CN112982809A - High-strength environment-friendly prefabricated slab and manufacturing method thereof - Google Patents
High-strength environment-friendly prefabricated slab and manufacturing method thereof Download PDFInfo
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- CN112982809A CN112982809A CN202110175562.XA CN202110175562A CN112982809A CN 112982809 A CN112982809 A CN 112982809A CN 202110175562 A CN202110175562 A CN 202110175562A CN 112982809 A CN112982809 A CN 112982809A
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- 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
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/26—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups
- E04C2/28—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials composed of materials covered by two or more of groups E04C2/04, E04C2/08, E04C2/10 or of materials covered by one of these groups with a material not specified in one of the groups combinations of materials fully covered by groups E04C2/04 and E04C2/08
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- 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
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- 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
- E04B5/16—Load-carrying floor structures wholly or partly cast or similarly formed in situ
- E04B5/32—Floor structures wholly cast in situ with or without form units or reinforcements
- E04B5/36—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor
- E04B5/38—Floor structures wholly cast in situ with or without form units or reinforcements with form units as part of the floor with slab-shaped form units acting simultaneously as reinforcement; Form slabs with reinforcements extending laterally outside the element
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- 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
- E04C2/02—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials
- E04C2/04—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres
- E04C2/06—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by specified materials of concrete or other stone-like material; of asbestos cement; of cement and other mineral fibres reinforced
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- Manufacturing & Machinery (AREA)
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Abstract
The invention discloses a high-strength environment-friendly precast slab and a manufacturing method thereof. Reinforced structure can be through mill batch manufacturing in advance, and is more convenient, and whole compressive strength is high, support performance is good, mixes appropriate amount regeneration addition material through adding in regeneration concrete is pour, under the circumstances of guaranteeing prefabricated plate body intensity, reduction in production cost can realize recycling of part waste material, has fine feature of environmental protection and practicality.
Description
Technical Field
The invention relates to the technical field of building prefabricated panels, in particular to a high-strength environment-friendly prefabricated panel and a manufacturing method thereof.
Background
At present, the quantity of waste concrete in construction waste caused by annual demolition from old buildings in China is huge and is increasing day by day, and the huge treatment cost and the environmental problems caused by the treatment cost are also very prominent. In order to reduce exploitation of natural resources to the maximum extent, recycling of construction waste must be increased to the maximum extent. The waste concrete is effectively treated and utilized to become a recyclable renewable resource, and the development and research on the application technology of the waste concrete are imperative. Along with the development of economic construction in China, the quantity of construction waste is gradually increased, and the resource utilization of the construction waste can not only reduce the environmental problems caused by waste stacking, but also save resources, so that the effective treatment of the construction waste is very important.
Disclosure of Invention
The invention aims to provide an environment-friendly precast slab which has high strength and can effectively utilize construction waste and a manufacturing method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a high strength environmental protection prefabricated plate, the package rubbing board body, the plate body includes steel structure skeleton, a steel structure skeleton lower extreme fixed connection consolidates the frame, it is equipped with the recycled concrete layer to consolidate the frame inner circle, it is equipped with non-recycled concrete layer to consolidate the frame outer lane, recycled concrete layer and non-recycled concrete layer adopt once pouring mode to connect into a whole, steel structure skeleton runs through whole recycled concrete layer and is located non-recycled concrete layer, it is located non-recycled concrete layer completely to consolidate the frame.
As the preferred scheme, non-recycled concrete layer is closed annular structure, steel structure skeleton is by the multirow reinforcing bar violently to erect concatenation and constitute.
Preferably, the reinforcing frame comprises a first reinforcing member and a second reinforcing member, and the first reinforcing member and the second reinforcing member are connected end to form a rectangular shape.
As preferred scheme, all fixed a plurality of latch segments that are equipped with on first reinforcement and the second reinforcement, every latch segment all with steel construction skeleton fixed connection.
