CN211815295U - Asphalt pavement - Google Patents
Asphalt pavement Download PDFInfo
- Publication number
- CN211815295U CN211815295U CN201922359919.0U CN201922359919U CN211815295U CN 211815295 U CN211815295 U CN 211815295U CN 201922359919 U CN201922359919 U CN 201922359919U CN 211815295 U CN211815295 U CN 211815295U
- Authority
- CN
- China
- Prior art keywords
- layer
- tie coat
- asphalt
- asphalt pavement
- surface course
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000010426 asphalt Substances 0.000 title claims abstract description 67
- 239000004567 concrete Substances 0.000 claims abstract description 25
- 238000005728 strengthening Methods 0.000 claims abstract description 25
- 239000013305 flexible fiber Substances 0.000 claims abstract description 10
- 230000017105 transposition Effects 0.000 claims abstract description 9
- 238000009826 distribution Methods 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 27
- 239000000835 fiber Substances 0.000 claims description 4
- 229920000728 polyester Polymers 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 230000002035 prolonged effect Effects 0.000 abstract description 9
- 239000012466 permeate Substances 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 70
- 239000002344 surface layer Substances 0.000 description 16
- 230000009467 reduction Effects 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 238000005336 cracking Methods 0.000 description 5
- 230000035699 permeability Effects 0.000 description 4
- 210000003205 muscle Anatomy 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003607 modifier Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 150000003505 terpenes Chemical class 0.000 description 2
- 235000007586 terpenes Nutrition 0.000 description 2
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model discloses a bituminous paving aims at solving the bituminous paving that permeates water and loosens easily, leads to road surface intensity low, problem that life is short. The key points of the technical scheme are as follows: the utility model provides an asphalt pavement, includes pitch surface course, tie coat and gravel layer, contains flexible fiber in the asphalt pavement, is provided with concrete layer between gravel layer and the tie coat, is provided with between concrete layer and the pitch surface course and strengthens the frame, strengthens the strengthening rib that is provided with a plurality of cross distributions in the frame, through transposition portion fixed connection between two adjacent strengthening ribs, strengthens frame and strengthening rib and runs through the tie coat, through waterproof viscous layer oil fixed connection between tie coat and the pitch surface course. The utility model discloses a bituminous paving has strengthened the bituminous paving's that permeates water structural strength in the drainage, has the advantage that the bonding is firm, tear resistance is strong, has prolonged the bituminous paving's that permeates water life.
Description
Technical Field
The utility model relates to a municipal administration field, more specifically say, it relates to a bituminous paving.
Background
The asphalt is a black-brown complex mixture composed of hydrocarbons with different molecular weights and nonmetal derivatives thereof, is one of high-viscosity organic liquids, is in a liquid state, has a black surface, is soluble in carbon disulfide, and is a waterproof, moistureproof and anticorrosive organic cementing material. Asphalt can be mainly divided into coal tar asphalt, petroleum asphalt and natural asphalt, and the asphalt is mainly used for industries such as coating, plastics, rubber and the like, pavement and the like. However, asphalt belongs to a hydrophobic material, is impermeable and hardly soluble in water, and many existing asphalt pavements have the problem of poor water permeability, so that urban pavement drainage is difficult, rainwater can be accumulated on the pavement in rainy days and cannot seep downwards, accumulated water easily causes the conditions of uneven settlement of a foundation and the like, and noise pollution of vehicles and the like coming and going in cities exists.
In order to solve the above problems, chinese patent publication No. CN208486141U discloses a cold mix color asphalt drainage sound absorption pavement, which includes: a cold-mix colorful asphalt surface layer, a bonding layer, a large-pore graded drainage type asphalt wearing layer, a permeable layer and a base layer are sequentially constructed from top to bottom, drainage ditches are arranged on two sides of the base layer, and the tops of the drainage ditches are flush with the cold-mix colorful asphalt surface layer; the bottom of the permeable layer is provided with a diversion channel in an inverted V-shaped structure, and the diversion channel extends to the drainage holes on the two sides of the permeable layer from two sides; the sound absorption layer is filled with gravel particles, a plurality of noise reduction cavities are arranged in the sound absorption layer, and supporting columns are arranged at the upper end and the lower end of each noise reduction cavity; the upper part of the noise reduction cavity is provided with a first inverted Y-shaped drainage channel, the top end of the drainage channel is positioned below the flow guide channel, and the bottom of the drainage channel is communicated with a second drainage channel transversely positioned at the bottom of the sound absorption layer.
