A strong durable asphalt pavement structure

Abstract

The utility model provides a kind of strong asphalt pavement structure of durability, it is related to road engineering construction technical field, including base layer, basalt fiber is arranged in base layer, the side of base layer is provided with rubber asphalt mixture layer, in the utility model, the net-like support structure of basalt fiber in base layer is formed, the crack resistance and bearing capacity of base layer are enhanced, the deformation due to load is reduced, the rubber asphalt mixture layer of the side of base layer utilizes rubber elasticity buffer vehicle impact, while its internal water collector can quickly discharge the accumulated water that seeps in, avoid water damage, the wearing layer above rubber asphalt mixture layer bears direct wear, inside wear-resistant aggregate improves skid resistance and rolling resistance performance, prolongs surface service life, the anti-aging agent on the surface of wearing layer can block ultraviolet rays, delay asphalt oxidation, reduce the hardening cracking caused by high temperature and illumination, each layer is complementary through material characteristics, realize the comprehensive protection of crack resistance, waterproof, wear resistance, anti-aging.

Description

Technical Field

[0001] This utility model relates to the field of road engineering construction technology, and in particular to a durable asphalt pavement structure. Background Technology

[0002] Highly durable asphalt pavement structures are mainly designed to improve the service life and compressive strength of roads, reduce maintenance frequency, optimize the composition of asphalt mixtures, improve the stability of the roadbed, and combine advanced construction techniques to enhance the pavement's resistance to environmental factors such as high temperature, low temperature, and humidity, thereby improving the overall durability and economic benefits of the pavement.

[0003] However, in actual use, the following shortcomings still exist, such as: the existing asphalt pavement structure cannot achieve comprehensive protection against cracking, water, wear, and aging; after water seeps into the base layer, it softens the roadbed, and under repeated vehicle loads, it forms cracks, potholes, and even mudslides; the shrinkage stress of the semi-rigid base layer lacks buffer when it is transferred to the surface layer, resulting in regular cracks on the surface; in northern regions, water seeps in during winter, freezes and expands in volume, and after melting in spring, it carries away fine materials, forming voids; in the hot and humid environment of the south, the asphalt film peels off faster, and the wheel track area appears as gray-white stripes due to the loss of the asphalt film, affecting the identification of driving guidance.

[0004] Therefore, this utility model proposes a durable asphalt pavement structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and propose a durable asphalt pavement structure.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a durable asphalt pavement structure, comprising a base course, wherein basalt fibers are disposed within the base course, a rubber asphalt mixture layer is disposed on one side of the base course, a wear-resistant layer is disposed on the side of the rubber asphalt mixture layer away from the base course, wear-resistant aggregate is disposed within the wear-resistant layer, an anti-aging agent is disposed on the wear-resistant layer, and a water collection pipe is disposed within the rubber asphalt mixture layer.

[0007] Furthermore, a support pipe is provided within the rubber asphalt mixture layer.

[0008] The beneficial effects of adopting the above-mentioned further scheme are: the support pipe in the rubber asphalt mixture layer is made of high-strength polymer material, and its rigid structure can disperse the pressure of vehicle load on the base layer, reduce the deformation of the mixture layer, and at the same time provide physical protection for the internal water collection pipe, avoid damage to the water collection pipe due to external extrusion, and enhance the stability of the drainage system.

[0009] Furthermore, the water collection pipe is installed inside the support pipe.

[0010] The beneficial effects of adopting the above-mentioned further solution are: the water collection pipe is placed inside the support pipe, the support pipe isolates the direct compression of the external mixture, ensures the smooth drainage channel of the water collection pipe, and allows the water that seeps into the road surface to quickly collect and be discharged along the preset path, reducing the risk of water damage to each structural layer.

[0011] Furthermore, a water outlet is provided on the side of the wear layer near the water collection pipe.

[0012] The beneficial effect of adopting the above-mentioned further solution is that the water outlet on the wear layer is connected to the water collection pipe to form a drainage terminal. The accumulated water is transported to the water collection pipe through the water outlet, which diverts the water on the road surface and prevents water accumulation on the road surface.

[0013] Furthermore, a placement plate is provided on the water outlet.

[0014] The beneficial effects of adopting the above-mentioned further solution are: the placement plate on the outlet provides a mounting base for the filter screen, and its rigid material can resist the impact of vehicle crushing, fix the position of the filter screen, ensure that the filter screen does not fall off or shift during long-term use, and maintain the structural integrity of the drain outlet.

[0015] Furthermore, a filter screen is connected to the side of the placement plate near the water outlet.

