Fiber reinforced cement panel for external walls

Abstract

The utility model relates to cement flat plate technical field, especially a fibre reinforced cement flat plate for outer wall, including lower base plate, the lower base plate's upper end left part and upper end right part have opened lower sawtooth slot, the upper end middle part of lower base plate is provided with anti -crack reinforcing layer structure, the upper end of anti -crack reinforcing layer structure is provided with weather -resistant protective finish layer subassembly, weather -resistant protective finish layer subassembly's upper end is fixedly connected with weather -resistant base plate. The utility model discloses a fibre reinforced cement flat plate for outer wall, through the synergic design of lower base plate, anti -crack reinforcing layer structure, elastic buffer transition subassembly, weather -resistant protective finish layer subassembly and weather -resistant base plate, realize accurate connection, effective anti -crack, buffer stress, have the function such as weight reduction, heat -insulation, protection, anti -crack simultaneously, significantly improved the structure stability, weather resistance and comprehensive performance of fibre reinforced cement flat plate for outer wall, prolongs the life.

Description

Technical Field

[0001] This utility model relates to the field of cement flat plate technology, and in particular to a fiber-reinforced cement flat plate for exterior walls. Background Technology

[0002] Fiber-reinforced cement flat panels are a new type of building material made of cement as the base material, mixed with fibers such as cellulose, glass fiber, and steel fiber, as well as aggregates. They are widely used in the field of exterior walls. However, with the increasing requirements of the construction industry for safety, durability, and green and low-carbon features, their market application is gradually expanding due to their performance and cost advantages. However, cement flat panels also have performance shortcomings in complex environments or long-term use. First, although they are fiber-reinforced, if the proportions are not reasonable or the construction is improper, the panels are prone to micro-cracks due to temperature changes and foundation settlement, which can lead to water seepage or structural damage. Second, long-term exposure to environments such as ultraviolet rays, acid rain, and salt spray can cause the surface to easily powder and fade, and the bonding force between the fibers and the cement matrix will decrease, resulting in a decrease in strength. Utility Model Content

[0003] The main objective of this invention is to provide a fiber-reinforced cement flat plate for exterior walls, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A fiber-reinforced cement board for exterior walls includes a lower substrate, with a serrated slot at the upper left and upper right of the lower substrate, a crack-resistant reinforcing layer structure at the upper middle of the lower substrate, a weather-resistant protective finishing layer assembly at the upper end of the crack-resistant reinforcing layer structure, and a weather-resistant substrate fixedly connected to the upper end of the weather-resistant protective finishing layer assembly.

[0006] Preferably, the crack-resistant reinforcing layer structure includes a vertical fiber mesh grid, the lower end of which is fixedly connected to the lower substrate, and a horizontal fiber mesh grid is fixedly connected to the upper end of which. The left and right ends of the vertical and horizontal fiber mesh grids are both fixedly connected to serrated blocks, and an elastic buffer transition component is fixedly connected to the upper end of the horizontal fiber mesh grid.

[0007] By adopting the above technical solutions: vertical and horizontal fiber mesh grids enhance the crack resistance of the flat plate, serrated blocks facilitate installation and fixation, and elastic buffer transition components absorb stress, effectively improving the structural strength and stability of the flat plate, reducing crack generation, and enhancing overall durability.

[0008] Preferably, the two sawtooth blocks correspond to the positions of the two lower sawtooth slots and are sized to match.

[0009] By adopting the above technical solution, the sawtooth block and the lower sawtooth slot cooperate to achieve precise positioning and firm connection, ensure tight installation of the flat plate, enhance the bonding force between the flat plates, prevent displacement, and improve the integrity and reliability of the external wall structure.

[0010] Preferably, the elastic buffer transition component includes a connecting plate, a modified cement elastic layer is fixedly connected to the lower middle part of the connecting plate, and serrated grooves are opened on the lower left and lower right parts of the connecting plate.

[0011] By adopting the above technical solution—a modified cement elastic layer to buffer stress, a connecting plate to provide support, and a serrated groove to assist in installation—external impacts can be mitigated, stress can be dispersed, stress concentration can be avoided, and installation can be facilitated, thus improving the performance of the flat plate.

[0012] Preferably, the two sawtooth slots correspond to the positions of the two lower sawtooth slots and are sized to match.

