CN215668926U

CN215668926U - Pavement repairing structure

Info

Publication number: CN215668926U
Application number: CN202122185376.2U
Authority: CN
Inventors: 王捷; 陈广辉; 李华; 张苏龙
Original assignee: Jiangsu Dongjiao Intelligent Control Technology Group Co ltd
Current assignee: Jiangsu Dongjiao Intelligent Control Technology Group Co ltd
Priority date: 2021-09-09
Filing date: 2021-09-09
Publication date: 2022-01-28
Anticipated expiration: 2031-09-09

Abstract

The utility model provides a pavement repairing structure, and relates to the field of pavement disease treatment. The pavement repairing structure is arranged in a pavement pit groove, comprises a filling layer and is a mixed layer formed by 3D printed solid wastes and concrete; the wearing layer is formed above the filling layer; the water sealing layer is formed above the wearing layer; a deformation layer and an adhesive layer. The pavement repairing structure has good combination degree with the pit, reduces the influence of pit repairing on traffic, prolongs the service life of the pavement, improves the utilization rate of solid wastes and protects the environment.

Description

Pavement repairing structure

Technical Field

The application relates to the field of pavement disease treatment, in particular to a pavement repairing structure.

Background

After the asphalt pavement is put into operation, the pit and the groove are easily damaged under the influence of load and water. If the treatment is not carried out in time, the road driving safety and the service life are greatly influenced after the pit slot is rapidly developed.

At present, three modes, namely hot-mixed asphalt mixture repairing, cold-mixed asphalt mixture repairing, hot-recycled asphalt mixture repairing and the like, are mainly used for treating pit and groove diseases of asphalt pavements. However, they have their own application disadvantages: the hot-mix asphalt mixture repairing needs to adopt special equipment to heat the asphalt mixture, which affects traffic and can not be unfolded under the condition of very low temperature, when a pit is deep, the repairing material at the bottom of the pit can not be uniformly heated, and old asphalt is easy to age; when the cold-mixed asphalt mixture is adopted for repairing, the traffic closing time is short, but the bonding performance between new and old materials is poor, and the loosening phenomenon is easy to occur, so that the disease relapse is caused; the mixing proportion of new and old materials repaired by the hot recycled asphalt mixture has no standard design method, the bottom surface diseases of the pit can not be thoroughly treated, the traffic shutdown time is long, and the area near the pit can still be damaged after maintenance.

And the utilization rate of the construction engineering garbage in China is low. According to incomplete statistics, the amount of construction waste materials generated in the urban construction process of China is up to 4500 tons each year. The treatment of waste building materials in China is mostly regarded as garbage treatment, and generally burial is the main treatment. Obviously, the treatment method not only causes serious waste of land use, but also influences the future living environment of people in the process of invisibility.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the present invention is to provide a pavement repair structure, which is a structure prepared by mixing the above solid waste with a material such as concrete and using a 3D printing technology to fill up a pit, so as to solve the problems that the existing pit damage treatment method affects traffic due to low efficiency and has poor treatment effect.

The utility model provides a pavement repairing structure, which is arranged in a pavement pit slot, wherein the pavement repairing structure comprises:

the filling layer is a mixed layer formed by 3D printing of raw materials including solid waste and concrete;

the wearing layer is formed above the filling layer; and

and the water sealing layer is formed above the wearing layer.

Preferably, the thickness of the filling layer is 1 cm-10 cm.

Preferably, the particle size of the solid waste in the filling layer is 5mm to 25 mm.

Preferably, the pavement patching structure is further formed with an adhesive layer, and the adhesive layer is formed at least on one side of the filling layer and is used for adhering the filling layer with the inner wall of the pavement pit groove.

Preferably, the thickness of the bonding layer is 1mm to 5 mm.

Preferably, the pavement patching structure is further formed with a deformation layer formed below the filling layer.

Preferably, the top of the deformation layer is attached to the bottom of the filling layer, and the thickness of the deformation layer is 0.8-1 mm.

Preferably, the adhesive layer is also formed at least one of the side portion and the bottom portion of the deformation layer so as to adhere the deformation layer to the pavement pit.

Preferably, the bottom of the wearing layer is connected with the top of the filling layer, and the thickness of the wearing layer is 0.8 cm-1 cm.

Preferably, the bottom of the water sealing layer is jointed with the top of the wearing layer, and the thickness of the water sealing layer is 1-3 mm.

According to the pavement repairing structure, the utilization rate of the construction waste solid waste is improved, and the environment is protected; the filling layer of the solid waste and the concrete prepared by 3D printing has good combination degree with the pit, the compressive strength of the filling layer is greatly enhanced, meanwhile, the influence of pit repairing on traffic is reduced, and the service life of the pavement is prolonged.