[0016] The beneficial effects of adopting the above-mentioned further solution are: the filter screen connected to the placement plate is made of corrosion-resistant metal mesh, which can intercept road debris, sand and gravel from entering the outlet and collection pipe, prevent pipe blockage, and ensure the long-term effective operation of the drainage system.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] In this invention, basalt fibers within the base layer form a mesh support structure, enhancing the base layer's crack resistance and load-bearing capacity, and reducing deformation caused by loads. The rubber asphalt mixture layer on one side of the base layer utilizes rubber elasticity to buffer vehicle impacts, while its internal water collection pipes can quickly drain infiltrated water, preventing water damage. The wear layer above the rubber asphalt mixture layer bears direct wear, and the internal wear-resistant aggregate improves anti-skid and rolling resistance, extending the service life of the surface layer. The anti-aging agent on the surface of the wear layer can block ultraviolet rays, delay asphalt oxidation, and reduce hardening cracks caused by high temperature and sunlight. Through the complementary material properties of each layer, comprehensive protection against cracking, water, wear, and aging is achieved. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a durable asphalt pavement structure according to the present invention.

[0020] Figure 2 This is a schematic diagram of the subgrade structure of a durable asphalt pavement structure according to this utility model.

[0021] Figure 3 This is a structural breakdown diagram of a durable asphalt pavement structure according to the present invention.

[0022] Figure 4 This is a schematic diagram of the drainage structure of a durable asphalt pavement structure according to the present invention.

[0023] Figure 5 This is a schematic diagram of the base structure of a durable asphalt pavement structure according to the present invention.

[0024] Figure label:

[0025] 1. Base layer; 2. Basalt fiber; 3. Rubber asphalt mixture layer; 4. Wear layer; 5. Wear-resistant aggregate; 6. Anti-aging agent; 7. Support pipe; 8. Water collection pipe; 9. Water outlet; 10. Placement plate; 11. Filter screen. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] like Figures 1-5As shown, this embodiment provides a technical solution: a durable asphalt pavement structure, including a base course 1, basalt fibers 2 disposed within the base course 1, a rubber asphalt mixture layer 3 disposed on one side of the base course 1, a wear-resistant layer 4 disposed on the side of the rubber asphalt mixture layer 3 away from the base course 1, wear-resistant aggregate 5 disposed within the wear-resistant layer 4, an anti-aging agent 6 disposed on the wear-resistant layer 4, and a water collection pipe 8 disposed within the rubber asphalt mixture layer 3. The basalt fibers 2 within the base course 1 are distributed in a mesh pattern, interwoven to form a continuous mesh support structure. This structure, through the interface bonding between the fibers and the matrix, transmits local stress to the surrounding area, disperses stress concentration caused by load, thereby enhancing the crack resistance and load-bearing capacity of the base course 1. Under repeated vehicle loads, the mesh structure restricts the expansion of micro-cracks inside the matrix, reduces deformation caused by load, and maintains the overall stability of the base course 1. The rubber asphalt mixture layer 3 on one side of the base course 1 is composed of rubber particles and asphalt. The elastic deformation characteristics of the rubber particles can absorb the impact energy during vehicle travel, buffering the impact of vehicle traffic. The underlying structure is affected by the longitudinal arrangement of pre-installed water collection pipes 8, with permeable holes in the pipe walls. This allows for the rapid collection and drainage of infiltrated water, preventing moisture accumulation within the structure and avoiding problems such as softening and reduced strength of the base layer 1 caused by water damage. The wear layer 4 above the rubber asphalt mixture layer 3 is in direct contact with vehicle tires and bears direct wear. The wear-resistant aggregate 5 incorporated inside has high hardness and wear resistance. Through the interlocking effect between the aggregates, it improves the surface anti-skid performance and resists the shear force generated by vehicle rolling, extending the service life of the surface layer. The anti-aging agent 6 sprayed on the surface of the wear layer 4 forms a continuous film that can block ultraviolet radiation, reduce the damage of ultraviolet rays to asphalt molecules, slow down the asphalt oxidation process, and reduce the hardening and embrittlement of asphalt materials caused by high temperature and light, thereby reducing the surface cracking caused by this. The various layers complement each other through their material properties. The structural support of the base layer 1 and the buffer drainage of the rubber asphalt mixture layer 3 are combined with the wear resistance and anti-aging function of the wear layer 4 to achieve comprehensive protection against cracking, water, wear, and aging.