As a preferred scheme, when the high-strength environment-friendly precast slab is in a laminated floor form, a plurality of truss structures distributed in parallel are fixed in the horizontal direction of the steel structure framework, and one end of each truss structure penetrates through the slab body and is located outside the non-recycled concrete layer.
Preferably, when the high-strength environment-friendly precast slab is in a wallboard form, four corners of the reinforcing frame are respectively and fixedly connected with hoisting point sleeves, and one end of each hoisting point sleeve penetrates through the non-recycled concrete layer and is positioned outside the non-recycled concrete layer.
Preferably, 3% -7% of regeneration additive is doped into the concrete in the regeneration concrete layer in the pouring process.
The invention also provides a manufacturing method of the high-strength environment-friendly precast slab, which comprises the following manufacturing steps:
(1) building the reinforcing frame and the steel structure framework;
(2) the non-recycled concrete layer and the recycled concrete layer are separated by a template, the outer ring of the reinforced frame is cast by using non-recycled concrete, and the inner ring of the reinforced frame is cast by using recycled concrete;
(3) respectively vibrating and compacting the regenerated concrete layer and the non-regenerated concrete layer;
(4) taking out the template;
(5) adding a proper amount of non-recycled concrete to carry out secondary vibration compaction, and connecting the non-recycled concrete layer and the recycled concrete layer into a whole;
3% -7% of regeneration additive is doped in the concrete of the regeneration concrete layer during pouring.
As a preferred scheme, when the high-strength environment-friendly precast slab is in a laminated floor form, a plurality of truss structures distributed in parallel are fixed in the horizontal direction of the steel structure framework, and one end of each truss structure penetrates through the slab body and is located outside the non-recycled concrete layer.
Preferably, when the high-strength environment-friendly precast slab is in a wallboard form, four corners of the reinforcing frame are respectively and fixedly connected with hoisting point sleeves, and one end of each hoisting point sleeve penetrates through the non-recycled concrete layer and is positioned outside the non-recycled concrete layer.
The invention has the beneficial effects that:
1. the invention can be applied to prefabricated composite floor slabs and prefabricated wall slabs, and adopts a one-time pouring mode to connect the non-recycled concrete layer and the recycled concrete layer into a whole without an isolation layer.
2. The reinforced structure can be manufactured in batches in advance through a factory, is more convenient, has high integral compressive strength and good supporting performance, integrally strengthens the prefabricated plate and completes secondary reinforcement.
3. Through add in pouring in the muddy earth and mix proper amount regeneration addition material, carry out the layering with recycled concrete under the circumstances of assurance intensity, reduction in production cost can realize recycling of part waste material, has fine feature of environmental protection and practicality.
Drawings
The invention is further described below with reference to the accompanying drawings:
fig. 1 is a schematic structural view of a high-strength environment-friendly prefabricated slab laminated floor slab form according to the present invention.
Fig. 2 is a schematic view of the construction of a high strength environmentally friendly prefabricated panel type wall panel of the present invention.
Fig. 3 is a schematic structural view of a high-strength environmentally-friendly prefabricated panel reinforced frame according to the present invention.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The following description of the embodiments of the present invention is provided by way of specific examples, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
Example 1:
a high-strength environment-friendly prefabricated slab comprises a slab body 1, wherein the slab body 1 comprises a steel structure framework 20, the lower end of the steel structure framework 20 is fixedly connected with a reinforcing frame 10, the reinforcing frame 10 is a whole body for reinforcing the steel structure framework 20, the reinforcing frame 10 comprises a first reinforcing member 12 which is symmetrical front and back, the two ends of the first reinforcing member 12 are symmetrical left and right and are fixedly connected with a second reinforcing member 11, the first reinforcing member 12 and the second reinforcing member 11 are connected end to form a rectangular shape, the first reinforcing member 12 and the second reinforcing member 11 can be fixedly connected together in other modes such as bolts and welding, a plurality of locking blocks 13 are fixedly connected to the first reinforcing member 12 and the second reinforcing member 11, the locking blocks 13 can be quickly and fixedly connected with the steel structure framework 20, and the reinforcing frame 10 can also be quickly fixed with the steel structure framework 20 in a welding mode, the lengths of the first reinforcing member 12 and the second reinforcing member 11 can be calculated according to the design result. The reinforcement is made in batches in advance through the mill, and is more convenient, and whole compressive strength is high, support performance is good.