[0013] By adopting the above technical solution, the two work together to ensure a stable connection between the elastic buffer transition component and the plate, ensuring accurate component installation, enhancing structural stability, ensuring overall coordination of the plate under stress, and improving its resistance to deformation.

[0014] Preferably, the lower end of the modified cement elastic layer is fixedly connected to the upper end of the transverse fiber mesh grid, the area of ​​the connecting plate is equal to the area of ​​the lower substrate, and the connecting plate is fixedly connected to the upper end of the lower substrate.

[0015] By adopting the above technical solution, the modified cement elastic layer absorbs stress, the connecting plate evenly distributes force and provides support, effectively buffering external forces, reducing the risk of damage to the plate, extending its service life, and ensuring the long-term stable use of the plate.

[0016] Preferably, the weather-resistant protective finishing layer component includes a weight-reducing board, the upper end of which is filled with a plurality of honeycomb expanded perlite particles, the upper end of which is coated with a nano-composite coating, the upper end of which is provided with a crack-resistant mortar layer, and the upper end of which is fixedly connected with a carbon resin layer.

[0017] By adopting the above technical solutions: weight-reducing boards reduce weight, honeycomb expanded perlite particles provide thermal insulation, nano-composite coatings provide protection, and crack-resistant mortar and carbon resin layers enhance performance, thus combining multiple functions and improving the overall performance of the exterior wall.

[0018] Preferably, the weight-reducing plate is fixedly connected to the upper end of the connecting plate, a plurality of the honeycomb expanded perlite particles are distributed in a rectangular array, and the carbon resin layer is fixedly connected to the lower end of the weather-resistant substrate.

[0019] By adopting the above technical solution, the weight-reducing panels and other components are interconnected to form a complete protective system, and the honeycomb expanded perlite particles and other components perform their respective functions to achieve the functions of external wall insulation, protection, and crack resistance, thereby improving the overall performance and durability of the external wall.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In this utility model, a high-strength mesh skeleton is constructed by interweaving vertical and horizontal fiber mesh grids, which effectively disperses stress, resists micro-cracks caused by temperature changes and foundation settlement, and improves the crack resistance of the board. The precise cooperation between the sawtooth block and the lower sawtooth slot and sawtooth groove ensures a stable connection of the structure and prevents displacement and loosening after installation. The elastic buffer transition component composed of the modified cement elastic layer and the connecting plate can not only buffer external impacts, absorb stress, and avoid stress concentration, but also uniformly transfer loads and enhance the overall structural stability. The synergy of all components significantly improves the durability and reliability of fiber-reinforced cement flat panels for exterior walls.

[0022] 2. In this utility model, the weight-reducing board reduces the overall weight of the flat panel, lowering the burden of installation and transportation. The honeycomb expanded perlite particles are distributed in an array, providing excellent thermal insulation performance and reducing the impact of thermal expansion and contraction caused by temperature differences. The nano-composite coating forms a dense protective film, effectively resisting erosion from ultraviolet rays, acid rain, and salt spray, preventing surface chalking and fading. The crack-resistant mortar layer enhances the crack resistance of the finishing layer, while the carbon resin layer further improves the overall strength and stability. Through the coordinated use of various components, the weather resistance, thermal insulation, and mechanical properties of the exterior wall panel are comprehensively improved, extending its service life and reducing maintenance costs. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of a fiber-reinforced cement flat panel for exterior walls according to this utility model;

[0024] Figure 2 This is a schematic diagram of the crack-resistant reinforcement layer structure of a fiber-reinforced cement flat plate for exterior walls according to this utility model;

[0025] Figure 3 This is a schematic diagram of the overall structure of an elastic buffer transition component for a fiber-reinforced cement flat panel for exterior walls according to this utility model.

[0026] Figure 4 This is a schematic diagram of the overall structure of a weather-resistant protective finishing layer component for fiber-reinforced cement flat panels for exterior walls according to this utility model.

