Novel waterproof thin overlay structure of asphalt pavement
By designing a multi-layered waterproof and support structure on the asphalt pavement, the problem of poor compressive strength caused by rainwater infiltration is solved, extending the service life of the pavement and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEILONGJIANG JIAOTOU HIGHWAY CONSTR INVESTMENT CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-04-17
AI Technical Summary
Existing asphalt pavements have poor compressive strength, and rainwater can easily penetrate into the pavement, resulting in a short service life, easy damage to the pavement, and increased operating costs.
A novel waterproof thin-layer overlay structure is designed, comprising a multi-layer structure consisting of a U-shaped waterproof base layer, a supporting base layer, a lime-soil flat layer, a steel wire crushed brick layer, an inverted U-shaped waterproof recycled interlayer, hollow steel, and triangular steel. Through the combination of these layers for waterproofing and support, a 3cm thin overlay is formed, improving the waterproof performance and compressive strength of the road surface.
It effectively prevents rainwater from seeping into the road surface, extends the road's service life, and reduces maintenance costs.
Smart Images
Figure CN224133492U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of overlay structures, and in particular to a novel waterproof thin-layer overlay structure for asphalt pavements. Background Technology
[0002] Asphalt pavement refers to various types of pavement constructed by incorporating road asphalt materials into mineral materials. Asphalt binders improve the ability of paving aggregates to resist damage to the pavement from traffic and natural factors, resulting in a smooth, dust-free, impermeable, and durable pavement.
[0003] Existing asphalt pavements have poor compressive strength, and rainwater can easily penetrate into the pavement, resulting in a short service life and easy damage, which in turn increases the cost for users.
[0004] Therefore, in view of the fact that rainwater can easily penetrate into the interior of existing asphalt pavements, resulting in poor compressive strength, a new type of waterproof thin-layer overlay structure for asphalt pavements can be designed to solve the above problems. Utility Model Content
[0005] To overcome the shortcomings of existing asphalt pavements, such as rainwater easily penetrating into the pavement, resulting in poor compressive strength, short service life, easy damage, and increased costs for users.
[0006] The technical solution of this utility model is as follows: a novel waterproof thin-layer overlay structure for asphalt pavement, comprising a U-shaped waterproof base layer, a supporting base layer, a lime-soil flat layer, a steel wire crushed brick layer, an inverted U-shaped waterproof recycled interlayer, hollow steel, triangular steel, an asphalt felt layer, and an asphalt layer. Supporting base layers are provided on both sides of the interior of the U-shaped waterproof base layer. A lime-soil flat layer is provided at the upper end of the supporting base layer. A steel wire crushed brick layer is provided at the upper end of the lime-soil flat layer. An asphalt felt layer is provided at the upper end of the steel wire crushed brick layer. An inverted U-shaped waterproof recycled interlayer is provided between the asphalt felt layers. Hollow steel is provided inside the inverted U-shaped waterproof recycled interlayer. Triangular steel is provided at the upper end of the hollow steel. An asphalt layer is provided at the upper end of the inverted U-shaped waterproof recycled interlayer.
[0007] Preferably, the U-shaped waterproof base layer is configured as an upright U-shaped structure, and the inverted U-shaped waterproof recycled interlayer is configured as an inverted U-shaped structure.
[0008] Preferably, the supporting base layer, the lime-soil flat layer, the steel wire brick layer, and the asphalt felt layer are arranged on both sides of the inverted U-shaped waterproof recycled interlayer and fixed inside the U-shaped waterproof base layer.
[0009] Preferably, hollow steel and triangular steel are placed inside the inverted U-shaped waterproof recycled interlayer.
[0010] As a preferred option, hollow steel is filled with cement gravel, and triangular steel is filled with asphalt gravel.
[0011] Preferably, the hollow steel is set as a square hollow structure, and a total of four are set; the triangular steel is set as a triangular hollow structure, and a total of sixteen are set.
[0012] Preferably, the asphalt layer is placed at the upper end of the U-shaped waterproof base layer and the inverted U-shaped waterproof recycled interlayer.
