Asphalt concrete pavement capable of avoiding cracking

Abstract

The utility model discloses an asphalt concrete pavement that can avoid cracking, including an asphalt layer, the asphalt layer is located above the concrete layer, water guide frames are bonded on both sides of the asphalt layer, the water guide frames are fixedly connected with a retaining frame, the retaining frame is provided with a drainage groove, the inner side of the retaining frame is provided with a drainage hole, the concrete layer is fixedly connected with a tear-resistant cloth b, the tear-resistant cloth b is located above the impact-resistant pad, the impact-resistant pad is bonded with a tear-resistant cloth a, the tear-resistant cloth a is located above the honeycomb frame, the honeycomb frame is located above the gravel layer, the gravel layer is located above the waterproof board, the surface of the waterproof board is provided with a water guide groove, and the waterproof board is bonded with a waterproof pad. The tear-resistant cloth b, the impact-resistant pad, the tear-resistant cloth a and the honeycomb frame cooperate to have a good tear resistance to avoid cracking of the road surface; the water guide frame, the drainage groove, the drainage hole and the water guide groove on the waterproof board cooperate to avoid water accumulation on the road surface.

Description

Technical Field

[0001] The utility model relates to an asphalt concrete pavement capable of avoiding cracking, in particular to an asphalt concrete pavement capable of avoiding cracking, and belongs to the technical field of asphalt concrete pavements. Background Art

[0002] Asphalt concrete pavement refers to a pavement with asphalt concrete as the surface layer. It is a mixture of artificially selected mineral materials (crushed stone or crushed gravel, stone chips or sand, mineral powder, etc.) with a certain graded composition and a certain proportion of road asphalt materials, mixed under strictly controlled conditions. In terms of construction technology, the maximum particle size of the asphalt concrete surface layer aggregate should match the thickness of the layered compaction layer.

[0003] The asphalt concrete pavement of the prior art has the following disadvantages: 1. When vehicles continue to pass by the asphalt concrete pavement, the pavement is prone to cracking under the action of the driving load; 2. The drainage performance of the asphalt concrete pavement is weak, and the accumulated water is not discharged for a long time, which affects the pavement strength. Therefore, improvements are made to the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide an asphalt concrete pavement that can avoid cracking in order to solve the above-mentioned problem. The tear-resistant cloth b, the impact-resistant pad, the tear-resistant cloth a and the honeycomb frame cooperate to have good tear resistance to avoid cracking of the road surface; the water guide frame, the drainage groove, the drainage hole and the water guide groove on the waterproof board cooperate to avoid water accumulation on the road surface.

[0005] The utility model achieves the above-mentioned purpose through the following technical scheme: an asphalt concrete pavement that can avoid cracking, comprising an asphalt layer, wherein the asphalt layer is located above a concrete layer, water guide frames are bonded on both sides of the asphalt layer, the water guide frames are fixedly connected to retaining frames, the retaining frames are provided with drainage grooves, and drainage holes are provided on the inner side of the retaining frames, the concrete layer is fixedly connected to tear-resistant cloth b, the tear-resistant cloth b is located above an impact-resistant pad, the impact-resistant pad is bonded with tear-resistant cloth a, the tear-resistant cloth a is located above a honeycomb frame, the honeycomb frame is located above a sand and gravel layer, the sand and gravel layer is located above a waterproof board, the surface of the waterproof board is provided with a water guide groove, and the waterproof board is bonded with a waterproof pad.

[0006] Preferably, the waterproof pad is located above the road base layer, and the water guide frame is provided with a water inlet groove.

[0007] Preferably, the tear-resistant cloth a is made of ultra-high molecular weight polyethylene fiber, and the tear-resistant cloth b is made of aramid.

[0008] Preferably, the anti-impact pad is fixedly connected with a convex strip, and a phase change material is filled between the tear-resistant cloth b and the anti-impact pad.

[0009] Preferably, the impact-resistant pad is provided with a groove, and the groove is filled with filling stones.

[0010] Preferably, the honeycomb frame is filled with filling sand, and the water inlet trough and the drainage trough are interconnected.

[0011] The beneficial effects of the utility model are:

