CN112936535A - Concrete prefabricated part and method for forming rough surface thereof - Google Patents
Concrete prefabricated part and method for forming rough surface thereof Download PDFInfo
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- CN112936535A CN112936535A CN202110362263.7A CN202110362263A CN112936535A CN 112936535 A CN112936535 A CN 112936535A CN 202110362263 A CN202110362263 A CN 202110362263A CN 112936535 A CN112936535 A CN 112936535A
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- concrete
- rough surface
- bursting
- prefabricated
- forming
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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
- B28B11/00—Apparatus or processes for treating or working the shaped or preshaped articles
- B28B11/08—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads
- B28B11/0818—Apparatus or processes for treating or working the shaped or preshaped articles for reshaping the surface, e.g. smoothing, roughening, corrugating, making screw-threads for roughening, profiling, corrugating
Abstract
The invention provides a concrete prefabricated part and a method for forming a rough surface of the concrete prefabricated part, wherein the method for forming the rough surface of the concrete prefabricated part comprises the following steps: step S1: placing a bursting part on the concrete surface of the prefabricated part; step S2: the precast element is heated and the bursting element is caused to burst to form a roughened surface on the concrete surface of the precast element. The technical scheme of the invention solves the defect that the rough surface of the inner surface of the cavity wall is difficult to treat in the prior art.
Description
Technical Field
The invention relates to the technical field of production processes of concrete prefabricated parts, in particular to a concrete prefabricated part and a method for forming a rough surface of the concrete prefabricated part.
Background
Cavity walls (or double skin walls) are a common precast concrete component. The cavity wall comprises two opposite concrete prefabricated plates, and the two concrete prefabricated plates are connected through a reinforcement cage, so that a cavity is formed between the two concrete prefabricated plates. In practical construction application, concrete is poured into a cavity of the cavity wall to form a cast-in-place layer, and the concrete precast slab and the cast-in-place concrete form the wall together.
In order to increase the bonding force between the concrete precast slab and the cast-in-place concrete, it is necessary to form a rough surface having a certain roughness on the inner surface of the concrete precast slab, thereby enhancing the adhesion of the cast-in-place concrete. However, since the distance between two concrete prefabricated panels of the cavity wall is generally within 150mm, and meanwhile, the cavity is filled with a steel bar framework (a steel bar cage, a steel bar mesh or a steel bar truss), and the type and the size of the steel bar framework are not standard, the mechanical structure cannot enter the cavity, so that the rough surface in the cavity wall is treated as an industry bottleneck.
In the prior art, the roughening is usually performed in a manual mode, an operator needs to hold a roughening tool to stretch into a hole of a steel bar frame and scratch a groove on the surface of concrete, but the processing mode is time-consuming and labor-consuming, and the quality of a rough surface is poor.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect of the prior art that the rough surface of the inner surface of the cavity wall is difficult to process, and thereby provide a concrete prefabricated part and a method for forming the rough surface thereof.
In order to solve the above problems, the present invention provides a method for forming a rough surface of a concrete precast element, comprising: step S1: placing a bursting part on the concrete surface of the prefabricated part; step S2: the precast element is heated and the bursting element is caused to burst to form a roughened surface on the concrete surface of the precast element.
Optionally, the bursting element comprises a casing, and when the bursting element is heated, the medium within the casing expands to burst the casing.
Optionally, the material of the housing is ice.
Optionally, the medium within the housing is a gas or a liquid.
Optionally, the medium within the housing is hydrogen.
Alternatively, step S1 is performed between the material distribution process and the curing process.
Alternatively, step S2 is performed during the curing process.
Alternatively, the concrete precast elements are cavity walls including first and second concrete precast panels oppositely disposed, and the bursting elements are interposed between the first and second concrete precast panels at step S1.
Alternatively, in step S1, the bursting elements are injected between the first concrete precast slab and the second concrete precast slab through the injection structure.
The invention also provides a concrete prefabricated part, and the surface of the concrete prefabricated part is provided with a rough surface by the rough surface forming method.
