Self-early-warning and self-repairing asphalt concrete pavement

Abstract

The utility model discloses a self-early warning and self-repairing asphalt concrete pavement, which relates to the technical field of asphalt concrete pavement repairing, and comprises an asphalt concrete pavement, a plurality of early warning mechanisms and a plurality of heating mechanisms are pre-embedded in the asphalt concrete pavement, each heating mechanism comprises a metal frame, a resistance heating sheet is embedded in each metal frame, and the resistance heating sheets are embedded in the metal frames. A first wire pipe is fixedly connected to the front side of the bottom of the metal frame, a controller is fixedly connected to the front side of the first wire pipe, and a first electric wire is fixedly and electrically connected between the resistance heating piece and the controller. The self-early-warning function can be achieved through cooperation of the first wire, the second wire and the controller, after early warning is received, the controller can control the resistance heating piece to conduct heating, and the metal frame and the stainless steel wire net are used for evenly diffusing heat to heat asphalt in the asphalt concrete road so that the asphalt can be softened or even melted. Softened or melted asphalt can flow into the crack to automatically bond the crack, and the overall self-repairing effect is better.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt concrete pavement repair, in particular to a self-warning and self-repairing asphalt concrete pavement. Background Art

[0002] During road construction, different materials are used for paving according to actual needs, including asphalt concrete roads. The asphalt concrete used is commonly known as asphalt concrete. It is a mixture of artificially selected mineral materials with a certain graded composition, crushed stone or crushed gravel, stone chips or sand, mineral powder, etc., and a certain proportion of road asphalt materials, mixed under strictly controlled conditions. After a long period of use, cracking of the asphalt concrete pavement is inevitable. There is also a microcapsule self-repairing technology in the prior art that can realize the self-repair function of cracks in asphalt concrete pavement;

[0003] After searching, Chinese patent number CN202120513767.X discloses a self-warning and self-repairing asphalt concrete pavement, including an asphalt concrete layer, in which shape memory alloy and self-repairing microcapsules are mixed; characterized in that the self-repairing microcapsules include micron-scale self-repairing microcapsules and millimeter-scale self-repairing microcapsules;

[0004] The above-mentioned public documents divide the microcapsule design used in the microcapsule self-repair technology into two types: micron-level self-repair microcapsules and millimeter-level self-repair microcapsules, in order to deal with the self-repair of cracks at different stages, early and late. There are many reasons for cracking of asphalt concrete roads, including excessive temperature differences leading to cracking of the road surface. The above-mentioned technical solutions can only play a simple repair role, and cannot play a preventive role. At the same time, the degree of repair that microcapsules can play is also limited.

[0005] Therefore, in order to solve the above problems, the present application proposes a self-warning and self-repairing asphalt concrete pavement. Utility Model Content

[0006] 1. Technical issues to be resolved

[0007] In view of the deficiencies in the prior art, the utility model provides a self-warning and self-repairing asphalt concrete pavement, which solves the problem of pavement cracking due to excessive temperature difference in asphalt concrete roads and plays a preventive role. At the same time, the repair degree that microcapsules can play is also limited.

[0008] (II) Technical solution

[0009] To achieve the above objectives, the utility model is implemented through the following technical solutions: a self-warning and self-repairing asphalt concrete pavement. It includes an asphalt concrete road, wherein a plurality of warning mechanisms and a plurality of heating mechanisms are pre-buried inside the asphalt concrete road, wherein the heating mechanism includes a metal frame, wherein the metal frame is buried inside the asphalt concrete road, wherein a resistance heating sheet is embedded inside the metal frame, wherein a wire tube 1 is fixedly connected to the front side of the bottom of the metal frame, wherein the wire tube 1 is located inside the asphalt concrete road and extends to the front side of the asphalt concrete road, wherein a controller is fixedly connected to the front side of the wire tube 1, wherein a wire 1 is fixedly electrically connected between the resistance heating sheet and the controller, wherein the wire 1 is located inside the wire tube 1, wherein a plurality of microcapsules are filled inside the asphalt concrete road.

[0010] Preferably, the early warning mechanism includes a metal guide wire 1, which is electrically connected to a controller and is located below a metal frame. Two metal guide wires 2 are fixedly connected to one end of the metal guide wire 1, which is located above the metal frame, and the ends of the metal guide wires 2 are electrically connected to the controller, and the ends of the metal guide wire 1 and the metal guide wire 2 connected to the controller both extend into the interior of the wire tube 1.

[0011] Preferably, a plurality of stainless steel wire meshes are pre-buried inside the asphalt concrete road, the stainless steel wire meshes are located on the top of the metal frame, and the stainless steel wire meshes are located below the second metal guide wire.

