Cold recycled asphalt pavement structure of road
By designing a pavement layer with a trapezoidal structure in the cold recycled asphalt pavement of the road, the problem of material waste during the construction process is solved, resource conservation and construction convenience are achieved, and the overall strength and drainage performance of the road are improved.
Patent Information
- Application Number
- CN202421374226.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-06-20
- Estimated Expiration
- 2034-06-17
AI Technical Summary
During the construction process of existing cold recycled asphalt pavement, construction materials are easily exceeded when added on both sides of the road, resulting in waste of materials and affecting resource conservation.
A road cold regenerated asphalt pavement structure is designed, including the base pavement, sand and gravel cushion layer, waterproof layer, bottom cold regenerated asphalt layer, leakage layer, top cold regenerated asphalt layer, reinforced isolation layer and concrete layer. All layers are set as trapezoidal structures, and the trapezoidal structure is used to increase the range margin of material addition to avoid material leakage.
Through the design of the trapezoidal structure, the scope of material addition during pavement is effectively increased, material leakage is avoided, resources are saved, construction is facilitated, and the overall strength and drainage performance of the road are improved.
Smart Images
Figure CN223003248U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of asphalt pavement, and particularly relates to a cold recycled asphalt pavement structure for roads. Background Art
[0002] The regeneration of asphalt pavement is divided into two categories: hot regeneration and cold regeneration. Compared with hot regeneration, the cold regeneration technology of asphalt concrete pavement has good economic and social benefits, has broad popularization and application space, is applicable to the renovation project of old oil roads, is conducive to saving resources and energy, saving the construction period, improving the quality and service life of highway projects, fully utilizing the old pavement materials, reducing environmental pollution, and improving the working conditions of construction personnel, so it is widely promoted and applied.
[0003] However, during the construction of the existing cold recycled asphalt pavement, when the construction materials are added on both sides of the road, it is easy to exceed the scope of the road, resulting in waste of construction materials and being unfavorable to resource conservation. Summary of the Utility Model
[0004] Therefore, the purpose of the utility model is to provide a cold recycled asphalt pavement structure for roads to solve the problems mentioned in the background art and overcome the deficiencies existing in the prior art.
[0005] To achieve the above purpose, an embodiment of one aspect of the utility model provides a cold recycled asphalt pavement structure for roads, including a base pavement. A cushion composed of sand and gravel is arranged at the top of the base pavement. A waterproof layer is arranged at the top of the cushion. A bottom cold recycled asphalt layer is arranged at the top of the waterproof layer. A leakage layer is arranged at the top of the bottom cold recycled asphalt layer. A top cold recycled asphalt layer is arranged at the top of the leakage layer. A reinforcement isolation layer is arranged at the top of the top cold recycled asphalt layer. A concrete layer is arranged at the top of the reinforcement isolation layer.
[0006] Preferably, from any of the above solutions, the cushion is located between the base pavement and the waterproof layer. Waterproof side plates are arranged on both sides of the waterproof layer, and the waterproof side plates are located on both sides of the base pavement and the cushion.
[0007] Adopting the above technical solution: a cushion is arranged on the base pavement to protect the base pavement, and a waterproof layer is arranged on the cushion to waterproof the pavement and guide the water leaking from the pavement to both sides of the base pavement.
[0008] Preferably, from any of the above solutions, the bottom cold recycled asphalt layer, the leakage layer, the top cold recycled asphalt layer, the reinforcement isolation layer and the concrete layer are all arranged in a trapezoidal structure, and the bottom cold recycled asphalt layer, the leakage layer, the top cold recycled asphalt layer, the reinforcement isolation layer and the concrete layer are distributed in a trapezoidal shape from bottom to top.
[0009] Preferably, according to any of the above solutions, the top surface size of the bottom cold recycled asphalt layer is the same as the bottom surface size of the leakage layer, and the top surface size of the leakage layer is the same as the bottom surface size of the top cold recycled asphalt layer.
[0010] Preferably, according to any of the above solutions, the top surface size of the top cold recycled asphalt layer is the same as the bottom surface size of the reinforcement isolation layer, and the top surface size of the reinforcement isolation layer is the same as the bottom surface size of the concrete layer.
[0011] Adopting the above technical solution: a trapezoidal structure road surface is formed by sequentially arranging a bottom cold recycled asphalt layer, a leakage layer, a top cold recycled asphalt layer, a reinforcement isolation layer and a concrete layer in a trapezoidal distribution above the waterproof layer, enabling the water on the road surface to leak along the trapezoidal structure, and the road surface width gradually decreasing, which can effectively increase the range margin of material addition during the road surface laying process, avoiding the waste caused by the material leaking out of the outer side of the road surface.
[0012] Preferably, according to any of the above solutions, both the bottom cold recycled asphalt layer and the top cold recycled asphalt layer are composed of cold recycled asphalt, and the leakage layer is composed of permeable concrete.
