Recycled aggregate concrete curb

Abstract

The utility model discloses a kind of recycled aggregate concrete kerb, it includes: main structure, reinforcing component and penetration adjusting component.Main structure is made of recycled aggregate concrete, top is provided with recess, bottom is provided with antiskid protrusion, both sides are provided with connecting groove and waterproof coating;Reinforcing component contains reinforcing mesh and fiber bundle, and improve tensile and crack resistance;Penetration adjusting component includes deflector, water storage cavity and drain hole, realize rainwater collection and discharge.The application is optimized design, while using waste concrete resources, significantly improve the strength, durability and functionality of kerb, provide environmental protection efficient solution for urban road construction.

Description

Technical Field

[0001] This utility model relates to the field of building materials and road engineering technology, and in particular to a recycled aggregate concrete curbstone. Background Technology

[0002] In urban road construction, curbs, as important boundary components, are widely used to separate carriageways from sidewalks or green belts. Traditional curbs are mostly made of natural aggregate concrete, whose production process consumes a large amount of natural sand and gravel resources. However, with the continuous increase in construction waste, how to effectively utilize recycled aggregates such as waste concrete has become a research hotspot. The use of recycled aggregate concrete can not only reduce dependence on natural resources but also reduce the problem of construction waste accumulation. Currently, recycled aggregate concrete still has certain limitations in its application. For example, the old cement mortar adhering to the surface of recycled aggregates results in a high water absorption rate, affecting the overall strength and durability of the curbs. Furthermore, existing production processes for processing recycled aggregates are not yet perfect, making it difficult for the performance of the final product to fully meet the requirements of high-standard projects. Therefore, its practical promotion still faces many challenges. Utility Model Content

[0003] The purpose of this utility model is to provide a recycled aggregate concrete curbstone, which solves the problems mentioned in the background art.

[0004] This utility model is implemented as follows: a recycled aggregate concrete curbstone includes a main structure, reinforcing components, and a permeability regulating component, with the specific structure as follows:

[0005] The main structure is rectangular in shape and is made of recycled aggregate concrete. The top of the main structure has a groove that runs through the length of the main structure and has a trapezoidal cross-section. The bottom of the main structure has multiple anti-slip protrusions arranged at intervals. The anti-slip protrusions have rectangular cross-sections and a height of 5mm-10mm. The two sides of the main structure have a first connecting groove and a second connecting groove, both of which are semi-circular and symmetrically distributed along the center line of the main structure. The inner walls of the first connecting groove and the second connecting groove are coated with a waterproof coating with a thickness of 0.5mm-1mm.

[0006] The reinforcing components are located inside the main structure and include a steel mesh and fiber bundles. The steel mesh is made of multiple transverse and longitudinal steel bars welded together. The mesh size of the steel mesh is 50mm×50mm, and the thickness of the steel mesh is 3mm-5mm. The steel mesh is embedded inside the main structure, and the upper surface of the steel mesh is 20mm-30mm away from the top surface of the main structure. The fiber bundles are composed of polypropylene fibers, which are evenly distributed inside the main structure. The length of the fiber bundles is 10mm-15mm, the diameter of the fiber bundles is 0.1mm-0.2mm, and the fiber bundle dosage is 1kg-2kg per cubic meter of concrete.

[0007] The osmosis regulating component is located inside the groove of the main structure. The osmosis regulating component includes a guide plate and a water storage chamber. The guide plate is fixedly installed at the bottom of the groove. The guide plate is made of high-density polyethylene and has a thickness of 2mm-3mm. The upper surface of the guide plate is provided with multiple parallel guide grooves. The width of the guide grooves is 5mm-8mm and the depth of the guide grooves is 2mm-3mm. The water storage chamber is located below the guide plate. The cross-section of the water storage chamber is rectangular. The length of the water storage chamber is the same as the length of the groove, and the height of the water storage chamber is 10mm-15mm. The bottom of the water storage chamber is provided with drainage holes. The diameter of the drainage holes is 5mm-8mm, and the number of drainage holes is 2-3 per meter of length.

[0008] Preferably, a wear-resistant layer is also provided on the top of the main structure. The wear-resistant layer is made of epoxy resin material and has a thickness of 2mm-3mm. The wear-resistant layer is applied to the top surface of the main structure by spraying.

[0009] Preferably, the inner walls of the first connecting groove and the second connecting groove are further provided with sealing gaskets. The sealing gaskets are made of EPDM rubber and have a thickness of 2mm-3mm. The sealing gaskets are fixedly installed on the inner walls of the first connecting groove and the second connecting groove by adhesive.