According to the scheme, rainwater is quickly drained from the interior of the large-pore graded drainage type asphalt wearing layer, the structure drainage capacity is high, the noise reduction performance is good, and the diversion channel at the bottom of the water permeable layer is of an inverted V-shaped structure, so that accumulated water can be drained conveniently; the inverted Y-shaped drainage channel I arranged on the upper portion of the noise reduction cavity of the sound absorption layer prevents accumulated water from entering the noise reduction cavity, and the sound absorption and noise reduction effects are guaranteed. The large-pore permeable asphalt pavement has the advantages that the water accumulation phenomenon of roads and squares can be eliminated quickly when raining, the burden of urban drainage facilities can be lightened when the rainfall is concentrated, and the flooding of rivers and the water pollution are prevented. However, the large void ratio causes the contact area between the aggregate and the aggregate to be reduced, so that the strength of the pavement is reduced, the aggregate and the aggregate are easy to loosen, and the service life of the pavement is shortened.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a bituminous paving through set up the enhancement frame between bituminous paving and concrete layer to set up a plurality of alternately distributed's strengthening rib in the enhancement frame, reach and strengthen road surface intensity, extension road surface life's purpose.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides an asphalt pavement, includes pitch surface course, tie coat and gravel layer, contain flexible fiber in the pitch surface course, be provided with concrete layer between gravel layer and the tie coat, be provided with between concrete layer and the pitch surface course and strengthen the frame, it is provided with a plurality of cross distribution's strengthening rib in the frame to strengthen, two adjacent through transposition portion fixed connection between the strengthening rib, it runs through to strengthen frame and strengthening rib the tie coat, through waterproof viscous layer oil fixed connection between tie coat and the pitch surface course.
By adopting the technical scheme, the asphalt dosage can be increased after a certain amount of flexible fibers are doped into the asphalt surface layer, the thickness of the asphalt film coated on the surface of the aggregate is increased, the strength of the asphalt surface layer is enhanced, the bonding layer is formed by uniformly mixing 5-20% of heavy-traffic asphalt, 45-55% of organic solvent, 16-28% of terpene resin, 7-21% of composite modifier and 0.5-2.5% of flame retardant, the bonding layer has the characteristics of firm bonding, high ductility and strong crack resistance, the aggregate and the aggregate of the asphalt pavement can be bonded more tightly, the dislocation between the layers of the pavement can be prevented, the asphalt surface layer, the bonding layer and the concrete layer can be connected more tightly after the reinforcing frame penetrates through the bonding layer, the stability of the internal structure of the pavement is enhanced, the pavement is not easy to loosen, and the supporting strength inside the pavement is enhanced at the same time, the strengthening rib in the strengthening frame has further strengthened the support intensity of strengthening frame to the road surface, the inner structure's on road surface stability has also been strengthened simultaneously, the emergence of the circumstances such as road surface fracture has been reduced, leave the net between strengthening rib and the strengthening frame simultaneously, can not influence bituminous paving's water permeability when strengthening road surface inner structure, waterproof viscous layer oil can prevent that the structure between the road surface can be influenced by the moisture that permeates down, the life on road surface has been prolonged, prevent to produce the dislocation between tie coat and the bituminous surface layer, set up the bearing capacity that concrete layer can strengthen the road surface simultaneously, when the circumstances of fracture appears in the road surface, concrete layer can with cold patch good bonding between the bituminous mixture, make the repair on road surface more convenient.
The utility model discloses further set up to: the twisted part is formed by twisting two adjacent reinforcing ribs for multiple times, and a reinforcing transverse rib is clamped in the twisted part.