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic view of a pavement patching structure, according to an embodiment of the utility model;

fig. 2 is another schematic view of a pavement patching structure according to an embodiment of the utility model.

Icon: 1-a filling layer; 2-wearing layer; 3-sealing the water layer; 4-a tie layer; 5-a deformation layer.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, devices, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and/or systems described herein will be apparent to those skilled in the art in view of the disclosure of the present application. For example, the order of operations described herein is merely an example, which is not limited to the order set forth herein, but rather, variations may be made in addition to operations which must occur in a particular order, which will be apparent upon understanding the disclosure of the present application. Moreover, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and/or systems described herein that will be apparent after understanding the disclosure of the present application.

Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on," "connected to," coupled to, "over," or "overlying" another element, it may be directly "on," "connected to," coupled to, "over," or "overlying" the other element, or one or more other elements may be present therebetween. In contrast, when an element is referred to as being "directly on," "directly connected to," directly coupled to, "directly over" or "directly overlying" another element, there may be no intervening elements present.

As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.

Although terms such as "first", "second", and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section referred to in the examples described herein may be termed a second element, component, region, layer or section without departing from the teachings of the examples.

For ease of description, spatial relationship terms such as "above … …," "upper," "below … …," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "upper" relative to other elements would then be oriented "below" or "lower" relative to the other elements. Thus, the term "above … …" includes both an orientation of "above … …" and "below … …" depending on the spatial orientation of the device. The device may also be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.

Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.

The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application.

As shown in fig. 1, in the present embodiment, the pavement patching structure is formed with an adhesive layer 4, a deformation layer 5, a filling layer 1, an abrasion layer 2, and a water-blocking layer 3. When the asphalt pavement has pit damage, the bonding layer 4, the deformation layer 5, the filling layer 1, the wearing layer 2 and the water sealing layer 3 are sequentially paved in the pavement pit from bottom to top, so that the pavement pit damage can be repaired. Hereinafter, the specific structure of each part of the pavement patching structure according to the present invention will be described in detail.

In the present embodiment, as shown in fig. 1 to 2, the filling layer 1 is provided entirely in the pit as a portion that plays a supporting role in the road surface repairing structure. The supporting function herein means that the filling layer 1 can be a main force-bearing part of the road surface vehicle after the road surface repairing structure has dealt with the pit defect, in addition to the filling layer 1 being capable of supporting other parts in the road surface repairing structure.

In the present embodiment, the filling layer 1 is a mixed layer formed of solid waste and concrete including 3D printing. In addition, the components of the composite material also comprise materials such as an early strength agent and fibers, so that the filling layer 1 has higher compressive strength and better adhesiveness, and meanwhile, the durability of the filling layer 1, such as impermeability and frost resistance, is enhanced, and the service requirement of the pavement performance to be repaired can be met. Specifically, when a pit damage occurs on the road surface, a worker scans the pit after cleaning the pit to obtain specific parameters such as the shape, depth and width of the pit, grinds solid waste such as waste building materials, mixes the ground solid waste with the concrete, cement, recycled aggregate and the like, and performs 3D printing according to the scanning result to obtain the filling layer 1. As shown in fig. 1 to 2, the shape of the filling layer 1 completely matches the road surface pit, and the pit can be filled smoothly.

In order to ensure that the filling layer 1 has the best performance and the best combination degree with the pit, the thickness of the filling layer 1 is set to be 1 cm-10 cm, the particle size of the solid waste forming the filling layer 1 is set to be 5 mm-25 mm, and the proportion of the solid waste in the filling layer 1 is 70% -80%. The specific 3D printing process used in this embodiment is not limited, and may be a contour process or a concrete printing process.

In addition, in the present embodiment, as shown in fig. 2, in order to increase the degree of bonding between the filling layer 1 and the pit, adhesive layers 4 are formed on both the side and the bottom of the filling layer 1. That is, when the filling layer 1 is put into the pit as described above, the adhesive layer 4 is located between the filling layer 1 and the pit, bonding the two together. That is, the adhesive layer 4 has no specific shape, and is attached to the outer surface of the filling layer 1 to conform to the shape of the filling layer 1 and the pit.

The formation position and the area size of the adhesive layer 4 are not limited to these, and the adhesive layer 4 may be provided only on the bottom of the filler layer 1, or the adhesive layer 4 may be provided only on the side of the filler layer 1, as long as the connectivity between the filler layer 1 and the pit can be increased. In this embodimentIn the above, the adhesive layer 4 is formed by spreading an adhesive including epoxy resin, SBS or SBR. Further, the amount of the adhesive layer 4 spread should be controlled to 0.6m³/L～0.8m³The thickness of the layer/L is controlled to be 1mm to 5mm, so that the adhesive effect of the adhesive layer 4 can be maximized, and the connection strength between the filling layer 1 and the pit can be increased. The specific amount and thickness of the adhesive layer 4 will depend on the actual conditions of the pit to be repaired.