[0027] In the diagram: 1. Lower substrate; 2. Lower serrated slot; 3. Crack-resistant reinforcing layer structure; 4. Weather-resistant protective finishing layer assembly; 5. Weather-resistant substrate; 31. Vertical fiber mesh grid; 32. Horizontal fiber mesh grid; 33. Serrated block; 34. Elastic buffer transition assembly; 41. Weight-reducing board; 42. Honeycomb expanded perlite particles; 43. Nanocomposite coating; 44. Crack-resistant mortar layer; 45. Carbon resin layer; 341. Connecting plate; 342. Modified cement elastic layer; 343. Serrated slot. Detailed Implementation

[0028] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0029] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Please see Figure 1-4 This utility model provides a technical solution:

[0032] A fiber-reinforced cement board for exterior walls includes a lower substrate 1. The upper left and upper right sides of the lower substrate 1 have lower serrated slots 2. The upper middle part of the lower substrate 1 is provided with a crack-resistant reinforcing layer structure 3. The upper end of the crack-resistant reinforcing layer structure 3 is provided with a weather-resistant protective finishing layer assembly 4. The upper end of the weather-resistant protective finishing layer assembly 4 is fixedly connected to a weather-resistant substrate 5.

[0033] In this embodiment, the crack-resistant reinforcing layer structure 3 includes a vertical fiber mesh grid 31. The lower end of the vertical fiber mesh grid 31 is fixedly connected to the lower substrate 1. A horizontal fiber mesh grid 32 is fixedly connected to the upper end of the vertical fiber mesh grid 31. A serrated block 33 is fixedly connected to the left and right ends of both the vertical fiber mesh grid 31 and the horizontal fiber mesh grid 32. An elastic buffer transition component 34 is fixedly connected to the upper end of the horizontal fiber mesh grid 32. The two serrated blocks 33 correspond to the positions of the two lower serrated slots 2 and are sized to match. The elastic buffer transition component 34 includes a connecting plate 341. A modified cement elastic layer 342 is fixedly connected to the lower middle part of the connecting plate 341. A serrated groove 343 is opened on the lower left and lower right parts of the connecting plate 341. The two serrated grooves 343 correspond to the positions of the two lower serrated slots 2 and match their dimensions. The lower end of the modified cement elastic layer 342 is fixedly connected to the upper end of the transverse fiber mesh grid 32. The area of ​​the connecting plate 341 is equal to the area of ​​the lower substrate 1. The connecting plate 341 is fixedly connected to the upper end of the lower substrate 1.

[0034] The above solution enhances the overall toughness of the cement slab by interweaving vertical fiber mesh grid 31 and horizontal fiber mesh grid 32, disperses stress, and effectively resists micro-cracks caused by factors such as temperature changes and foundation settlement. The precise cooperation between the sawtooth block 33 and the lower sawtooth slot 2, and between the sawtooth groove 343 and the lower sawtooth slot 2, achieves a stable connection and prevents the slab from shifting. The modified cement elastic layer 342 can buffer external impacts and absorb stress. The connecting plate 341 evenly distributes force and provides support. All components work together to make up for the performance shortcomings of the cement slab in complex environments, reduce the risk of water seepage and structural damage, and improve its durability and reliability.

[0035] In this embodiment, the weather-resistant protective finishing layer component 4 includes a weight-reducing plate 41. The upper end of the weight-reducing plate 41 is filled with a plurality of honeycomb expanded perlite particles 42. The upper end of the weight-reducing plate 41 is coated with a nano-composite coating 43. The upper end of the nano-composite coating 43 is provided with a crack-resistant mortar layer 44. The upper end of the crack-resistant mortar layer 44 is fixedly connected to a carbon resin layer 45. The upper end of the weight-reducing plate 41 is fixedly connected to the connecting plate 341. The plurality of honeycomb expanded perlite particles 42 are distributed in a rectangular array. The carbon resin layer 45 is fixedly connected to the lower end of the weather-resistant substrate 5.

[0036] Through the above solutions: the weight-reducing board 41 reduces the overall weight of the flat plate; the honeycomb expanded perlite particles 42 are distributed in an array, effectively providing thermal insulation and reducing the impact of thermal expansion and contraction; the nano-composite coating 43 forms a dense protective film to resist ultraviolet rays, acid rain, and salt spray erosion, preventing surface powdering and fading; the crack-resistant mortar layer 44 enhances crack resistance and avoids cracks caused by environmental factors; the carbon resin layer 45 is connected to the weather-resistant substrate 5, improving the overall strength and stability. The synergistic effect of each part reduces the damage of the environment to the cement flat plate, maintains the bonding force between the fiber and the cement matrix, slows down the strength decay, and extends the service life.

