CN218322159U - Full-thickness anti-rutting pavement structure - Google Patents
Full-thickness anti-rutting pavement structure Download PDFInfo
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- CN218322159U CN218322159U CN202222389809.0U CN202222389809U CN218322159U CN 218322159 U CN218322159 U CN 218322159U CN 202222389809 U CN202222389809 U CN 202222389809U CN 218322159 U CN218322159 U CN 218322159U
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- modified asphalt
- mixture layer
- asphalt mixture
- polyurethane modified
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- 239000010426 asphalt Substances 0.000 claims abstract description 119
- 239000000203 mixture Substances 0.000 claims abstract description 114
- 229920002635 polyurethane Polymers 0.000 claims abstract description 100
- 239000004814 polyurethane Substances 0.000 claims abstract description 100
- 238000006073 displacement reaction Methods 0.000 claims abstract description 10
- 210000003205 muscle Anatomy 0.000 claims abstract description 3
- 239000010410 layer Substances 0.000 claims description 105
- 239000012790 adhesive layer Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002929 anti-fatigue Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an anti rutting road surface structure of full thickness formula specifically includes first polyurethane modified asphalt mixture layer, second polyurethane modified asphalt mixture layer, third polyurethane modified asphalt mixture layer and the polyurethane modified asphalt rubble mixture layer that top-down laid in proper order, be provided with the locating rack that is used for restricting the displacement of first polyurethane modified asphalt mixture layer between first polyurethane modified asphalt mixture layer and the second polyurethane modified asphalt mixture layer, be provided with between second polyurethane modified asphalt mixture layer and the third polyurethane modified asphalt mixture layer and add the muscle wire net. In the structure, the positioning frame has certain rigidity and is not easy to deform, so that the displacement of a first polyurethane modified asphalt mixture layer laid above the positioning frame is limited, and the first polyurethane modified asphalt mixture layer is not easy to generate ruts; the reinforced steel wire mesh can improve the tensile strength of the second polyurethane modified asphalt mixture layer and prolong the service life of the pavement.
Description
Technical Field
The utility model belongs to the technical field of the road surface structure, concretely relates to anti rut road surface structure of full thickness formula.
Background
With the development of economy in China, heavy-duty vehicles are continuously increased, the occurrence of extreme high-temperature weather is more frequent, the phenomenon of rutting damage is more and more prominent, in order to effectively prevent rutting, the current technology focuses on improving the performance of asphalt mixtures by adopting anti-rutting agents, high-modulus admixture, waste rubber, waste plastics, diatomite and other additives, and the method has the following problems: firstly, the construction temperature of the adulteration agent-like asphalt mixture is higher, a large amount of fuel is consumed to heat mineral aggregate and asphalt in the production process, a large amount of carbon dioxide, sulfur dioxide, PM2.5 dust and smoke and the like are discharged to the atmosphere in the construction process, and the energy-saving and environment-friendly benefits are poor; secondly, following the traditional design idea of 'strong base thin surface', adopting a semi-rigid base layer with higher strength and a thinner asphalt mixture surface layer still can not effectively control the generation of the track.
SUMMERY OF THE UTILITY MODEL
To above defect, the utility model provides an anti rut road surface structure of full thickness formula sets up the locating rack and adds the muscle wire net between the polyurethane modified asphalt mixture layer, makes after each layer road surface connection, can have better anti rut performance.
The utility model provides an anti rutting road surface structure of full thickness formula, includes first polyurethane modified asphalt mixture layer, second polyurethane modified asphalt mixture layer, third polyurethane modified asphalt mixture layer and the polyurethane modified asphalt rubble mixture layer that top-down laid in proper order, be provided with the locating rack that is used for restricting first polyurethane modified asphalt mixture layer displacement between first polyurethane modified asphalt mixture layer and the second polyurethane modified asphalt mixture layer, be provided with reinforced steel wire net between second polyurethane modified asphalt mixture layer and the third polyurethane modified asphalt mixture layer.
After the wheels act on the pavement structure, pressure is transmitted to the positioning frame downwards, the positioning frame is not easy to deform due to certain rigidity, and meanwhile, the displacement of a first polyurethane modified asphalt mixture layer laid above the positioning frame is limited, so that tracks are not easy to generate on the surface of the first polyurethane modified asphalt mixture layer. In addition, the reinforced steel wire mesh can improve the tensile strength of the second polyurethane modified asphalt mixture layer, improve the repeated load action resistance and the structural integrity of the pavement of the second polyurethane modified asphalt mixture layer, reduce the thickness of the anti-fatigue layer and prolong the service life of the pavement.
Specifically, the first polyurethane modified asphalt mixture layer, the second polyurethane modified asphalt mixture layer and the third polyurethane modified asphalt mixture layer are all made of polyurethane modified asphalt mixture, and the polyurethane modified asphalt macadam mixture layer is made of polyurethane modified asphalt macadam mixture. The thickness of the first polyurethane modified asphalt mixture layer is 3-5cm; the thickness of the second polyurethane modified asphalt mixture layer is 4-6cm; the thickness of the third polyurethane modified asphalt mixture layer is 6-10cm; the thickness of the polyurethane modified asphalt macadam mixed material layer is 32-40cm.
