CN116289393A - Thin-wall structure for curb film and renovating and repairing construction method - Google Patents
Thin-wall structure for curb film and renovating and repairing construction method Download PDFInfo
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- CN116289393A CN116289393A CN202211104172.4A CN202211104172A CN116289393A CN 116289393 A CN116289393 A CN 116289393A CN 202211104172 A CN202211104172 A CN 202211104172A CN 116289393 A CN116289393 A CN 116289393A
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- 238000010276 construction Methods 0.000 title abstract description 16
- 239000000463 material Substances 0.000 claims abstract description 29
- 238000010030 laminating Methods 0.000 claims abstract description 28
- 230000008439 repair process Effects 0.000 claims abstract description 18
- 239000000853 adhesive Substances 0.000 claims abstract description 12
- 230000001070 adhesive effect Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 15
- 239000004567 concrete Substances 0.000 claims description 14
- 239000004570 mortar (masonry) Substances 0.000 claims description 14
- 239000004576 sand Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000007667 floating Methods 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000011374 ultra-high-performance concrete Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000003475 lamination Methods 0.000 claims 1
- 238000009418 renovation Methods 0.000 abstract description 8
- 239000004568 cement Substances 0.000 description 6
- 239000002131 composite material Substances 0.000 description 6
- 239000004575 stone Substances 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000007710 freezing Methods 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000010881 fly ash Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 239000012783 reinforcing fiber Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000002562 thickening agent Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/22—Gutters; Kerbs ; Surface drainage of streets, roads or like traffic areas
- E01C11/221—Kerbs or like edging members, e.g. flush kerbs, shoulder retaining means ; Joint members, connecting or load-transfer means specially for kerbs
- E01C11/222—Raised kerbs, e.g. for sidewalks ; Integrated or portable means for facilitating ascent or descent
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C11/00—Details of pavings
- E01C11/005—Methods or materials for repairing pavings
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/00474—Uses not provided for elsewhere in C04B2111/00
- C04B2111/0075—Uses not provided for elsewhere in C04B2111/00 for road construction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Road Repair (AREA)
Abstract
The invention relates to a thin-wall structure for a curb film and a renovation and repair construction method, and belongs to the technical field of traffic engineering construction. The thin-wall structure comprises a laminating sheet, the laminating sheet is an L-shaped component, the inner side of the laminating sheet is identical to the side surface and the top surface of the curb, the bent part of the laminating sheet is provided with a chamfer, and the prefabricated laminating sheet is adhered to the exposed surface of the original curb by adopting adhesive materials to finish the film pasting repair of the curb. The invention solves the problems of loose surface, peeling, lack of edges and the like of the prior kerbstone, prolongs the service life of the kerbstone, and reduces the cost of the whole life cycle.
Description
Technical Field
The invention relates to a thin-wall structure for a curb film and a renovation and repair construction method, and belongs to the technical field of traffic engineering construction.
Background
A curb is a marker that is provided between a road surface and other structures. The pavement and the pavement of the urban road are generally provided with the curb stones, and the edges of the central partition belt, the right side edges of the traffic lanes or the outer side edges of the shoulders of the roads are often provided with the curb stones, so that the arrangement of the curb stones not only plays roles of guiding, connecting and facilitating drainage, but also has certain help for pavement construction and stability of the shoulders.
The prior common curbs include rock curbs and concrete curbs, the rock curbs have good mechanical properties and corrosion resistance, but have high manufacturing cost, are difficult to apply on a large scale on roads, and are easy to break under the action of external force. The concrete precast block curb has poor corrosion damage capability for resisting continuous freezing and thawing damage under natural climate conditions and corrosion damage caused by snow removing agents, and is easy to generate diseases such as surface loosening, peeling, edge deficiency, corner drop and the like in the normal use process, the diseases are more serious in northern areas of China, and particularly when ice salt is scattered on pavement in cold areas, the circulating salt freezing effect can accelerate the surface drop of concrete, and a series of diseases are caused.
The traditional repairing method is to remove and integrally replace the original curb, the damaged curb is directly discarded as construction waste, environmental pollution is caused, the normal traffic of roads is greatly influenced by overlong replacement time, and the operation cost of the road management and maintenance department is greatly increased due to overhigh replacement funds. It is therefore necessary to develop a low-cost, high-efficiency curb renovation and repair construction method.