[0013] The beneficial effects of this utility model are:
[0014] 1. A U-shaped waterproof base layer is used to protect the bottom from water damage, while a supporting base layer provides overall support. A lime-soil flat layer is used for fixation, and the upper end of the steel wire and crushed brick layer is reinforced with crushed bricks. An inverted U-shaped waterproof recycled interlayer provides waterproof protection at the top. Hollow steel and triangular steel are used for reinforcement, and cement-aggregate and asphalt-aggregate are respectively installed inside for further reinforcement to prevent internal collapse. An asphalt felt layer and an asphalt layer provide top waterproof protection and ensure proper contact. This device utilizes a 3cm thin overlay technology. This overcomes the shortcomings of existing asphalt pavements where rainwater easily penetrates the pavement, resulting in poor compressive strength, short service life, and easy damage, thus increasing costs for users. Attached Figure Description
[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of the thin-layer overlay structure for asphalt pavement according to this utility model.
[0016] Figure 2 The diagram shown is a schematic diagram of the asphalt layer of the thin-layer overlay structure for asphalt pavement according to this utility model.
[0017] Figure 3 The diagram shown is a schematic of the inverted U-shaped waterproof and recycled interlayer structure of the asphalt pavement thin overlay of this utility model.
[0018] Figure 4 The diagram shown is a schematic of the steel wire brick layer structure of the thin overlay structure for asphalt pavement according to this utility model.
[0019] Explanation of reference numerals in the attached drawings: 1. U-shaped waterproof base layer; 2. Supporting base layer; 3. Lime-soil flat layer; 4. Steel wire and broken brick layer; 5. Inverted U-shaped waterproof recycled interlayer; 6. Hollow steel; 7. Triangular steel; 8. Asphalt felt layer; 9. Asphalt layer. Detailed Implementation
[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0021] Please see Figures 1-4This utility model provides an embodiment of a novel waterproof thin-layer overlay structure for asphalt pavement, comprising a U-shaped waterproof base layer 1, a supporting base layer 2, a soil-lime flat layer 3, a steel wire crushed brick layer 4, an inverted U-shaped waterproof recycled interlayer 5, hollow steel 6, triangular steel 7, an asphalt felt layer 8, and an asphalt layer 9. The supporting base layer 2 is provided on both sides of the interior of the U-shaped waterproof base layer 1. A soil-lime flat layer 3 is provided at the upper end of the supporting base layer 2. A steel wire crushed brick layer 4 is provided at the upper end of the soil-lime flat layer 3. An asphalt felt layer 8 is provided at the upper end of the steel wire crushed brick layer 4. An inverted U-shaped waterproof recycled interlayer 5 is provided between the asphalt felt layers 8. A hollow steel 6 is provided inside the inverted U-shaped waterproof recycled interlayer 5. A triangular steel 7 is provided at the upper end of the hollow steel 6. An asphalt layer 9 is provided at the upper end of the inverted U-shaped waterproof recycled interlayer 5. The U-shaped waterproof base layer 1 provides waterproof protection for the bottom, and the supporting base layer 2 provides overall support. The soil-lime flat layer 3 is fixed, and the upper end of the steel wire crushed brick layer 4 is reinforced with crushed bricks. The U-shaped waterproof base layer 1 is configured as a regular U-shape, and the inverted U-shaped waterproof recycled interlayer 5 is configured as an inverted U-shape. The supporting base layer 2, the lime-soil flat layer 3, the steel wire crushed brick layer 4, and the asphalt felt layer 8 are positioned on both sides of the inverted U-shaped waterproof recycled interlayer 5 and fixed inside the U-shaped waterproof base layer 1. Hollow steel 6 and triangular steel 7 are positioned inside the inverted U-shaped waterproof recycled interlayer 5. The hollow steel 6 contains cement-aggregate, and the triangular steel 7 contains asphalt-aggregate. Four hollow steel 6 are square hollow structures, and sixteen triangular steel 7 are triangular hollow structures. The asphalt layer 9 is positioned at the upper end of the U-shaped waterproof base layer 1 and the inverted U-shaped waterproof recycled interlayer 5. The inverted U-shaped waterproof recycled interlayer 5 provides top waterproof protection. The hollow steel 6 and triangular steel 7 provide reinforcement and support, and are reinforced with cement-aggregate and asphalt-aggregate respectively to prevent internal collapse. The asphalt felt layer 8 and asphalt layer 9 provide top waterproof protection and contact protection.