[0012] The tear-resistant cloth b, the impact-resistant pad, the tear-resistant cloth a and the honeycomb frame cooperate to have good tear resistance to prevent cracking of the road surface; the road is composed of an asphalt layer, a concrete layer, a tear-resistant layer b, an impact-resistant pad, a tear-resistant cloth a, a honeycomb frame, a gravel layer, a waterproof board, a waterproof pad and a road base layer. The tear-resistant cloth b is made of aramid, which has excellent properties such as ultra-high strength, high modulus, high temperature resistance, acid and alkali resistance, etc. Its strength is 5 to 6 times that of steel wire, its modulus is 2 to 3 times that of steel wire or glass fiber, and its toughness is 2 times that of steel wire. The impact-resistant pad is made of high-impact polystyrene, which is added with micron-sized rubber particles and the polystyrene and rubber particles are connected together by grafting. When impacted, the tip stress of the crack extension will be released by the relatively soft rubber particles, so the expansion of the crack is hindered and the impact resistance is improved, which can make it have good impact resistance and absorb the impact force of vehicles passing on the road. The honeycomb frame below can also absorb the impact, which can reduce the impact on the road surface and avoid cracking. The material of the tear-resistant cloth a is ultra-high molecular weight polyethylene fiber, which has high specific strength, high specific modulus, low elongation at break, large fracture work, and strong energy absorption ability. Therefore, it has outstanding impact resistance and cutting resistance, and can be combined with the tear-resistant cloth b to improve the overall anti-cracking ability.

[0013] The cooperation of the water guide frame, drainage groove, drainage hole and water guide groove on the waterproof board can avoid water accumulation on the road surface; the frame is fixed on both sides of the road, and drainage groove is opened inside, and drainage holes are opened on the inner surface of the frame. The water guide frame fixed on the top of the frame is located on both sides of the asphalt layer, and the water inlet groove and drainage groove opened on the water guide frame are interconnected. The accumulated water on the road surface can enter the drainage groove along the water inlet groove, and when the water continues to move downward through the asphalt layer and the concrete layer, it can continue to enter the frame through the drainage holes on both sides. The surface of the bottom roadbed of the road is provided with waterproof mats and waterproof boards, which have good waterproof effect and can avoid water from continuously penetrating downward, and the surface of the waterproof board is provided with transverse water guide grooves. The water that penetrates into the bottom flows to both sides along the water guide grooves and enters the frame through the drainage holes, so as to avoid water accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 For this utility model Figure 1 The enlarged view of point A in the middle;

[0016] Figure 3 It is a schematic diagram of a partially sectional structure of a top view of the impact-resistant pad of the utility model.

[0017] In the figure: 1. water guide frame; 2. asphalt layer; 3. water inlet trough; 4. retaining frame; 5. drainage trough; 6. concrete layer; 7. drainage hole; 8. road base layer; 9. waterproof pad; 10. waterproof board; 11. gravel layer; 12. honeycomb frame; 13. tear-resistant cloth a; 14. tear-resistant cloth b; 15. phase change material; 16. impact-resistant pad; 17. convex strip; 18. groove; 19. filling stone; 20. water guide trough; 21. filling sand. DETAILED DESCRIPTION

[0018] 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.

[0019] Example 1 Please refer to Figure 1-3 As shown, an asphalt concrete pavement that can avoid cracking includes an asphalt layer 2, the asphalt layer 2 is located above a concrete layer 6, water guide frames 1 are bonded on both sides of the asphalt layer 2, the water guide frames 1 are located on both sides of the asphalt layer 2, the water guide frames 1 are fixedly connected to retaining frames 4, the retaining frames 4 are located on both sides of the road, the retaining frames 4 are provided with drainage grooves 5, water enters the drainage grooves 5, and is discharged outward through the drainage grooves 5, the retaining frames 4 are provided with drainage holes 7 on the inner side, the water in the road enters the drainage grooves 5 through the drainage holes 7, the concrete layer 6 A tear-resistant cloth b14 is fixedly connected, and the tear-resistant cloth b14 is located above the impact-resistant pad 16, and the impact-resistant pad 16 is bonded with a tear-resistant cloth a13, and the tear-resistant cloth a13 is located above the honeycomb frame 12, and the honeycomb frame 12 is located above the sand and gravel layer 11, and the sand and gravel layer 11 is located above the waterproof board 10. A water guide groove 20 is opened on the surface of the waterproof board 10, and the transverse water guide groove 20 can lead water to both sides and send it into the drainage groove 5 through the drainage hole 7. The waterproof board 10 is bonded with a waterproof pad 9.

[0020] Specifically, the waterproof pad 9 is located above the road base layer 8 , and the waterproof pad 9 has good waterproof performance. The water guide frame 1 is provided with a water inlet groove 3 .

[0021] Specifically, the material of the tear-resistant cloth a13 is ultra-high molecular weight polyethylene fiber. Both the tear-resistant cloth a13 and the tear-resistant cloth b14 have good tear resistance. The material of the tear-resistant cloth b14 is aramid.

[0022] Specifically, the anti-impact pad 16 is fixedly connected with a convex strip 17, and a plurality of convex strips 17 are fixed on the surface of the anti-impact pad 16. The phase change material 15 is filled between the tear-resistant cloth b14 and the anti-impact pad 16. The phase change material 15 can absorb heat and release heat to the outside when the temperature is low.

[0023] Specifically, the honeycomb frame 12 is filled with filling sand 21 , and the honeycomb frame 12 is in a honeycomb shape. The water inlet groove 3 and the drainage groove 5 are interconnected, and the water in the water inlet groove 3 flows into the drainage groove 5 .

