CN217629228U - Road surface structure of making an uproar falls - Google Patents
Road surface structure of making an uproar falls Download PDFInfo
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- CN217629228U CN217629228U CN202221494729.5U CN202221494729U CN217629228U CN 217629228 U CN217629228 U CN 217629228U CN 202221494729 U CN202221494729 U CN 202221494729U CN 217629228 U CN217629228 U CN 217629228U
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- modified asphalt
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Abstract
The utility model discloses a road surface structure of making an uproar falls relates to road technical field, a road surface structure of making an uproar falls, including reinforced concrete bridge base layer, stress absorbing layer and surface course, the stress absorbing layer is hot pitch rubble, the particle diameter of hot pitch rubble is 3-5mm, the surface course comprises coarse stone material, fine stone material, mountain flour and the high elasticity modified asphalt, the particle diameter of the used rubble of high elasticity modified asphalt is 5-10mm, the thickness of surface course is 15-20mm, the thickness of stress absorbing layer is 3-5mm. The surface layer of the utility model is composed of coarse stone materials, fine stone materials, stone powder and high-elasticity modified asphalt, and limits the particle size of the macadam used by the high-elasticity modified asphalt to be 5-10mm, thereby having better high temperature stability and low temperature crack resistance, keeping better skid resistance and flatness, and having the function of reducing noise; the stress absorbing layer of the hot asphalt macadam can bear larger stress brought by vehicles.
Description
Technical Field
The utility model relates to the field of road technology, specifically a road surface structure of making an uproar falls.
Background
With the rapid development of the current society, people use vehicles more and more frequently to travel, and the influence on road sections in residential areas is particularly obvious. Due to the fact that driving noise is large, the driving noise interferes with the life of residents, and the rest of roadside resident people is affected. Therefore, the requirement on the passing road is higher and higher, especially the reduction of noise generated by automobiles and roads is a strict object of environmental protection in recent years, and the noise reduction effect of the existing road is poorer.
For this reason, we propose a road pavement capable of reducing noise to solve the above drawbacks.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a road surface structure of making an uproar falls to solve the current not good technical problem of road surface structure noise reduction effect.
In order to solve the technical problem, the utility model provides a following optimization technical scheme:
the noise-reducing pavement structure comprises a reinforced concrete bridge base layer, a stress absorbing layer and a surface layer, and is characterized in that the stress absorbing layer is made of hot asphalt macadam, the particle size of the hot asphalt macadam is 3-5mm, the surface layer is made of coarse stone materials, fine stone materials, stone powder and high-elasticity modified asphalt, the particle size of the macadam used by the high-elasticity modified asphalt is 5-10mm, the thickness of the surface layer is 15-20mm, and the thickness of the stress absorbing layer is 3-5mm.
Further, the thickness of the reinforced concrete bridge base layer is 10-15cm.
The utility model discloses for prior art following beneficial effect has:
the surface layer is composed of coarse stone, fine stone, stone powder and high-elasticity modified asphalt, the particle size of the macadam used by the high-elasticity modified asphalt is limited to 5-10mm, the macadam has good high-temperature stability and low-temperature crack resistance, keeps good skid resistance and flatness, and has the effect of reducing noise; the stress absorbing layer of the hot asphalt macadam can bear larger stress brought by vehicles.
Drawings
Fig. 1 is a cross-sectional view of the road surface structure of the present invention.
In the figure: 1. a reinforced concrete bridge base layer; 2. a stress absorbing layer; 3. a surface layer; 4. a shear resistant layer; 5. and (6) sticking the layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1, a noise-reducing pavement structure comprises a reinforced concrete bridge foundation layer 1, a stress absorbing layer 2 and a surface layer 3, wherein the stress absorbing layer 2 is made of hot asphalt macadam, the particle size of the hot asphalt macadam is 3-5mm, the stress absorbing layer 2 of the hot asphalt macadam can bear larger stress brought by vehicles, the surface layer 3 is made of coarse stone, fine stone, stone powder and high-elasticity modified asphalt, the particle size of the macadam used by the high-elasticity modified asphalt used by the existing surface layer 3 is 5-10mm, most of the macadams used by the high-elasticity modified asphalt used by the existing surface layer 3 is 13-16mm, the noise-reducing effect of the surface layer 3 made of the high-elasticity modified asphalt with the particle size of the macadam is general, the noise can be reduced by only about 20 db, while the noise of the high-elasticity modified asphalt made of the macadam with the particle size of 5-10mm in the embodiment can reduce the noise by about 65 db, the noise of the noise better overall, and the particle size of the macadam used by the high-elasticity modified asphalt is preferably 10mm, and the original elasticity modified asphalt can maintain the original elasticity and can effectively reduce the noise; the thickness of the surface layer 3 is 15-20mm, preferably 20mm, the comprehensive performance is optimal, and the thickness of the stress absorption layer 2 is 3-5mm, preferably 5mm, and the stress absorption layer can absorb large stress generated by a road surface.