The invention has the following advantages:
by utilizing the technical scheme of the invention, a plurality of bursting elements are placed on the concrete surface of the prefabricated part before the prefabricated part is steamed. When the prefabricated part is heated, the bursting part is heated and bursts, and the impact force generated by bursting forms a hollow surface on the surface of concrete, so that the surface of the prefabricated part forms a rough surface. According to the method, the roughening operation is not needed to be performed manually by an operator, and the forming mode of the rough surface is simple and reliable, so that the technical scheme of the invention solves the defect that the rough surface on the inner surface of the cavity wall is difficult to process in the prior art.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 shows a schematic view of a preform of the invention with a burst element positioned therein;
FIG. 2 shows a schematic view of the burst member of FIG. 1; and
fig. 3 is a schematic flow chart showing a method for forming a rough surface of a precast concrete member according to the present invention.
Description of reference numerals:
10. a bursting element; 11. a housing; 20. a first concrete precast slab; 30. a second concrete precast slab; 40. and (4) a spraying structure.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
As shown in fig. 1 and 3, the method for forming a rough surface of a concrete precast element according to the present embodiment includes:
step S1: placing a bursting part 10 on the concrete surface of the prefabricated part;
step S2: the prefabricated unit is heated and the bursting element 10 is burst to form a rough surface on the concrete surface of the prefabricated unit.
With the technical solution of this embodiment, a plurality of bursting elements 10 are placed on the concrete surface of the prefabricated member before the prefabricated member is steamed. When the prefabricated part is heated, the bursting part 10 is heated and bursts, and the impact force generated by bursting forms a crater surface on the concrete surface, so that the surface of the prefabricated part forms a rough surface. According to the method, the roughening operation is not needed to be performed manually by an operator, and the forming mode of the rough surface is simple and reliable, so that the technical scheme of the invention solves the defect that the rough surface on the inner surface of the cavity wall is difficult to process in the prior art.
Step S1 is performed before the prefabricated part is subjected to the steam curing step. The concrete is not formed before the precast member is steamed, so that the surface of the concrete is burst by the burst member 10 to form a hollow surface after impact force. In the subsequent steam curing process, the concrete is solidified and formed, so that the rough surface structure is formed on the hollow surface.
Further, it will be understood by those skilled in the art that the roughness of the rough surface of the prefabricated unit can be adjusted by adjusting the number of burst elements 10 placed on the concrete surface of the prefabricated unit. Meanwhile, the structure of the bursting part 10 is adjusted, so that the magnitude of impact force generated when the bursting part 10 bursts is controlled, and a hollow structure can be formed on the surface of the concrete while the impact force does not influence embedded parts (steel mesh sheets and steel reinforcement cages) in the concrete.
In the embodiment of the present invention, as shown in fig. 2, the bursting element 10 comprises a casing 11, and when the bursting element 10 is heated, the medium in the casing 11 expands to burst the casing 11. Specifically, when the preform is heated, the outer shell 11 of the bursting element 10 is also heated at the same time. The medium in the shell 11 expands when heated, and then the shell 11 bursts, and the shell 11 bursts to generate impact force, and a hollow structure is formed on the surface of the concrete. Further, it will be understood by those skilled in the art that the impact force generated when the housing 11 bursts can be controlled by adjusting the material and wall thickness of the housing 11.
Preferably, the material of the housing 11 in this embodiment is ice. Specifically, when the prefabricated member is heated, the medium inside the housing 11 is heated. When the pressure inside the housing 11 rises to a certain extent, the iced housing 11 bursts and forms an impact force. During the subsequent heating process, the iced shell 11 melts and volatilizes. Since water does not affect the quality of the concrete at all, the outer shell 11 does not affect the quality of the subsequent prefabricated parts. Of course, the shell 11 may be made of other materials that do not affect the quality of the concrete, and preferably, the shell is selected to be capable of being heated and volatilized or self-volatilized after bursting.
Preferably, the housing 11 is spherical in shape, thereby facilitating manufacturing. Of course, the housing 11 may alternatively have other shapes.
Preferably, the medium in the housing 11 is a gas or a liquid in this embodiment. Specifically, when the medium in the housing 11 is gas, the gas inside the housing 11 expands when the housing 11 is heated, and the pressure inside the housing 11 increases. When the pressure inside the housing 11 increases to a certain value, the housing 11 bursts, thereby generating impact force to the surface of the concrete. Accordingly, when the medium in the housing 11 is liquid, the liquid inside the housing 11 is heated to volatilize and expand, thereby increasing the pressure inside the housing 11. The person skilled in the art can select a gas with a higher expansion ratio or a liquid with a lower volatilization temperature as the medium in the housing 11 according to actual needs.
