Recycled asphalt pavement structure

Abstract

The utility model discloses a recycled asphalt pavement structure which comprises a pavement foundation, a drainage base and drainage pipes arranged at equal intervals, the bottom face of the drainage base makes contact with the upper surface of the pavement foundation, and the outer surface of each drainage pipe is fixedly connected with the inner wall of the drainage base. Water seepage holes arranged at equal intervals are formed in the outer surface of each drainage pipe, a pavement surface base is arranged above the pavement foundation, a first heat-resistant layer is arranged above the pavement surface base, and a second heat-resistant layer is arranged below the pavement surface base. Through cooperation of the pavement foundation, the drainage base, the drainage pipe and the water seepage holes, soaking of rainwater in the pavement structure is reduced, the strength of the pavement structure can be improved, then through cooperation of the pavement surface base, the first heat-resisting layer, the second heat-resisting layer, the first wear-resisting layer and the second wear-resisting layer, the pavement structure is composed of the refractory clay bricks, and the pavement structure is convenient to use. The effects of further improving the strength of the pavement structure and prolonging the service life of the pavement structure are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pavement structures, in particular to a regenerated asphalt pavement structure. Background Art

[0002] For a long time, asphalt pavement has been widely used in highway construction due to its advantages of comfortable driving, anti-skid, noise reduction and easy maintenance and repair. With the rapid development of transportation, the mileage of asphalt pavement has increased significantly year by year.

[0003] The utility model with the existing authorization announcement number CN212025808U discloses a regenerated asphalt pavement structure, including a cushion layer, a base layer is fixedly connected to the top of the cushion layer, a surface layer is laid on the top of the base layer, an anti-skid layer is laid on the top of the surface layer, the anti-skid layer includes a binder resin, an anti-skid aggregate is bonded to the top of the binder resin, and the surface layer includes a gravel layer. By adopting the above-mentioned technical scheme, the regenerated asphalt pavement structure can reuse waste pavement or used asphalt materials, and can promptly handle a large amount of waste asphalt mixture and cement-stabilized base mixture milled off during the reconstruction period, effectively avoiding land occupation and protecting the environment at the same time. By providing an anti-skid layer and an adhesive resin, etc., the regenerated asphalt pavement structure has good anti-skid properties, which reduces the occurrence of traffic accidents to a certain extent. However, according to the above-mentioned technical scheme, the recyclable materials on the regenerated asphalt pavement have a long service life, and repeated use will greatly reduce the strength of the regenerated asphalt pavement. Its bonding strength is reduced under the immersion of rainwater, thereby greatly increasing the number of maintenance times of the regenerated asphalt pavement structure, reducing the service life of the regenerated asphalt pavement structure, and further affecting the normal driving of vehicles on the regenerated asphalt pavement. Utility Model Content

[0004] The utility model aims to provide a regenerated asphalt pavement structure, which has the advantage of high strength of the regenerated asphalt pavement.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A regenerated asphalt pavement structure comprises a pavement foundation, a drainage base and drainage pipes arranged at equal distances, wherein the bottom surface of the drainage base contacts the upper surface of the pavement foundation, the outer surface of each drainage pipe is fixedly connected to the inner wall of the drainage base, the outer surface of each drainage pipe is provided with seepage holes arranged at equal distances, a pavement surface base is arranged above the pavement foundation, a first heat-resistant layer is arranged above the pavement surface base, a second heat-resistant layer is arranged below the pavement surface base, a first wear-resistant layer is arranged above the first heat-resistant layer, and a second wear-resistant layer is arranged below the second heat-resistant layer.

[0007] Preferably, side foundations are provided on the front side and the back side of the pavement foundation, and a drainage ditch is provided on the upper surface of each side foundation.

[0008] Preferably, one end of each of the drainage pipes away from each other is fixedly connected to a mounting tube, and one side of the two groups of mounting tubes away from each other is provided with a mounting groove, and each group of the mounting grooves is connected to the seepage hole.

[0009] Preferably, a mounting ring is clamped inside each group of the mounting grooves, and a filter screen is fixedly connected to the inner wall of each group of the mounting rings.

[0010] Preferably, a roadbed body is arranged above the drainage base, and the upper surface of the roadbed body is in contact with the bottom surface of the road surface base.

[0011] Preferably, a first concrete stone layer is arranged above the main body of the roadbed, and a second concrete stone layer is arranged below the main body of the roadbed.

[0012] Preferably, a first asphalt layer is disposed above the first concrete stone layer, and a second asphalt layer is disposed below the second concrete stone layer.