The inner ring of the reinforced frame 10 is provided with a recycled concrete layer 2, the outer ring of the reinforced frame 10 is provided with a non-recycled concrete layer 3, the steel structure framework 20 penetrates through the whole recycled concrete layer 2 and is located in the non-recycled concrete layer 2, and the reinforced frame 10 is completely located in the non-recycled concrete layer 3.
The following pouring method is adopted:
(1) building the reinforcing frame and the steel structure framework;
(2) the non-recycled concrete layer and the recycled concrete layer are separated by a template, the outer ring of the reinforced frame is cast by using non-recycled concrete, and the inner ring of the reinforced frame is cast by using recycled concrete;
(3) respectively vibrating and compacting the regenerated concrete layer and the non-regenerated concrete layer;
(4) taking out the template;
(5) adding a proper amount of non-recycled concrete to carry out secondary vibration compaction, and connecting the non-recycled concrete layer and the recycled concrete layer into a whole;
3.2 percent of regeneration additive is doped in the concrete in the regeneration concrete layer 2 during pouring, and a proper amount of regeneration additive is doped in the regeneration concrete pouring, so that the production cost is reduced, the recycling of partial waste materials is realized under the condition of ensuring the integral strength of the prefabricated plate body, and the prefabricated plate body has good environmental protection and practicability.
The prefabricated plate of high strength environmental protection is the coincide floor form, steel construction skeleton 20 upper end horizontal direction is fixed with a plurality of parallel distribution's truss structure 30, truss structure 30 upper end runs through plate body 1 upper end and is located external space, foremost and rearmost truss structure 30 lower part is located non-recycled concrete layer 3 completely, middle part's truss structure 30 is connected into an organic whole with non-recycled concrete layer 2, the hoisting point is located foremost and rearmost truss structure 30.
Example 2:
the utility model provides a prefabricated plate of high strength environmental protection, includes a plate body 1, plate body 1 includes steel structure skeleton 20, a steel structure skeleton 20 lower extreme fixed connection consolidates frame 10, consolidate frame 10 for a whole and consolidate steel structure skeleton 20, it is equipped with regeneration concrete layer 2 to consolidate frame 10 inner circle, it is equipped with non-regeneration concrete layer 3 to consolidate frame 10 outer lane, regeneration concrete layer 2 adopts the once-through pouring mode to connect into a whole with non-regeneration concrete layer 3, steel structure skeleton 20 runs through whole regeneration concrete layer 2 and is located non-regeneration concrete layer 2, it is 3 in non-regeneration concrete layer to consolidate frame 10 is located completely.
The non-recycled concrete layer is a closed annular structure, steel structure skeleton 20 comprises multirow reinforced bar material concatenation, reinforced bar material is arranged into the website and is fixed and forms anyhow, both ends are located outside non-recycled concrete layer 3 about both ends run through non-recycled concrete layer 3 about steel structure skeleton 20.
The casting method is the same as that of example 1.
The reinforcing frame 10 comprises a first reinforcing member 12 which is symmetrical front and back, the first reinforcing member 12 is symmetrical left and right at two ends and is fixedly connected with a second reinforcing member 11, the first reinforcing member 12 and the second reinforcing member 11 are connected end to form a rectangular shape, the first reinforcing member 12 and the second reinforcing member 11 can be fixedly connected together through bolts, welding and other modes, a plurality of locking blocks 13 are fixedly connected on the first reinforcing member 12 and the second reinforcing member 11, the locking blocks 13 can be quickly and fixedly connected with a steel structure framework 20, the reinforcing frame 10 can also be quickly fixed with the steel structure framework 20 through an iron wire binding mode, the lengths of the first reinforcing member 12 and the second reinforcing member 11 can be calculated according to a design result, and therefore prefabrication completion through a factory is achieved in advance.
