CN217203447U - Structure is restoreed to wear-resisting antiskid of concrete surface - Google Patents
Structure is restoreed to wear-resisting antiskid of concrete surface Download PDFInfo
- Publication number
- CN217203447U CN217203447U CN202220244297.6U CN202220244297U CN217203447U CN 217203447 U CN217203447 U CN 217203447U CN 202220244297 U CN202220244297 U CN 202220244297U CN 217203447 U CN217203447 U CN 217203447U
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- China
- Prior art keywords
- concrete
- concrete surface
- layer
- repair
- epoxy
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- 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
- 239000004593 Epoxy Substances 0.000 claims abstract description 33
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 24
- 229920002396 Polyurea Polymers 0.000 claims abstract description 18
- 239000011248 coating agent Substances 0.000 claims abstract description 18
- 238000000576 coating method Methods 0.000 claims abstract description 18
- 239000011159 matrix material Substances 0.000 claims description 11
- 238000005299 abrasion Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract description 3
- 239000003973 paint Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 23
- 239000000463 material Substances 0.000 description 12
- 239000004568 cement Substances 0.000 description 10
- 241000264877 Hippospongia communis Species 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 3
- 201000010099 disease Diseases 0.000 description 3
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 3
- 206010040844 Skin exfoliation Diseases 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Road Paving Structures (AREA)
Abstract
The utility model discloses a concrete surface wear-resisting anti-skidding repair structure relates to concrete surface repair technical field, and repair structure is including applying paint with a brush in concrete base member's epoxy penetrant layer, filling epoxy mortar layer and the polyurea coating of spraying in epoxy mortar layer surface in concrete base member, the utility model provides a but concrete surface wear-resisting anti-skidding repair structure layer between interact forms the functional combination of preferred, and the simple structure of this concrete surface wear-resisting anti-skidding repair structure simultaneously, the construction is simple convenient, can open the traffic fast after the construction, and repair system is reliable durable, in the environment of heavy load overload vehicle high frequency braking, and it is splendid to bear or endure long-term fatigue impact shear capacity, can maintain not ftracture for a long time, not broken, do not debond.
Description
Technical Field
The utility model relates to a concrete surface restores technical field, especially relates to a structure is restoreed to wear-resisting antiskid of concrete surface.
Background
When the cement concrete is constructed, because the cement concrete is not vibrated tightly during vibration, the concrete has segregation phenomenon in the transportation process, or the mixing proportion of concrete materials is not controlled tightly during construction, and particularly, under the conditions of too low water cement ratio and the like, the defects of pitted surfaces, honeycombs and the like can be caused on the surface of the concrete. In addition, in the service process of cement concrete pavements such as airports, expressways, toll stations, service areas and parking lots, various diseases such as peeling, sanding, pitted surface, honeycomb, coarse aggregate exposure and the like can be gradually formed due to external environment or medium erosion, long-term driving load and other reasons. Especially, when the exposed height of the coarse aggregate is more than 5mm (less than the thickness of the concrete protective layer), an obvious honeycomb is formed, the bonding between the coarse aggregate and the original concrete is weak, and if the coarse aggregate cannot be repaired in time, serious diseases such as pits and grooves can be quickly developed due to 'runners' (the coarse aggregate is pulled out and the like), so that the maintenance difficulty and the maintenance cost are increased.
At present, the main repairing mode of the diseases is to roughen the surface of concrete, clean dust and debris to ensure the reliable connection strength of a new surface and an old surface, and then cover the surfaces with repairing materials. Most of the selected overlay materials are quick-hardening cement grouting materials, polymer modified cement repair mortar and the like. The toughness of the repairing mode is limited due to the adoption of a cement-based material, and even if the toughness of the repairing mode is improved to a certain extent by adding a polymer, the driving impact shear resistance of the whole repairing system is still extremely limited. In the application scenes of airports, expressways, toll stations, service areas, parking lots and the like, vehicles are frequently started to brake, so that the possibility that the repairing structure is damaged by impact and shearing is very high. In addition, the formula defects of the materials are that the bonding strength between the materials and the base concrete is not strong, and when the repairing thickness exceeds 1cm, the structure is easy to crack, so that the repairing effect is poor. Moreover, the new repairing layer is repaired by a thin layer, and generally only can be smoothed and leveled, and the wear-resisting and anti-skidding performance of the system provided by the cement-based material is common.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the application scenes of current airport, highway toll station and service area, parking area etc. under, the restoration problem of cement concrete pavement honeycomb pitted surface and the restoration structure who is used for high strength and high toughness, wear-resisting skid-proof that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a concrete surface wear-resistant anti-skid repair structure comprises an epoxy penetrant layer coated on a concrete matrix, an epoxy mortar layer filled in the concrete matrix and a polyurea coating sprayed on the surface of the epoxy mortar layer.
The epoxy penetrant layer is made of an ultralow-viscosity epoxy penetrant with extremely high permeability, and the epoxy penetrant can permeate into fine cracks in the pitted honeycomb concrete, so that epoxy adhesive concrete with high strength is formed on the surface layer of the concrete matrix again; meanwhile, the concrete can be infiltrated to be used as an interface agent, so that the bonding effect of the epoxy mortar layer and the matrix in the repair structure is ensured.