[0013] In the utility model, by providing a pavement foundation, a drainage base, a drainage pipe and a seepage hole, it is possible to utilize a drainage base to be provided on the pavement foundation, and to fix a plurality of drainage pipes in the drainage base, so that not only the strength of the regenerated asphalt pavement structure can be enhanced by utilizing the drainage pipe, but also the water infiltrated into the pavement structure can be conveniently transported to the drainage pipe through the seepage hole for discharge, thereby reducing the soaking of the pavement structure by rainwater, and thus greatly improving the strength of the pavement structure, and then utilizing the pavement surface base, the first heat-resistant layer, the second heat-resistant layer, the first wear-resistant layer and the second wear-resistant layer, it is possible to provide a pavement surface base on the upper surface layer of the asphalt pavement structure, and to provide a first heat-resistant layer, a second heat-resistant layer, a first wear-resistant layer and a second wear-resistant layer outside the pavement surface base, which is composed of refractory clay bricks, and the bricks have the characteristics of fire prevention, heat insulation, sound insulation, moisture absorption, high temperature resistance, high strength, good wear resistance, earthquake resistance and chemical corrosion resistance, so as to further improve the strength of the pavement structure and extend the service life of the pavement structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the drainage base of the utility model;

[0015] Figure 2 It is a three-dimensional structural schematic diagram of the drainage pipe of the utility model;

[0016] Figure 3 It is a cross-sectional view of the main body of the roadbed of the utility model;

[0017] Figure 4 It is a cross-sectional view of the pavement surface base of the utility model.

[0018] In the figure: 1. pavement foundation; 2. drainage base; 3. roadbed body; 4. pavement surface base; 5. side foundation; 6. drainage trough; 7. mounting cylinder; 8. mounting ring; 9. filter screen; 10. drainage pipe; 11. seepage hole; 12. mounting groove; 13. first concrete stone layer; 14. second concrete stone layer; 15. first asphalt layer; 16. second asphalt layer; 17. first heat-resistant layer; 18. second heat-resistant layer; 19. first wear-resistant layer; 20. second wear-resistant layer. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Refer to the figure Figure 1-4 The utility model discloses a regenerated asphalt pavement structure, comprising a pavement foundation 1, a drainage foundation 2 and drainage pipes 10 arranged at equal distances, the bottom surface of the drainage foundation 2 is in contact with the upper surface of the pavement foundation 1, the outer surface of each drainage pipe 10 is fixedly connected to the inner wall of the drainage foundation 2, the front and back sides of the pavement foundation 1 are provided with side foundations 5, the upper surface of each side foundation 5 is provided with drainage grooves 6, by arranging side foundations 5 on both sides of the pavement foundation 1 and opening drainage grooves 6 on the side foundations 5, the water seeping into the pavement structure can be conveniently discharged.

[0021] The outer surface of each drain pipe 10 is provided with seepage holes 11 arranged at equal distances. The end of each drain pipe 10 away from each other is fixedly connected with a mounting cylinder 7. The side surfaces of two groups of mounting cylinders 7 away from each other are provided with mounting grooves 12. Each group of mounting grooves 12 is connected with the seepage holes 11. By fixing the mounting cylinders 7 at both ends of the drain pipe 10 and providing the mounting grooves 12 on one side of the mounting cylinders 7, the filtering structure can be easily installed.

[0022] Each set of mounting grooves 12 is clamped with a mounting ring 8, and the inner wall of each set of mounting rings 8 is fixedly connected with a filter screen 9. By manually clamping the mounting ring 8 into the mounting groove 12, the filter screen 9 can be used to filter and isolate debris on both sides of the drain pipe 10.

[0023] A pavement surface base 4 is arranged above the pavement foundation 1, and a roadbed body 3 is arranged above the drainage base 2. The upper surface of the roadbed body 3 is in contact with the bottom surface of the pavement surface base 4. By setting the roadbed body 3, the main body of the regenerated asphalt pavement structure is formed, and the roadbed body 3 can be recycled to achieve the regeneration of the asphalt pavement structure.

[0024] A first heat-resistant layer 17 is arranged above the pavement surface base 4, a second heat-resistant layer 18 is arranged below the pavement surface base 4, a first concrete stone layer 13 is arranged above the roadbed main body 3, and a second concrete stone layer 14 is arranged below the roadbed main body 3. By arranging the first concrete stone layer 13 and the second concrete stone layer 14 outside the roadbed main body 3, it is convenient to collect the concrete stone, so as to process it and lay it on the pavement structure again.

