Bituminous pavement reinforcing net

Abstract

A bituminous pavement reinforcing net comprises two layers of protective cloth which are arranged in a stacked mode, and composite cloth is arranged between the two layers of protective cloth. The composite cloth comprises two layers of reinforcing nets and base cloth clamped between the two layers of reinforcing nets. The reinforcing net comprises a plurality of transverse reinforcing bands and longitudinal reinforcing bands which are arranged in a criss-cross mode, and the transverse reinforcing bands are integrally fixed to the same sides of the longitudinal reinforcing bands. And a plurality of anti-skid blocks are arranged on the sides, deviating from the composite cloth, of the two pieces of protective cloth. The composite cloth has high waterproof performance, tensile strength and durability, the transverse reinforcing bands and the longitudinal reinforcing bands in the composite cloth are made of materials of the same specification and are evenly distributed, uniform in structure and small in shrinkage coefficient, bearing can be effectively dispersed, the reinforcing effect is achieved, the overall stability is improved, and the service life of the composite cloth is prolonged. Meanwhile, the crossed positions of the transverse reinforcing bands and the longitudinal reinforcing bands are not bent, the tearing strength is high, the overall friction coefficient is increased through the arrangement of the anti-sliding blocks, and sliding is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of pavement engineering, in particular to an asphalt pavement reinforcement net. Background Art

[0002] Road asphalt is an oily complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. On the old cement pavement, the lower layer of asphalt is first spread, and then the geotextile is laid, which is convenient for leveling the old pavement and making the geotextile flat and firmly adhered. It also has the functions of maintaining and repairing the asphalt pavement, preventing the pavement reflective cracks, and delaying the occurrence and development of reflective cracks. At present, most of the commonly used geotextiles are polyester filament spunbond needle-punched geotextiles and polyester staple needle-punched geotextiles, but the corrosion resistance of polyester products is poor. After long-term use, they will break and easily affect the project. If metal mesh is used for reinforcement, the overall weight will increase, which is not only inconvenient to move and transport, increasing the difficulty and time of laying, but also has poor waterproof effect, and cannot avoid rain damage to the roadbed. Moreover, the commonly used geotextiles and geogrids at this stage are mostly single in structure, lack of reinforcement structure, poor durability, and easy to cause aging when exposed to the outside for a long time. When rolling, the geotextile and the roadbed are prone to sliding, affecting the use effect. Utility Model Content

[0003] In order to solve the technical problems in the above-mentioned background technology that the asphalt pavement geogrid lacks a reinforcement structure and has poor durability and waterproofness, the utility model provides an asphalt pavement reinforcement net.

[0004] The technical solution of this utility model is as follows:

[0005] An asphalt pavement reinforcement net includes two layers of stacked protective cloths, with a composite cloth arranged between the two protective cloths; the composite cloth includes two layers of reinforcement nets and a base cloth sandwiched between the two layers of reinforcement nets. The reinforcement net includes a plurality of transverse reinforcement bands and longitudinal reinforcement bands arranged in a crisscross pattern, and the plurality of transverse reinforcement bands are integrally fixed to the same side of the longitudinal reinforcement bands. A plurality of anti-sliding blocks are arranged on the side of the two protective cloths facing away from the composite cloth. A high-strength composite cloth is formed by adding reinforcement nets on both sides of the base cloth to ensure the reinforcement effect on the asphalt pavement, and protective cloths are added on both sides of the composite cloth to improve the durability and wear resistance of the composite cloth, and further strengthen the protection of the asphalt pavement. The anti-sliding block provided on the protective cloth can increase the friction coefficient between it and the asphalt pavement, prevent sliding, and improve the laying efficiency and service life.

[0006] Specifically, the transverse reinforcement belt and the longitudinal reinforcement belt both include a plurality of glass fiber bundles arranged in parallel. Glass fiber is an inorganic non-metallic material with excellent performance, and has the properties of high tensile strength, small elongation, non-flammability, good chemical resistance and low water absorption.

