Permeable concrete pavement structure of outdoor road

Abstract

The utility model discloses a pervious concrete pavement structure of an outdoor road. The pervious concrete pavement structure of the outdoor road comprises a graded broken stone layer, a high-strength steel-plastic composite rib net layer and a pervious concrete layer, the graded broken stone layer is laid on the roadbed; the high-strength steel-plastic composite rib net layer is laid on the graded broken stone layer; the pervious concrete layer is laid on the high-strength steel-plastic composite rib net layer; the permeability coefficient of the graded broken stone layer is greater than or equal to 0.1 cm / s; the porosity of the pervious concrete layer is 15%-25%; the high-strength steel-plastic composite rib net layer is additionally arranged between the pervious concrete layer and the graded broken stone layer to form a cooperative stress structure layer, and the high-strength steel-plastic composite rib net layer serves as a three-dimensional reinforced body and can disperse base layer shrinkage stress and restrain crack expansion; meanwhile, the mesh structure is matched with the pores of the pervious concrete, so that the pervious performance is not influenced, and the industrial pain point that the anti-cracking performance of the pervious concrete pavement is insufficient is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of road construction technology, specifically to an outdoor permeable concrete pavement structure. Background Technology

[0002] With the acceleration of urbanization, problems such as urban flooding and the heat island effect caused by the lack of permeability of traditional dense asphalt pavements are becoming increasingly prominent. Against this backdrop, permeable concrete pavement, as an eco-friendly paving technology, is gradually becoming an important carrier for the construction of sponge cities due to its excellent permeability, noise reduction, and surface temperature regulation functions.

[0003] However, permeable concrete still faces the risk of structural failure due to base layer cracking in practical applications. Traditional semi-rigid base layers (such as cement-stabilized crushed stone) are prone to reflective cracking due to thermal shrinkage and drying shrinkage. In addition, the high porosity of permeable concrete itself makes the pavement susceptible to cracking, spalling and other defects under heavy traffic and environmental stress, which seriously restricts its service life and functionality. Utility Model Content

[0004] In view of the deficiencies in the existing technology, this utility model provides an outdoor permeable concrete pavement structure to improve the crack resistance of the road surface and extend its service life.

[0005] To solve the above problems, the outdoor permeable concrete pavement structure provided by this utility model includes a graded crushed stone layer, a high-strength steel-plastic composite reinforcement mesh layer, and a permeable concrete layer.

[0006] The graded crushed stone layer is laid on the roadbed; the high-strength steel-plastic composite reinforcement mesh layer is laid on the graded crushed stone layer; the permeable concrete layer is laid on the high-strength steel-plastic composite reinforcement mesh layer.

[0007] The permeability coefficient of the graded crushed stone layer is greater than or equal to 0.1 cm / s; the porosity of the permeable concrete layer is 15% to 25%.

[0008] Preferably, the thickness of the graded crushed stone layer is 200~250mm.

[0009] Preferably, the mesh size of the high-strength steel-plastic composite reinforcing mesh layer is 100mm×100mm~150mm×150mm.

[0010] Preferably, the thickness of the permeable concrete layer is 200~400mm.

[0011] Preferably, transverse induced joints are set at intervals of 5 to 7 meters along the longitudinal direction of the road.

[0012] Preferably, the induced joint is filled with polyurethane elastic sealant.

[0013] The beneficial effects of this utility model are reflected in:

[0014] This invention adds a high-strength steel-plastic composite reinforcing mesh layer between the permeable concrete layer and the graded crushed stone layer, forming a synergistic stress-bearing structural layer. As a three-dimensional reinforcement, the high-strength steel-plastic composite reinforcing mesh layer can disperse the shrinkage stress of the base layer and inhibit crack propagation. Simultaneously, its mesh structure matches the pore size of the permeable concrete, ensuring that permeability is not affected and effectively solving the industry pain point of insufficient crack resistance in permeable concrete pavements. Verified through actual engineering projects, this invention's outdoor permeable concrete pavement structure can significantly improve pavement crack resistance, effectively reduce crack formation, improve pavement integrity and durability, extend service life by more than 35%, and reduce maintenance costs by approximately 45%, combining ecological and economic benefits. Furthermore, the construction process of this outdoor permeable concrete pavement structure is simple, resulting in significant economic and social benefits. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the permeable concrete pavement structure for outdoor roads according to the present invention.

[0017] In the attached diagram, 1-graded crushed stone layer, 2-high-strength steel-plastic composite reinforcement mesh layer, 3-permeable concrete layer. Detailed Implementation

[0018] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0019] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0020] The permeable concrete pavement structure for outdoor roads provided by this utility model, such as Figure 1 As shown, it includes a graded crushed stone layer 1, a high-strength steel-plastic composite reinforcement mesh layer 2, and a permeable concrete layer 3;

[0021] Graded crushed stone layer 1 is laid on the roadbed; high-strength steel-plastic composite reinforcement mesh layer 2 is laid on the graded crushed stone layer 1; permeable concrete layer 3 is laid on the high-strength steel-plastic composite reinforcement mesh layer 2.

[0022] The permeability coefficient of the graded crushed stone layer 1 is greater than or equal to 0.1 cm / s; the porosity of the permeable concrete layer 3 is 15%~25%.