[0037] It should be noted that this utility model is a fiber-reinforced cement flat panel for exterior walls. In use, firstly, the lower substrate 1 serves as the base layer. The lower sawtooth slot 2 precisely matches the sawtooth block 33 in the crack-resistant reinforcement layer structure 3 and the sawtooth groove 343 of the elastic buffer transition component 34 to achieve a stable connection. The grid structure formed by the vertical fiber mesh grid 31 and the horizontal fiber mesh grid 32 disperses the stress caused by temperature changes and foundation settlement, reducing the generation of micro-cracks. The modified cement elastic layer 342 further buffers external impacts. In the weather-resistant protective finishing layer component 4, the weight-reducing board 41 reduces weight, the honeycomb expanded perlite particles 42 provide heat insulation, the nano-composite coating 43 resists erosion by ultraviolet rays and acid rain, the crack-resistant mortar layer 44 enhances crack resistance, the carbon resin layer 45 increases strength, and the uppermost weather-resistant substrate 5 provides additional protection. Therefore, through the synergistic effect of the overall components, the problems of cracks, water seepage, and strength reduction caused by environmental factors are effectively solved, significantly improving the crack resistance, weather resistance, and stability of the flat panel, extending its service life, and demonstrating good practicality and economic benefits.

[0038] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A fiber-reinforced cement flat panel for exterior walls, comprising a lower substrate (1), characterized in that: The lower substrate (1) has a serrated slot (2) on the upper left and upper right sides. The upper middle part of the lower substrate (1) is provided with a crack-resistant reinforcing layer structure (3). The upper end of the crack-resistant reinforcing layer structure (3) is provided with a weather-resistant protective finishing layer assembly (4). The upper end of the weather-resistant protective finishing layer assembly (4) is fixedly connected to a weather-resistant substrate (5). The crack-resistant reinforcing layer structure (3) includes a vertical fiber mesh grid (31), the lower end of which is fixedly connected to the lower substrate (1), and the upper end of which is fixedly connected to a horizontal fiber mesh grid (32). The left and right ends of the vertical fiber mesh grid (31) and the horizontal fiber mesh grid (32) are both fixedly connected to a serrated block (33), and the upper end of the horizontal fiber mesh grid (32) is fixedly connected to an elastic buffer transition component (34).

2. The fiber-reinforced cement flat plate for exterior walls according to claim 1, characterized in that: The two sawtooth blocks (33) correspond to the positions of the two lower sawtooth slots (2) and are sized to match.

3. The fiber-reinforced cement flat plate for exterior walls according to claim 1, characterized in that: The elastic buffer transition component (34) includes a connecting plate (341), a modified cement elastic layer (342) is fixedly connected to the middle of the lower end of the connecting plate (341), and serrated grooves (343) are opened on the lower left and lower right sides of the connecting plate (341).

4. A fiber-reinforced cement flat plate for exterior walls according to claim 3, characterized in that: The two serrated grooves (343) correspond to the positions of the two lower serrated slots (2) and are sized to match.

5. A fiber-reinforced cement flat plate for exterior walls according to claim 3, characterized in that: The lower end of the modified cement elastic layer (342) is fixedly connected to the upper end of the transverse fiber mesh grid (32), the area of ​​the connecting plate (341) is equal to the area of ​​the lower substrate (1), and the upper end of the connecting plate (341) is fixedly connected to the lower substrate (1).

6. A fiber-reinforced cement flat plate for exterior walls according to claim 1, characterized in that: The weather-resistant protective finishing layer component (4) includes a weight-reducing board (41), the upper end of which is filled with a number of honeycomb expanded perlite particles (42), the upper end of which is coated with a nano-composite coating (43), the upper end of which is provided with a crack-resistant mortar layer (44), and the upper end of which is fixedly connected with a carbon resin layer (45).

7. A fiber-reinforced cement flat plate for exterior walls according to claim 6, characterized in that: The weight-reducing plate (41) is fixedly connected to the upper end of the connecting plate (341), and a number of honeycomb expanded perlite particles (42) are distributed in a rectangular array. The carbon resin layer (45) is fixedly connected to the lower end of the weather-resistant substrate (5).

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