[0024] Example 2: Please refer to Figure 3 The difference between this embodiment and embodiment 1 is that the anti-impact pad 16 is provided with a groove 18, and the groove 18 is filled with a filling stone 19. The groove 18 provided with the anti-impact pad 16 is filled with a filling stone 19, which can facilitate the downward flow of water.

[0025] When the utility model is in use, the road is composed of an asphalt layer 2, a concrete layer 6, a tear-resistant layer b, an impact-resistant pad 16, a tear-resistant cloth a13, a honeycomb frame 12, a gravel layer 11, a waterproof board 10, a waterproof pad 9 and a road base layer 8. The tear-resistant cloth b14 is made of aramid, which has excellent properties such as ultra-high strength, high modulus, high temperature resistance, acid and alkali resistance, etc. Its strength is 5 to 6 times that of steel wire, its modulus is 2 to 3 times that of steel wire or glass fiber, and its toughness is 2 times that of steel wire. The impact-resistant pad 16 is made of high-impact polystyrene, to which micron-level rubber particles are added and the polystyrene and rubber particles are connected together by grafting. When impacted, the tip stress of the crack extension will be released by the relatively soft rubber particles, so the expansion of the crack is hindered, and the impact resistance is improved, which can make it have better impact resistance and absorb the impact force of vehicles passing on the road. The honeycomb frame 12 below can also absorb the impact, which can reduce the impact on the road surface and avoid cracking. The tear-resistant cloth a13 is made of ultra-high molecular weight polyethylene fiber, which has high specific strength, high specific modulus, low elongation at break, large fracture work, and strong energy absorption ability. Therefore, it has outstanding impact resistance and cutting resistance, and can cooperate with the tear-resistant cloth b14 to improve the overall crack resistance. The retaining frame 4 is fixed on both sides of the road. , and a drainage groove 5 is opened inside, and a drainage hole 7 is opened on the inner surface of the retaining frame 4. The water guide frame 1 fixed on the top of the retaining frame 4 is located on both sides of the asphalt layer 2. The water inlet groove 3 opened on the water guide frame 1 is communicated with the drainage groove 5. The accumulated water on the road surface can enter the drainage groove 5 along the water inlet groove 3, and when the water continues to move downward through the asphalt layer 2 and the concrete layer 6, it can continue to enter the retaining frame 4 through the drainage holes 7 along both sides. The surface of the bottom layer of the road base 8 is provided with a waterproof pad 9 and a waterproof board 10, which has a good waterproof effect and can prevent water from continuously penetrating downward. The surface of the waterproof board 10 is provided with a transverse water guide groove 20. The water that penetrates into the bottom flows to both sides along the water guide groove 20 and enters the retaining frame 4 through the drainage hole 7, which can avoid water accumulation.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An asphalt concrete pavement capable of avoiding cracking, comprising an asphalt layer (2), characterized in that: The asphalt layer (2) is located above the concrete layer (6); water guide frames (1) are bonded to both sides of the asphalt layer (2); the water guide frame (1) is fixedly connected to a retaining frame (4); the retaining frame (4) is provided with a drainage groove (5); a drainage hole (7) is provided inside the retaining frame (4); the concrete layer (6) is fixedly connected to a tear-resistant cloth b (14); the tear-resistant cloth b (14) is located above an impact-resistant pad (16); the impact-resistant pad (16) is bonded with a tear-resistant cloth a (13); the tear-resistant cloth a (13) is located above a honeycomb frame (12); the honeycomb frame (12) is located above a gravel layer (11); the gravel layer (11) is located above a waterproof board (10); a water guide groove (20) is provided on the surface of the waterproof board (10); and the waterproof board (10) is bonded with a waterproof pad (9).

2. The asphalt concrete pavement capable of avoiding cracking according to claim 1, characterized in that: The waterproof pad (9) is located above the roadbed (8), and the water guide frame (1) is provided with a water inlet groove (3).

3. The asphalt concrete pavement capable of avoiding cracking according to claim 1, characterized in that: The tear-resistant cloth a (13) is made of ultra-high molecular weight polyethylene fiber, and the tear-resistant cloth b (14) is made of aramid.

4. The asphalt concrete pavement capable of avoiding cracking according to claim 1, characterized in that: The impact-resistant pad (16) is fixedly connected with a convex strip (17), and a phase change material (15) is filled between the tear-resistant cloth b (14) and the impact-resistant pad (16).

5. The asphalt concrete pavement capable of avoiding cracking according to claim 1, characterized in that: The impact-resistant pad (16) is provided with a groove (18), and the groove (18) is filled with a filling stone (19).

6. The asphalt concrete pavement capable of avoiding cracking according to claim 2, characterized in that: The honeycomb frame (12) is filled with filling sand (21), and the water inlet groove (3) and the drainage groove (5) are interconnected.

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