Chinese patent document CN107905056A discloses a municipal road curb outer edge repairing method and a special die, which are used for solving the repairing problem after the prior curb is damaged. The method comprises the steps of finding a damaged position in a curb, milling the damaged position by using a milling roller, forming a gap to be repaired after milling, drilling a hole at the gap to be repaired by using a drill bit, cleaning the gap to be repaired and the hole, installing an anchor in the hole, arranging a wire-shaped object extending to the gap to be repaired on the anchor, spraying epoxy repair mortar or adhesive on the surfaces of the gap to be repaired and the anchor, grouting the gap to be repaired by using a grouting tool, forming a repair block after curing and hardening the grouting mortar, taking down the special die, polishing the repaired position by using a polishing machine, and the like. The method is only used for repairing the damaged part, has low integrity and is easy to collide and damage in the actual use process.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a thin-wall structure for a curb film and a renovation and repair construction method, which solve the problems of loose surface, peeling, lack of edges and the like of the prior curb, so as to prolong the service life of the curb and reduce the cost of the whole life cycle of the curb.
The technical scheme of the invention is as follows:
the utility model provides a thin wall structure for curb pad pasting, includes the laminating thin slice, and the laminating thin slice is L type component, and the laminating thin slice inboard is the same with curb side and top surface profile, and the laminating thin slice department of bending is provided with the chamfer, adopts bonding material to paste this prefabricated laminating thin slice at original curb exposure face, accomplishes the pad pasting restoration of curb.
Preferably, the bonding sheet material is an ultra-high performance concrete material, and the blending proportion of the bonding sheet material is 1 part by weight of cement, 1.2 parts by weight of fly ash, 0.8 part by weight of sand, 0.001 part by weight of thickener, 0.0096 part by weight of water reducer and 0.384 part by weight of water; the polyvinyl alcohol fiber accounts for 2% of the total volume of the concrete body, and has the characteristics of high compactness, good mechanical property and high durability.
The ultra-high toughness cement-based composite material is a novel cementing composite material based on the particle close packing theory and the hybrid fiber reinforcement and toughening mechanism, adopts polyvinyl alcohol as main reinforcing fiber, and has excellent mechanical property and durability compared with the traditional concrete. The compressive strength can reach 200MPa. Meanwhile, due to the low water-gel ratio, the microcrack effect and the self-repairing capability, the ultrahigh-toughness cement-based composite material also shows excellent durability, so that the service life of the curb is greatly prolonged, and the cost of the whole life cycle is reduced.
Preferably, the thickness of the laminated sheet is 2-3cm.
The renovation and repair construction method of the thin-wall structure for the curb film comprises the following steps of:
step one, prefabricating laminating sheets in batches according to a curb structure, and carrying out standard maintenance for 28 days;
cutting the pavement on one side close to the side face of the curb by using a cutting machine;
step three, adopting an electric steel wire brush to remove floating sand of the sand forming parts on the side surface and the top surface of the curb, and washing the floating sand with water;
repairing damaged positions such as the edge missing, corner falling and the like of the curb by using repair mortar;
step five, uniformly coating the adhesive material on the inner side of the bonding sheet;
step six, sticking the binding sheet coated with the binding material on the polished and cleaned exposed surface of the curb;
step seven, pointing the curb by adopting mortar, and brushing the back of the curb;
and step eight, filling the notch by adopting concrete or mortar to finish the curb film sticking and renewing.
The curb is a concrete curb or a stone curb.
Preferably, in the first step, the height of one side of the bonding sheet is greater than the height of the exposed ground of the curb, so that the bonding sheet can be inserted into the grooving, the bonding sheet can be embedded below the pavement through grooving cooperation, the integrity of the bonding sheet and the existing pavement is enhanced, gaps between the pavement and the curb after film bonding are prevented, rainwater soaking is easily caused in rainy days, the durability of bonding materials is reduced, and meanwhile, a part of the bonding sheet is embedded below the pavement, so that the structural stability can be effectively improved.
Preferably, in the fifth step, the adhesive material is polymer modified cement mortar or epoxy mortar, so that the adhesive has high adhesive strength, can be integrated with a structure, has strong corrosion resistance, and can resist high temperature, aging and freezing.
Preferably, in the sixth step, after the bonding sheet is bonded, the two ends of the curb are fixed by using the mold locking devices, after the bonding material is solidified, the mold locking devices are removed, and the contact parts between the mold locking devices and the back surfaces of the sheet and the curb are made of rubber sheet materials so as to prevent the sheet from being damaged in the locking process.
The present invention is not limited to the details of the prior art.
The invention has the beneficial effects that:
1. the invention adopts the film pasting technology to repair and reinforce the exposed surface of the damaged curb, has high curb repair efficiency and good repair effect, and has great economic and social benefits.