The epoxy mortar layer is made of quick-hardening tough epoxy mortar, the quick-hardening tough epoxy mortar can be quickly cured, the fixed telephone can be completed within 2 hours generally, and the traffic can be opened within a short time. The compression strength and the breaking strength are high, and the impact shear resistance is strong (the heavy-duty pavement is not cracked and broken after being rolled); the rapid hardening type tough epoxy mortar has high-strength adhesion, and can form a repairing system together with a penetrating agent to finish the high-strength adhesion between an epoxy mortar layer and an original concrete matrix. The utility model discloses in, can adjust the repair thickness on epoxy mortar layer according to actual conditions, even repair thickness is the ultra-thin layer, epoxy mortar layer also can not be broken and the crackle appears.
In addition, the rapid-hardening type tough epoxy mortar material has good sealing, waterproof, anti-freezing and corrosion-resistant capabilities, and the durability of a repaired structure can be further ensured.
The polyurea coating is attached to the surface of the epoxy mortar layer through spraying construction, and the thickness of the polyurea coating is 1-2 mm. The curing time of the polyurea coating 1 can be controlled within a few minutes, the traffic can be opened after the spraying is finished, and the repairing efficiency is high.
The polyurea coating is made of a material with excellent flexibility, and can absorb the impact energy of the vehicle to the maximum extent and ensure the safety of the lower structure. The wear resistance and the skid resistance are far superior to those of cement-based materials and epoxy materials, the abrasion of heavy-load and overloaded vehicles can be resisted without any grooving and galling treatment, and the good skid resistance is provided. In addition, the polyurea layer has outstanding high and low temperature resistance, can be used for a long time at the temperature of between 20 ℃ below zero and 80 ℃, has excellent aging resistance and weather resistance, well protects the epoxy mortar layer with the lower part not resistant to ultraviolet light, and prevents the peeling and falling of the epoxy mortar layer caused by illumination. The color of the coating is adjustable, and the color of the repaired pavement is consistent with that of the original concrete pavement.
The color of the polyurea coating can be adjusted, and preferably, the color of the polyurea coating is consistent with that of the original concrete pavement, so that the attractive appearance of the pavement is kept.
The ultra-low viscosity epoxy penetrant in the concrete surface repairing structure has extremely high permeability and permeates into pitted surface honeycomb concrete, so that the concrete with broken and loose matrix surface layer forms a whole with higher strength again, and a good foundation is provided for a repairing system; the rapid-hardening tough epoxy mortar layer can realize rapid curing open traffic of a system, has high compression resistance, fracture resistance and bonding strength and strong impact and shear resistance, forms high bonding strength with an original concrete matrix together with a penetrating agent at the lower part, and resists upper braking impact and shear together with a tough polyurea coating at the upper part; the tough polyurea coating can protect the epoxy mortar layer with the lower part not resistant to ultraviolet light, provides excellent wear resistance and skid resistance, and ensures that the color of the repaired pavement is consistent with that of the original concrete pavement.
Compared with the prior art, the beneficial effects of the utility model are that: the concrete surface repairing structure can interact with each other to form a better functional combination; meanwhile, the repairing structure is simple in structure, simple and convenient to construct, capable of opening traffic quickly after construction, reliable and durable in a repairing system, excellent in long-term fatigue impact resistance and shearing capacity in the environment of high-frequency braking of heavy-load overloaded vehicles, and capable of maintaining no cracking, no breaking and no debonding for a long time.
Drawings
FIG. 1 is a schematic structural view of the concrete surface wear-resistant and skid-resistant repairing structure.
In the figure: 1. a polyurea coating; 2. an epoxy mortar layer; 3. an epoxy penetrant layer.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, the concrete surface wear-resistant and anti-skid repair structure comprises an epoxy penetrant layer 3 coated on a concrete matrix, an epoxy mortar layer 2 filled in the concrete matrix and a polyurea coating 1 sprayed on the surface of the epoxy mortar layer 2. In the embodiment, the thickness of the polyurea coating 1 is 2mm, the color of the polyurea coating 1 is consistent with that of the original concrete pavement, and the attractiveness of the pavement is kept.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (3)
1. The structure is characterized by comprising an epoxy penetrant layer (3) coated on a damaged concrete matrix, an epoxy mortar layer (2) filled in the damaged concrete matrix and a polyurea coating (1) sprayed on the surface of the epoxy mortar layer (2).
2. The concrete surface abrasion-resistant and slip-resistant repair structure according to claim 1, wherein the thickness of the polyurea coating (1) is 1-2 mm.
3. A concrete surface wear-resistant anti-skid repair structure according to claim 1, wherein the polyurea coating (1) has a color identical to that of the original concrete pavement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220244297.6U CN217203447U (en) | 2022-01-27 | 2022-01-27 | Structure is restoreed to wear-resisting antiskid of concrete surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220244297.6U CN217203447U (en) | 2022-01-27 | 2022-01-27 | Structure is restoreed to wear-resisting antiskid of concrete surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217203447U true CN217203447U (en) | 2022-08-16 |
Family
ID=82795672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220244297.6U Expired - Fee Related CN217203447U (en) | 2022-01-27 | 2022-01-27 | Structure is restoreed to wear-resisting antiskid of concrete surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217203447U (en) |
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2022
- 2022-01-27 CN CN202220244297.6U patent/CN217203447U/en not_active Expired - Fee Related
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| 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: 20220816 |