Preferably, the medium inside the housing 11 is hydrogen. Of course, the above-mentioned medium can be selected as other gases as long as the subsequent production process and the final quality of the prefabricated parts are not affected.
Further, in the present embodiment, step S1 is performed between the material distribution step and the curing step. Specifically, in the distributing process, the distributor pours the mixed concrete into the mold table, and before the curing process, the concrete is in a wet and unformed state. Step S1 is performed between the distributing step and the curing step so that when the bursting element 10 bursts, a dimpled structure is formed on the surface of the wet concrete and after the subsequent precast member is cured and molded, the dimpled structure forms a rough surface.
Further, in the present embodiment, step S2 is performed during the curing process. Specifically, in the curing step, the precast member needs to be steam-cured at high temperature, and the concrete is molded. In this process, the bursting element 10 is heated together, so that the bursting element 10 bursts between the concrete formations. The impact force generated by the burst element 10 forms a hollow structure on the surface of the concrete, and the hollow structure forms a rough surface of the prefabricated part after the maintenance process is finished.
Of course, step S2 may be performed in another step. For example, a heating step is added before the steam curing step, and the bursting part 10 is simply burst in the heating step, so that the concrete is not molded. After the heating step is completed, the prefabricated part is subjected to a curing step.
As shown in fig. 1, in the solution of the embodiment, the concrete prefabricated element is a cavity wall, and the cavity wall includes a first concrete prefabricated panel 20 and a second concrete prefabricated panel 30 which are oppositely arranged. And further, the bursting elements 10 are interposed between the first concrete prefabricated panel 20 and the second concrete prefabricated panel 30 at step S1. Specifically, the first concrete prefabricated panel 20 and the second concrete prefabricated panel 30 are connected together through a reinforcement cage. By placing the rupture member 10 between the first and second concrete prefabricated panels 20 and 30, it is possible to form a rough surface on the opposite surfaces of the first and second concrete prefabricated panels 20 and 30 when the rupture member 10 is ruptured, thereby enhancing the coupling force between the first and second concrete prefabricated panels 20 and 30 and the subsequent cast-in-place concrete. Preferably, the size of the bursting element 10 is smaller than the distance between the first concrete prefabricated panel 20 and the second concrete prefabricated panel 30.
Of course, the concrete precast elements are not limited to the cavity wall. Other prefabricated parts supported by concrete can form a rough surface by adopting the method.
As shown in FIG. 1, in the technical solution of the present embodiment, the bursting elements 10 are injected between the first concrete precast slab 20 and the second concrete precast slab 30 through the injection structure 40 at step S1. Specifically, the spray structure 40 includes a nozzle, a bucket, and a bracket. Wherein, the nozzle is arranged on the bracket, and the storage hopper is connected with the inlet of the nozzle. In the above-described step S1, a plurality of the bursting elements 10 are dumped into the storage hopper, and the nozzle can spray the bursting elements between the first concrete prefabricated panel 20 and the second concrete prefabricated panel 30. The injection power may be high pressure gas, or other power. Further, the above-mentioned injection structure 40 is fixedly disposed. The injection structure 40 is capable of continuously injecting the bursting elements 10 between the first concrete prefabricated panel 20 and the second concrete prefabricated panel 30 and throughout the cavity as the first concrete prefabricated panel 20 and the second concrete prefabricated panel 30 move along with the mold table.
Of course, the above-mentioned bursting elements may be manually arranged between the first concrete prefabricated panel 20 and the second concrete prefabricated panel 30 by an operator.
The embodiment also provides a concrete prefabricated part, and the surface of the concrete prefabricated part is provided with a rough surface by the rough surface forming method. Preferably, the concrete precast element is a cavity wall.
According to the above description, the rough surface forming method of the concrete precast element in the present embodiment has the following advantages:
1. the bottleneck that the napping process of the hollow cavity wall in the production line is difficult is solved;
2. heavy labor of workers at the napping station is liberated;
3. is beneficial to improving the automation level of the production line.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (10)
1. A rough surface forming method of a concrete prefabricated part is characterized by comprising the following steps:
step S1: placing a bursting part (10) on the concrete surface of the prefabricated part;
step S2: heating the prefabricated component and causing the bursting element (10) to burst so as to form a roughened surface on the concrete surface of the prefabricated component.
2. The matte finishing method according to claim 1, wherein the bursting element (10) comprises a casing (11), and wherein upon heating of the bursting element (10), the medium inside the casing (11) expands to burst the casing (11).
