Anti-rutting asphalt pavement

Abstract

The utility model relates to the technical field of road engineering, and discloses an anti-rutting asphalt pavement. The road comprises a road body, a base layer is arranged at the lower end of the road body, a bonding layer is arranged at the upper end of the base layer, an anti-rutting functional layer is arranged at the upper end of the bonding layer, an intelligent temperature adjusting layer is arranged at the upper end of the anti-rutting functional layer, a wearing layer is arranged at the upper end of the intelligent temperature adjusting layer, and a modified asphalt bonding layer is arranged at the lower end of the interior of the bonding layer. An emulsified asphalt permeable layer is arranged at the upper end of the modified asphalt bonding layer, a lower anti-rut core layer is arranged at the lower end of the interior of the anti-rut functional layer, an upper anti-skid wear-resistant layer is arranged at the upper end of the lower anti-rut core layer, a heat storage layer is arranged at the lower end of the interior of the intelligent temperature adjusting layer, and a heat conduction layer is arranged at the upper end of the heat storage layer. The anti-rut performance of the asphalt pavement is effectively improved, the service life of the pavement is greatly prolonged, meanwhile, pavement diseases caused by temperature change are reduced, and the energy consumption is reduced.

Description

Technical Field

[0001] This application belongs to the field of road engineering technology, specifically anti-rutting asphalt pavement. Background Technology

[0002] With the acceleration of urbanization and the booming development of the transportation industry, traffic flow continues to increase, vehicle loads are constantly increasing, and rutting damage on asphalt pavements is becoming increasingly serious. Rutting is a common defect in asphalt pavements, which is a permanent groove-shaped deformation of the pavement caused by repeated traffic loads under certain environmental conditions, especially in high-temperature seasons.

[0003] Rutting on asphalt pavement is determined by the rheological properties of asphalt materials. Minor rutting does not affect driving safety, but once the rutting depth exceeds 15mm, it will not only cause water accumulation, thinning of the structure, and cracking, directly affecting driving comfort and safety, but also affect the durability of the pavement structure.

[0004] However, traditional asphalt pavements have limited resistance to rutting. Asphalt softens easily at high temperatures, and repeated vehicle loads cause permanent deformation of the pavement, forming ruts, which reduces the service life of the road and increases maintenance costs. Utility Model Content

[0005] The purpose of this application is to address the aforementioned problems of limited rutting resistance of traditional asphalt pavements, easy softening of asphalt at high temperatures, and permanent deformation of the pavement due to repeated vehicle loads, which reduces the service life of the road and increases maintenance costs, by providing rutting-resistant asphalt pavements.

[0006] The technical solution adopted in this application is as follows: anti-rutting asphalt pavement, including a road body, a base course at the lower end of the road body, an adhesive layer at the upper end of the base course, an anti-rutting functional layer at the upper end of the adhesive layer, an intelligent temperature regulating layer at the upper end of the anti-rutting functional layer, and a wear layer at the upper end of the intelligent temperature regulating layer.

[0007] By adopting the above technical solutions, the combined effect of each layer effectively improves the asphalt pavement's resistance to rutting, significantly extends the pavement's service life, reduces pavement damage caused by temperature changes, and lowers energy consumption.

[0008] In a preferred embodiment, a modified asphalt adhesive layer is provided at the lower inner end of the adhesive layer, and an emulsified asphalt tack coat is provided at the upper end of the modified asphalt adhesive layer.

[0009] By adopting the above technical solutions, the emulsified asphalt in the modified asphalt bonding layer can penetrate into the pores on the surface of the base course, enhancing the bonding effect between the base course and the anti-rutting functional layer. It can seal the surface of the base course to prevent moisture infiltration. The emulsified asphalt tack coat can strengthen the bonding force between the base course and the intelligent temperature regulating layer, ensuring that all layers of the pavement structure work closely together to form a stable whole.

[0010] In a preferred embodiment, a lower anti-rutting core layer is provided at the lower end of the anti-rutting functional layer, and an upper anti-skid and wear-resistant layer is provided at the upper end of the lower anti-rutting core layer.

[0011] By adopting the above technical solution, adding appropriate amounts of polymer additives and reinforcing fibers to the upper anti-skid and wear-resistant layer can improve the anti-skid performance and surface wear resistance of the road surface. Adding high-performance polymer additives to the lower anti-rutting core layer can effectively improve the physical properties of asphalt and significantly enhance its high-temperature stability and deformation resistance.

[0012] In a preferred embodiment, a heat storage layer is provided at the lower inner end of the intelligent temperature regulating layer, and a heat conducting layer is provided at the upper end of the heat storage layer.

[0013] By adopting the above technical solution, the heat storage layer uses crystalline hydrated salt phase change material. During high-temperature periods, it absorbs and stores heat from the road surface, reducing the road surface temperature, mitigating asphalt softening, and enhancing rutting resistance. During low-temperature periods, it releases the stored heat, preventing the road surface from cracking due to low-temperature shrinkage. The heat conduction layer enables the heat absorbed or released by the heat storage layer to be evenly transferred in the road structure, improving the overall temperature regulation effect of the intelligent temperature regulation layer.

