/or the cavity and reach the set thickness of the precast slab, and vibrating the concrete gravel slurry uniformly by using the vibrator again and leveling the upper surface;
and S7, curing and drying the precast slab prepared in the step S6.
The precast slab can adopt a layered and step-by-step pouring method in the manufacturing process, so that the cavity and the steel reinforcement framework in the precast slab can be arranged according to a set layout structure, and the surface of the precast slab can be smooth and flat
In order to facilitate the embedding of the prefabricated pipelines and/or cavities on both sides of the prefabricated slab steel reinforcement framework and enable the pipelines and/or cavities embedded on both sides of the prefabricated slab steel reinforcement framework to be communicated with each other, the preferable technical scheme is that after the step S2, pipelines and/or cavities to be prefabricated inside the prefabricated slab are laid on a base layer, filled with concrete gravel slurry, and then the steps S3 to S7 are carried out.
In order to facilitate the removal or discharge of the hose body and/or the soft shell, the solid cylinder and/or the solid block embedded in the prefabricated slab, so that a cavity structure is formed in the prefabricated slab, the preferred technical scheme is that after the step of S7 is completed, paraffin, asphalt, ice, frozen glue or frozen paste of the solid cylinder and/or the solid block made of hot-melt material in the prefabricated slab is connected with a power supply through an embedded electric heating wire, so that the paraffin, asphalt, ice, frozen glue or frozen paste is melted and recovered and reused by a recovery container; or the fluid in the flexible pipe body and/or the soft shell with the pipeline and/or the cavity filled with the fluid is discharged by opening the valve connected to the inlet and the outlet of the end part of the flexible pipe body and/or the soft shell. The solid column and/or solid block embedded in the prefabricated plate or the fluid in the flexible pipe body and/or soft shell filled with fluid can be discharged by hot melting or discharging the fluid, and then the flexible pipe body and/or soft shell is pulled out of the prefabricated plate, so that the set pipeline and/or cavity can be left in the prefabricated plate.
The invention has the advantages and beneficial effects that: the precast slab with the built-in cavity and the manufacturing method have the characteristics that pipelines can be flexibly arranged in the precast slab, the pipelines can be turned by a larger arc angle, the cavity can be formed in the precast slab without using a pre-buried pipe, and the like.
In the process of manufacturing the precast slab, a hard plastic pipe or a metal pipe and/or a hollow plastic shell or a metal shell can be directly embedded in the precast slab, or a hose and/or a hollow soft shell with filler embedded in the pipe can be embedded, water-insoluble lubricant is coated on the outer surface of the hose and/or the hollow soft shell, after the precast slab is dried and formed, the filler in the hose and/or the hollow soft shell is discharged, and then the hose and/or the hollow soft shell is pulled out, so that a preset cavity structure is formed in the precast slab. The pre-fabricated panel can be pre-embedded with a meltable solid rod body and/or a meltable solid block body, and after the pre-fabricated panel is dried and formed, the meltable solid rod body and/or the meltable solid block body can be melted by heating and discharged from the pre-fabricated panel, so that a preset cavity structure is formed in the pre-fabricated panel. Wherein, during the manufacturing process of the prefabricated plate, a hard plastic pipe or a metal pipe and/or a hollow plastic shell or a metal shell can be directly embedded in the prefabricated plate to form a cavity in the prefabricated plate, wherein the cavity in the prefabricated plate is the cavity in the hard plastic pipe or the metal pipe and/or the hollow plastic shell or the metal shell, and after the prefabricated plate is formed, the hard plastic pipe or the metal pipe and/or the hollow plastic shell or the metal shell are permanently embedded in the prefabricated plate and cannot be taken out. The hose and/or the hollow soft shell or the solid rod body and/or the solid block body which can be melted are/is pre-embedded in the precast slab, after the precast slab is dried and formed, the hose and/or the hollow soft shell or the solid rod body and/or the solid block body can be taken out or discharged from the precast slab, and only a cavity with a set structure and a set shape is reserved in the precast slab, but the pre-embedded pipe and/or the shell is not reserved. The removed hose and/or soft shell, or the melted and discharged meltable material, can be reused for a plurality of times.
