Water permeable brick with long-acting water permeability

Abstract

The utility model belongs to the technical field of water permeable bricks, and particularly relates to a water permeable brick with long-acting water permeability, which comprises a surface layer, a middle layer and a bottom layer which are of an integrated structure, the surface layer is of a micro-void structure with the pore size of 0.5-1mm, the middle layer is of a medium-void structure with the pore size of 2-3mm, and the bottom layer is of a large-void structure with the pore size of 4-6mm, the surface of the surface layer is sprayed with a super-hydrophobic coating so as to quickly drain water and silt, inhibit moss growth and contribute to skid resistance, the bottom of the bottom layer is further provided with drainage grooves used for quickly draining water to an underground drainage system, the two sides of the brick body are provided with protruding structures, and the protruding structures are arranged in an up-and-down staggered mode, so that the anti-skid effect is achieved. A plurality of brick bodies can be spliced in a left-and-right parallel mode or a left-and-right staggered mode, the brick bodies are more stable after being laid and are not prone to upwarp after being rolled by vehicles and the like, maintenance cost is reduced, the white face of the water permeable brick is provided with dense holes, the super-hydrophobic coating is sprayed, water and silt can be rapidly separated, the holes are prevented from being blocked, and the brick bodies are stable in laying and not prone to upwarp.

Description

Technical Field

[0001] This utility model belongs to the field of permeable brick technology, specifically a permeable brick with long-lasting permeability. Background Technology

[0002] Permeable bricks, as an eco-friendly paving material, are widely used in municipal engineering and landscaping due to their advantages such as rainwater infiltration, groundwater replenishment, and mitigation of the urban heat island effect. However, conventional permeable bricks in existing technologies still have some problems:

[0003] Existing permeable bricks generally suffer from low compressive strength. When subjected to vehicle loads or heavy impacts, the bricks are prone to cracking or breakage, affecting the durability and service life of the paved road surface.

[0004] During use, the porous structure of permeable bricks is easily invaded and retained by fine particles such as mud, sand, and dust, leading to pore blockage. Over time, the permeability of the bricks decreases significantly, severely affecting their continuous permeability and even causing them to lose their permeability altogether.

[0005] Under the influence of factors such as temperature and humidity changes, freeze-thaw cycles, or foundation settlement, some permeable bricks are prone to localized warping, bulging, or displacement. This not only damages the flatness and aesthetics of the paved surface but also poses safety hazards and increases subsequent maintenance costs.

[0006] Therefore, there is a need for a permeable brick with higher strength, longer permeability, and more stable installation. Utility Model Content

[0007] Based on this, this solution provides permeable bricks with long-lasting permeability, featuring a three-layer structure with different pore sizes. The surface layer is treated with superhydrophobicity to quickly remove water droplets and sediment, preventing clogging and maintaining long-lasting permeability. The middle layer is reinforced with steel slag, and the bottom layer is reinforced with fibers, thereby improving the overall strength of the brick.

[0008] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0009] A permeable brick with long-lasting permeability includes: a brick body, wherein the brick body consists of a surface layer, a middle layer, and a bottom layer from top to bottom. The surface layer is a nano-silica mixed layer, the middle layer is a steel slag reinforced layer, and the bottom layer is a fiber reinforced layer. The surface layer has a microporous structure with a pore size of 0.5-1 mm, the middle layer has a medium-porous structure with a pore size of 2-3 mm, and the bottom layer has a large-pore structure with a pore size of 4-6 mm. The surface of the surface layer is sprayed with a superhydrophobic coating to facilitate rapid drainage of water and sediment, inhibit moss growth, and help prevent slippage. The bottom surface of the bottom layer has drainage grooves for rapid drainage to the underground drainage system.

[0010] Optionally, in one embodiment of the present invention, the brick body has protruding structures on both sides.

[0011] Optionally, in one embodiment of the present invention, the protruding structure is located at both ends of the side of the brick body. The protruding structure includes an upper protrusion and a lower protrusion, which are staggered vertically, so that multiple brick bodies can be spliced ​​horizontally in parallel or staggered horizontally.