[0007] Furthermore, the base fabric and the reinforcement net are connected by a connecting layer, and the connecting layer includes a number of fiber ropes woven in a cross shape, which can improve the connection strength between the base fabric and the reinforcement net.

[0008] Further preferably, the transverse reinforcement band and the longitudinal reinforcement band have the same width, ensuring that the tensile strength of the reinforcement net is the same in both the transverse and longitudinal directions.

[0009] As a preferred embodiment, a number of the transverse reinforcement bands and the longitudinal reinforcement bands are evenly spaced, which can effectively disperse the load and improve the overall stability at the same time.

[0010] Preferably, the composite fabric and the protective fabric have the same length and width dimensions, ensuring that the protective fabric can completely cover the composite fabric, achieving the maximum protective effect and enhancing the overall durability.

[0011] To facilitate the positioning of the anti-slip blocks and improve production efficiency, the positions of the anti-slip blocks correspond to the intersections of the transverse reinforcement bands and the longitudinal reinforcement bands.

[0012] Specifically, the anti-slip block includes an anti-slip ring arranged parallel to the protective fabric and a number of anti-slip strips cross-arranged inside it. The side of the anti-slip strip facing away from the protective fabric is serrated. The anti-slip ring and the anti-slip strips can increase the contact with the asphalt pavement and can be better embedded in the asphalt pavement after rolling. At the same time, the serrated anti-slip strips can increase the friction coefficient with the asphalt pavement, preventing slipping or dislocation.

[0013] To enhance the waterproof effect of the composite fabric and reduce the damage of rainwater to the road surface, a high-temperature dipping modified asphalt layer is covered on the surface of the composite fabric.

[0014] As a preferred embodiment, the base fabric is made of ultra-thin hot-melt non-woven fabric material. The hot-melt non-woven fabric has excellent physical properties, chemical stability and environmental friendliness, and has good heat insulation and waterproof properties.

[0015] Through the above design, the beneficial effects of the asphalt pavement reinforcement net of the present utility model are as follows: Through the combination of the protective fabric and the composite fabric, the present utility model not only has high waterproof performance, tensile strength and durability. The transverse reinforcement bands and the longitudinal reinforcement bands in the composite fabric are made of the same specification materials and are evenly distributed, with a uniform structure and a small shrinkage coefficient, which can effectively disperse the load, play a role in reinforcement, improve the overall stability. At the same time, there is no bend at the intersection of the transverse reinforcement band and the longitudinal reinforcement band, with high tear resistance, and through the setting of the anti-slip blocks, the overall friction coefficient is increased to avoid sliding. Description of the Drawings

[0016] In the drawings:

[0017] Figure 1 It is an exploded view of a reinforcing mesh structure for an asphalt pavement;

[0018] Figure 2 It is a sectional view of a reinforcing mesh structure for an asphalt pavement;

[0019] Figure 3 It is a schematic diagram of the connection between the base cloth and the reinforcing mesh in the embodiment;

[0020] Figure 4 It is a schematic diagram of the anti-slip block in the embodiment;

[0021] The components represented by the reference numerals in the figure are:

[0022] 1. Protective cloth; 2. Composite cloth; 21. Base cloth; 22. Reinforcing mesh; 221. Longitudinal reinforcing strip; 222. Transverse reinforcing strip; 3. Anti-slip block; 31. Anti-slip ring; 32. Anti-slip strip; 4. Connection layer. Specific implementation manners

[0023] Embodiment

[0024] Combined with Figure 1 and Figure 4 This embodiment provides a reinforcing mesh 22 for an asphalt pavement, which includes two layers of protective cloth 1 arranged in a stacked manner, and a composite cloth 2 is provided between the two protective cloths 1.

[0025] Preferably, the composite cloth 2 has the same length and width dimensions as the protective cloth 1, ensuring that the protective cloth 1 can completely cover the composite cloth 2, achieving the maximum protective effect and enhancing the overall durability.