[0012] Preferably, a wire pipe 2 is installed below the front side of the asphalt concrete road, a plurality of wire pipes 3 are fixedly connected to the top of the wire pipe 2, and the top of the wire pipe 3 is fixedly connected to the bottom of the controller.

[0013] Preferably, a data line and a second electric wire are installed through the inside of the second wire tube, and the data line and the second electric wire pass through the third wire tube and are electrically connected to the controller.

[0014] (III) Beneficial effects

[0015] The utility model provides a self-warning and self-repairing asphalt concrete pavement. It has the following beneficial effects:

[0016] Through the cooperation of conductor one, conductor two and the controller, the crack position of the asphalt concrete road can be timely known when the road surface cracks and causes the conductor two to break, which plays a self-warning function. When the cracks in the asphalt concrete road are self-repaired, the cracks can be repaired by using the repair agent through the rupture of the microcapsules in the early stage. After receiving the warning, the controller can control the heating of the resistance heating plate, and use the metal frame and stainless steel wire mesh to evenly diffuse the heat to heat the asphalt in the asphalt concrete road to soften or even melt it. The softened or melted asphalt can flow into the cracks to automatically bond the cracks. Compared with the single microcapsule repair, the overall self-repair effect is better. At the same time, when the temperature difference is too large, the heating mechanism can be started to heat the asphalt concrete road to reduce the temperature difference, thereby protecting the asphalt concrete road and preventing cracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a self-warning and self-repairing asphalt concrete pavement proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the early warning mechanism and heating mechanism of a self-warning and self-repairing asphalt concrete pavement proposed by the utility model;

[0019] Figure 3 The utility model proposes a self-warning and self-repairing asphalt concrete pavement Figure 2 A schematic diagram of the enlarged structure of the middle part A;

[0020] Figure 4 This is a schematic diagram of the structure of a resistance heating sheet for a self-warning and self-repairing asphalt concrete pavement proposed by the utility model;

[0021] Figure 5 This is a schematic diagram of the metal frame and stainless steel wire mesh structure of a self-warning and self-repairing asphalt concrete pavement proposed by the utility model;

[0022] Figure 6 The utility model is a schematic diagram of a partial cross-sectional structure of an asphalt concrete road of a self-warning and self-repairing asphalt concrete road surface.

[0023] Numbers in the figure: 1. asphalt concrete road, 2. metal frame, 3. resistance heating plate, 4. wire tube one, 5. controller, 6. electric wire one, 7. metal guide wire one, 8. metal guide wire two, 9. wire tube two, 10. wire tube three, 11. data cable, 12. electric wire two, 13. stainless steel wire mesh, 14. microcapsule. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 6 The utility model provides a technical solution: a self-warning and self-repairing asphalt concrete pavement. It includes an asphalt concrete road 1, wherein a plurality of warning mechanisms and a plurality of heating mechanisms are pre-buried inside the asphalt concrete road 1, wherein the heating mechanism includes a metal frame 2, wherein the metal frame 2 is buried inside the asphalt concrete road 1, wherein a resistance heating sheet 3 is embedded inside the metal frame 2, wherein a wire tube 4 is fixedly connected to the front side of the bottom of the metal frame 2, wherein the wire tube 4 is located inside the asphalt concrete road 1 and extends to the front side of the asphalt concrete road 1, wherein a controller 5 is fixedly connected to the front side of the wire tube 4, wherein a wire 6 is fixedly electrically connected between the resistance heating sheet 3 and the controller 5, wherein the wire 6 is located inside the wire tube 4, wherein a plurality of microcapsules 14 are filled inside the asphalt concrete road 1, wherein the microcapsules 14 are composed of a capsule core and a capsule wall, wherein the capsule core is a repairing agent, wherein the microcapsule self-repairing technology is an existing technology, and thus no further elaboration is made here, wherein the heating mechanism can not only operate to self-repair the cracks when the asphalt concrete road 1 is cracked, but also heat the asphalt concrete road 1 to reduce the temperature difference when the temperature difference is too large to protect and prevent the asphalt concrete road 1 from cracking. The control chip in the controller 5 may be a single chip microcomputer, which is mainly used to detect whether the circuit loop in the early warning mechanism is normal, and subsequently send instructions to control the operation of the resistance heating plate 3.

[0026] The early warning mechanism includes a metal wire 7, which is electrically connected to a controller 5. The metal wire 7 is located below the metal frame 2. Two metal wires 8 are fixedly connected to the end of the metal wire 7. The metal wire 8 is located above the metal frame 2, and the end of the metal wire 8 is electrically connected to the controller 5. The ends of the metal wire 7 and the metal wire 8 connected to the controller 5 both extend into the inside of the wire tube 4. A circuit loop is formed between the metal wire 7, the metal wire 8 and the controller 5 in the early warning mechanism. When the asphalt concrete road 1 cracks and causes the metal wire 8 to break, due to the disconnection of the circuit, the controller 5 can determine that the pavement of the asphalt concrete road 1 is cracked, thereby controlling the operation of the heating mechanism to self-repair the cracks.

