Composite seal coat for pavement maintenance
By using modified asphalt adhesive layer, synchronous gravel seal and anti-slip protection layer in the pavement maintenance composite seal, combined with planing and milling grooves and wire mesh layer structure, the problem of insufficient connection strength of the pavement layer is solved and the pavement is improved Stability and waterproof performance, and effective water treatment is achieved through drainage tanks and sand layers.
Patent Information
- Application Number
- CN202420425580.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-05
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-03-05
AI Technical Summary
Among the existing pavement maintenance composite seals, the connection strength of the pavement layer, composite layer and asphalt layer is low, resulting in insufficient pavement stability and waterproofing performance.
Modified emulsified asphalt adhesive layer, modified asphalt synchronous gravel sealing layer and mixed fine anti-slip protective layer are adopted, combined with planing and milling grooves, wire mesh layer and anchor structure to increase the contact area and connection strength of the pavement layer , and realize drainage and waterproof functions through drainage tank, waterproof layer and sand layer structure.
It improves the connection stability of the composite seal and the road surface, enhances waterproof performance, avoids the problem of slippage and deformation of the road surface, and achieves good drainage effect.
Smart Images
Figure CN222275128U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of composite sealing layers, in particular to a composite sealing layer used for road surface maintenance. Background Art
[0002] The fog seal technology is used for preventive maintenance of the road surface. A thin layer of diluted emulsified asphalt is sprayed on the road surface to reduce looseness and improve surface drying and weathering. The new asphalt acts on the aged surface and can extend the life of the road surface. In addition, the fog seal can seal small cracks and potholes and prevent water from entering the surface pores, improving the waterproof function of the road surface.
[0003] In the prior art with the publication (announcement) number: CN219992083U, a composite seal layer for road maintenance is proposed, including a road surface layer, a composite layer is arranged on the road surface layer, an asphalt layer is arranged above the composite layer, concrete bricks with drainage function are arranged at the bottom of both sides of the asphalt layer, the inner side of the concrete bricks is used to cooperate with the composite layer, water inlet holes are arranged on both sides of the asphalt layer, water outlet holes are arranged on the concrete bricks, and drainage grooves are arranged on the sides. The advantage of the utility model compared with the prior art is that the utility model adopts the above structure, and concrete bricks with drainage function are additionally arranged at the bottom of the road surface layer, which can effectively drain the accumulated water on both sides of the road surface into the sewer or ditch, avoiding the problem of slippery road surface caused by accumulated water on the road surface.
[0004] However, in the above-mentioned prior art, the pavement layer, the composite layer and the asphalt layer are directly stacked, and the connection strength between the layers is low. Therefore, a new composite sealing layer for pavement maintenance is proposed to optimize the above-mentioned prior art. Utility Model Content
[0005] The purpose of the utility model is to provide a composite seal layer for road maintenance to solve the problems raised in the above background technology.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A composite seal layer for pavement maintenance comprises a pavement layer, the top surface of the pavement layer is fixedly connected with a modified emulsified asphalt adhesive layer, the top surface of the modified emulsified asphalt adhesive layer is fixedly connected with a modified asphalt synchronous crushed stone seal layer, the top surface of the modified asphalt synchronous crushed stone seal layer is fixedly connected with a mixed fine anti-skid protective layer, the top surface of the pavement layer is provided with a planing and milling groove, the modified emulsified asphalt adhesive layer is laid in the planing and milling groove, a wire mesh layer is provided in the modified emulsified asphalt adhesive layer, an anchor rod passes through the steel mesh layer, the anchor rod is inserted into the pavement layer and fixedly connected to the pavement layer, a baffle is fixedly connected to the bottom surface of the anchor rod corresponding to the steel mesh layer, the top end of the anchor rod is threadedly connected with a clamping nut, the top end of the anchor rod is provided with an external thread, the clamping nut fits with the top surface of the steel mesh layer, and the steel mesh layer is provided with a hole matching the anchor rod.
[0008] As a further solution of the utility model: the modified emulsified asphalt adhesive layer is SBR modified emulsified asphalt, the modified asphalt synchronous gravel seal layer is a mixture of SBS modified asphalt and gravel, and the mixed fine anti-skid protective layer is polymer modified emulsified asphalt.
[0009] As a further solution of the utility model: a drainage mechanism is provided at the edge of the pavement layer, and the modified emulsified asphalt adhesive layer, the modified asphalt synchronous gravel seal layer and the mixed fine anti-skid protective layer are fixedly connected with a first waterproof layer on one side close to the drainage mechanism, and the drainage mechanism includes a drainage ditch fixedly connected to the pavement layer.
[0010] As a further solution of the utility model: a second waterproof layer is fixedly connected to the inner side of the drainage groove, and a fine sand layer is provided on the inner side of the second waterproof layer.