Drawings
FIG. 1 is a schematic front view showing the construction of a prefabricated panel having a built-in cavity according to the present invention;
FIG. 2 is a schematic cross-sectional view showing the construction of a prefabricated panel having a built-in cavity according to the present invention during the fabrication thereof;
FIG. 3 is a schematic cross-sectional view of the prefabricated panel with a built-in cavity according to the present invention after being fabricated;
FIG. 4 is one of the schematic structural diagrams of solid cylinder and/or solid block made of paraffin in the prefabricated slab with built-in cavity according to the present invention;
FIG. 5 is a second schematic structural view of a solid cylinder and/or a solid block made of paraffin in the prefabricated slab with a built-in cavity according to the present invention;
FIG. 6 is a schematic structural diagram of a flexible pipe body filled with fluid in a pipeline in a prefabricated plate provided with a built-in cavity according to the present invention;
FIG. 7 is a schematic structural diagram of a process for manufacturing a prefabricated panel with a built-in cavity according to the present invention.
In the figure: 1. prefabricating a slab; 2. a cavity; 3. a pipeline; 4. a cavity; 5. a hollow pipe body; 6. a hollow shell; 7. a fluid; 8. a flexible pipe body; 9. a soft shell; 10. a solid cylinder; 11. a solid block-shaped body; 12. an electric heating wire; 13. an insulating heat shrink tube; 14. a plug; 15. a central hose; 16. a central soft shell; 17. a valve; 18. a steel reinforcement cage; 19. a carbon fiber core; 20. a mold; 21. a cavity; 22. a base layer.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 6, the invention relates to a precast slab 1 with a built-in cavity, wherein the cavity 2 comprises a pipeline 3 and/or a cavity 4 which are arranged inside the precast slab 1 in the process of molding and checking the precast slab 1, the pipeline 3 and/or the cavity 4 is a hollow pipe body 5 and/or a hollow shell 6 which are embedded inside the precast slab 1, or the pipeline 3 and/or the cavity 4 is a hose body 8 and/or a soft shell 9 which are filled with a fluid 7, or the pipeline 3 and/or the cavity 4 is a solid cylinder 10 and/or a solid block body 11 which are made of a hot-melt material, and the pipeline 3 and/or the cavity 4 are provided with extending ends at the edge or the surface of the precast slab 1.
As shown in fig. 2 and 3, in order to facilitate the practical operation of the construction site and reduce the cost of the meltable auxiliary materials, the preferred embodiment of the present invention is that the solid cylinder 10 and/or the solid block 11 made of the hot-melt material comprises a cylinder 10 and/or a solid block 11 made of paraffin, asphalt, or a cylinder 10 and/or a solid block 11 made of ice, frozen glue, or frozen paste. The paraffin and the asphalt are solid at normal temperature, can be melted into liquid only at a lower temperature for a shorter time, are easy to solidify and shape again, and can be easily manufactured into various shapes and structures, or disconnected or connected. Therefore, the processing and manufacturing cost is low, the operation is simple and easy to implement, and after the paraffin and the asphalt are discharged from the prefabricated slab 1, the paraffin and the asphalt can form a moisture-proof and anti-seepage lubricating film layer consisting of the paraffin or the asphalt on the surface of the pipeline 3 and/or the cavity 4 in the prefabricated slab 1. The solid cylinder 10 and/or the solid block 11 made of ice, frozen glue and frozen paste need to be operated in a low-temperature environment, but the solid cylinder 10 and/or the solid block 11 made of ice, frozen glue and frozen paste can be quickly discharged from the prefabricated plate 1 at normal temperature without heating, and the reserved inner pipeline 3 and/or the reserved cavity 4 are formed, so that the processing and manufacturing cost is lower.