[0014] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0015] In this application, the cooperation of each layer effectively improves the asphalt pavement's resistance to rutting, significantly extends the pavement's service life, and enables intelligent temperature regulation of the pavement temperature, reducing pavement damage caused by temperature changes and lowering energy consumption. The structural layers are tightly connected by an adhesive layer, and the subdivided layers within each layer cooperate with each other, further enhancing the integrity and stability of the pavement structure and ensuring the long-term performance of the pavement. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the road in this application;

[0017] Figure 2 This is a schematic diagram of the planar structure of the adhesive layer in this application;

[0018] Figure 3 This is a schematic diagram of the planar structure of the anti-rutting functional layer in this application;

[0019] Figure 4 This is a schematic diagram of the planar structure of the intelligent temperature regulating layer in this application.

[0020] The markings in the diagram are: 1. Main road structure; 2. Base layer; 3. Bonding layer; 4. Anti-rutting functional layer; 5. Intelligent temperature regulating layer; 6. Wear layer; 7. Modified asphalt bonding layer; 8. Emulsified asphalt prime coat; 9. Lower anti-rutting core layer; 10. Upper anti-skid and wear-resistant layer; 11. Heat storage layer; 12. Heat conducting layer. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0022] Reference Figure 1-4 The rutting-resistant asphalt pavement includes a road body 1, a base course 2 at the lower end of the road body 1, an adhesive layer 3 at the upper end of the base course 2, an rutting-resistant functional layer 4 at the upper end of the adhesive layer 3, an intelligent temperature-regulating layer 5 at the upper end of the rutting-resistant functional layer 4, and a wear-resistant layer 6 at the upper end of the intelligent temperature-regulating layer 5. With the cooperation of each layer, the asphalt pavement's ability to resist rutting is effectively improved, the service life of the pavement is greatly extended, and at the same time, pavement damage caused by temperature changes is reduced, and energy consumption is reduced.

[0023] Reference Figure 2 A modified asphalt bonding layer 7 is provided at the lower end of the inner part of the bonding layer 3, and an emulsified asphalt tack coat 8 is provided at the upper end of the modified asphalt bonding layer 7. The emulsified asphalt in the modified asphalt bonding layer 7 can penetrate into the pores on the surface of the base layer 2, enhance the bonding effect between the base layer 2 and the anti-rutting functional layer 4, and seal the surface of the base layer 2 to prevent water seepage. The emulsified asphalt tack coat 8 can strengthen the bonding force between the base layer 2 and the intelligent temperature regulating layer 5, ensuring that the various layers of the pavement structure work closely together to form a stable whole.

[0024] Reference Figure 3 The lower end of the anti-rutting functional layer 4 is provided with a lower anti-rutting core layer 9, and the upper end of the lower anti-rutting core layer 9 is provided with an upper anti-skid and wear-resistant layer 10. The upper anti-skid and wear-resistant layer 10 contains an appropriate amount of polymer additives and reinforcing fibers, which can improve the anti-skid performance and surface wear resistance of the road surface. The lower anti-rutting core layer 9 contains high-performance polymer additives, which can effectively improve the physical properties of asphalt and significantly enhance its high-temperature stability and deformation resistance.

[0025] Reference Figure 4 The lower end of the intelligent temperature regulating layer 5 is provided with a heat storage layer 11, and the upper end of the heat storage layer 11 is provided with a heat conduction layer 12. The heat storage layer 11 is made of crystalline hydrated salt phase change material. During high temperature periods, it absorbs and stores heat from the road surface, reduces the road surface temperature, reduces the degree of asphalt softening, and enhances the resistance to rutting. During low temperature periods, it releases the stored heat to prevent the road surface from shrinking and cracking due to low temperature. The heat conduction layer 12 can make the heat absorbed or released by the heat storage layer 11 evenly transferred in the road structure, thereby improving the overall temperature regulation effect of the intelligent temperature regulating layer 5.

[0026] The implementation principle of the anti-rutting asphalt pavement embodiment of this application is as follows:

[0027] With the cooperation of each layer, the asphalt pavement's ability to resist rutting is effectively improved, and the service life of the pavement is greatly extended. The intelligent temperature regulating layer 5 realizes intelligent regulation of pavement temperature, reduces pavement damage caused by temperature changes, and reduces energy consumption. The structural layers are closely connected by the bonding layer 3, and the subdivided layers within each layer cooperate with each other, further improving the integrity and stability of the pavement structure and ensuring the long-term performance of the pavement.

[0028] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A rutting-resistant asphalt pavement, comprising a road body (1), characterized in that: The lower end of the road body (1) is provided with a base layer (2), the upper end of the base layer (2) is provided with an adhesive layer (3), the upper end of the adhesive layer (3) is provided with an anti-rutting functional layer (4), the upper end of the anti-rutting functional layer (4) is provided with an intelligent temperature regulating layer (5), and the upper end of the intelligent temperature regulating layer (5) is provided with a wear layer (6).

2. The rutting-resistant asphalt pavement as described in claim 1, characterized in that: The lower end of the inner part of the adhesive layer (3) is provided with a modified asphalt adhesive layer (7), and the upper end of the modified asphalt adhesive layer (7) is provided with an emulsified asphalt permeable layer (8).

3. The rutting-resistant asphalt pavement as described in claim 1, characterized in that: The lower end of the anti-rutting functional layer (4) is provided with a lower anti-rutting core layer (9), and the upper end of the lower anti-rutting core layer (9) is provided with an upper anti-skid and wear-resistant layer (10).

4. The rutting-resistant asphalt pavement as described in claim 1, characterized in that: The lower end of the intelligent temperature regulating layer (5) is provided with a heat storage layer (11), and the upper end of the heat storage layer (11) is provided with a heat conduction layer (12).

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