[0023] This invention adds a high-strength steel-plastic composite reinforcing mesh layer 2 between the permeable concrete layer 3 and the graded crushed stone layer 1, forming a synergistic stress-bearing structural layer. The high-strength steel-plastic composite reinforcing mesh layer 2, acting as a three-dimensional reinforcement, can disperse the shrinkage stress of the base layer and inhibit crack propagation. Simultaneously, its mesh structure matches the pore size of the permeable concrete, ensuring that permeability is not affected and effectively solving the industry pain point of insufficient crack resistance in permeable concrete pavements. Verified through actual engineering projects, this invention's outdoor permeable concrete pavement structure can significantly improve pavement crack resistance, effectively reduce crack formation, enhance pavement integrity and durability, extend service life by more than 35%, and reduce maintenance costs by approximately 45%, combining ecological and economic benefits. Furthermore, the construction process of this outdoor permeable concrete pavement structure is simple, resulting in significant economic and social benefits.

[0024] The high-strength steel-plastic composite reinforcement layer 2 has high strength and toughness, which can effectively improve the overall structural strength of permeable concrete pavement, resist the influence of vehicle load and environmental factors, and reduce the risk of cracking. In addition, the high-strength steel-plastic composite reinforcement layer 2 is evenly distributed in the permeable concrete layer 3, which can restrain the deformation of concrete, disperse stress concentration, and significantly improve the crack resistance of the pavement.

[0025] The high-strength steel-plastic composite reinforcing mesh layer 2 features a modular design, allowing for direct on-site installation, reducing welding processes and shortening the construction period. Furthermore, its lightweight and flexible nature facilitates transportation, cutting, and installation, significantly improving construction efficiency and reducing labor intensity. Additionally, the high-strength steel-plastic composite reinforcing mesh layer 2 undergoes special anti-corrosion treatment, effectively resisting chemical corrosion and extending the road surface's service life. The steel-plastic composite reinforcing mesh exhibits strong corrosion resistance, avoiding the rust problems associated with traditional steel reinforcement and reducing maintenance costs.

[0026] In one embodiment, the thickness of the graded crushed stone layer 1 can be any value between 200 and 250 mm, specifically 200 mm, 220 mm, or 250 mm.

[0027] In one embodiment, the mesh size of the high-strength steel-plastic composite reinforcing mesh layer 2 is 100mm×100mm~150mm×150mm. By limiting the mesh size of the high-strength steel-plastic composite reinforcing mesh layer 2, it can be matched with the porosity of the permeable concrete layer 3 and the permeability of the graded aggregate layer 1, thereby achieving a better water infiltration effect.

[0028] In one embodiment, the thickness of the permeable concrete layer 3 can be any value between 200 and 400 mm, specifically 200 mm, 300 mm, or 400 mm.

[0029] In one embodiment, transverse induced joints (not shown in the figure) are set at intervals of 5 to 7 meters along the longitudinal direction of the road. By setting induced joints, stress can be better improved and cracking of concrete structures in other parts can be prevented.

[0030] In one embodiment, the induced joint is filled with polyurethane elastic sealant.

[0031] The construction method of this utility model for outdoor permeable concrete pavement structure includes the following steps:

[0032] (1) Compact the roadbed, with a compaction degree ≥95%;

[0033] (2) Lay a graded crushed stone layer (200mm thick) with a permeability coefficient ≥0.1cm / s;

[0034] (3) Lay and fix the high-strength steel-plastic composite reinforcing mesh layer according to the road surface dimensions and mesh specifications;

[0035] (4) The permeable concrete is cast and cured with a membrane. Transverse induction joints are cut at intervals of 6m along the longitudinal direction of the road and polyurethane elastic sealant is injected to form a permeable concrete layer.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model 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 or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A permeable concrete pavement structure for outdoor roads, characterized in that: It includes a graded crushed stone layer, a high-strength steel-plastic composite reinforcement mesh layer, and a permeable concrete layer; The graded crushed stone layer is laid on the roadbed; the high-strength steel-plastic composite reinforcement mesh layer is laid on the graded crushed stone layer; the permeable concrete layer is laid on the high-strength steel-plastic composite reinforcement mesh layer. The permeability coefficient of the graded crushed stone layer is greater than or equal to 0.1 cm / s; the porosity of the permeable concrete layer is 15% to 25%.

2. The permeable concrete pavement structure for outdoor roads according to claim 1, characterized in that: The thickness of the graded crushed stone layer is 200-250 mm.

3. The outdoor permeable concrete pavement structure according to claim 1, characterized in that: The mesh size of the high-strength steel-plastic composite reinforcing mesh layer is 100mm×100mm~150mm×150mm.

4. The outdoor permeable concrete pavement structure according to claim 1, characterized in that: The thickness of the permeable concrete layer is 200-400 mm.

5. The outdoor permeable concrete pavement structure according to claim 1, characterized in that: Transverse induced joints are set at intervals of 5 to 7 meters along the longitudinal direction of the road.

6. The outdoor permeable concrete pavement structure according to claim 5, characterized in that: The induced joint is filled with polyurethane elastic sealant.

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