Through adopting above-mentioned technical scheme, the strengthening rib can make the connection between two strengthening ribs more stable after the transposition many times, and the horizontal muscle of enhancement in the transposition portion has strengthened the horizontal upward tension in road surface, has further reduced the condition of road surface fracture, has prolonged the life on road surface.
The utility model discloses further set up to: and drain pipes are arranged on two sides of the bonding layer and communicated with the gravel layer.
Through adopting above-mentioned technical scheme, the rainwater permeates the back from bituminous paving, can permeate the gravel layer through the drain pipe of tie coat both sides, prevents that the too strong drainage that influences the road surface of tie coat stickness.
The utility model discloses further set up to: the upper end face of the concrete layer is provided with a plurality of lugs distributed in an array mode, and grooves for the lugs to be inserted are formed in the bonding layer.
Through adopting above-mentioned technical scheme, lug and concrete layer integrated into one piece on the concrete layer, the lug can insert in the recess on the tie coat, makes the connection between tie coat and the concrete layer more firm, prevents to produce the dislocation between the two.
The utility model discloses further set up to: the upper end face of the bonding layer is provided with a plurality of concave sections distributed in an array.
Through adopting above-mentioned technical scheme, after having seted up sunken section on the tie coat, the waterproof viscous layer oil's that can the holding between tie coat and the asphalt surface course volume is just bigger, just can make the connection between asphalt surface course and the tie coat more firm, has prolonged the life on road surface.
The utility model discloses further set up to: the flexible fiber is polyester fiber.
By adopting the technical scheme, the polyester fiber has good shape-preserving performance, and the probability of asphalt pavement cracking can be reduced after the asphalt is added.
To sum up, the utility model discloses following beneficial effect has:
firstly, the asphalt using amount can be increased after a certain amount of flexible fibers are mixed in the asphalt pavement, the thickness of the asphalt film coated on the surface of the aggregate is increased, the aggregate of the asphalt pavement can be more tightly bonded with the aggregate, the dislocation between layers of the pavement can be prevented, the asphalt pavement, the bonding layer and the concrete layer can be more tightly connected together after the reinforcing frame penetrates through the bonding layer, the stability of the internal structure of the pavement is enhanced, the pavement is not easy to loosen, the supporting strength of the internal part of the pavement is enhanced, the supporting strength of the reinforcing frame on the pavement is further enhanced by the reinforcing ribs in the reinforcing frame, the stability of the internal structure of the pavement is enhanced, the situations of pavement cracking and the like are reduced, meanwhile, grids are left between the reinforcing ribs and the reinforcing frame, the water permeability of the asphalt pavement can not be influenced while the internal structure of the pavement is enhanced, waterproof viscous layer oil can prevent that the structure between the road surface can be influenced by the moisture that permeates down, has prolonged the life on road surface, prevents to produce the dislocation between tie coat and the asphalt surface course.
Drawings
FIG. 1 is a schematic view of the internal structure of the present invention, showing the internal structural features of the asphalt pavement;
fig. 2 is an enlarged view of a portion a of fig. 1, showing structural features of the twisted portion.
In the figure: 1. an asphalt surface layer; 2. a bonding layer; 3. a sandstone layer; 4. a concrete layer; 5. a reinforcing frame; 6. Reinforcing ribs; 7. a twisted portion; 8. reinforcing the transverse ribs; 9. a drain pipe; 10. a bump; 11. a groove; 12. a recessed section.
Detailed Description
In order to make the technical solutions of the present invention better understood, the following detailed description of the present invention is provided with reference to the accompanying drawings and specific embodiments, and it should be noted that the embodiments and features of the embodiments of the present invention can be combined with each other without conflict.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "set/connected", "connected", and the like are to be interpreted broadly, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in detail with reference to the accompanying drawings and examples.