[0013] Preferably, according to any of the above solutions, the reinforcement isolation layer is composed of cement stabilized soil, and the surface of the concrete layer is paved with modified asphalt.
[0014] Adopting the above technical solution: a double-layer cold recycled asphalt structure is set to improve the quality of the road, and a leakage and reinforcement structure is set between the cold recycled asphalt structures to enhance the overall strength of the road and ensure the quality of the road.
[0015] Compared with the prior art, the advantages and beneficial effects of the present utility model are as follows:
[0016] 1. A waterproof structure layer is arranged inside the road, and a double-layer cold recycled asphalt structure layer with a trapezoidal distribution from bottom to top is arranged above the waterproof structure layer, and a structure layer for reinforcement and waterproofing is arranged between the double-layer cold recycled asphalt structure layers, so that the top end of the whole road is trapezoidally distributed. The trapezoidal road structure is used to increase the range space of material laying during the road construction process. As the road laying process progresses, the space margin of material laying gradually increases, avoiding the material being scattered to the outer side of the road during the construction process, which is beneficial to saving resources and facilitating the overall construction of the road.
[0017] 2. The trapezoidal structure of the road is set, which is convenient for the road to drain and leak along the trapezoidal structure, improving the drainage convenience of the road and being beneficial to enhancing the stability of the road.
[0018] Additional aspects and advantages of the present utility model will be partially given in the following description, partially becoming obvious from the following description, or understood through the practice of the present utility model. Description of the Drawings
[0019] The above and / or additional aspects and advantages of the present utility model will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, wherein:
[0020] Figure 1 is a schematic structural diagram according to an embodiment of the present utility model;
[0021] Figure 2 is a schematic cross-sectional structural diagram according to an embodiment of the present utility model
[0022] Wherein: 1 - base road surface, 2 - cushion layer, 3 - waterproof layer, 4 - bottom cold recycled asphalt layer, 5 - leakage layer, 6 - top cold recycled asphalt layer, 7 - reinforcement isolation layer, 8 - concrete layer. Detailed implementation manners
[0023] The following further describes the present utility model in conjunction with the drawings, but the protection scope of the present utility model is not limited to the following.
[0024] As Figure 1-2 shown, a cold recycled asphalt road surface structure according to an embodiment of the present utility model includes a base road surface 1, a cushion layer 2 composed of sand and gravel is arranged at the top end of the base road surface 1, a waterproof layer 3 is arranged at the top end of the cushion layer 2, a bottom cold recycled asphalt layer 4 is arranged at the top end of the waterproof layer 3, a leakage layer 5 is arranged at the top end of the bottom cold recycled asphalt layer 4, a top cold recycled asphalt layer 6 is arranged at the top end of the leakage layer 5, a reinforcement isolation layer 7 is arranged at the top end of the top cold recycled asphalt layer 6, and a concrete layer 8 is arranged at the top end of the reinforcement isolation layer 7.
[0025] Preferably, according to any of the above solutions, the cushion layer 2 is located between the base road surface 1 and the waterproof layer 3, waterproof side plates are arranged on both sides of the waterproof layer 3, and the waterproof side plates are located on both sides of the base road surface 1 and the cushion layer 2.
[0026] By adopting the above technical solution: a cushion layer 2 is arranged on the base road surface 1 to protect the base road surface 1, and a waterproof layer 3 is arranged on the cushion layer 2 to waterproof the road surface, and the water leaking from the road surface is guided to both sides of the base road surface 1.
[0027] Preferably, according to any of the above solutions, the bottom cold recycled asphalt layer 4, the leakage layer 5, the top cold recycled asphalt layer 6, the reinforcement isolation layer 7 and the concrete layer 8 are all arranged in a trapezoidal structure, and the bottom cold recycled asphalt layer 4, the leakage layer 5, the top cold recycled asphalt layer 6, the reinforcement isolation layer 7 and the concrete layer 8 are distributed in a trapezoidal shape from bottom to top.
[0028] Preferably, according to any of the above solutions, the top surface size of the bottom cold recycled asphalt layer 4 is the same as the bottom surface size of the leakage layer 5, and the top surface size of the leakage layer 5 is the same as the bottom surface size of the top cold recycled asphalt layer 6.
[0029] Preferably, according to any of the above solutions, the top surface size of the top cold recycled asphalt layer 6 is the same as the bottom surface size of the reinforcement isolation layer 7, and the top surface size of the reinforcement isolation layer 7 is the same as the bottom surface size of the concrete layer 8.
[0030] Adopting the above technical solution: A trapezoidal-structured road surface is formed by sequentially arranging a bottom cold recycled asphalt layer 4, a leakage layer 5, a top cold recycled asphalt layer 6, a reinforcement isolation layer 7, and a concrete layer 8 in a trapezoidal distribution above the waterproof layer 3. This enables water on the road surface to leak along the trapezoidal structure, and the road width gradually decreases, effectively increasing the range margin of material addition during road paving, avoiding material leakage outside the road surface and causing waste.