The concrete in the recycled concrete layer 2 is doped with 5.3% of recycled additives in the pouring process, and a proper amount of recycled additives are added and doped in the recycled concrete pouring process, so that the production cost is reduced, the recycling of partial waste materials is realized under the condition of ensuring the integral strength of the prefabricated plate body, and the recycled concrete has good environmental protection and practicability.
The prefabricated plate of high strength environmental protection is the coincide floor form, steel construction skeleton 20 upper end horizontal direction is fixed with a plurality of parallel distribution's truss structure 30, truss structure 30 upper end runs through plate body 1 upper end and is located external space, foremost and rearmost truss structure 30 lower part is located non-recycled concrete layer 3 completely, middle part's truss structure 30 is connected into an organic whole with non-recycled concrete layer 2, the hoisting point is located foremost and rearmost truss structure 30.
Example 3:
the utility model provides a prefabricated plate of high strength environmental protection, includes a plate body 1, plate body 1 includes steel structure skeleton 20, a steel structure skeleton 20 lower extreme fixed connection consolidates frame 10, consolidate frame 10 for a whole and consolidate steel structure skeleton 20, it is equipped with regeneration concrete layer 2 to consolidate frame 10 inner circle, it is equipped with non-regeneration concrete layer 3 to consolidate frame 10 outer lane, regeneration concrete layer 2 adopts the once-through pouring mode to connect into a whole with non-regeneration concrete layer 3, steel structure skeleton 20 runs through whole regeneration concrete layer 2 and is located non-regeneration concrete layer 2, it is 3 in non-regeneration concrete layer to consolidate frame 10 is located completely.
The non-recycled concrete layer is a closed annular structure, steel structure skeleton 20 comprises multirow reinforced bar material concatenation, reinforced bar material is arranged into the website and is fixed and forms anyhow, both ends are located outside non-recycled concrete layer 3 about both ends run through non-recycled concrete layer 3 about steel structure skeleton 20.
The casting method is the same as that of example 1.
Reinforced frame 10 includes the first reinforcement 12 of longitudinal symmetry, first reinforcement 12 both ends bilateral symmetry and fixedly connected with second reinforcement 11, first reinforcement 12 and second reinforcement 11 form the rectangle shape through end to end, can be in the same place through other modes fixed connection such as bolt, welding between first reinforcement 12 and the second reinforcement 11, all a plurality of latch segments 13 of fixedly connected with on first reinforcement 12 and the second reinforcement 11, latch segment 13 can be fast with steel structure skeleton 20 fixed connection, reinforced frame 10 also can be fast fixed with steel structure skeleton 20 through the welding mode, first reinforcement 12 can calculate according to the design result with the length of second reinforcement 11 to accomplish through the mill prefabrication in advance.
The concrete in the recycled concrete layer 2 is doped with 6.7% of recycled additives in the pouring process, and a proper amount of recycled additives are added and doped in the recycled concrete pouring process, so that the production cost is reduced, the recycling of partial waste materials is realized under the condition of ensuring the integral strength of the prefabricated plate body, and the recycled concrete has good environmental protection and practicability.
The high-strength environment-friendly precast slab is in a wallboard form, four corners of the reinforcing frame 10 are respectively and fixedly connected with lifting point sleeves 40, the lifting point sleeves 40 and the reinforcing frame 10 can be fixed together through spot welding, and the upper ends of the lifting point sleeves 40 penetrate through the upper end of the non-recycled concrete layer 3 and are positioned in an external space.