2. The film-sticking type in-situ repair new method can greatly save engineering materials, simplify construction, reduce construction waste, improve durability and service life of the repaired curb, and save more than 30% of the comprehensive cost compared with the traditional digging and replacing mode, namely save at least 3 ten thousand yuan/kilometer (the comprehensive cost of the digging and replacing method is calculated according to 100 yuan/linear meter).
3. The curb renovation and repair construction method can avoid the dismantling operation of the original curb, reduce the maintenance cost, reduce the environmental pollution and greatly improve the curb renovation and repair construction efficiency.
4. Compared with the ordinary concrete material, the durability of the curb after being coated with the film is greatly improved, and the service life of the curb can be greatly prolonged.
Drawings
FIG. 1 is a schematic illustration of a curb film according to the present invention;
FIG. 2 is a perspective view of a curb film according to the present invention;
FIG. 3 is a schematic view of a conformable sheet according to the present invention;
FIG. 4 is a schematic view of a mold locking apparatus of the present invention;
wherein: 1. laminating the thin sheet; 2. a bonding material; 3. a curb; 4. road surface; 5. a fine stone concrete foundation; 6. and a die locking device.
Detailed Description
The invention will now be further illustrated by way of example, but not by way of limitation, with reference to the accompanying drawings.
Example 1:
as shown in fig. 1-4, this embodiment provides a thin-wall structure for a curb pad pasting, including laminating thin slice 1, laminating thin slice 1 is L type component, laminating thin slice 1 inboard is the same with curb 3 side and top surface profile, and laminating thin slice 1 department of bending is provided with the chamfer, adopts bonding material 2 to paste this prefabricated laminating thin slice at original curb exposure face, accomplishes the pad pasting restoration of curb.
The bonding sheet 1 is made of ultra-high performance concrete material, and the mixing proportion of the bonding sheet is 1 part by weight of cement, 1.2 parts by weight of fly ash, 0.8 part by weight of sand, 0.001 part by weight of thickener, 0.0096 parts by weight of water reducer and 0.384 parts by weight of water; the polyvinyl alcohol fiber accounts for 2% of the total volume of the concrete body, and has the characteristics of high compactness, good mechanical property and high durability.
The ultra-high toughness cement-based composite material is a novel cementing composite material based on the particle close packing theory and the hybrid fiber reinforcement and toughening mechanism, adopts polyvinyl alcohol as main reinforcing fiber, and has excellent mechanical property and durability compared with the traditional concrete. The compressive strength can reach 200MPa. Meanwhile, due to the low water-gel ratio, the microcrack effect and the self-repairing capability, the ultrahigh-toughness cement-based composite material also shows excellent durability, so that the service life of the curb is greatly prolonged, and the cost of the whole life cycle is reduced.
The thickness of the laminated sheet 1 is 2-3cm.
The renovation and repair construction method of the thin-wall structure for the curb film comprises the following steps of:
step one, prefabricating laminating sheets in batches according to a curb structure, and carrying out standard maintenance for 28 days;
secondly, grooving the pavement 4 on one side close to the side face of the curb 3 by using a cutting machine;
step three, adopting an electric steel wire brush to remove floating sand of the sand forming parts on the side surface and the top surface of the curb, and washing the floating sand with water;
repairing damaged positions such as the edge missing, corner falling and the like of the curb by using repair mortar;
step five, uniformly coating the adhesive material on the inner side of the bonding sheet;
step six, sticking the binding sheet coated with the binding material on the polished and cleaned exposed surface of the curb;
step seven, pointing the curb by adopting mortar, and brushing the back of the curb;
and step eight, filling the notch by adopting concrete or mortar to finish the curb film sticking and renewing.
The curb is a concrete curb or a stone curb.
In step one, laminating flake 1 one side highly is greater than curb 3 and exposes ground height, guarantees that laminating flake can insert in the grooving, can embed laminating flake below the road surface through grooving cooperation, strengthens its and the wholeness on current road surface, prevents that the road surface from having the gap with the curb after the pad pasting, and the rainy day arouses the rainwater easily to soak, reduces the durability of bonding material, and partly embedding laminating flake below the road surface simultaneously can effectively improve structural stability.
In the fifth step, the adhesive material 2 adopts polymer modified cement mortar, has high adhesive strength, can form a whole with the structure, has strong corrosion resistance, and can resist high temperature, aging and freezing.
Example 2:
the method for renovating and repairing the thin-wall structure for the curb film according to embodiment 1 is characterized in that in the fifth step, the adhesive material 2 is epoxy mortar;
in the sixth step, after the bonding sheet 1 is bonded, the two ends of the curb are fixed by adopting the mold locking devices 6, after the bonding material 2 is solidified, the mold locking devices 6 are removed, and the contact parts between the mold locking devices 6 and the back surfaces of the sheet and the curb are made of rubber sheet materials so as to prevent the sheet from being damaged in the locking process.
