Environment-friendly sand-free pervious concrete pavement structure

Abstract

The utility model discloses an environment-friendly sand-free pervious concrete pavement structure and relates to the technical field of pervious pavements. The structure comprises a rammed earth layer, a reinforcing assembly is arranged at the upper end of the rammed earth layer, a placing area for placing cushion padding is arranged in the reinforcing assembly, a steel slag asphalt permeable layer is laid at the upper end of the reinforcing assembly, and a permeable concrete layer is arranged at the upper end of the steel slag asphalt permeable layer. Cushion materials of the pavement structure adopt solid waste products of steelmaking equipment, namely a steel slag asphalt permeable layer, gravel particles recycled from buildings, namely an urban construction waste recycled aggregate cushion layer, and ceramsite made of recycled materials, namely a ceramsite concrete layer, which are all recycled materials, so that the pavement structure is endowed with the characteristic of environmental protection; and in order to facilitate laying of the ceramsite concrete layer and the urban construction waste recycled aggregate cushion layer by constructors, scale grooves are formed in the side walls of the side supporting plates, and the workers can control the laying thickness conveniently.

Description

Technical Field

[0001] The utility model belongs to the field of permeable pavement, and specifically relates to an environmentally friendly sand-free permeable concrete pavement structure. Background Art

[0002] At present, urban surfaces are increasingly covered by "hardened" materials such as asphalt and concrete, such as driveways, sidewalks, parks, community roads, parking lots and public squares. It is undeniable that their application brings many conveniences and improves the efficiency of life and travel, but it also produces many negative effects. For example, due to the dense pores, the road surface has poor water permeability, which is prone to flooding when it is hit by heavy rain in the city. It also changes the urban water evaporation cycle system, causing urban waterlogging and the "heat island effect";

[0003] Since the existing road surface cushion layer is paved with a large amount of non-renewable river sand, mountain rocks and other natural resources, and the waste materials such as urban construction waste are not used in the exposed aggregate permeable concrete ground structure, it is not energy-saving and environmentally friendly, and also increases the construction cost of the concrete road structure. In view of this, the present utility model is specially proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an environmentally friendly sand-free permeable concrete pavement structure.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0006] An environmentally friendly sandless permeable concrete pavement structure comprises a plain soil rammed layer, a reinforcement component is arranged at the upper end of the plain soil rammed layer, a placement area for inserting cushion filler is arranged inside the reinforcement component, a steel slag asphalt permeable layer is laid at the upper end of the reinforcement component, and a permeable concrete layer is arranged at the upper end of the steel slag asphalt permeable layer;

[0007] The cushion filler is divided into a ceramsite concrete layer and a cushion layer of recycled aggregate from urban construction waste.

[0008] Optionally, the reinforcement assembly includes a lower pad, an upper pad and side support plates, and the middle parts of the lower pad and the upper pad are provided with reserved holes for studs to pass through and drainage holes for positioning nails to pass through, and the inner wall surfaces of the lower pad and the upper pad are evenly spaced with scale grooves to facilitate construction workers to know the laying height of the expanded clay concrete layer and the urban construction waste recycled aggregate cushion layer.

[0009] Optionally, a conical bottom for inserting into the rammed earth layer is fixedly mounted at the bottom of the stud, the top end of the stud is threadedly connected to a limiting nut, and the lower surface of the limiting nut contacts the surface of the upper pad.

[0010] Optionally, drainage grooves are evenly spaced in the middle of the upper pad and the lower pad.

[0011] Optionally, the positioning pin is fixedly connected to the side branch plate, and the top end of the positioning pin passes through the upper end of the side branch plate, and the bottom end of the positioning pin passes through the lower end of the side branch plate.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below at the same time:

[0013] 1. The cushion material of this pavement structure adopts the solid waste product of steelmaking equipment, namely the steel slag asphalt permeable layer, the crushed stone particles recycled from construction, namely the recycled aggregate cushion layer of urban construction waste, and the ceramsite made of recycled materials, namely the ceramsite concrete layer. They are all recycled materials, thus giving this pavement structure the characteristics of environmental protection. Compared with the existing non-renewable river sand as the cushion layer, it is obviously more environmentally friendly;

[0014] 2. The permeable concrete layer, steel slag asphalt permeable layer, ceramsite concrete layer and urban construction waste recycled aggregate cushion layer of this pavement structure are all permeable materials. Therefore, when it rains, rainwater will seep into the ground to replenish groundwater, which will not cause water accumulation on the road surface. In addition, when the weather is hot, the rainwater stored underground can evaporate and take away some heat, thereby alleviating the urban heat island effect.