An asphalt pavement, as shown in fig. 1-2, comprises an asphalt surface layer 1, a bonding layer 2 and a gravel layer 3, wherein the bonding layer 2 is formed by uniformly mixing 5-20% of heavy traffic asphalt, 45-55% of organic solvent, 16-28% of terpene resin, 7-21% of composite modifier and 0.5-2.5% of fire retardant, and has the characteristics of firm bonding, high ductility and strong crack resistance, the upper end surface of the bonding layer 2 is provided with a plurality of concave sections 12 distributed in an array manner, the asphalt surface layer 1 contains flexible fibers, the flexible fibers are polyester fibers, a concrete layer 4 is arranged between the gravel layer 3 and the bonding layer 2, the concrete layer 4 is made of concrete materials, the upper end surface of the concrete layer 4 is provided with a plurality of bumps 10 distributed in an array manner, the bumps 10 and the concrete layer 4 are integrally formed, the bonding layer 2 is provided with grooves 11 for the bumps 10 to be inserted, and a reinforcing frame 5 is arranged between, reinforcing frame 5 adopts the reinforcement welding to form, be equipped with a plurality of cross distribution's strengthening rib 6 in the reinforcing frame 5, the both ends of strengthening rib 6 all with reinforcing frame 5 welded fastening, strengthening rib 6 is metal material, through 7 fixed connection in transposition portion between two adjacent strengthening ribs 6, transposition portion 7 comprises 6 transposition of two adjacent strengthening ribs for a plurality of times, the horizontal muscle 8 of enhancement is held to the centre gripping in transposition portion 7, strengthen horizontal muscle 8 and adopt the carbide material that mixes the cobalt, better toughness and intensity have, reinforcing frame 5 and strengthening rib 6 run through tie coat 2, it is fixed to bond through waterproof viscous layer oil between tie coat 2 and the asphalt surface course 1, the both sides of tie coat 2 are equipped with drain pipe 9, drain pipe 9 bonds fixedly through the binding material with tie coat 2, drain pipe 9 switches on with grit layer 3.
The asphalt surface layer 1 is doped with a certain amount of flexible fibers, the asphalt consumption can be improved, the thickness of an asphalt film coated on the surface of aggregate is increased, the strength of the asphalt surface layer 1 is enhanced, meanwhile, the material adopted by the asphalt surface layer 1 enhances the viscosity between aggregate of the asphalt surface layer 1 and aggregate, the asphalt mixture with higher viscosity can enable the aggregate of the asphalt surface layer 1 and the aggregate not to be easily loosened, the cracking of the asphalt pavement is reduced, the service life of the asphalt pavement is prolonged, the bonding layer 2 can enable the aggregate of the asphalt pavement and the aggregate to be more tightly bonded, the dislocation between the layer and the layer of the pavement is prevented, the reinforcing frame 5 can more tightly connect the asphalt surface layer 1, the bonding layer 2 and the concrete layer 4 together after penetrating through the bonding layer 2, the stability of the internal structure of the pavement is enhanced, the pavement is not easy to be loosened, and the supporting strength of the internal part of the pavement is enhanced, the reinforcing ribs 6 in the reinforcing frame 5 further enhance the supporting strength of the reinforcing frame 5 to the road surface, and simultaneously enhance the stability of the internal structure of the road surface, reduce the occurrence of the conditions of cracking of the road surface and the like, meanwhile, grids are left between the reinforcing ribs 6 and the reinforcing frame 5, the water permeability of the asphalt road surface is not influenced while the internal structure of the road surface is reinforced, the waterproof adhesive layer oil can prevent the structure between the road surfaces from being influenced by the permeated moisture, the service life of the road surface is prolonged, the dislocation between the bonding layer 2 and the asphalt surface layer 1 is prevented, the reinforcing ribs 6 can enable the connection between the two reinforcing ribs 6 to be more stable after being twisted for many times, the reinforced transverse ribs 8 in the twisting part 7 enhance the tension on the transverse direction of the road surface, the condition of cracking of the road surface is further reduced, the service life of the road surface is prolonged, rainwater can permeate into the gravel layer 3 through the drain pipes 9 on the two sides of the bonding, prevent 2 stickies of tie coat from influencing the drainage on road surface too strongly, lug 10 on concrete layer 4 can insert in the recess 11 on 2 tie coats, make the connection between 2 tie coats and the concrete layer 4 more firm, prevent to produce the dislocation between the two, after having seted up sunken section 12 on 2 tie coats, the waterproof viscous layer oil's that can the holding between 2 tie coats and the asphalt surface course 1 volume is just bigger, just can make the connection between 1 asphalt surface course and 2 tie coats more firm, the life on road surface has been prolonged.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides an asphalt pavement, includes asphalt surface course (1), tie coat (2) and gravel layer (3), its characterized in that: contain the flexible fiber in pitch surface course (1), be provided with concrete layer (4) between gravel layer (3) and tie coat (2), be provided with between concrete layer (4) and pitch surface course (1) and strengthen frame (5), be provided with a plurality of cross distribution's strengthening rib (6) in strengthening frame (5), two adjacent through transposition portion (7) fixed connection between strengthening rib (6), it runs through to strengthen frame (5) and strengthening rib (6) tie coat (2), through waterproof viscous layer oil fixed connection between tie coat (2) and pitch surface course (1).