Example 4:
the utility model provides a prefabricated plate of high strength environmental protection, includes a plate body 1, plate body 1 includes steel structure skeleton 20, a steel structure skeleton 20 lower extreme fixed connection consolidates frame 10, consolidate frame 10 for a whole and consolidate steel structure skeleton 20, it is equipped with regeneration concrete layer 2 to consolidate frame 10 inner circle, it is equipped with non-regeneration concrete layer 3 to consolidate frame 10 outer lane, regeneration concrete layer 2 adopts the once-through pouring mode to connect into a whole with non-regeneration concrete layer 3, steel structure skeleton 20 runs through whole regeneration concrete layer 2 and is located non-regeneration concrete layer 2, it is 3 in non-regeneration concrete layer to consolidate frame 10 is located completely.
The non-recycled concrete layer is a closed annular structure, steel structure skeleton 20 comprises multirow reinforced bar material concatenation, reinforced bar material is arranged into the website and is fixed and forms anyhow, both ends are located outside non-recycled concrete layer 3 about both ends run through non-recycled concrete layer 3 about steel structure skeleton 20.
The casting method is the same as that of example 1.
The reinforcing frame 10 comprises a first reinforcing member 12 which is symmetrical front and back, the first reinforcing member 12 is symmetrical left and right at two ends and is fixedly connected with a second reinforcing member 11, the first reinforcing member 12 and the second reinforcing member 11 are connected end to form a rectangular shape, the first reinforcing member 12 and the second reinforcing member 11 can be fixedly connected together through bolts, welding and other modes, a plurality of locking blocks 13 are fixedly connected on the first reinforcing member 12 and the second reinforcing member 11, the locking blocks 13 can be quickly and fixedly connected with a steel structure framework 20, the reinforcing frame 10 can also be quickly fixed with the steel structure framework 20 through an iron wire binding mode, the lengths of the first reinforcing member 12 and the second reinforcing member 11 can be calculated according to a design result, and therefore prefabrication completion through a factory is achieved in advance.
And 4.1% of regeneration additive is mixed in the concrete in the regeneration concrete layer 2 during pouring.
The high-strength environment-friendly precast slab is in a wallboard form, four corners of the reinforcing frame 10 are respectively and fixedly connected with hoisting point sleeves 40, the hoisting point sleeves 40 and the reinforcing frame 10 can be screwed and fixed together through threads, and the upper ends of the hoisting point sleeves 40 penetrate through the upper end of the non-recycled concrete layer 3 and are positioned in an external space.
Reinforced structure can be through mill batch manufacturing in advance, and is more convenient, and whole compressive strength is high, support performance is good, mixes appropriate amount regeneration addition material through adding in regeneration concrete is pour, under the circumstances of guaranteeing prefabricated plate body intensity, reduction in production cost can realize recycling of part waste material, has fine feature of environmental protection and practicality.
The above description of the embodiments is only intended to facilitate the understanding of the method of the invention and its core ideas. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a high strength environmental protection prefabricated plate, its characterized in that, the package rubbing board body, the plate body includes steel structure skeleton, a steel structure skeleton lower extreme fixed connection consolidates the frame, it is equipped with the recycled concrete layer to consolidate the frame inner circle, it is equipped with non-recycled concrete layer to consolidate the frame outer lane, recycled concrete layer adopts once to pour the mode with non-recycled concrete layer and connects into a whole, steel structure skeleton runs through whole recycled concrete layer and is located non-recycled concrete layer, it is located non-recycled concrete layer completely to consolidate the frame.
2. The high-strength environment-friendly precast slab according to claim 1, wherein the non-recycled concrete layer is of a closed annular structure, and the steel structural framework is formed by splicing a plurality of rows of steel bars in a transverse and vertical manner.
3. The high-strength environment-friendly prefabricated panel according to any one of claims 1 or 2, wherein the reinforcement frame comprises a first reinforcement member and a second reinforcement member, and the first reinforcement member and the second reinforcement member are connected end to form a rectangular shape.