[0028] like Figures 1-4As shown, a support pipe 7 is installed inside the rubber asphalt mixture layer 3. The support pipe 7 inside the rubber asphalt mixture layer 3 is made of high-strength polymer material. Its rigid structure can disperse the pressure of vehicle load on the base layer 1, reduce the deformation of the mixture layer, and at the same time provide physical protection for the internal water collection pipe 8, preventing the water collection pipe 8 from being damaged by external pressure, and enhancing the stability of the drainage system. The water collection pipe 8 is set inside the support pipe 7. The support pipe 7 isolates the water collection pipe 8 from the direct pressure of the external mixture, ensuring that the drainage channel of the water collection pipe 8 is unobstructed, so that the water that seeps into the road surface can be quickly collected and discharged along the preset path, reducing the risk of water damage to each structural layer. A water outlet 9 is set on the side of the wear layer 4 near the water collection pipe 8. The outlet 9 on layer 4 is connected to the water collection pipe 8, forming a drainage terminal. Accumulated water is transported to the water collection pipe 8 through the outlet 9 to divert the water on the road and prevent water accumulation. A placement plate 10 is installed on the outlet 9. The placement plate 10 on the outlet 9 provides an installation base for the filter screen 11. Its rigid material can withstand the impact of vehicles running over it, fix the position of the filter screen 11, and ensure that the filter screen 11 will not fall off or move during long-term use, thus maintaining the structural integrity of the drainage outlet. The filter screen 11 is connected to the side of the placement plate 10 near the outlet 9. The filter screen 11 connected to the placement plate 10 is made of corrosion-resistant metal mesh, which can intercept road debris, sand and gravel, etc., from entering the outlet 9 and the water collection pipe 8, prevent pipe blockage, and ensure the long-term effective operation of the drainage system.

[0029] Working principle:

[0030] like Figures 1-5 As shown, this pavement structure achieves comprehensive protection through the synergistic effect of multiple materials. The base course 1 serves as the basic load-bearing layer, with internal basalt fibers 2 forming a mesh support structure. The interwoven fibers enhance crack resistance and load-bearing capacity, dispersing vehicle loads and reducing deformation, providing a stable foundation for the overall structure. The rubber asphalt mixture layer 3 on one side of the base course 1 serves a dual function of buffering and protection. Its rubber material absorbs vehicle impacts through elasticity, while the internal high-strength polymer support pipe 7 further disperses the load through a rigid structure, reducing pressure on the base course 1. The support pipe 7 is nested inside a water collection pipe 8, which not only isolates the water collection pipe 8 from external pressure through its own structure but also acts as a protective barrier for the drainage channel. Water accumulated on the surface of the wear layer 4 flows into the collection pipe 8 through the outlet 9. The corrosion-resistant metal filter 11 fixed by the placement plate 10 can intercept debris, prevent pipe blockage, and ensure that the accumulated water is quickly discharged along the collection pipe 8 inside the support pipe 7, reducing water damage from the source. The wear layer 4 directly bears the road wear. The wear-resistant aggregate 5 inside improves the anti-skid and anti-rolling performance through its high hardness characteristics. The surface anti-aging agent 6 forms a protective film, blocking ultraviolet rays and delaying asphalt oxidation, reducing hardening cracks. The nesting of the support pipe 7 and the collection pipe 8 not only strengthens the structural stability of the mixture layer, but also ensures the long-term operation of the drainage system. Combined with the interception function of the filter 11, it realizes the complementary performance and synergistic protection of the various structural layers of the road.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A durable asphalt pavement structure, comprising a base course (1), characterized in that, The base layer (1) is provided with basalt fiber (2), a rubber asphalt mixture layer (3) is provided on one side of the base layer (1), a wear layer (4) is provided on the side of the rubber asphalt mixture layer (3) away from the base layer (1), wear-resistant aggregate (5) is provided in the wear layer (4), an anti-aging agent (6) is provided on the wear layer (4), and a water collection pipe (8) is provided in the rubber asphalt mixture layer (3).

2. The durable asphalt pavement structure according to claim 1, characterized in that: A support pipe (7) is installed inside the rubber asphalt mixture layer (3).

3. The durable asphalt pavement structure according to claim 2, characterized in that: The water collection pipe (8) is installed inside the support pipe (7).

4. The durable asphalt pavement structure according to claim 1, characterized in that: A water outlet (9) is provided on the side of the wear layer (4) near the water collection pipe (8).

5. The durable asphalt pavement structure according to claim 4, characterized in that: A placement plate (10) is provided on the outlet (9).

6. The durable asphalt pavement structure according to claim 5, characterized in that: A filter screen (11) is connected to the side of the placement plate (10) near the water outlet (9).

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