[0010] Preferably, a filter screen is also installed inside the water storage chamber. The filter screen is made of stainless steel and has a pore size of 1mm-2mm. The filter screen is fixedly installed inside the water storage chamber by bolts.

[0011] Preferably, the upper surface of the deflector is also provided with a reflective strip. The reflective strip is made of glass microspheres and has a width of 10mm-15mm. The reflective strip is fixedly installed on the upper surface of the deflector with an adhesive.

[0012] Preferably, one end of the main structure is provided with a positioning pin and the other end is provided with a positioning hole. The positioning pin and the positioning hole have the same diameter. After the positioning pin is inserted into the positioning hole, it is fixedly connected by bolts.

[0013] The recycled aggregate concrete curbstone provided by this utility model has the following beneficial effects:

[0014] The main structure is constructed using recycled aggregate concrete, making full use of waste concrete resources, reducing reliance on natural sand and gravel, and minimizing construction waste accumulation. The grooves at the top and the anti-slip protrusions at the bottom of the main structure improve drainage performance and enhance friction with the ground, preventing slippage. The first and second connecting grooves, combined with sealing gaskets, effectively prevent rainwater from seeping into the joints between the curb stones, thus improving the overall waterproofing performance of the curb stones.

[0015] The combination of steel mesh and fiber bundles in the reinforcing components significantly improves the tensile strength and crack resistance of recycled aggregate concrete. The precise placement of the steel mesh ensures uniform stress distribution within the main structure, while the incorporation of fiber bundles further improves the microstructure of the concrete, reducing the likelihood of crack propagation.

[0016] The infiltration regulation component, with its guide vane and storage chamber working together, achieves effective rainwater collection and drainage. The guide channels on the guide vane direct rainwater to the storage chamber, where a filter screen provides initial filtration, preventing impurities from clogging the drainage holes. The optimized number and spacing of the drainage holes ensure rapid rainwater drainage, preventing water accumulation. Furthermore, reflective strips on the guide vane improve the visibility of curbs at night, increasing road safety.

[0017] In summary, this utility model, through the organic combination of the main structure, reinforcing components, and permeability regulating components, significantly improves the strength, durability, and functionality of curb stones while making full use of recycled aggregates, providing a more environmentally friendly and efficient solution for urban road construction. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention, showing the cuboid shape of the main structure of the curbstone, the trapezoidal groove at the top, the anti-slip protrusion at the bottom, and the first and second connecting grooves on both sides.

[0019] Figure 2 This is a longitudinal sectional view of the present invention, showing the distribution of the steel mesh and fiber bundles inside the main structure, the location of the guide plate and water storage cavity in the groove, and the drainage hole at the bottom of the water storage cavity.

[0020] Figure 3 This is a cross-sectional structural diagram of the present invention, which focuses on showing the symmetrical distribution of the first and second connecting grooves, the position of the waterproof coating, and the wear-resistant layer covering the top surface of the main structure.

[0021] The attached figures are labeled as follows:

[0022] 1. Main structure; 2. Groove; 3. Anti-slip protrusion; 4. First connecting groove; 5. Second connecting groove; 6. Waterproof coating; 7. Steel mesh frame; 8. Fiber bundle; 9. Guide plate; 10. Water storage cavity; 11. Drainage hole; 12. Wear-resistant layer. Detailed Implementation

[0023] This utility model provides a recycled aggregate concrete curbstone, which is described below in conjunction with the appendix. Figure 1 To be continued Figure 3 The specific embodiments of this utility model are described in detail below. In this embodiment, the main structure 1 of the curbstone is rectangular in shape, with a groove 2 at the top, multiple anti-slip protrusions 3 at the bottom, and a first connecting groove 4 and a second connecting groove 5 on both sides. Internally, it includes a steel mesh frame 7, fiber bundles 8, and a guide plate 9 and a water storage chamber 10 from the permeability regulation component. These components, through specific positional relationships and connection methods, collectively constitute the overall structure of the curbstone.