[0026] Exemplarily, the protective cloth 1 is made of double-sided roughened non-woven fabric, which increases the friction coefficient, enhances the bonding force of the surface layer, prevents it from being rolled up and damaged by the wheels during construction, and at the same time can inhibit the slipping phenomenon of vehicles and pavers on the cloth.

[0027] To enhance the waterproof effect of the composite cloth 2 and reduce the damage of rainwater to the road surface, a high-temperature dipping modified asphalt layer is covered on the surface of the composite cloth 2.

[0028] In this embodiment, the composite cloth 2 includes two layers of reinforcing mesh 22 and a base cloth 21 sandwiched between the two layers of reinforcing mesh 22.

[0029] Furthermore, the base cloth 21 and the reinforcing mesh 22 are connected through a connection layer 4, and the connection layer 4 includes a plurality of fiber ropes woven in a cross shape, which can improve the connection strength between the base cloth 21 and the reinforcing mesh 22.

[0030] As a preferred embodiment, the base fabric 21 is made of an ultra-thin hot-melt non-woven fabric material. The hot-melt non-woven fabric has excellent physical properties, chemical stability, and environmental friendliness, and also has good heat insulation and waterproof properties.

[0031] In this embodiment, the reinforcing mesh 22 includes a plurality of transverse reinforcing bands 222 and longitudinal reinforcing bands 221 arranged in a crisscross pattern, and the plurality of transverse reinforcing bands 222 are integrally fixed on the same side of the longitudinal reinforcing band 221.

[0032] Specifically, both the transverse reinforcing band 222 and the longitudinal reinforcing band 221 include a plurality of juxtaposed glass fiber bundle bands. Glass fiber is an excellent inorganic non-metallic material with properties such as high tensile strength, small elongation, non-combustibility, good chemical resistance, and small water absorption.

[0033] Refer to Figure 3 , the fiber ropes are evenly shuttled in a cross-shaped pattern between a plurality of glass fiber bundle bands, and the cross-shaped fiber ropes are evenly distributed on the part of the base fabric 21 that is not directly connected to the reinforcing mesh 22. This enhances the connectivity and integrity between the reinforcing mesh 22 and the base fabric 21, and at the same time improves the strength of the base fabric 21 through the distributed fiber ropes.

[0034] Further preferably, the transverse reinforcing band 222 and the longitudinal reinforcing band 221 have the same width to ensure that the tensile strength of the reinforcing mesh 22 is the same in both the transverse and longitudinal directions.

[0035] As a preferred embodiment, a plurality of the transverse reinforcing bands 222 and the longitudinal reinforcing bands 221 are arranged at equal intervals, which can effectively disperse the load and improve the overall stability at the same time.

[0036] In this embodiment, a plurality of anti-slip blocks 3 are provided on the side of the two protective fabrics 1 facing away from the composite fabric 2.

[0037] To facilitate the positioning of the anti-slip blocks 3 and improve production efficiency, the positions of the anti-slip blocks 3 correspond to the intersections of the transverse reinforcing bands 222 and the longitudinal reinforcing bands 221.

[0038] Preferably, the anti-slip blocks 3 are arranged at uniform intervals, and the anti-slip blocks 3 in adjacent rows (or columns) are arranged in a staggered manner, which can not only reduce the number of anti-slip blocks 3 but also ensure their anti-slip effect and save materials.

[0039] Specifically, the anti-slip block 3 includes an anti-slip ring 31 arranged parallel to the protective cloth 1, and a plurality of anti-slip strips 32 arranged crosswise therein, and the anti-slip strips 32 are arranged in a serrated shape on the side away from the protective cloth 1. The anti-slip ring 31 and the anti-slip strips 32 can increase the contact with the asphalt road surface, and can be better embedded in the asphalt road surface after rolling. At the same time, the serrated anti-slip strips 32 can increase the friction coefficient between the anti-slip ring 31 and the asphalt road surface to prevent slipping or dislocation.