In order to stably arrange the positioning frame between the first polyurethane modified asphalt mixture layer and the second polyurethane modified asphalt mixture layer, a plurality of through holes are arranged on the positioning frame, and the first polyurethane modified asphalt mixture layer and the second polyurethane modified asphalt mixture layer are embedded into the through holes at the through holes. Specifically, the thickness of the positioning frame is 1-2cm; the embedding thickness of the first polyurethane modified asphalt mixture layer in the through hole is 0.5-1cm, and the remaining space in the through hole is embedded with the second polyurethane modified asphalt mixture layer. The structure can effectively connect the first polyurethane modified asphalt mixture layer and the second polyurethane modified asphalt mixture layer at the through hole, and the displacement of the first polyurethane modified asphalt mixture layer and the second polyurethane modified asphalt mixture layer in the horizontal direction after connection is limited by the positioning frame, so that the interlayer sliding of the upper side and the lower side of the positioning frame is avoided.
On the basis, a waterproof adhesive layer is arranged between the first polyurethane modified asphalt mixture layer and the second polyurethane modified asphalt mixture layer which are embedded into the through holes. The structure can enable the first polyurethane modified asphalt mixture layer and the second polyurethane modified asphalt mixture layer to be connected more effectively, thereby enhancing the structural stability of the pavement.
The utility model discloses an useful part lies in: 1. according to the full-thickness type anti-rutting pavement structure, the connection strength among all pavement layers is high, and the pavement structure has better overall stability, water stability and fatigue resistance; 2. the reinforced steel wire mesh arranged between the second polyurethane modified asphalt mixture layer and the third polyurethane modified asphalt mixture layer improves the tensile strength of the second polyurethane modified asphalt mixture layer and prolongs the service life of the pavement; 3. when the wheels are pressed on the pavement structure, the positioning frame arranged between the first polyurethane modified asphalt mixture layer and the second polyurethane modified asphalt mixture layer can limit the displacement of the first polyurethane modified asphalt mixture layer on two sides of the through hole, so that the tracks are not easy to generate.
Drawings
Fig. 1 is a schematic view of the overall structure of the pavement structure of the present invention;
FIG. 2 isbase:Sub>A schematic cross-sectional view of the pavement structure of the present invention from the direction A-A of FIG. 1;
fig. 3 is a schematic structural view of the positioning frame of the present invention.
Detailed Description
The terms used in the present invention have the meanings commonly understood by those of ordinary skill in the art, unless otherwise specified.
The present invention will be described in further detail with reference to the following data in conjunction with specific embodiments. The following examples are intended to illustrate the invention and are not intended to limit the scope of the invention in any way.
As shown in fig. 1, a full-thickness anti-rutting pavement structure comprises a first polyurethane modified asphalt mixture layer 1, a second polyurethane modified asphalt mixture layer 2, a third polyurethane modified asphalt mixture layer 3 and a polyurethane modified asphalt macadam mixture layer 4 which are sequentially laid from top to bottom, wherein a positioning frame 5 used for limiting the displacement of the first polyurethane modified asphalt mixture layer 1 is arranged between the first polyurethane modified asphalt mixture layer 1 and the second polyurethane modified asphalt mixture layer 2, and a reinforced steel wire mesh 6 is arranged between the second polyurethane modified asphalt mixture layer 2 and the third polyurethane modified asphalt mixture layer 3.
After the wheel acted on above-mentioned road surface structure, pressure transmitted to locating rack 5 downwards, and locating rack 5 is difficult to produce the deformation owing to certain rigidity itself, has also restricted the displacement of laying the first polyurethane modified asphalt mixture layer 1 above locating rack 5 simultaneously to make first polyurethane modified asphalt mixture layer 1 be difficult for producing the rut on the surface. In addition, the reinforced steel wire mesh 6 can improve the tensile strength of the second polyurethane modified asphalt mixture layer 2, improve the repeated load resisting capability and the structural integrity of the pavement of the second polyurethane modified asphalt mixture layer 2, reduce the thickness of the fatigue-resistant layer and prolong the service life of the pavement.
In addition, the first polyurethane-modified asphalt mixture layer 1, the second polyurethane-modified asphalt mixture layer 2 and the third polyurethane-modified asphalt mixture layer 3 all use polyurethane-modified asphalt mixture, and the polyurethane-modified asphalt macadam mixture layer 4 uses polyurethane-modified asphalt macadam mixture.
Specifically, the thickness of the first polyurethane modified asphalt mixture layer 1 is 3-5cm; the thickness of the second polyurethane modified asphalt mixture layer 2 is 4-6cm; the thickness of the third polyurethane modified asphalt mixed material layer 3 is 6-10cm; the thickness of the polyurethane modified asphalt macadam mixed material layer 4 is 32-40cm.