The above examples are provided for illustrating the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements of the present invention should be apparent to those skilled in the art without departing from the spirit of the present invention, and the scope of the present invention is defined by the appended claims.
Claims (7)
1. The utility model provides a thin wall structure for curb pad pasting, its characterized in that, including laminating thin slice, laminating thin slice is L type component, and laminating thin slice inboard is the same with curb side and top surface profile, and laminating thin slice department of bending is provided with the chamfer.
2. A thin-walled structure for a kerb film according to claim 1 wherein the conformable sheet is an ultra-high performance concrete material.
3. A thin-walled structure for a kerb film according to claim 1 wherein the laminating sheet has a thickness of 2-3cm.
4. A method of renovating and repairing a thin-walled structure for a curb film according to claim 2, comprising the steps of:
step one, prefabricating laminating sheets in batches according to a curb structure, and carrying out standard maintenance for 28 days;
cutting the pavement on one side close to the side face of the curb by using a cutting machine;
step three, adopting an electric steel wire brush to remove floating sand of the sand forming parts on the side surface and the top surface of the curb, and washing the floating sand with water;
repairing damaged positions such as the edge missing, corner falling and the like of the curb by using repair mortar;
step five, uniformly coating the adhesive material on the inner side of the bonding sheet;
step six, sticking the binding sheet coated with the binding material on the polished and cleaned exposed surface of the curb;
step seven, pointing the curb by adopting mortar, and brushing the back of the curb;
and step eight, filling the notch by adopting concrete or mortar to finish the curb film sticking and renewing.
5. The method for renovating and repairing a thin-walled structure for a curb film according to claim 4, wherein in the first step, the height of one side of the lamination sheet is larger than the exposed surface height of the curb.
6. The method for renovating and repairing a thin-wall structure for a curb film according to claim 4, wherein in the fifth step, the adhesive material is polymer modified cement mortar or epoxy mortar.
7. The method for renovating and repairing a thin-wall structure for a curb film according to claim 4, wherein in the sixth step, after the bonding sheet is bonded, the two ends of the curb are fixed by using mold locking devices, after the bonding material is solidified, the mold locking devices are removed, and the contact parts of the mold locking devices, the sheet and the back of the curb are made of rubber sheet materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211104172.4A CN116289393A (en) | 2022-09-09 | 2022-09-09 | Thin-wall structure for curb film and renovating and repairing construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211104172.4A CN116289393A (en) | 2022-09-09 | 2022-09-09 | Thin-wall structure for curb film and renovating and repairing construction method |
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| Publication Number | Publication Date |
|---|---|
| CN116289393A true CN116289393A (en) | 2023-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211104172.4A Pending CN116289393A (en) | 2022-09-09 | 2022-09-09 | Thin-wall structure for curb film and renovating and repairing construction method |
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| CN (1) | CN116289393A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201128887Y (en) * | 2007-10-17 | 2008-10-08 | 黄春芳 | Colored combined curb stone |
| CN107905056A (en) * | 2017-11-28 | 2018-04-13 | 孔金河 | The outer rib method for repairing and mending of municipal road kerbstone and particular manufacturing craft |
| RU194029U1 (en) * | 2019-09-16 | 2019-11-25 | Юрий Андреевич Буканин | COVERING STONE |
| CN212294227U (en) * | 2020-05-10 | 2021-01-05 | 李志东 | Permeable kerb applied to asphalt pavement |
| CN114855542A (en) * | 2022-05-13 | 2022-08-05 | 山东大学 | UHPC hollow curb and construction method thereof |
-
2022
- 2022-09-09 CN CN202211104172.4A patent/CN116289393A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201128887Y (en) * | 2007-10-17 | 2008-10-08 | 黄春芳 | Colored combined curb stone |
| CN107905056A (en) * | 2017-11-28 | 2018-04-13 | 孔金河 | The outer rib method for repairing and mending of municipal road kerbstone and particular manufacturing craft |
| RU194029U1 (en) * | 2019-09-16 | 2019-11-25 | Юрий Андреевич Буканин | COVERING STONE |
| CN212294227U (en) * | 2020-05-10 | 2021-01-05 | 李志东 | Permeable kerb applied to asphalt pavement |
| CN114855542A (en) * | 2022-05-13 | 2022-08-05 | 山东大学 | UHPC hollow curb and construction method thereof |
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