[0022] During the work, the U-shaped waterproof base layer 1 provides waterproof protection for the bottom, while the supporting base layer 2 provides overall support. The lime-soil flat layer 3 is fixed, and the upper end of the steel wire and crushed brick layer 4 is reinforced with crushed bricks. The inverted U-shaped waterproof recycled interlayer 5 provides waterproof protection for the top. Hollow steel 6 and triangular steel 7 provide reinforcement support, and cement crushed stone and asphalt crushed stone are respectively installed inside for reinforcement to prevent internal collapse. The asphalt felt layer 8 and asphalt layer 9 provide top waterproof protection and ensure contact with the surface, completing all the work.
[0023] Through the above steps, a U-shaped waterproof base layer 1 is installed to provide waterproof protection for the bottom, and a supporting base layer 2 provides overall support. A lime-soil flat layer 3 is used for fixation, and the upper end of the steel wire and crushed brick layer 4 is reinforced with crushed bricks. An inverted U-shaped waterproof recycled interlayer 5 provides waterproof protection for the top. Hollow steel 6 and triangular steel 7 provide reinforcement support, and cement crushed stone and asphalt crushed stone are respectively installed inside for reinforcement to prevent internal collapse. Asphalt felt layers 8 and 9 provide top waterproof protection and ensure contact with the surface. This device utilizes a 3cm thin overlay technology. This overcomes the shortcomings of existing asphalt pavements where rainwater easily penetrates the pavement, resulting in poor compressive strength, short service life, and easy damage, thus increasing costs for users.
[0024] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A waterproof thin layer cover structure of a new asphalt pavement, comprising a U-shaped waterproof base layer (1), characterized in that: It also includes a supporting base layer (2), a soil-lime flat plate layer (3), a steel wire brick layer (4), an inverted U-shaped waterproof recycled interlayer (5), a hollow steel (6), a triangular steel (7), an asphalt felt layer (8), and an asphalt layer (9). The supporting base layer (2) is provided on both sides inside the U-shaped waterproof base layer (1). The soil-lime flat plate layer (3) is provided at the upper end of the supporting base layer (2). The steel wire brick layer (4) is provided at the upper end of the soil-lime flat plate layer (3). The asphalt felt layer (8) is provided at the upper end of the steel wire brick layer (4). The inverted U-shaped waterproof recycled interlayer (5) is provided between the asphalt felt layers (8). The hollow steel (6) is provided inside the inverted U-shaped waterproof recycled interlayer (5). The triangular steel (7) is provided at the upper end of the hollow steel (6). The asphalt layer (9) is provided at the upper end of the inverted U-shaped waterproof recycled interlayer (5).
2. The novel waterproof thin-layer overlay structure for asphalt pavement according to claim 1, characterized in that: The U-shaped waterproof base layer (1) is set as a regular U-shaped structure, and the inverted U-shaped waterproof recycled interlayer (5) is set as an inverted U-shaped structure.
3. The waterproof thin layer cover structure of the new type asphalt pavement according to claim 1, characterized in that: The supporting base layer (2), the lime-soil flat layer (3), the steel wire crushed brick layer (4) and the asphalt felt layer (8) are set on both sides of the inverted U-shaped waterproof recycled interlayer (5) and fixed inside the U-shaped waterproof base layer (1).
4. The waterproof thin layer cover structure of the new type asphalt pavement according to claim 1, characterized in that: Hollow steel (6) and triangular steel (7) are set inside the inverted U-shaped waterproof recycled interlayer (5).
5. The waterproof thin layer cover structure of the new type asphalt pavement according to claim 1, characterized in that: The hollow steel (6) is filled with cement gravel, and the triangular steel (7) is filled with asphalt gravel.
6. The waterproof thin layer cover structure of the new type asphalt pavement according to claim 1, characterized in that: Hollow steel (6) is set as a square hollow structure, and there are four of them. Triangular steel (7) is set as a triangular hollow structure, and there are sixteen of them.
7. The novel waterproof thin-layer overlay structure for asphalt pavement according to claim 1, characterized in that: The asphalt layer (9) is placed at the upper end of the U-shaped waterproof base layer (1) and the inverted U-shaped waterproof recycled interlayer (5).