There are many ways for the locating frame 5 to be disposed between the first polyurethane-modified asphalt mixture layer 1 and the second polyurethane-modified asphalt mixture layer 2, and a specific scheme is given here, as shown in fig. 2 and 3, a plurality of through holes 5-1 are disposed on the locating frame 5, and the first polyurethane-modified asphalt mixture layer 1 and the second polyurethane-modified asphalt mixture layer 2 are both embedded into the through holes 5-1 at the through holes 5-1. Wherein the thickness of the positioning frame 5 is 1-2cm; the embedding thickness of the first polyurethane modified asphalt mixture layer 1 in the through hole 5-1 is 0.5-1cm, and the rest space in the through hole 5-1 is embedded into the second polyurethane modified asphalt mixture layer 2.
The first polyurethane modified asphalt mixture layer 1 and the second polyurethane modified asphalt mixture layer 2 in the structure can respectively compress the positioning frames 5 from the upper direction and the lower direction; meanwhile, the first polyurethane modified asphalt mixture layer 1 and the second polyurethane modified asphalt mixture layer 2 can be effectively connected at the through hole 5-1 by the positioning frame 5, and the displacement of the connected first polyurethane modified asphalt mixture layer 1 and the second polyurethane modified asphalt mixture layer 2 in the horizontal direction is limited by the through hole 5-1, so that interlayer sliding at two sides of the positioning frame 5 is avoided.
The fastening force generated only by the viscosity of the urethane-modified asphalt mixture itself is limited, and for this reason, in order to more firmly couple the first urethane-modified asphalt mixture layer 1 and the second urethane-modified asphalt mixture layer 2, a waterproof adhesive layer 7 is provided between the first urethane-modified asphalt mixture layer 1 and the second urethane-modified asphalt mixture layer 2 inserted into the through-hole 5-1, as shown in fig. 2. The waterproof adhesive layer 7 is made of a road surface waterproof adhesive, the two layers of structures in the through hole 5-1 are adhered tightly, the fastening force between the two layers of structures can be enhanced, and therefore the structural stability of the road surface is enhanced.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides an anti rutting road surface structure of full thickness formula, includes first polyurethane modified asphalt mixture layer (1), second polyurethane modified asphalt mixture layer (2), third polyurethane modified asphalt mixture layer (3) and polyurethane modified asphalt macadam mixture layer (4) that top-down laid in proper order, its characterized in that: be provided with between first polyurethane modified asphalt mixture layer (1) and second polyurethane modified asphalt mixture layer (2) and be used for restricting locating rack (5) of first polyurethane modified asphalt mixture layer (1) displacement, be provided with between second polyurethane modified asphalt mixture layer (2) and third polyurethane modified asphalt mixture layer (3) and add muscle wire net (6).
2. The full-thickness rut resistant pavement structure of claim 1, wherein: the positioning frame (5) is provided with a plurality of through holes (5-1), and the first polyurethane modified asphalt mixture layer (1) and the second polyurethane modified asphalt mixture layer (2) are embedded into the through holes (5-1) at the through holes (5-1).
3. The full-thickness rut resistant pavement structure of claim 2, wherein: the thickness of the positioning frame (5) is 1-2cm.
4. The full-thickness rut resistant pavement structure of claim 3, wherein: the embedding thickness of the first polyurethane modified asphalt mixture layer (1) in the through hole (5-1) is 0.5-1cm, and the remaining space in the through hole (5-1) is embedded into the second polyurethane modified asphalt mixture layer (2).
5. The full-thickness rut resistant pavement structure of claim 2, wherein: a waterproof adhesive layer (7) is arranged between the first polyurethane modified asphalt mixture layer (1) and the second polyurethane modified asphalt mixture layer (2) which are embedded into the through hole (5-1).
6. The full-thickness rut resistant pavement structure of claim 1, wherein:
the thickness of the first polyurethane modified asphalt mixture layer (1) is 3-5cm;
the thickness of the second polyurethane modified asphalt mixture layer (2) is 4-6cm;
the thickness of the third polyurethane modified asphalt mixture layer (3) is 6-10cm.
7. The full-thickness rut resistant pavement structure according to claim 1, wherein: the thickness of the polyurethane modified asphalt macadam mixed material layer (4) is 32-40cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222389809.0U CN218322159U (en) | 2022-09-08 | 2022-09-08 | Full-thickness anti-rutting pavement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222389809.0U CN218322159U (en) | 2022-09-08 | 2022-09-08 | Full-thickness anti-rutting pavement structure |
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| Publication Number | Publication Date |
|---|---|
| CN218322159U true CN218322159U (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222389809.0U Active CN218322159U (en) | 2022-09-08 | 2022-09-08 | Full-thickness anti-rutting pavement structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116240767A (en) * | 2023-02-20 | 2023-06-09 | 山东省交通科学研究院 | Single-component polyurethane tunnel pavement structure |
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2022
- 2022-09-08 CN CN202222389809.0U patent/CN218322159U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116240767A (en) * | 2023-02-20 | 2023-06-09 | 山东省交通科学研究院 | Single-component polyurethane tunnel pavement structure |
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