[0012] Optionally, in one embodiment of the present invention, the thickness of the upper protrusion is the sum of the thicknesses of the surface layer and the middle layer, and the thickness of the lower protrusion is the same as that of the bottom layer.

[0013] Optionally, in one embodiment of the present invention, the surface layer is provided with an anti-slip structure, the height of which is 2mm, to improve the anti-slip effect and provide comfortable footing.

[0014] Optionally, in one embodiment of the present invention, the drainage groove is either a trapezoidal structure or an arc-shaped structure, and the drainage groove is opened along the length direction of the brick.

[0015] Optionally, in one embodiment of the present invention, the protruding structures located on both sides of the brick are arranged in opposite directions.

[0016] Optionally, in one embodiment of the present invention, the side of the brick is provided with a wavy structure to assist in surface drainage.

[0017] Optionally, in one embodiment of the present invention, a first transition layer is provided between the top layer and the middle layer, the pore size of the first transition layer being 1-1.5 mm, and a second transition layer is provided between the middle layer and the bottom layer, the pore size of the second transition layer being 3-3.5 mm.

[0018] Compared with the prior art, the permeable brick with long-lasting permeability provided by this utility model has the following characteristics:

[0019] It consists of a surface layer, a first transition layer, a middle layer, a second transition layer, and a bottom layer, forming a pore gradient that guides water flow to infiltrate layer by layer while minimizing clogging.

[0020] Trapezoidal or arc-shaped drainage grooves connect directly to the large pores at the bottom, efficiently guiding the collected water flow into the underground drainage system and preventing water accumulation.

[0021] The sides feature a wave-shaped structure that can be spliced ​​together to form straight drainage holes, providing an overflow channel during extreme rainstorms or when the surface layer is overloaded, thereby enhancing the overall drainage capacity and resistance to sudden heavy rainfall.

[0022] The superhydrophobic coating can quickly roll off and carry away surface mud and sand, reducing the intrusion of mud and sand into the pores, while also reducing the possibility of biofouling and growth of moss, algae and other organisms, and inhibiting biofouling.

[0023] The surface layer has multiple strip-shaped protrusions to provide mechanical friction resistance and improve the grip of the feet or tires.

[0024] The middle layer is reinforced with steel slag to improve the compressive strength and wear resistance of the bricks and enhance their load-bearing capacity.

[0025] The addition of fibers to the bottom layer improves tensile strength, impact resistance, and freeze-thaw cycle resistance, reducing the risk of cracking under load and temperature changes.

[0026] The brick body has staggered protrusions on both sides to ensure a tight and stable connection after splicing, preventing horizontal displacement or warping of the brick body under load. Attached Figure Description

[0027] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a side view of the permeable brick with long-lasting permeability according to Embodiment 1 of this utility model.

[0029] Figure 2 This is a top view schematic diagram of the permeable brick with long-lasting permeability according to Embodiment 1 of this utility model;

[0030] Figure 3 This is a schematic diagram of the bottom structure of a permeable brick with long-lasting permeability according to Embodiment 1 of this utility model;

[0031] Reference numerals: Surface layer 1, strip protrusion 101, middle layer 2, bottom layer 3, drainage groove 301, first transition layer 4, second transition layer 5, protruding structure 6, wavy structure 7. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other. The technical solutions of the present invention will be further described below with reference to the accompanying drawings of the embodiments. The present invention is not limited to the specific embodiments described below.

[0033] It should be understood that the same or similar reference numerals in the accompanying drawings of the embodiments correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "front," "rear," "left," "right," "top," and "bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms describing positional relationships in the accompanying drawings are for illustrative purposes only and should not be construed as limiting this patent. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0034] Example 1

[0035] Existing permeable bricks are not strong enough and are prone to warping or breaking after being run over by light vehicles, posing a certain safety hazard. After a period of use, mud and sand can easily clog the pores, affecting the permeability. Therefore, a permeable brick with long-lasting permeability has been designed, and the specific solution is as follows:

[0036] like Figure 1-2 As shown, the permeable brick with long-lasting permeability includes: a brick body, which consists of a surface layer 1, a middle layer 2, and a bottom layer 3 from top to bottom. The surface layer 1 is a nano-silica mixed layer, the middle layer 2 is a steel slag reinforced layer, and the bottom layer 3 is a fiber reinforced layer. The surface layer 1 has a microporous structure with a pore size of 0.5-1mm, the middle layer 2 has a medium-porous structure with a pore size of 2-3mm, and the bottom layer 3 has a large-pore structure with a pore size of 4-6mm. The surface of the surface layer 1 is sprayed with a superhydrophobic coating to facilitate rapid drainage of water and sediment, inhibit moss growth, and help prevent slippage. The bottom surface of the bottom layer 3 has a drainage groove 301 for rapid drainage to the underground drainage system.