3. The method for forming a roughened surface according to claim 2, wherein the material of the casing (11) is ice.
4. The method for forming a roughened surface according to claim 2, wherein the medium in the casing (11) is a gas or a liquid.
5. The method for forming a roughened surface according to claim 4, wherein the medium in the casing (11) is hydrogen gas.
6. The forming method of rough surface according to any of claims 1 to 5, wherein step S1 is performed between a material distribution step and a curing step.
7. The method of any one of claims 1 to 5, wherein the step S2 is performed during a curing process.
8. The mat surface forming method as claimed in claim 1, wherein the concrete precast member is a cavity wall including a first concrete precast panel (20) and a second concrete precast panel (30) which are oppositely disposed, and the bursting element (10) is interposed between the first concrete precast panel (20) and the second concrete precast panel (30) at the step S1.
9. The mat surface forming method as set forth in claim 8, wherein the bursting element (10) is injected between the first concrete prefabricated panel (20) and the second concrete prefabricated panel (30) through an injection structure (40) at the step S1.
10. A precast concrete member characterized in that a surface of the precast concrete member is formed into a rough surface by the rough surface molding method according to any one of claims 1 to 9.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110362263.7A CN112936535A (en) | 2021-04-02 | 2021-04-02 | Concrete prefabricated part and method for forming rough surface thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110362263.7A CN112936535A (en) | 2021-04-02 | 2021-04-02 | Concrete prefabricated part and method for forming rough surface thereof |
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| CN112936535A true CN112936535A (en) | 2021-06-11 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878697A (en) * | 2021-09-29 | 2022-01-04 | 阜阳晶宫绿建节能建筑有限责任公司 | Surface treatment device for processing concrete prefabricated plate |
| CN115534079A (en) * | 2022-11-02 | 2022-12-30 | 南通吉泰新型建材有限公司 | Rough surface processing apparatus in prefabricated double skin wall |
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| CN1434734A (en) * | 2000-05-18 | 2003-08-06 | 保罗·C·爱德华兹 | Fire retardant delivery system |
| KR100783085B1 (en) * | 2006-08-22 | 2007-12-07 | 주식회사 이노블록 | Manufacture method of concrete block |
| CN111015912A (en) * | 2019-12-25 | 2020-04-17 | 合肥中民筑友智造科技有限公司 | Method for forming rough surface of prefabricated part |
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2021
- 2021-04-02 CN CN202110362263.7A patent/CN112936535A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0319972A2 (en) * | 1987-12-09 | 1989-06-14 | Metten Produktions- Und Handels Gmbh | Process for making and/or for treating concrete blocks |
| CN1434734A (en) * | 2000-05-18 | 2003-08-06 | 保罗·C·爱德华兹 | Fire retardant delivery system |
| KR100783085B1 (en) * | 2006-08-22 | 2007-12-07 | 주식회사 이노블록 | Manufacture method of concrete block |
| CN111015912A (en) * | 2019-12-25 | 2020-04-17 | 合肥中民筑友智造科技有限公司 | Method for forming rough surface of prefabricated part |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878697A (en) * | 2021-09-29 | 2022-01-04 | 阜阳晶宫绿建节能建筑有限责任公司 | Surface treatment device for processing concrete prefabricated plate |
| CN113878697B (en) * | 2021-09-29 | 2023-09-29 | 阜阳晶宫绿建节能建筑有限责任公司 | Surface treatment device for concrete precast slab processing |
| CN115534079A (en) * | 2022-11-02 | 2022-12-30 | 南通吉泰新型建材有限公司 | Rough surface processing apparatus in prefabricated double skin wall |
| CN115534079B (en) * | 2022-11-02 | 2023-10-13 | 南通吉泰新型建材有限公司 | Rough surface treatment device in prefabricated double-skin wall |
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Effective date of registration: 20221013 Address after: 519031 Room 105, No. 6, Baohua Road, Hengqin New District, Zhuhai City, Guangdong Province - 67054 (centralized office area) Applicant after: Zhuhai Zhuxiang Cloud Technology Co.,Ltd. Address before: No.129, south section of Huangxing Avenue, Langli street, Changsha Economic and Technological Development Zone, Changsha City, Hunan Province Applicant before: Hunan Sany Building Co.,Ltd. |
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Application publication date: 20210611 |