As shown in fig. 2 and 4, in order to facilitate the rapid and convenient melting of paraffin or asphalt and to enable the paraffin or asphalt to be reused many times, and to ensure the safe operation of the paraffin or asphalt during the melting of wool, a further preferred embodiment of the present invention is to embed a heating wire 12 in the paraffin or asphalt, expose both ends of the heating wire 12 to the outside of the solid cylinder 3 and/or the solid block 11 made of paraffin or asphalt, and provide insulating heat-shrinkable tubes 13 and plugs 14 at both ends of the heating wire 12.
As shown in fig. 2 and 5, in order to facilitate the rapid and convenient melting of the paraffin or asphalt and to enable the paraffin or asphalt to be reused for a plurality of times, and to ensure the safe operation of the paraffin or asphalt during the melting of the wool, a further preferred embodiment of the present invention is to embed a central hose 15 and/or a central soft shell 16 for circulating a hot fluid in the paraffin, asphalt, ice, frozen glue, or frozen paste, wherein the end of the central hose 15 and/or the central soft shell 16 is exposed to the outside of the solid cylinder 10 and/or the solid block-shaped body 11 made of paraffin, asphalt, ice, frozen glue, or frozen paste. The technical scheme is that the heating wire 12 in the technical scheme is replaced by the central hose 15 and/or the central soft shell 16, although a hard tube can be adopted, and then paraffin, asphalt, ice, frozen glue and frozen paste are melted and discharged from the prefabricated slab 1 by injecting hot fluid, such as hot water, hot oil or hot gas, into the central hose 15 and/or the central soft shell 16, and finally a cavity structure is formed in the prefabricated slab 1.
As shown in fig. 2 and 6, in order to facilitate simple and easy operation, reduce manufacturing cost, and reduce environmental pollution, in a preferred embodiment of the present invention, the fluid may be any one of gas, liquid, powder, particulate matter, and fibrous body, the flexible pipe body 8 and/or the flexible casing 9 includes a flexible pipe and/or a flexible plastic casing, or a flexible rubber pipe and/or a flexible rubber casing, an inlet and an outlet of the fluid are respectively provided on the flexible pipe body 8 and/or the flexible casing 9, or the inlet and the outlet are the same port, the inlet and the outlet of the flexible pipe body 8 and/or the flexible casing 9 are connected to one end of a valve 17, and the other end of the valve 17 is connected to a fluid source or a discharge point. Wherein, the process of filling the particles such as sand into the flexible pipe body 8 and/or the soft shell 9 is the simplest and the lowest cost, and the flexible pipe body 8 and/or the soft shell 9 is made of flexible plastic pipe and/or the lowest cost and the simplest operation.
As shown in fig. 1 and 2, in order to facilitate simple and easy operation, reduce manufacturing cost and reduce environmental pollution, the preferred embodiment of the present invention further provides that the hollow tube 5 and/or the hollow shell 6 is a hard plastic tube, a metal tube, a hollow hard plastic shell or a hollow metal shell. The hard plastic pipe, the metal pipe, the hollow hard plastic shell and the hollow metal shell can save the treatment process after the prefabricated plate is formed.
As shown in fig. 1 and 2, in order to improve the tensile strength of the reinforcement cage in the prefabricated slab and reduce the amount of the steel bar, in a preferred embodiment of the invention, a reinforcement cage 18 is further arranged in the prefabricated slab 1, and the steel bar in the reinforcement cage 18 is a steel bar with a carbon fiber core 19 at the center.