[0011] As a further solution of the utility model: a middle groove matching with the second waterproof layer is provided on the inner side of the top, first leakage holes are evenly opened at the bottom of the middle groove corresponding to the drainage groove, and a coarse sand layer is provided on the inner side of the middle groove.
[0012] As a further solution of the utility model: a top cover matching with the middle groove is arranged on the inner side of the top surface of the middle groove, and second water leakage holes are evenly arranged on the top cover corresponding to the middle groove.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The utility model increases the contact area of the top surface of the pavement layer by setting the planing and milling layer, and increases the surface connection with the modified emulsified asphalt adhesive layer, thereby increasing the connection firmness of the modified asphalt synchronous chipped stone seal layer, and further tightens the wire mesh layer by anchor rods, thereby further fixing the modified asphalt synchronous chipped stone seal layer and the pavement layer, making the connection between the composite seal layer and the pavement more stable.
[0015] 2. The utility model can conveniently drain water through the arrangement of the top cover, the middle groove and the drainage groove. At the same time, the arrangement of the first waterproof layer and the second waterproof chamber can effectively reduce the penetration of water into the road surface. The coarse sand layer and the fine sand layer filled inside can avoid the deformation of the road surface caused by the internal cavity. At the same time, it also has a good water seepage effect, so that the composite road surface sealing layer has a drainage function. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The present invention is a schematic diagram of the structure of a composite seal layer used for pavement maintenance.
[0017] Figure 2 This is an enlarged view of A in a composite seal layer used for pavement maintenance.
[0018] Figure 3 A partial schematic diagram of a composite seal layer used for pavement maintenance.
[0019] In the figure: 1. pavement layer; 2. modified emulsified asphalt adhesive layer; 3. modified asphalt synchronous crushed stone seal layer; 4. mixed fine anti-skid protective layer; 5. planing and milling groove; 6. wire mesh layer; 7. anchor rod; 8. baffle; 9. tightening nut; 10. drainage mechanism; 11. drainage groove; 12. second waterproof layer; 13. fine sand layer; 14. middle groove; 15. first leakage hole; 16. coarse sand layer; 17. top cover; 18. second leakage hole; 19. first waterproof layer. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figures 1 to 3In an embodiment of the utility model, a composite seal layer for pavement maintenance includes a pavement layer 1, a modified emulsified asphalt adhesive layer 2 is fixedly connected to the top surface of the pavement layer 1, a modified asphalt synchronous crushed stone seal layer 3 is fixedly connected to the top surface of the modified asphalt synchronous crushed stone seal layer 3, a mixed fine anti-skid protective layer 4 is fixedly connected to the top surface of the modified asphalt synchronous crushed stone seal layer 3, a planing and milling groove 5 is provided on the top surface of the pavement layer 1, the modified emulsified asphalt adhesive layer 2 is laid in the planing and milling groove 5, a steel mesh layer 6 is provided in the modified emulsified asphalt adhesive layer 2, an anchor rod 7 penetrates the steel mesh layer 6, the anchor rod 7 is inserted into the pavement layer 1 and fixedly connected to the pavement layer 1, a baffle 8 is fixedly connected to the bottom surface of the anchor rod 7 corresponding to the steel mesh layer 6, a clamping nut 9 is threadedly connected to the top end of the anchor rod 7, an external thread is provided on the top end of the anchor rod 7, the clamping nut 9 is fitted with the top surface of the steel mesh layer 6, and a hole matching the anchor rod 7 is provided on the steel mesh layer 6.
[0022] The top surface contact area of the pavement layer 1 is increased by setting the planing layer 5, and the surface connection is increased by cooperating with the modified emulsified asphalt adhesive layer 2, thereby increasing the connection firmness of the modified asphalt synchronous chipped stone seal layer 3. The wire mesh layer 6 is further tightened by the anchor rod 7, thereby further fixing the modified asphalt synchronous chipped stone seal layer 3 and the pavement layer 1, so that the connection between the composite seal layer and the pavement is more stable.
[0023] The modified emulsified asphalt adhesive layer 2 is SBR modified emulsified asphalt, the modified asphalt synchronous crushed stone seal layer 3 is a mixture of SBS modified asphalt and crushed stone, and the mixed fine anti-skid protective layer 4 is polymer modified emulsified asphalt.
[0024] A drainage mechanism 10 is provided at the edge of the pavement layer 1, and the modified emulsified asphalt adhesive layer 2, the modified asphalt synchronous gravel seal layer 3 and the mixed fine anti-skid protective layer 4 are fixedly connected to a first waterproof layer 19 on one side close to the drainage mechanism 10. The drainage mechanism 10 includes a drainage ditch 11 fixedly connected to the pavement layer 1.
[0025] A second waterproof layer 12 is fixedly connected to the inner side of the drainage groove 11 , and a fine sand layer 13 is provided on the inner side of the second waterproof layer 12 .