[0025] A first wear-resistant layer 19 is arranged above the first heat-resistant layer 17, a second wear-resistant layer 20 is arranged below the second heat-resistant layer 18, a first asphalt layer 15 is arranged above the first concrete stone layer 13, and a second asphalt layer 16 is arranged below the second concrete stone layer 14. The first asphalt layer 15 and the second asphalt layer 16 are arranged on the outside of the roadbed body 3. The asphalt is a pavement structure in which a certain thickness of asphalt mixture is paved as a surface layer on a flexible base and a semi-rigid base.

[0026] The working principle of the utility model is as follows: when it is used, when it is necessary to construct and use the regenerated asphalt pavement structure, a drainage base 2 is first manually laid on the pavement foundation 1. When laying the drainage base 2, a drainage pipe 10 is buried inside the drainage base 2, and drainage grooves 6 are opened on the side foundations 5 on both sides of the pavement foundation 1, so that the drainage inside the regenerated asphalt pavement structure can be accelerated through the drainage effect of the drainage base 2. In rainy weather, rainwater enters the drainage base 2 through the upper layer of the pavement structure, and a plurality of seepage holes 11 are opened on the outer surface of the drainage pipe 10 in the drainage base 2, so that the rainwater inside the pavement structure can penetrate into the drainage pipe 10 and be discharged into the drainage groove 6. When installing the drainage pipe 10, the installation ring 8 can be manually installed into the installation groove 12 opened on one side of the installation tube 7, and the filter net 9 in the installation ring 8 can be used to filter and separate debris. Not only can the drainage pipe 10 be used to strengthen the strength of the pavement structure, but also the erosion of the pavement structure by rainwater can be reduced.

[0027] Then, the main roadbed 3 is manually laid on the drainage base 2, and a pavement surface base 4 is set on the surface of the pavement structure. The first concrete stone layer 13, the second concrete stone layer 14, the first asphalt layer 15 and the second asphalt layer 16 outside the main roadbed 3 can be used to form the basic structure of the main roadbed 3 with concrete stone and asphalt, and the first heat-resistant layer 17, the second heat-resistant layer 18, the first wear-resistant layer 19 and the second wear-resistant layer 20 set outside the pavement surface base 4 can be used to set refractory clay bricks on the outermost layer of the pavement structure to further improve the heat resistance and wear resistance of the pavement structure.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A regenerated asphalt pavement structure, comprising a pavement foundation (1), a drainage base (2) and drainage pipes (10) arranged at equal distances, Features: The bottom surface of the drainage base (2) is in contact with the upper surface of the road surface foundation (1), the outer surface of each drainage pipe (10) is fixedly connected to the inner wall of the drainage base (2), and the outer surface of each drainage pipe (10) is provided with seepage holes (11) arranged at equal distances. A road surface base (4) is arranged above the road surface foundation (1), a first heat-resistant layer (17) is arranged above the road surface base (4), a second heat-resistant layer (18) is arranged below the road surface base (4), a first wear-resistant layer (19) is arranged above the first heat-resistant layer (17), and a second wear-resistant layer (20) is arranged below the second heat-resistant layer (18).

2. A regenerated asphalt pavement structure according to claim 1, Features: Side foundations (5) are provided on the front side of the road surface foundation (1) and the back side of the road surface foundation (1), and a drainage groove (6) is provided on the upper surface of each side foundation (5).

3. A regenerated asphalt pavement structure according to claim 1, Features: One end of each of the drainage pipes (10) that is away from each other is fixedly connected to a mounting tube (7), and a mounting groove (12) is provided on a side surface of two groups of mounting tubes (7) that is away from each other, and each group of mounting grooves (12) is connected to a water seepage hole (11).

4. A regenerated asphalt pavement structure according to claim 3, Features: A mounting ring (8) is clamped inside each group of the mounting grooves (12), and a filter screen (9) is fixedly connected to the inner wall of each group of the mounting rings (8).

5. A regenerated asphalt pavement structure according to claim 1, Features: A roadbed main body (3) is arranged above the drainage base (2), and the upper surface of the roadbed main body (3) is in contact with the bottom surface of the road surface base (4).

6. A regenerated asphalt pavement structure according to claim 5, Features: A first concrete stone layer (13) is arranged above the roadbed body (3), and a second concrete stone layer (14) is arranged below the roadbed body (3).

7. A regenerated asphalt pavement structure according to claim 6, Features: A first asphalt layer (15) is arranged above the first concrete stone layer (13), and a second asphalt layer (16) is arranged below the second concrete stone layer (14).

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