As shown in fig. 7, a manufacturing method of the prefabricated slab with the built-in cavity comprises the following process steps;
s1, preparing a mould 20 for manufacturing the precast slab 1, and assembling the mould 20 to form a cavity 21 for manufacturing the precast slab 1;
s2, paving a base layer 22 on the bottom of the mould with the concrete gravel slurry, and vibrating and flattening the concrete gravel slurry by using a vibrator;
s3, placing the bound or welded steel reinforcement framework 18 on the concrete slurry paved with the base layer 22, and forming a supporting structure for the steel reinforcement framework 18 through the mould 20;
s4, pouring concrete gravel slurry into the mold 20 again, burying the reinforcement cage 18 with the concrete gravel slurry, and vibrating the concrete gravel slurry uniformly and flatly by using the vibrator again;
s5, laying the pipeline 3 and/or the cavity 4 to be prefabricated in the precast slab 1 on the concrete sand slurry on the steel reinforcement framework 18;
s6, pouring concrete gravel slurry into the mold 20 again to enable the concrete gravel slurry to cover the pipeline 3 and/or the cavity 4 and reach the set thickness of the precast slab 1, and vibrating the concrete gravel slurry uniformly by using the vibrator again and flattening the upper surface;
and S7, curing and drying the precast slab 1 prepared in the step S6.
The precast slab can adopt a layered and step-by-step pouring method in the manufacturing process, so that the cavity in the precast slab 1 and the steel reinforcement framework 18 are arranged according to a set layout structure, and the surface of the precast slab can be smooth and flat.
In order to facilitate the embedding of the prefabricated pipes 3 and/or the cavities 4 on both sides of the prefabricated slab framework 18 and to enable the pipes 3 and/or the cavities 4 embedded on both sides of the prefabricated slab framework 18 to be communicated with each other, in accordance with a preferred embodiment of the present invention, the pipes 3 and/or the cavities 4 to be prefabricated inside the prefabricated slab 1 are laid on the base 22 after the step S2, filled with concrete gravel slurry, and then the steps S3 to S7 are performed.
In order to facilitate the removal or discharge of the flexible pipe 8 and/or the soft shell 9, the solid cylinder 10 and/or the solid block 11 embedded in the prefabricated slab 1, so as to form a cavity structure in the prefabricated slab 1, in a preferred embodiment of the present invention, after the step S7 is completed, paraffin, asphalt, ice, frozen glue or frozen paste of the solid cylinder 10 and/or the solid block 11 made of a hot-melt material in the prefabricated slab 1 is connected to a power supply through the embedded heating wire 12, so that the paraffin, asphalt, ice, frozen glue or frozen paste is melted and recycled by a recycling container; or the fluid in the flexible pipe body 8 and/or the soft shell 9 filled with the fluid in the pipeline 3 and/or the cavity 4 is discharged out of the flexible pipe body 8 and/or the soft shell 9 by opening valves connected to the inlet and the outlet of the end part of the flexible pipe and/or the soft shell. The solid cylinder 10 and/or the solid block 11 embedded in the prefabricated slab 1 or the fluid filled flexible pipe 8 and/or the soft shell 9 can be discharged through hot melting or discharging of the fluid, and then the flexible pipe 8 and/or the soft shell 9 is pulled out of the prefabricated slab 1, so that the set pipeline and/or cavity can be left in the prefabricated slab 1.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The prefabricated slab with the built-in cavity is characterized in that the cavity comprises a pipeline and/or a cavity which is arranged inside the prefabricated slab in the process of forming and checking the prefabricated slab, the pipeline and/or the cavity are hollow pipes and/or hollow shells which are embedded inside the prefabricated slab, or the pipeline and/or the cavity are flexible pipes and/or soft shells which are filled with fluid, or the pipeline and/or the cavity are solid cylinders and/or solid blocks which are made of hot-melting materials, and the pipeline and/or the cavity are provided with extending ends at the edges or the surfaces of the prefabricated slab.
2. The prefabricated panel with a built-in cavity according to claim 1, wherein the solid cylinder and/or solid block made of hot-melt material comprises a cylinder and/or solid block made of paraffin or asphalt, or a cylinder and/or solid block made of ice, frozen glue or frozen paste.
3. The prefabricated panel with a built-in cavity according to claim 2, wherein a heating wire is embedded in the paraffin or the asphalt, both ends of the heating wire are exposed to the outside of the cylinder and/or the solid block body made of the paraffin or the asphalt, and an insulating heat-shrinkable tube and a plug are provided at both ends of the heating wire.