[0024] The main structure 1 is constructed from recycled aggregate concrete, and its rectangular shape can be adjusted according to road design requirements in practical applications. A groove 2 runs through the top of the main structure 1 along its length, with a trapezoidal cross-section. The depth of the groove 2 is designed to be 10mm-20mm according to drainage requirements. The inner wall of the groove 2 forms a smooth transition with the top surface of the main structure 1 to prevent water accumulation. Anti-slip protrusions 3 are spaced apart at the bottom of the main structure 1. Each anti-slip protrusion 3 has a rectangular cross-section and a height of 5mm-10mm, with a spacing of 20mm-30mm between adjacent protrusions. The upper surface of the anti-slip protrusions 3 is roughened to enhance friction with the ground. The first connecting groove 4 and the second connecting groove 5 on both sides of the main structure 1 are semi-circular with an inner diameter of 20mm-30mm. Their centerlines are symmetrically distributed, and their inner walls are coated with a 0.5mm-1mm thick waterproof coating 6, which is made of polyurethane material. The inner walls of the first connecting groove 4 and the second connecting groove 5 are also provided with sealing gaskets. The sealing gaskets are made of EPDM rubber with a thickness of 2mm-3mm and are fixed to the inner wall of the grooves with adhesive to ensure the sealing performance of the connection.

[0025] The main structure 1 is internally reinforced with reinforcing components, including a steel mesh 7 and fiber bundles 8. The steel mesh 7 is constructed from multiple interlaced transverse and longitudinal steel bars welded together, with a mesh size of 50mm × 50mm and an overall thickness of 3mm-5mm. Located inside the main structure 1, the upper surface of the steel mesh 7 is 20mm-30mm from the top surface of the main structure 1, and the lower surface is 15mm-25mm from the bottom surface, ensuring uniform stress distribution within the main structure 1. The fiber bundles 8 are composed of polypropylene fibers, with a length of 10mm-15mm and a diameter of 0.1mm-0.2mm, added at a dosage of 1kg-2kg per cubic meter of concrete. The fiber bundles 8 are evenly distributed within the main structure 1 and are added along with the aggregate during concrete mixing to ensure uniform dispersion within the concrete.

[0026] The main structure 1 has a groove 2 at the top containing an infiltration regulating component, which includes a guide plate 9 and a water storage chamber 10. The guide plate 9, made of high-density polyethylene and 2mm-3mm thick, is fixedly installed at the bottom of the groove 2. Multiple parallel guide grooves, 5mm-8mm wide and 2mm-3mm deep, are arranged on the upper surface of the guide plate 9, with a spacing of 10mm-15mm between them. The water storage chamber 10 is located below the guide plate 9, with a rectangular cross-section, the same length as the groove 2, and a height of 10mm-15mm. Drainage holes 11, 5mm-8mm in diameter, are located at the bottom of the water storage chamber 10, with 2-3 holes per meter of length. The position of the drainage holes 11 is optimized to ensure rapid drainage of rainwater. A filter screen, made of stainless steel and with a pore size of 1mm-2mm, is also installed inside the water storage chamber 10 using bolts to intercept impurities in the rainwater. The upper surface of the deflector 9 is also provided with reflective strips. The reflective strips are made of glass microbeads and are 10mm-15mm wide. They are fixed to the upper surface of the deflector 9 with adhesive to improve nighttime visibility.

[0027] One end of the main structure 1 is equipped with a positioning pin, and the other end is equipped with a positioning hole. The positioning pin and the positioning hole have the same diameter, both 10mm-15mm. After the positioning pin is inserted into the positioning hole, it is fixed by bolts, thereby achieving precise alignment between multiple curb stones. The top of the main structure 1 is also equipped with a wear-resistant layer 12, which is made of epoxy resin material and has a thickness of 2mm-3mm. It is applied to the top surface of the main structure 1 by spraying to enhance the wear resistance of the curb stones.

[0028] In practical applications, the curbstone of this utility model achieves its function in the following ways. First, the main structure 1 is made of recycled aggregate concrete. After being crushed, screened, and washed, the recycled aggregate is mixed with cement, sand, and other materials in a certain proportion to form concrete that meets the strength requirements. The addition of the steel mesh 7 and fiber bundles 8 significantly improves the tensile strength and crack resistance of the concrete, making the curbstone stable when subjected to vehicle pressure and environmental erosion. Second, the anti-slip protrusions 3 at the bottom of the main structure 1 generate a large friction force when in contact with the ground, preventing the curbstone from slipping due to external forces. The design of the first connecting groove 4 and the second connecting groove 5, combined with the use of sealing gaskets, effectively prevents rainwater from seeping into the joints between the curbstones, thereby improving the overall waterproof performance. In addition, the guide plate 9 and the water storage chamber 10 in the groove 2 work together to achieve effective collection and discharge of rainwater. After rainwater flows from the groove 2 into the guide groove of the guide plate 9, it is guided to the water storage chamber 10. The filter screen in the water storage chamber 10 performs preliminary filtration of the rainwater to prevent impurities from clogging the drainage holes 11. The number and spacing of the drainage holes 11 have been optimized to ensure that rainwater can be discharged quickly and to prevent water accumulation. Finally, the reflective strips on the guide plate 9 can improve the visibility of the curb at night and increase road safety.