In the present embodiment, as shown in fig. 1, a deformation layer 5 is further formed below the filling layer 1 in order to flatten the pit bottom. At this time, the bottom of the filling layer 1 is no longer provided with the bonding layer 4, but is directly fixedly attached to the top of the deformation layer 5. And the bottom of the deformation layer 5 then needs to be laminated with the pit slot bottom, therefore all be provided with tie coat 4 in the lateral part and the bottom of deformation layer 5, and similarly, the position and the size of tie coat 4 that the bonding deformation layer 5 formed are all not limited to this also, as long as it can fix deformation layer 5 in pit slot bottom can to follow-up packing layer 1 of laying in the pit slot. It should be noted that, in this embodiment, the deformation layer 5 is made of a cold-mix asphalt mixture, so that the deformation layer 5 is more easily joined to the pit, and since the deformation layer 5 mainly serves to level the pit, the thickness thereof is 0.8cm to 1cm, and the specific thickness still needs to be determined according to actual data of the pit.

In addition, in the present embodiment, as shown in fig. 1 to 2, a wearing layer 2 is also formed above the filling layer 1. The bottom of the filling layer is attached to the top of the filling layer 1, laid and covered above the filling layer 1, and then fused with the pavement after being compacted. In the embodiment, the wearing layer 2 is made of the hot mix asphalt mixture AC-10, so that the wearing layer can have extremely high wear resistance when being subjected to friction of passing vehicles, thereby prolonging the service life of the pavement repairing structure. Similarly, the wearing course 2 has a thickness of 0.8cm to 1cm, and the thickness interval can best satisfy the service performance of the road surface, but the specific thickness thereof still needs to be determined according to actual conditions.

In addition, in the present embodiment, as shown in fig. 1 to fig. 2, a water seal layer 3 is further formed above the wearing layer 2, and is made of SBR emulsified asphalt or SBS modified emulsified asphalt, so that the water can be reduced from invading into the filling layer 1 therebelow, and the service life of the road surface repairing structure can be further increased. The thickness of the water sealing layer 3 is 1 mm-3 mm, the water sealing layer 3 can exert the strongest waterproof performance by the thickness, and the specific thickness is determined according to the actual condition of the road surface.

According to the pavement repairing structure disclosed by the utility model, the filling layer 1 made of solid wastes by utilizing the 3D printing technology has good service performances such as compressive strength and cold resistance, the environment is protected, and the influence of pit slot repairing on traffic is reduced. And tie coat 4 and deformation layer 5 make the joint degree of filling layer 1 and pot head improve greatly, and wearing and tearing layer 2 and water-tight layer 3 have then reduced the influence of natural factor such as rainwater, vehicle friction etc. to this structure for the life of this structure has obtained the extension.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present application, and are used for illustrating the technical solutions of the present application, but not limiting the same, and the scope of the present application is not limited thereto, and although the present application is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope disclosed in the present application; such modifications, changes or substitutions do not depart from the spirit and scope of the exemplary embodiments of the present application, and are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application should be defined by the claims.

Claims

1. The utility model provides a road surface repair structure, sets up in road surface pot hole inslot, its characterized in that, road surface repair structure includes:

the wearing layer is formed above the filling layer; and

and the water sealing layer is formed above the wearing layer.

2. The pavement patching structure of claim 1, wherein the filler layer has a thickness of 1cm to 10 cm.

3. The pavement patching structure of claim 1, wherein the solid waste in the filling layer has a particle size of 5mm to 25 mm.

4. The pavement patching structure of claim 1, further forming an adhesive layer on at least one side of the filling layer for adhering the filling layer to an inner wall of the pavement pit.

5. The pavement patching structure of claim 4, wherein the adhesive layer has a thickness of 1mm to 5 mm.

6. The pavement patching structure of claim 4, further formed with a deformation layer formed below the filling layer.

7. The pavement patching structure of claim 6, wherein the top of the deformation layer is attached to the bottom of the filling layer, and the thickness of the deformation layer is 0.8mm to 1 mm.

8. The pavement patching structure of claim 7, wherein the adhesive layer is also formed at least one of the side portion and the bottom portion of the deformation layer to bond the deformation layer to the pavement pit.

9. The pavement patching structure of claim 1, wherein the bottom of the wearing course layer is joined to the top of the infill layer, the wearing course layer having a thickness of 0.8cm to 1 cm.

10. The pavement patching structure of claim 1, wherein the bottom of the water-blocking layer is joined to the top of the wearing course layer, and the water-blocking layer has a thickness of 1mm to 3 mm.