4. The prefabricated panel with a built-in cavity according to claim 2, wherein a central hose and/or a central soft shell for circulating a hot fluid are embedded in the paraffin, or asphalt, or ice, or frozen gel, or frozen paste, and the end of the central hose and/or the central soft shell is exposed to the outside of a solid cylinder and/or a solid block body made of the paraffin, or asphalt, or ice, or frozen gel, or frozen paste.
5. The prefabricated panel with the built-in cavity according to claim 1, wherein the fluid is any one of gas, liquid, powder, particles and fibrous bodies, the hose and/or the soft shell comprises a flexible plastic pipe and/or a flexible plastic shell, or a flexible rubber pipe and/or a flexible rubber shell, an inlet and an outlet of the fluid are respectively arranged on the hose and/or the soft shell, or the inlet and the outlet are the same port, the inlet and the outlet of the hose and/or the soft shell are connected with one end of a valve, and the other end of the valve is connected with a fluid source or a discharge place.
6. The prefabricated panel with a built-in cavity according to claim 1, wherein the hollow tube and/or the hollow shell is/are a hard plastic tube, a metal tube, a hollow hard plastic shell and a hollow metal shell.
7. The precast slab with the built-in cavity according to any one of claims 1 to 6, wherein a steel reinforcement framework is further arranged in the precast slab, and the steel reinforcement in the steel reinforcement framework is steel reinforcement with a carbon fiber core at the center.
8. The manufacturing method of the prefabricated slab with the built-in cavity as claimed in claim 7, which is characterized by comprising the following process steps;
s1, preparing a mould for manufacturing the precast slab, and assembling the mould to form a cavity for manufacturing the precast slab;
s2, paving a base layer on the bottom of the mold by the concrete gravel slurry, and vibrating and flattening the concrete gravel slurry by a vibrator;
s3, placing the bound or welded steel reinforcement framework on the concrete slurry paved with a base layer, and forming a supporting structure for the steel reinforcement framework through a mould;
s4, pouring concrete gravel slurry into the mold again, burying the steel reinforcement framework by the concrete gravel slurry, and vibrating the concrete gravel slurry uniformly and flatly by the vibrator again;
s5, laying the pipeline and/or the cavity to be prefabricated in the precast slab on the concrete sand slurry on the reinforcement framework;
s6, pouring concrete gravel slurry into the mold again to enable the concrete gravel slurry to cover the pipeline and/or the cavity and reach the set thickness of the precast slab, and vibrating the concrete gravel slurry uniformly by using the vibrator again and leveling the upper surface;
and S7, curing and drying the precast slab prepared in the step S6.
9. The method for manufacturing a prefabricated panel with a built-in cavity according to claim 8, wherein the pipes and/or the cavities to be prefabricated inside the prefabricated panel are laid on the base layer after the step of S2, filled with concrete gravel slurry, and then subjected to the operations of the steps S3 to S7.