Among the above-mentioned technical scheme, the content of coarse stone material should be less than 8%, because the material that contains of coarse stone material is less, then the elasticity of the surface course 3 that forms can not the undersize, has both guaranteed the elasticity of surface course 3 and has reduced the noise to the at utmost.
In the technical scheme, the surface layer 3 can also be selected from an SMA asphalt mixture, which is also called an asphalt mastic macadam mixture, is produced by using modified asphalt, and also has high-temperature stability, low-temperature crack resistance, better skid resistance, flatness and noise reduction effect.
The surface layer 3, the stress absorbing layer 2 and the reinforced concrete bridge foundation layer 1 are bonded by mutual stress, and it can be understood that the surface layer 3, the stress absorbing layer 2 and the reinforced concrete bridge foundation layer 1 can be bonded by other modes to realize bonding. For example, an adhesive layer 5 is arranged between each layer, and the adhesive layer 5 is used for tightly bonding each layer to prevent water from seeping into gaps between the layers.
The adhesive layer 5 is a high molecular resin adhesive, and the adhesive layer 5 has the characteristic of environmental protection and does not pollute the environment.
The thickness of the adhesive layer 5 is 0.2-0.4cm, preferably 0.3cm, which is optimal for the adhesion between the layers.
And an anti-shearing layer 4 is arranged between the stress absorption layer 2 and the reinforced concrete bridge foundation layer 1, and the anti-shearing layer 4 enhances the strength and the anti-shearing effect of the pavement structure, so that the overall structure of the pavement has better strength and stronger safety performance.
The thickness of the shear resistant layer 4 is 2-4cm, preferably 4cm.
The thickness of the shear resistant layer 4 is 2-4cm, preferably the thickness of the shear resistant layer 4 is 4cm, and the maximum degree of shear resistance is achieved.
In the technical scheme, the anti-shearing layer 4 is SBS modified emulsified asphalt, wherein the content of SBS latex is lower than 6%, the obtained SBS modified emulsified asphalt has the largest stability, and the anti-shearing effect is the best.
The thickness of the reinforced concrete bridge base layer 1 is 10-15cm, and the thickness is the thickness of a beam body which does not contain the bridge.
The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (2)
1. The noise-reducing pavement structure comprises a reinforced concrete bridge base layer, a stress absorbing layer and a surface layer, and is characterized in that the stress absorbing layer is made of hot asphalt macadam, the particle size of the hot asphalt macadam is 3-5mm, the surface layer is made of coarse stone materials, fine stone materials, stone powder and high-elasticity modified asphalt, the particle size of the macadam used by the high-elasticity modified asphalt is 5-10mm, the thickness of the surface layer is 15-20mm, and the thickness of the stress absorbing layer is 3-5mm.
2. A noise-reducing pavement structure according to claim 1, wherein the reinforced concrete bridge base layer has a thickness of 10-15cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221494729.5U CN217629228U (en) | 2022-06-15 | 2022-06-15 | Road surface structure of making an uproar falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221494729.5U CN217629228U (en) | 2022-06-15 | 2022-06-15 | Road surface structure of making an uproar falls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217629228U true CN217629228U (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221494729.5U Active CN217629228U (en) | 2022-06-15 | 2022-06-15 | Road surface structure of making an uproar falls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217629228U (en) |
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2022
- 2022-06-15 CN CN202221494729.5U patent/CN217629228U/en active Active
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