[0026] The inner side of the top of the second waterproof layer 12 is provided with a middle groove 14 adapted thereto, the middle layer 14 is pressed on the fine sand layer 13, the bottom of the middle groove 14 is evenly provided with first leakage holes 15 corresponding to the drainage groove 11, and the inner side of the middle groove 14 is provided with a coarse sand layer 16.
[0027] A top cover 17 matching the middle groove 14 is provided on the inner side of the top surface thereof. The top cover 17 is pressed on the coarse sand layer 16 . Second water leakage holes 18 are evenly arranged on the top cover 17 corresponding to the middle groove 14 .
[0028] The top cover 17, the middle groove 14 and the drainage groove 11 can be used to drain water conveniently. The first waterproof layer 19 and the second waterproof chamber 12 can effectively reduce the penetration of water into the road surface. The coarse sand layer 16 and the fine sand layer 13 filled inside can avoid road surface deformation caused by the internal cavity. At the same time, it also has a good water seepage effect, so that the composite road surface sealing layer has a drainage function.
[0029] The working principle of the utility model is:
[0030] When in use, the pavement layer 1 is planed and milled to form a planed groove 5, and a modified emulsified asphalt adhesive layer 2 is laid. At this time, the anchor rod 7 is installed, and the wire mesh layer 6 is further fixed by means of a baffle 8 and a tightening nut 9. At this time, a modified asphalt synchronous gravel seal layer 3 is laid and compacted, and a mixed fine anti-skid protective layer 4 is further laid. At this time, a first waterproof layer 19 is sprayed on the sides of the modified emulsified asphalt adhesive layer 2, the modified asphalt synchronous gravel seal layer 3, and the mixed fine anti-skid protective layer 4, and the drainage groove 11 is further fixed, and a second waterproof layer 12 is sprayed in the drainage groove 11, and a fine sand layer 13 is filled at the same time. The middle groove 14 is further placed on the drainage groove 11, and a coarse sand layer 16 is filled at the same time, and a top cover 17 is further covered. When it rains, rainwater will seep through the first leakage hole 15 and the second leakage hole 18, and be discharged through the middle groove 14 and the drainage groove 11, forming a drainage effect.
[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A composite seal for pavement maintenance, comprising a pavement layer (1), characterized in that: The top surface of the pavement layer (1) is fixedly connected with a modified emulsified asphalt adhesive layer (2), the top surface of the modified emulsified asphalt adhesive layer (2) is fixedly connected with a modified asphalt synchronous crushed stone seal layer (3), the top surface of the modified asphalt synchronous crushed stone seal layer (3) is fixedly connected with a mixed fine anti-skid protective layer (4), the top surface of the pavement layer (1) is provided with a planing groove (5), the modified emulsified asphalt adhesive layer (2) is laid in the planing groove (5), a steel mesh layer (6) is provided in the modified emulsified asphalt adhesive layer (2), an anchor rod (7) penetrates the steel mesh layer (6), the anchor rod (7) is inserted into the pavement layer (1) and is fixedly connected to the pavement layer (1), a baffle (8) is fixedly connected to the bottom surface of the anchor rod (7) corresponding to the steel mesh layer (6), the top end of the anchor rod (7) is threadedly connected with a clamping nut (9), and the clamping nut (9) is in contact with the top surface of the steel mesh layer (6).
2. The composite seal layer for pavement maintenance according to claim 1, characterized in that: The modified emulsified asphalt adhesive layer (2) is SBR modified emulsified asphalt, the modified asphalt synchronous crushed stone seal layer (3) is a mixture of SBS modified asphalt and crushed stone, and the mixed fine anti-skid protective layer (4) is polymer modified emulsified asphalt.
3. The composite seal layer for pavement maintenance according to claim 1, characterized in that: The edge of the pavement layer (1) is provided with a drainage mechanism (10); the modified emulsified asphalt adhesive layer (2), the modified asphalt synchronous crushed stone seal layer (3) and the mixed fine anti-skid protective layer (4) are fixedly connected to a first waterproof layer (19) on one side close to the drainage mechanism (10); and the drainage mechanism (10) includes a drainage groove (11) fixedly connected to the pavement layer (1).
4. The composite seal layer for pavement maintenance according to claim 3, characterized in that: A second waterproof layer (12) is fixedly connected to the inner side of the drainage groove (11), and a fine sand layer (13) is provided on the inner side of the second waterproof layer (12).
5. The composite seal layer for pavement maintenance according to claim 4, characterized in that: The inner side of the top of the second waterproof layer (12) is provided with a middle groove (14) adapted thereto, the bottom of the middle groove (14) is evenly provided with first leakage holes (15) corresponding to the drainage groove (11), and the inner side of the middle groove (14) is provided with a coarse sand layer (16).
6. The composite seal layer for pavement maintenance according to claim 5, characterized in that: A top cover (17) matching the middle groove (14) is provided on the inner side of the top surface thereof, and second water leakage holes (18) are evenly arranged on the top cover (17) corresponding to the middle groove (14).