[0015] 3. This pavement structure reinforces the unformed ceramsite concrete layer and the urban construction waste recycled aggregate cushion layer, making it convenient for workers to lay the pavement. During the laying process, workers can use the scale grooves on the side wall surface of the side support plate to control the laying thickness of the ceramsite concrete layer and the urban construction waste recycled aggregate cushion layer.

[0016] The specific implementation modes of the present utility model are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described below are only some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0018] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0019] Figure 2 This is a structural diagram of the combined parts of the lower pad, drainage groove, drainage hole and reserved hole in the utility model;

[0020] Figure 3 This is a schematic diagram of the appearance of the combined parts structure of the stud, the limit nut and the conical bottom in the utility model;

[0021] Figure 4 This is a schematic diagram of the appearance of the combined parts structure of the side support plate, the scale groove and the positioning pin in the utility model;

[0022] Figure 5 for Figure 1 Schematic diagram of the structure of part A.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. Rammed earth layer; 2. Steel slag asphalt permeable layer; 3. Permeable concrete layer; 4. Expanded clay concrete layer; 5. Urban construction waste recycled aggregate cushion layer; 6. Lower pad; 7. Upper pad; 8. Side support plate; 9. Stud; 10. Reserved hole; 11. Positioning nail; 12. Drainage hole; 13. Scale groove; 14. Conical bottom; 15. Limit nut; 16. Drainage groove.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] The utility model is now described in further detail with reference to the accompanying drawings.

[0027] See also Figures 1 to 5 The utility model provides a technical solution: an environmentally friendly sand-free permeable concrete pavement structure, comprising a plain soil rammed layer 1, a reinforcement component is provided at the upper end of the plain soil rammed layer 1, a placement area for inserting cushion fillers is provided inside the reinforcement component, a steel slag asphalt permeable layer 2 is laid at the upper end of the reinforcement component, and a permeable concrete layer 3 is provided at the upper end of the steel slag asphalt permeable layer 2;

[0028] The cushion filler is divided into ceramsite concrete layer 4 and urban construction waste recycled aggregate cushion layer 5. Considering that the existing road cushion layer is paved with a large amount of non-renewable river sand, mountain rocks and other natural resources, and the urban construction waste and other waste raw materials are not used in the exposed aggregate permeable concrete ground structure, it is not energy-saving and environmentally friendly, and it also increases the construction cost of the concrete road structure. The cushion material of this pavement structure adopts the solid waste product of steelmaking equipment, namely the steel slag asphalt permeable layer 2, the crushed stone particles recycled from construction, namely the urban construction waste recycled aggregate cushion layer 5, and the ceramsite made of recycled materials, namely the ceramsite concrete layer 4. They are all recycled materials, thus giving the pavement structure an environmentally friendly characteristic. Compared with the existing non-renewable river sand as the cushion layer, it is obviously more environmentally friendly. Steel slag is usually piled up and processed, and the comprehensive utilization rate is low. It not only occupies a large amount of land resources, but also causes pollution to the air and water environment. The The utility model has high mechanical properties, good particle shape, strong wear resistance, developed surface micropores, excellent adhesion with asphalt and low price, and is a better road construction aggregate. The urban construction waste recycled aggregate cushion layer 5 is brick and stone rubble fragments recycled after the demolition of urban buildings, and the ceramsite concrete layer 4 is prepared by using fly ash, slag, lime and cement materials through plasticizing, granulating and autoclaving processes to prepare fly ash unburned ceramsite, and then fly ash unburned ceramsite and fly ash unburned ceramic sand are used as main aggregates, supplemented with cement, reinforcing agent and water to form fly ash unburned ceramsite permeable concrete, and the permeable concrete layer 3, steel slag asphalt permeable layer 2, ceramsite concrete layer 4 and urban construction waste recycled aggregate cushion layer 5 are all permeable materials. Therefore, when it rains, rainwater will penetrate into the ground to replenish groundwater, which will not cause water accumulation on the road surface, and when the weather is hot, the rainwater stored in the ground can evaporate and take away part of the heat, thereby alleviating the urban heat island effect.