10. The method for manufacturing a prefabricated panel with a built-in cavity according to claim 8 or 9, wherein after the step S7 is completed, the paraffin, the asphalt, the ice, the frozen glue or the frozen paste of the solid cylinder and/or the solid block made of the hot-melt material in the prefabricated panel is connected to a power supply through an embedded electric heating wire, so that the paraffin, the asphalt, the ice, the frozen glue or the frozen paste are melted and recycled by a recycling container; or the fluid in the flexible pipe body and/or the soft shell with the pipeline and/or the cavity filled with the fluid is discharged by opening the valve connected to the inlet and the outlet of the end part of the flexible pipe body and/or the soft shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010857500.2A CN112227598A (en) | 2020-08-24 | 2020-08-24 | Prefabricated slab with built-in cavity and manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010857500.2A CN112227598A (en) | 2020-08-24 | 2020-08-24 | Prefabricated slab with built-in cavity and manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112227598A true CN112227598A (en) | 2021-01-15 |
Family
ID=74117224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010857500.2A Pending CN112227598A (en) | 2020-08-24 | 2020-08-24 | Prefabricated slab with built-in cavity and manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112227598A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936506A (en) * | 2021-02-07 | 2021-06-11 | 肇泽辰 | Manufacturing method of prefabricated slab with built-in cavity |
| CN113021596A (en) * | 2021-03-09 | 2021-06-25 | 哈尔滨金英建材有限公司 | Light brick for building, forming device and forming method |
| CN113561274A (en) * | 2021-07-20 | 2021-10-29 | 南京林业大学 | Manufacturing method of light magnetic wood composite section |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312878A (en) * | 1998-08-20 | 2001-09-12 | 哈姆·本杰明·斯泰恩 | Void formers and cover for void formers |
| US6631599B1 (en) * | 2002-04-01 | 2003-10-14 | Fukuvi Usa, Inc. | Precast panel insert and attachments thereto |
| US20060130423A1 (en) * | 2004-12-22 | 2006-06-22 | Zamora Raul Z | Affordable, modular concrete homes, condominiums, and apartments |
| CN2916016Y (en) * | 2006-03-16 | 2007-06-27 | 欧阳文皇 | Combined core mould for cast-in-situ reinforced concrete |
| CN201241476Y (en) * | 2008-03-18 | 2009-05-20 | 杨进方 | Combined square box core mould |
| CN205035978U (en) * | 2015-09-30 | 2016-02-17 | 中民筑友有限公司 | Prefabricated hollow slab |
| CN105696746A (en) * | 2016-01-21 | 2016-06-22 | 广东木立方木屋有限公司 | Making method of integrated multifunctional wall module and multifunctional wall module |
| CN107639723A (en) * | 2017-09-26 | 2018-01-30 | 广东省建筑科学研究院集团股份有限公司 | A kind of the production template and production method of concrete prefabricated wallboard with holes |
| CN107859232A (en) * | 2017-12-14 | 2018-03-30 | 陕西凝远新材料科技股份有限公司 | A kind of sand aerated concrete sheet material of built-in line box line pipe and preparation method thereof |
| WO2018145053A1 (en) * | 2017-02-06 | 2018-08-09 | Yin Hongxi | Tie shear connector for wall panel construction and method thereof |
| CN108930358A (en) * | 2017-05-22 | 2018-12-04 | 香港城市大学深圳研究院 | A kind of embedded concrete panel of heat pipe and house |
| CN109016126A (en) * | 2018-07-10 | 2018-12-18 | 中建钢构有限公司 | A method of based on assembled architecture wallboard preheating embedding line |
-
2020
- 2020-08-24 CN CN202010857500.2A patent/CN112227598A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1312878A (en) * | 1998-08-20 | 2001-09-12 | 哈姆·本杰明·斯泰恩 | Void formers and cover for void formers |
| US6631599B1 (en) * | 2002-04-01 | 2003-10-14 | Fukuvi Usa, Inc. | Precast panel insert and attachments thereto |
| US20060130423A1 (en) * | 2004-12-22 | 2006-06-22 | Zamora Raul Z | Affordable, modular concrete homes, condominiums, and apartments |
| CN2916016Y (en) * | 2006-03-16 | 2007-06-27 | 欧阳文皇 | Combined core mould for cast-in-situ reinforced concrete |
| CN201241476Y (en) * | 2008-03-18 | 2009-05-20 | 杨进方 | Combined square box core mould |
| CN205035978U (en) * | 2015-09-30 | 2016-02-17 | 中民筑友有限公司 | Prefabricated hollow slab |