[0029] In the actual construction process of this utility model, multiple curb stones are first placed according to the designed positions and precisely connected using positioning pins and positioning holes. Then, sealing material is filled into the first connecting groove 4 and the second connecting groove 5 to further enhance the sealing performance of the connection. After construction, the curb stone effectively separates the roadway from the sidewalk or green belt, while also possessing good drainage performance and durability, meeting the requirements of high-standard projects.

[0030] To enable those skilled in the art to fully understand and implement this utility model, the following supplementary explanation of the specific implementation principle of this utility model is provided in conjunction with a specific application scenario.

[0031] First, during the installation of the curb stones, workers place multiple curb stones according to the designed positions and precisely align them using positioning pins at one end of the main structure 1 and positioning holes at the other. The positioning pins and positioning holes have the same diameter, 10mm-15mm, and are secured with bolts after insertion, ensuring a seamless connection between the multiple curb stones. At this point, the design of the first connecting groove 4 and the second connecting groove 5 plays a crucial role. Workers fill the first connecting groove 4 and the second connecting groove 5 with sealing material to further enhance the sealing performance of the connection. The sealing gasket is made of EPDM rubber, with a thickness of 2mm-3mm, and is fixed to the inner wall of the groove with adhesive, effectively preventing rainwater from seeping into the connection between the curb stones, thereby improving the overall waterproof performance.

[0032] Secondly, after the curbstone is put into use, rainwater will flow into the guide channel of the guide plate 9 along the groove 2 at the top of the main structure 1. The guide channel is 5mm-8mm wide, 2mm-3mm deep, and the spacing between the guide channels is 10mm-15mm. These parameters are optimized to ensure smooth rainwater flow. The guide plate 9 is made of high-density polyethylene with a thickness of 2mm-3mm. Its surface is smooth and has good corrosion resistance, which can maintain its guiding performance for a long time. Rainwater is guided to the water storage chamber 10 through the guide channel. The water storage chamber 10 has a rectangular cross-section, the same length as the groove 2, and a height of 10mm-15mm, which can temporarily store a certain amount of rainwater. A filter screen is installed inside the water storage chamber 10. The filter screen is made of stainless steel with a pore size of 1mm-2mm. It is fixed inside the water storage chamber 10 by bolts to intercept impurities in the rainwater and prevent impurities from clogging the drain hole 11.

[0033] Subsequently, the drainage holes 11 at the bottom of the water storage chamber 10 quickly drain the rainwater. The drainage holes 11 have a diameter of 5mm-8mm, with 2-3 holes per meter of length. Their positions are optimized to ensure that rainwater is evenly distributed and drained quickly, preventing water accumulation. This design not only improves the drainage efficiency of the curb but also reduces the risk of road surface damage caused by water accumulation.

[0034] Furthermore, the anti-slip protrusions 3 at the bottom of the main structure 1 come into contact with the ground during use, generating significant friction. The height of each anti-slip protrusion 3 is 5mm-10mm, and the spacing between adjacent protrusions is 20mm-30mm. Their upper surfaces are roughened, significantly enhancing adhesion to the ground and preventing the curb from slipping due to external forces. This design is particularly suitable for ramps or areas prone to water accumulation, effectively improving the stability of the curb.

[0035] At night or in low-light conditions, the reflective strips on the upper surface of the deflector 9 play a crucial role. These reflective strips are made of glass microspheres, are 10mm-15mm wide, and are fixed to the upper surface of the deflector 9 with adhesive. When vehicle headlights shine on the reflective strips, the light is reflected back into the driver's field of vision, significantly improving the visibility of the curb and thus increasing road safety.

[0036] Finally, the wear-resistant layer 12 on top of the main structure 1 exhibits excellent wear resistance during long-term use. The wear-resistant layer 12 is made of epoxy resin, with a thickness of 2mm-3mm, and is applied to the top surface of the main structure 1 by spraying. Under frequent vehicle traffic or environmental erosion, the wear-resistant layer 12 effectively protects the curbstone surface and extends its service life.