[0031] Preferably, according to any of the above solutions, both the bottom cold recycled asphalt layer 4 and the top cold recycled asphalt layer 6 are composed of cold recycled asphalt, and the leakage layer 5 is composed of permeable concrete.
[0032] Preferably, according to any of the above solutions, the reinforcement isolation layer 7 is composed of cement stabilized soil, and a modified asphalt is paved on the surface of the concrete layer 8.
[0033] Adopting the above technical solution: A double-layer cold recycled asphalt structure is set to improve the quality of the road, and a leakage and reinforcement structure is set between the cold recycled asphalt structures to enhance the overall strength of the road and ensure the quality of the road.
[0034] The working principle of a road cold recycled asphalt pavement structure of the present utility model is as follows:
[0035] A cushion layer 2 is paved on the base road surface 1, the waterproof layer 3 is paved on the cushion layer 2, and the bottom cold recycled asphalt layer 4, the leakage layer 5, the top cold recycled asphalt layer 6, the reinforcement isolation layer 7, and the concrete layer 8 are sequentially paved. The sides of the bottom cold recycled asphalt layer 4, the leakage layer 5, the top cold recycled asphalt layer 6, the reinforcement isolation layer 7, and the concrete layer 8 are smoothed to form an inclined surface distribution.
[0036] Compared with the prior art, the present utility model has the following beneficial effects compared to the prior art:
[0037] 1. A waterproof structure layer is provided inside the road, and a double-layer cold recycled asphalt structure layer with a trapezoidal distribution from bottom to top is provided above the waterproof structure layer. A structure layer for reinforcement and waterproofing is provided between the double-layer cold recycled asphalt structure layers, making the top of the road as a whole trapezoidally distributed. The trapezoidal road structure is used to increase the range space for material paving during road construction. As the road paving progresses, the space margin for material paving gradually increases, avoiding the material being scattered outside the road during construction, which is beneficial for resource conservation and convenient for the overall construction of the road.
[0038] 2. Set up the trapezoidal structure of the road to facilitate the drainage and seepage of water along the trapezoidal structure, improve the convenience of road drainage, and contribute to enhancing the stability of the road.
Claims
1. A road cold recycled asphalt pavement structure, characterized by: The invention comprises a base pavement (1), wherein a cushion layer (2) composed of sand and gravel is arranged on the top of the base pavement (1), a waterproof layer (3) is arranged on the top of the cushion layer (2), a bottom cold regenerated asphalt layer (4) is arranged on the top of the waterproof layer (3), a seepage layer (5) is arranged on the top of the bottom cold asphalt layer (4), a top cold regenerated asphalt layer (6) is arranged on the top of the seepage layer (5), a reinforced isolation layer (7) is arranged on the top of the top cold regenerated asphalt layer (6), and a concrete layer (8) is arranged on the top of the reinforced isolation layer (7), wherein the bottom cold regenerated asphalt layer (4) is provided with a seepage layer (5), a top cold regenerated asphalt layer (6) is provided with a reinforced isolation layer (7), and a top concrete layer (8) is provided on the top of the reinforced isolation layer (7). The cushion layer (2) is located between the base pavement (1) and the waterproof layer (3), and waterproof side panels are arranged on both sides of the waterproof layer (3). The waterproof side panels are located on both sides of the base pavement (1) and the cushion layer (2). The bottom cold regenerated asphalt layer (4), the seepage layer (5), the top cold regenerated asphalt layer (6), the reinforced isolation layer (7) and the concrete layer (8) are all arranged in a trapezoidal structure. The bottom cold regenerated asphalt layer (4), the seepage layer (5), the top cold regenerated asphalt layer (6), the reinforced isolation layer (7) and the concrete layer (8) are distributed in a trapezoidal shape from bottom to top.
2. A road cold regenerated asphalt pavement structure as claimed in claim 1, characterized in that: The top surface size of the bottom cold regenerated asphalt layer (4) is the same as the bottom surface size of the leakage layer (5), and the top surface size of the leakage layer (5) is the same as the bottom surface size of the top cold regenerated asphalt layer (6).
3. A road cold regenerated asphalt pavement structure as claimed in claim 2, characterized in that: The top surface size of the top cold recycled asphalt layer (6) is the same as the bottom surface size of the reinforced isolation layer (7), and the top surface size of the reinforced isolation layer (7) is the same as the bottom surface size of the concrete layer (8).
4. A road cold regenerated asphalt pavement structure as claimed in claim 3, characterized in that: The bottom cold regenerated asphalt layer (4) and the top cold regenerated asphalt layer (6) are both made of cold regenerated asphalt, and the seepage layer (5) is made of permeable concrete.
5. A road cold regenerated asphalt pavement structure as claimed in claim 4, characterized in that: The reinforced isolation layer (7) is composed of cement-stabilized soil, and the surface of the concrete layer (8) is paved with modified asphalt.