[0037] In this embodiment, the top layer 1 is a mixture of recycled fine aggregate with a particle size of 0.3-1mm and nano-silica; the middle layer 2 is a reinforcing layer of recycled brick aggregate with a particle size of 5-8mm and steel slag particles with a particle size of 3-5mm, wherein the recycled aggregate accounts for 60%, and the addition of steel slag particles enhances the stability of the skeleton; the bottom layer 3 is a fiber-reinforced layer of coarse aggregate with a particle size of 8-10mm and basalt fiber, with a fiber length of 12-24mm and a dosage of 0.5-1.5kg / m³. 3 .

[0038] The brick body has protruding structures 6 on both sides. The protruding structures 6 are located at both ends of the side of the brick body. The protruding structures 6 include an upper protrusion and a lower protrusion. The upper protrusion and the lower protrusion are staggered vertically, so that multiple brick bodies can be spliced ​​horizontally in parallel or horizontally in staggered ways. In this embodiment, the upper protrusion and the lower protrusion are trapezoidal structures. The thickness of the upper protrusion is the sum of the thicknesses of the surface layer 1 and the middle layer 2. The thickness of the lower protrusion is the same as that of the bottom layer 3. The surface layer 1 and the middle layer 2 cover the upper protrusion, and the bottom layer 3 covers the lower protrusion.

[0039] The surface layer 1 is provided with an anti-slip structure with a height of 2mm to improve the anti-slip effect and provide comfortable footing. In this embodiment, the anti-slip structure consists of multiple strip-shaped protrusions 101, which are integrated with the surface layer 1. In other solutions, the anti-slip structure is a cross-grid or wave-shaped design to provide multi-directional anti-slip.

[0040] The drainage groove 301 can be either trapezoidal or arc-shaped. The drainage groove 301 is opened along the length of the brick. In this embodiment, multiple trapezoidal drainage grooves 301 are opened on the bottom surface of the bottom layer 3. The groove depth of the drainage groove 301 is 5-8mm and the groove width is 10-15mm.

[0041] The protruding structures 6 on both sides of the brick are set in opposite directions, that is, the upper protrusion and the lower protrusion are set in opposite positions, so that two adjacent bricks can be spliced ​​and glued together.

[0042] The side of the brick is provided with a wave-shaped structure 7 to assist the drainage of the surface layer 1. When the bricks are spliced ​​together, the wave-shaped structure 7 can form a straight drainage hole at the joint. When the water seepage load of the surface layer 1 exceeds the limit, the drainage hole can be used to assist drainage. The wave-shaped structure 7 is located on the side of the area between the surface layer 1 and the first transition layer 4 to ensure that it can effectively collect and guide the overloaded water flow of the surface layer 1.

[0043] A first transition layer 4 is provided between the top layer 1 and the middle layer 2, and the pore size of the first transition layer 4 is 1-1.5mm. A second transition layer 5 is provided between the middle layer 2 and the bottom layer 3, and the pore size of the second transition layer 5 is 3-3.5mm.

[0044] In this embodiment, the thickness of the top layer 1 is 20-25mm to ensure the water permeability of the top layer 1 while taking cost into consideration; the thickness of the first transition layer 4 is 10-15mm, the thickness of the middle layer 2 is 35-40mm, the thickness of the second transition layer 5 is 10-15mm, and the thickness of the bottom layer 3 is 40-50mm.

[0045] The permeable bricks in this design consist of a surface layer 1, a first transition layer 4, a middle layer 2, a second transition layer 5, and a bottom layer 3, forming a fine pore gradient. This effectively guides water flow to infiltrate rapidly layer by layer while minimizing the risk of clogging.