| CN105696746A (en) * | 2016-01-21 | 2016-06-22 | 广东木立方木屋有限公司 | Making method of integrated multifunctional wall module and multifunctional wall module |
| WO2018145053A1 (en) * | 2017-02-06 | 2018-08-09 | Yin Hongxi | Tie shear connector for wall panel construction and method thereof |
| CN108930358A (en) * | 2017-05-22 | 2018-12-04 | 香港城市大学深圳研究院 | A kind of embedded concrete panel of heat pipe and house |
| CN107639723A (en) * | 2017-09-26 | 2018-01-30 | 广东省建筑科学研究院集团股份有限公司 | A kind of the production template and production method of concrete prefabricated wallboard with holes |
| CN107859232A (en) * | 2017-12-14 | 2018-03-30 | 陕西凝远新材料科技股份有限公司 | A kind of sand aerated concrete sheet material of built-in line box line pipe and preparation method thereof |
| CN109016126A (en) * | 2018-07-10 | 2018-12-18 | 中建钢构有限公司 | A method of based on assembled architecture wallboard preheating embedding line |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112936506A (en) * | 2021-02-07 | 2021-06-11 | 肇泽辰 | Manufacturing method of prefabricated slab with built-in cavity |
| CN113021596A (en) * | 2021-03-09 | 2021-06-25 | 哈尔滨金英建材有限公司 | Light brick for building, forming device and forming method |
| CN113021596B (en) * | 2021-03-09 | 2022-08-12 | 上海远晟建设工程有限公司 | Light brick for building, forming device and forming method |
| CN113561274A (en) * | 2021-07-20 | 2021-10-29 | 南京林业大学 | Manufacturing method of light magnetic wood composite section |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112227598A (en) | Prefabricated slab with built-in cavity and manufacturing method | |
| CN104018673B (en) | Ultra-large volume concrete one-time continuous pours into a mould multi cycle real-time temperature control construction technology | |
| RU2618725C2 (en) | Method of filling the break in the coating of a pipeline with applicable coating, preferred by thermosolation coating | |
| CN109736499B (en) | Prefabricating process of prefabricated laminated slab | |
| CN107587654A (en) | A kind of assembled heat insulation wall and preparation method thereof | |
| CN107265947A (en) | The massive concrete and its construction technology of a kind of anti-thermal cracking | |
| CN113668928B (en) | Method for controlling construction cracks of ultra-large-volume concrete water pool | |
| CN107945646A (en) | A kind of assembled tunnel model structure and preparation method thereof | |
| CN111535208A (en) | Construction process of foam concrete and steel corrugated pipe composite culvert | |
| CA2102309A1 (en) | Conduits having shock absorbing shell and method for their formation | |
| CN111764428A (en) | Trapezoidal socket structure of underground municipal comprehensive pipe gallery and construction method thereof | |
| CA2722098C (en) | Dam construction method utilizing freezing technique | |
| JP2008088715A (en) | Concrete structure reconstructing method, concrete structure producing method, and corrosion resistant member for use in the methods | |
| CN206070876U (en) | A kind of ultra-high performance concrete post permanent template | |
| CN112936506A (en) | Manufacturing method of prefabricated slab with built-in cavity | |
| CN201621381U (en) | Prestressed concrete and glass fiber reinforced plastic composite pipe | |
| JP5896930B2 (en) | Joint sealing material for concrete pavement and its construction method | |
| CN107576574B (en) | Testing method for equal-size limit water pressure resistance of deformation joint embedded water stop | |
| CN207686288U (en) | The manufacture of the horizontal hole to be provided of wall and plugging device | |
| CN213390825U (en) | Wall structure of precast concrete double-sided superposed shear wall | |
| CN211172673U (en) | Brickwork and mold processing thereof | |
| CN106522166A (en) | Construction method for concrete engineering cavity mould with bulges and reinforcing fibers | |
| SE1650697A1 (en) | Construction element, bridge and method for fabricating a construction element | |
| CN207093141U (en) | A kind of underground airtight wall with biological modeling self-healing performance | |
| CN206607745U (en) | Assembled self-insulating integrated wall |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210115 |
|
| RJ01 | Rejection of invention patent application after publication |