[0037] In summary, this utility model achieves multifunctionality of curb stones in practical applications through the synergistic effect of its components. From rainwater collection and drainage to improved anti-slip performance and enhanced nighttime visibility, every design detail has been scientifically optimized to ensure that the curb stones, while separating driveways from sidewalks or green belts, possess excellent drainage performance, durability, and safety, meeting the requirements of high-standard engineering projects.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A recycled aggregate concrete curbstone, comprising a main structure (1), characterized in that, It also includes reinforcement components and permeation regulation components, with the following specific structure: The main structure (1) is a cuboid shape and is made of recycled aggregate concrete. The top of the main structure (1) is provided with a groove (2), which runs through the length of the main structure (1) and has a trapezoidal cross-section. The bottom of the main structure (1) is provided with multiple anti-slip protrusions (3) arranged at intervals. The cross-section of the anti-slip protrusions (3) is rectangular and the height of the anti-slip protrusions (3) is 5 mm to 10 mm. The two sides of the main structure (1) are respectively provided with a first connecting groove (4) and a second connecting groove (5). The first connecting groove (4) and the second connecting groove (5) are both semi-circular and symmetrically distributed along the center line of the main structure (1). The inner walls of the first connecting groove (4) and the second connecting groove (5) are coated with a waterproof coating (6) with a thickness of 0.5 mm to 1 mm. The reinforcing component is located inside the main structure (1). The reinforcing component includes a steel mesh (7) and fiber bundles (8). The steel mesh (7) is made of multiple transverse and longitudinal steel bars welded together. The mesh size of the steel mesh (7) is 50 mm × 50 mm, and the thickness of the steel mesh (7) is 3 mm to 5 mm. The steel mesh (7) is embedded inside the main structure (1), and the upper surface of the steel mesh (7) is 20 mm to 30 mm away from the top surface of the main structure (1). The fiber bundles (8) are composed of polypropylene fibers. The fiber bundles (8) are evenly distributed inside the main structure (1). The length of the fiber bundles (8) is 10 mm to 15 mm, and the diameter of the fiber bundles (8) is 0.1 mm to 0.2 mm. The dosage of the fiber bundles (8) is 1 kg to 2 kg per cubic meter of concrete. The osmosis regulating component is located inside the groove (2) of the main structure (1). The osmosis regulating component includes a guide plate (9) and a water storage chamber (10). The guide plate (9) is fixedly installed at the bottom of the groove (2). The material of the guide plate (9) is high-density polyethylene, and the thickness of the guide plate (9) is 2 mm to 3 mm. The upper surface of the guide plate (9) is provided with multiple parallel guide grooves. The width of the guide grooves is 5 mm to 8 mm, and the depth of the guide grooves is 2 mm to 3 mm. The water storage chamber (10) is located below the guide plate (9). The cross-section of the water storage chamber (10) is rectangular. The length of the water storage chamber (10) is the same as the length of the groove (2). The height of the water storage chamber (10) is 10 mm to 15 mm. The bottom of the water storage chamber (10) is provided with a drain hole (11). The diameter of the drain hole (11) is 5 mm to 8 mm, and the number of drain holes (11) is 2 to 3 per meter of length.

2. The recycled aggregate concrete curbstone according to claim 1, characterized in that, The top of the main structure (1) is also provided with a wear-resistant layer (12), which is made of epoxy resin material and has a thickness of 2 mm to 3 mm. The wear-resistant layer (12) is applied to the top surface of the main structure (1) by spraying.

3. The recycled aggregate concrete curbstone according to claim 1, characterized in that, The inner walls of the first connecting groove (4) and the second connecting groove (5) are also provided with sealing gaskets. The sealing gaskets are made of EPDM rubber and have a thickness of 2 mm to 3 mm. The sealing gaskets are fixedly installed on the inner walls of the first connecting groove (4) and the second connecting groove (5) by adhesive.

4. The recycled aggregate concrete curbstone according to claim 1, characterized in that, The water storage chamber (10) is also equipped with a filter screen. The filter screen is made of stainless steel and has a pore size of 1 mm to 2 mm. The filter screen is fixedly installed inside the water storage chamber (10) by bolts.

5. A recycled aggregate concrete curbstone according to claim 1, characterized in that, The upper surface of the deflector (9) is also provided with reflective strips. The reflective strips are made of glass microspheres and have a width of 10 mm to 15 mm. The reflective strips are fixedly installed on the upper surface of the deflector (9) by adhesive.

6. The recycled aggregate concrete curbstone according to claim 1, characterized in that, One end of the main structure (1) is provided with a positioning pin and the other end is provided with a positioning hole. The positioning pin and the positioning hole have the same diameter. After the positioning pin is inserted into the positioning hole, it is fixedly connected by bolts.

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