[0046] The fine porous surface layer 1 intercepts most of the mud and sand, preventing it from entering the lower layer and clogging larger pores.

[0047] Trapezoidal or arc-shaped drainage grooves 301 directly connect to the three large pores at the bottom layer, efficiently guiding the collected water flow into the underground drainage system and preventing water accumulation.

[0048] The straight drainage holes formed by the side wave-shaped structure 7 during splicing provide an overflow channel in case of extreme rainstorms or excessive load on the surface layer 1, enhancing the overall drainage capacity and resistance to instantaneous heavy rainfall.

[0049] The superhydrophobic coating makes it difficult for water droplets to stay, allowing them to quickly roll off and carry away surface sediment, reducing sediment intrusion into pores and decreasing the likelihood of moss, algae, and other organisms attaching and growing, thus effectively inhibiting biological blockage.

[0050] The strip-shaped protrusions 101 provide direct mechanical friction resistance, improving grip on the feet or tires.

[0051] By using steel slag reinforcement, the overall compressive strength and wear resistance of the bricks are improved, thereby increasing their load-bearing capacity.

[0052] The addition of fibers to the bottom layer 3 improves tensile strength, impact resistance, and freeze-thaw cycle resistance, reducing the risk of cracking of the bottom layer 3 under load and temperature changes.

[0053] The staggered protruding structures 6 on both sides allow the bricks to be pieced together like a mosaic. Figure 1 This allows for parallel or staggered splicing to meet the needs of different paving patterns. The protruding structure 6 adopts a tenon design to ensure a tight and stable connection after splicing, preventing horizontal displacement or warping of the bricks under load.

[0054] Example 2

[0055] In this embodiment, the structure of the permeable brick is basically the same as that of embodiment 1. The difference is that the drainage groove 301 at the bottom of the bottom layer 3 is a grid structure, which enables it to achieve longitudinal and transverse drainage.

[0056] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A water permeable brick having a long-term water permeability, characterized by, Include: The brick is sequentially from top to bottom surface layer, middle layer and bottom layer, the surface layer is nano silica mixed layer, the middle layer is steel slag reinforced layer, the bottom layer is fiber reinforced layer, the surface layer is micro void structure, the pore size is 0.5-1mm, the middle layer is hollow void structure, the pore size is 2-3mm, the bottom layer is large pore structure, the pore size is 4-6mm, the surface of the surface layer is sprayed with super hydrophobic coating, so as to facilitate rapid hydrophobic and silt, inhibit moss growth, help to prevent skid, the bottom surface of the bottom layer is provided with drainage groove, for rapid drainage to underground drainage system.

2. The water permeable brick having long-term water permeability according to claim 1, wherein The two sides of the brick are provided with convex structures.

3. The water permeable brick having long-term water permeability according to claim 2, wherein The convex structures are located at both ends of the side of the brick, the convex structures include upper convex parts and lower convex parts, the upper convex parts and the lower convex parts are staggered up and down, so that a plurality of bricks can be parallelly connected or staggered connected.

4. The water permeable brick having long-term water permeability according to claim 3, wherein The thickness of the upper convex part is the thickness of the thickness of the surface layer and the middle layer, the thickness of the lower convex part is the same as that of the bottom layer.

5. The water permeable brick having long-term water permeability according to claim 1, wherein The surface layer is provided with anti-skid structure, the height of the anti-skid structure is 2mm, so as to improve the anti-skid effect and comfortable tread.

6. The water permeable brick having long-term water permeability according to claim 1, wherein The drainage groove is trapezoidal structure or arc structure, the drainage groove is provided along the length direction of the brick.

7. The water permeable brick having long-term water permeability according to claim 2, wherein The convex structures on both sides of the brick are oppositely arranged.

8. The water permeable brick having long-term water permeability according to claim 1, wherein The side of the brick is provided with wave-shaped structure to assist the surface layer to drain.

9. The water permeable brick having long-term water permeability according to claim 1, wherein The first transition layer is arranged between the surface layer and the middle layer, the pore size of the first transition layer is 1-1.5mm, the second transition layer is arranged between the middle layer and the bottom layer, the pore size of the second transition layer is 3-3.5mm.

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