2. An asphalt pavement according to claim 1, characterized in that: the twisted part (7) is formed by twisting two adjacent reinforcing ribs (6) for multiple times, and a reinforcing transverse rib (8) is clamped in the twisted part (7).
3. An asphalt pavement according to claim 1, characterized in that: and drain pipes (9) are arranged on two sides of the bonding layer (2), and the drain pipes (9) are communicated with the sandstone layer (3).
4. An asphalt pavement according to claim 1, characterized in that: the upper end face of concrete layer (4) is provided with a plurality of array distribution's lug (10), be provided with on tie coat (2) and supply lug (10) male recess (11).
5. An asphalt pavement according to claim 1, characterized in that: the upper end surface of the bonding layer (2) is provided with a plurality of concave sections (12) distributed in an array.
6. An asphalt pavement according to claim 1, characterized in that: the flexible fiber is polyester fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922359919.0U CN211815295U (en) | 2019-12-25 | 2019-12-25 | Asphalt pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922359919.0U CN211815295U (en) | 2019-12-25 | 2019-12-25 | Asphalt pavement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211815295U true CN211815295U (en) | 2020-10-30 |
Family
ID=73032946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922359919.0U Expired - Fee Related CN211815295U (en) | 2019-12-25 | 2019-12-25 | Asphalt pavement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211815295U (en) |
-
2019
- 2019-12-25 CN CN201922359919.0U patent/CN211815295U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108277713B (en) | Roadbed laying structure for highway extension and construction method | |
| CN111877071A (en) | Prevent enhancement road bed road surface of ponding | |
| CN211815295U (en) | Asphalt pavement | |
| CN213653091U (en) | Drainage bituminous pavement | |
| CN213061565U (en) | High-hardness water-permeable concrete pavement | |
| CN211815297U (en) | Permeable asphalt pavement | |
| CN209493776U (en) | A kind of new-old concrete bond connected structure | |
| CN212641083U (en) | Large-gap drainage asphalt pavement structure | |
| CN206157506U (en) | Road subgrade sedimentation preventing facility | |
| CN212834837U (en) | Town road with drainage function | |
| CN211772518U (en) | Type of permeating water's road structure of going | |
| CN209368620U (en) | A kind of permeable road structure | |
| CN211522716U (en) | Asphalt pavement | |
| CN210561549U (en) | Asphalt pavement structure | |
| CN208949676U (en) | A kind of asphalt paving | |
| CN220564985U (en) | Permeable asphalt pavement structure | |
| CN208250846U (en) | Surface drainage | |
| CN218203669U (en) | Road waterproof structure | |
| CN110820451A (en) | Highway structure | |
| CN215104368U (en) | Highway road surface with water storage and permeability | |
| CN221218374U (en) | Water-permeable anti-skid pavement structure | |
| CN220767589U (en) | Composite waterproof layer for sidewalk of bridge | |
| CN214831653U (en) | High-strength asphalt track | |
| CN217378453U (en) | Be applied to hydrophobic road surface structure of town road | |
| CN219010842U (en) | Permeable brick based on municipal road pavement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201030 |