Mortar loss prevention device for steel mould net rack for building
By introducing a combination structure of welded steel mesh and geotextile into the steel formwork, the problem of mortar loss was solved, the use of wooden formwork was reduced, costs were lowered, and concrete drying was accelerated.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEBEI CHIJIANG WIRE MESH PRODUCTS CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-01
AI Technical Summary
The existing steel formwork structure results in severe mortar loss, requiring a large amount of wooden building formwork, which increases construction costs and workload.
The structure employs a combination of welded steel mesh, welded diagonal reinforcing bars, positioning clips, foam board, poured concrete, geotextile, and black filament cloth. The addition of geotextile prevents mortar loss and reduces the use of wooden formwork.
It effectively prevents mortar loss, reduces construction costs, increases concrete drying speed, and reduces curing frequency.
Smart Images

Figure CN224186913U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel formwork technology, specifically to a device for preventing mortar loss in steel formwork frames used in construction. Background Technology
[0002] As the use of steel formwork and space frame structures in construction increases, the problem of severe mortar loss caused by these structures has become increasingly prominent. The original steel formwork and space frame structures require the addition of a large amount of wooden formwork, which is labor-intensive, time-consuming, and costly; otherwise, it leads to significant mortar loss. While adding a large amount of wooden formwork can prevent mortar loss, it increases construction costs.
[0003] To address the aforementioned issues, we propose a device for preventing mortar loss in steel formwork structures used in construction. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide a mortar loss prevention device for steel formwork in construction, which can prevent concrete mortar loss, reduce or completely eliminate the use of wooden building formwork, and also reduce construction costs.
[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:
[0006] A mortar loss prevention device for steel formwork mesh in construction includes welded steel mesh, welded diagonal reinforcing bars, positioning clips, foam board, poured concrete, geotextile, and black filament cloth. The inner side of the welded steel mesh is provided with foam board, and the upper and lower sides of the foam board are fixedly connected to the welded steel mesh via positioning clips. The cavity between the foam board and the welded steel mesh is filled with poured concrete. Geotextile is laid on the upper and lower sides of the welded steel mesh, and black filament cloth is laid on the outer sides of the two geotextiles. The welded diagonal reinforcing bars wrap around the entire assembly consisting of the welded steel mesh, positioning clips, foam board, poured concrete, geotextile, and black filament cloth.
[0007] The advantages of this utility model compared with the prior art are as follows:
[0008] 1. This new type of concrete pouring can greatly reduce mortar loss rate and reduce the use of formwork without changing the original structure. This allows for better and faster concrete pouring.
[0009] 2. This new type of construction reduces or completely eliminates the use of wooden building formwork, thereby lowering construction costs.
[0010] 3. This invention incorporates geotextile, which allows concrete to dry faster and reduces the frequency of concrete curing. Attached Figure Description
[0011] Figure 1This is a schematic diagram of the structure of this utility model.
[0012] As shown in the figure: 1. Welded steel mesh; 2. Welded diagonal reinforcing bars; 3. Positioning clips; 4. Foam board; 5. Concrete pouring; 6. Geotextile; 7. Black filament cloth. Detailed Implementation
[0013] In the description of this utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.
[0014] The present invention will now be described in further detail with reference to the accompanying drawings.
[0015] A mortar-prevention device for steel formwork mesh in construction includes a welded steel mesh 1, welded diagonal reinforcing bars 2, positioning clips 3, foam board 4, poured concrete 5, geotextile 6, and black filament cloth 7. The inner side of the welded steel mesh 1 is provided with foam board 4, and the upper and lower sides of foam board 4 are fixedly connected to the welded steel mesh 1 by positioning clips 3. The cavity between foam board 4 and welded steel mesh 1 is filled with poured concrete 5. Geotextile 6 is laid on the upper and lower sides of the welded steel mesh 1, and black filament cloth 7 is laid on the outer side of the two geotextile 6. The welded diagonal reinforcing bars 2 are wrapped around the entire assembly consisting of welded steel mesh 1, positioning clips 3, foam board 4, poured concrete 5, geotextile 6, and black filament cloth 7. The black filament cloth 7 is 80 mesh black filament cloth.
[0016] In the specific implementation of this embodiment:
[0017] This new type of material can prevent concrete mortar loss, reduce or completely eliminate the use of wooden building formwork, and also reduce construction costs. Among them, foam board 4 is a fire-resistant, heat-insulating, and sound-insulating foam board.
[0018] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A device for preventing mortar loss in steel formwork frames used in construction, characterized in that: The assembly includes welded steel mesh (1), welded diagonal reinforcing bars (2), positioning clips (3), foam board (4), poured concrete (5), geotextile (6), and black filament cloth (7). The inner side of the welded steel mesh (1) is provided with foam board (4), and the upper and lower sides of the foam board (4) are fixedly connected to the welded steel mesh (1) through positioning clips (3). The cavity between the foam board (4) and the welded steel mesh (1) is filled with poured concrete (5). After the upper and lower sides of the welded steel mesh (1) are respectively laid with geotextile (6), black filament cloth (7) is laid on the outer side of the two geotextiles (6). The welded diagonal reinforcing bars (2) are wrapped around the entire assembly consisting of welded steel mesh (1), positioning clips (3), foam board (4), poured concrete (5), geotextile (6), and black filament cloth (7).
2. The mortar loss prevention device for steel formwork grid structures in construction according to claim 1, characterized in that: The black silk cloth (7) is 80 mesh black silk cloth.