[0040] In specific implementation, combined with Figure 4 The anti-skid ring 31 is square, and the middle of its four sides are provided with beveled edges concave toward the center of the square, so that the periphery of the anti-skid ring 31 is uneven, which increases the contact area with the asphalt pavement and increases the friction. At the same time, when the anti-skid ring 31 is rolled and embedded in the asphalt pavement, its uneven shape can increase the bonding force between the two.

[0041] Furthermore, a plurality of through holes penetrating the inside and outside of the anti-slip ring 31 are provided on the bevel, and one side of the through hole penetrates the protective cloth 1, which can prevent water from accumulating in the anti-slip ring 31, and the water can be discharged from the through hole.

[0042] Through the combination of the protective cloth 1 and the composite cloth 2, the utility model not only has high waterproof performance, tensile strength and durability, but also the transverse reinforcement belt 222 and the longitudinal reinforcement belt 221 in the composite cloth 2 are made of the same specification of materials, and are evenly distributed, uniform in structure, and have a small shrinkage coefficient, which can effectively disperse the load, play a role of reinforcement, and improve the overall stability. At the same time, there is no bending at the intersection of the transverse reinforcement belt 222 and the longitudinal reinforcement belt 221, and the tear resistance is high. Moreover, through the setting of the anti-sliding block 3, the overall friction coefficient is increased to avoid sliding. It can be applied to both hard and flexible pavements, and can reduce the cost, extend the service life, and prevent road reflective cracks compared with traditional pavements. The protective cloth 1 is made of roughened non-woven fabric, which can not only increase the friction, but also form an asphalt waterproof and anti-seepage layer when it is sealed by asphalt binder to prevent pavement water from penetrating into the roadbed, thereby protecting the roadbed.

Claims

1. An asphalt pavement strengthening net, characterized in that, It comprises two layers of stacked protective cloth (1), with a composite cloth (2) arranged between the two protective cloths (1); The composite fabric (2) comprises two layers of reinforcing mesh (22) and a base fabric (21) sandwiched between the two layers of reinforcing mesh (22); The reinforcing net (22) comprises a plurality of transverse reinforcing bands (222) and longitudinal reinforcing bands (221) arranged in a crisscross pattern, and the plurality of transverse reinforcing bands (222) are integrally fixed to the same side of the longitudinal reinforcing band (221); A plurality of anti-sliding blocks (3) are provided on the side of the two protective cloths (1) facing away from the composite cloth (2).

2. The asphalt pavement reinforcement net according to claim 1, characterized in that, The transverse reinforcement belt (222) and the longitudinal reinforcement belt (221) both include a plurality of glass fiber bundle belts arranged in parallel.

3. The asphalt pavement strengthening net according to claim 1, characterized in that, The base fabric (21) and the reinforcing mesh (22) are connected via a connecting layer (4).

4. The asphalt pavement strengthening net according to claim 2, characterized in that, The transverse reinforcement band (222) and the longitudinal reinforcement band (221) have the same width.

5. The asphalt pavement strengthening net according to claim 1, characterized in that, The plurality of transverse reinforcement bands (222) and longitudinal reinforcement bands (221) are all arranged at equal distances.

6. The asphalt pavement strengthening net according to claim 1, characterized in that, The length and width of the composite cloth (2) and the protective cloth (1) are consistent.

7. The asphalt pavement reinforcement net according to claim 1, characterized in that, The position of the anti-sliding block (3) corresponds to the intersection of the transverse reinforcement belt (222) and the longitudinal reinforcement belt (221).

8. The asphalt pavement reinforcement mesh according to claim 1, characterized in that, The anti-slip block (3) comprises an anti-slip ring (31) arranged parallel to the protective cloth (1), and a plurality of anti-slip strips (32) arranged crosswise therein, wherein the side of the anti-slip strips (32) facing away from the protective cloth (1) is arranged in a serrated shape.

9. The asphalt pavement reinforcement net according to claim 1, wherein, The surface of the composite cloth (2) is covered with a high-temperature impregnated modified asphalt layer.

10. The asphalt pavement reinforcement mesh according to claim 1, wherein, The base fabric (21) is made of ultra-thin hot-melt non-woven fabric.

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