4. The high-strength environment-friendly prefabricated slab as claimed in claim 3, wherein a plurality of locking blocks are fixedly arranged on the first reinforcing member and the second reinforcing member, and each locking block is fixedly connected with the steel structure framework.
5. The high-strength environment-friendly precast slab as recited in claim 4, wherein the high-strength environment-friendly precast slab is a laminated floor slab, the steel structure framework horizontally fixes a plurality of truss structures distributed in parallel, and one end of each truss structure penetrates through the slab body and is positioned outside the non-recycled concrete layer.
6. The high-strength environment-friendly precast slab as recited in claim 4, wherein the high-strength environment-friendly precast slab is a wall slab, and hoisting point sleeves are fixedly connected to four corners of the reinforcing frame respectively, and one ends of the hoisting point sleeves penetrate through the non-recycled concrete layer and are positioned outside the non-recycled concrete layer.
7. The high-strength environment-friendly precast slab as recited in claim 1, wherein the concrete in the recycled concrete layer is mixed with 3% -7% recycled additives in the pouring.
8. The method for manufacturing the high-strength environment-friendly precast slab according to any one of claims 1 to 4, characterized by comprising the following steps:
(1) building the reinforcing frame and the steel structure framework;
(2) the non-recycled concrete layer and the recycled concrete layer are separated by a template, the outer ring of the reinforced frame is cast by using non-recycled concrete, and the inner ring of the reinforced frame is cast by using recycled concrete;
(3) respectively vibrating and compacting the regenerated concrete layer and the non-regenerated concrete layer;
(4) taking out the template;
(5) adding a proper amount of non-recycled concrete to carry out secondary vibration compaction, and connecting the non-recycled concrete layer and the recycled concrete layer into a whole;
3% -7% of regeneration additive is doped in the concrete of the regeneration concrete layer during pouring.
9. The method for manufacturing a high-strength environmentally-friendly precast slab according to claim 8, wherein when the high-strength environmentally-friendly precast slab is in a form of a laminated floor slab, the steel structure framework horizontally fixes a plurality of truss structures distributed in parallel, and one end of each truss structure penetrates through the slab body and is positioned outside the non-recycled concrete layer.
10. The method as claimed in claim 8, wherein when the high-strength environmentally-friendly precast slab is in the form of a wall panel, suspension point sleeves are fixedly connected to four corners of the reinforcing frame, and one end of each suspension point sleeve penetrates through and is positioned outside the non-recycled concrete layer.
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| CN202110175562.XA CN112982809A (en) | 2021-02-09 | 2021-02-09 | High-strength environment-friendly prefabricated slab and manufacturing method thereof |
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| CN202110175562.XA CN112982809A (en) | 2021-02-09 | 2021-02-09 | High-strength environment-friendly prefabricated slab and manufacturing method thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4222936A1 (en) * | 1992-07-11 | 1994-01-13 | Emil Voss | Form plate for building surfaces - is made of recycling material and is polygonal being joinable by connectors to form surface |
| CN107972173A (en) * | 2017-12-01 | 2018-05-01 | 沈阳建筑大学 | Regeneration concrete precast floor slab structure and production method |
| CN210798043U (en) * | 2019-08-27 | 2020-06-19 | 中电建池州长智建工有限公司 | Prefabricated partition wall |
-
2021
- 2021-02-09 CN CN202110175562.XA patent/CN112982809A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4222936A1 (en) * | 1992-07-11 | 1994-01-13 | Emil Voss | Form plate for building surfaces - is made of recycling material and is polygonal being joinable by connectors to form surface |
| CN107972173A (en) * | 2017-12-01 | 2018-05-01 | 沈阳建筑大学 | Regeneration concrete precast floor slab structure and production method |
| CN210798043U (en) * | 2019-08-27 | 2020-06-19 | 中电建池州长智建工有限公司 | Prefabricated partition wall |
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