[0029] Among them, the reinforcement components include a lower pad 6, an upper pad 7 and a side support plate 8. The middle parts of the lower pad 6 and the upper pad 7 are provided with reserved holes 10 for the studs 9 to pass through and drainage holes 12 for the positioning nails 11 to pass through. The inner wall surfaces of the lower pad 6 and the upper pad 7 are evenly spaced with scale grooves 13 for the construction workers to know the laying height of the expanded clay concrete layer 4 and the urban construction waste recycled aggregate cushion layer 5.

[0030] Among them, the bottom of the stud 9 is fixedly installed with a conical bottom 14 for inserting the rammed earth layer 1, the top of the stud 9 is threadedly connected to the limiting nut 15, and the lower surface of the limiting nut 15 is in conflict with the surface of the upper pad 7. By arranging the stud 9, the conical bottom 14 and the limiting nut 15, the lower pad 6, the side support plate 8 and the upper pad 7 are reinforced, and the fixing assembly can utilize the conical bottom 14 at the bottom of multiple studs 9 to be firmly inserted into the rammed earth layer 1.

[0031] Among them, drainage grooves 16 are evenly spaced in the middle of the upper pad 7 and the lower pad 6. The drainage grooves 16 facilitate rainwater on the road surface to pass through the permeable concrete layer 3, the steel slag asphalt permeable layer 2, the expanded clay concrete layer 4 and the urban construction waste recycled aggregate pad 5 in sequence.

[0032] Among them, the positioning pin 11 is fixedly connected to the side support plate 8, and the top of the positioning pin 11 passes through the upper end of the side support plate 8, and the bottom of the positioning pin 11 passes through the lower end of the side support plate 8. By setting the positioning pin 11, it is convenient for users to complete the assembly of the upper pad 7, the lower pad 6 and the side support plate 8, that is, the upper and lower ends of the positioning pin 11 can be used to connect the drainage holes 12 of the upper pad 7 and the lower pad 6 respectively to complete the assembly.

[0033] The present invention is not limited to the above-mentioned implementation modes. Anyone should be aware of the structural changes made under the inspiration of the present invention. Any technical solution that is the same or similar to the present invention falls within the protection scope of the present invention. The technology, shape, and structure that are not described in detail in the present invention are all known technologies.

Claims

1. An environmentally friendly sand-free permeable concrete pavement structure, comprising a rammed soil layer (1), characterized in that: A reinforcement component is provided at the upper end of the rammed earth layer (1), a placement area for inserting cushion fillers is provided inside the reinforcement component, a steel slag asphalt water-permeable layer (2) is laid at the upper end of the reinforcement component, and a water-permeable concrete layer (3) is provided at the upper end of the steel slag asphalt water-permeable layer (2); The cushion filler is divided into a ceramsite concrete layer (4) and a cushion layer of recycled aggregate from urban construction waste (5).

2. The environmentally friendly sand-free permeable concrete pavement structure according to claim 1, characterized in that: The reinforcement assembly comprises a lower pad (6), an upper pad (7) and a side support plate (8); the middle parts of the lower pad (6) and the upper pad (7) are provided with a reserved hole (10) for the stud (9) to pass through and a drainage hole (12) for the positioning nail (11) to pass through; and graduated grooves (13) are evenly spaced on the inner wall surfaces of the lower pad (6) and the upper pad (7) to facilitate construction workers to know the laying height of the ceramsite concrete layer (4) and the urban construction waste recycled aggregate cushion layer (5).

3. The environmentally friendly sand-free permeable concrete pavement structure according to claim 2 is characterized in that: The bottom of the stud (9) is fixedly provided with a conical bottom (14) for inserting into the rammed earth layer (1), the top of the stud (9) is threadedly connected to a limiting nut (15), and the lower surface of the limiting nut (15) contacts the surface of the upper pad (7).

4. The environmentally friendly sand-free permeable concrete pavement structure according to claim 2 is characterized in that: Drainage grooves (16) are evenly spaced in the middle of the upper pad (7) and the lower pad (6).

5. The environmentally friendly sand-free permeable concrete pavement structure according to claim 2, characterized in that: The positioning pin (11) is fixedly connected to the side support plate (8), and the top end of the positioning pin (11) passes through the upper end of the side support plate (8), and the bottom end of the positioning pin (11) passes through the lower end of the side support plate (8).

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