[0027] A plurality of stainless steel wire meshes 13 are embedded inside the asphalt concrete road 1. The stainless steel wire meshes 13 are located on the top of the metal frame 2 and below the metal guide wire 8. The stainless steel wire meshes 13 have good high temperature resistance and thermal conductivity. After the resistance heating sheet 3 heats the metal frame 2, the heat on the metal frame 2 can not only directly heat the asphalt concrete road 1, but also transfer the heat to the stainless steel wire mesh 13, and evenly transfer the heat to the asphalt concrete road 1 through the stainless steel wire mesh 13 to heat the asphalt.

[0028] A wire tube 2 9 is installed at the lower front side of the asphalt concrete road 1, and a plurality of wire tubes 3 10 are fixedly connected to the top of the wire tube 2 9. The top of the wire tube 3 10 is fixedly connected to the bottom of the controller 5. A data line 11 and an electric wire 2 12 are installed through the inside of the wire tube 2 9. The data line 11 and the electric wire 2 12 pass through the wire tube 3 10 and are electrically connected to the controller 5. The wire tube 2 9 and the wire tube 3 10 can be pre-buried in the soil on the roadside to protect the lines. The electric wire 2 12 can provide electrical energy. The electric wire 2 12 can directly draw electricity from the existing circuit facilities on the roadside. The data line 11 can transmit the data of the controller 5 to the background control center so that the staff can know the specific situation.

[0029] In the first embodiment, when working, multiple controllers 5 transmit data with the background control center through the data line 11, so as to inform the staff of the cracking of the asphalt concrete road 1 in time. When the asphalt concrete road 1 cracks, the microcapsules 14 located at the cracks in the asphalt concrete road 1 will be torn to make the asphalt repair agent inside it flow out and mix with the asphalt to bond the cracks. If the cracks continue to increase and cause the metal guide wire 2 8 to be pulled off, the circuit loop between the metal guide wire 1 7 and the metal guide wire 2 8 and the controller 5 will be disconnected. At this time, the corresponding controller 5 will detect the circuit breakage problem and determine that the pavement of the asphalt concrete road 1 is cracked and control the resistance heating plate 3 to start heating. The resistance heating plate 3 can heat the metal frame 2 when heating. While heating the asphalt concrete road 1, the metal frame 2 will also evenly diffuse the heat inside the asphalt concrete road 1 through the stainless steel wire mesh 13. The asphalt in the asphalt concrete road 1 will soften or even melt after heating. The softened or melted asphalt will automatically level and fill and bond the cracks on the asphalt concrete road 1.

[0030] In summary, through the cooperation of wire one, wire two and the controller, the crack position of the asphalt concrete road can be timely known when the road surface cracks and causes the wire two to break, which plays a self-warning function. When the cracks in the asphalt concrete road are self-repaired, the cracks can be repaired by using the repair agent through the rupture of the microcapsules in the early stage. After receiving the warning, the controller can control the heating of the resistance heating plate, and use the metal frame and stainless steel wire mesh to evenly diffuse the heat to heat the asphalt in the asphalt concrete road to soften or even melt it. The softened or melted asphalt can flow into the cracks to automatically bond the cracks. Compared with the single microcapsule repair, the overall self-repair effect is better. At the same time, when the temperature difference is too large, the heating mechanism can be started to heat the asphalt concrete road to reduce the temperature difference, thereby protecting the asphalt concrete road and preventing cracks.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A self-warning and self-repairing asphalt concrete pavement, comprising an asphalt concrete road (1), characterized in that: The asphalt concrete road (1) has a plurality of early warning mechanisms and a plurality of heating mechanisms pre-buried inside; The heating mechanism comprises a metal frame (2), the metal frame (2) is buried inside the asphalt concrete road (1), a resistance heating plate (3) is embedded inside the metal frame (2), a wire tube (4) is fixedly connected to the front side of the bottom of the metal frame (2), the wire tube (4) is located inside the asphalt concrete road (1) and extends to the front side of the asphalt concrete road (1), a controller (5) is fixedly connected to the front side of the wire tube (4), an electric wire (6) is fixedly electrically connected between the resistance heating plate (3) and the controller (5), the electric wire (6) is located inside the wire tube (4), and the asphalt concrete road (1) is filled with a plurality of microcapsules (14).

2. The self-warning and self-repairing asphalt concrete pavement according to claim 1 is characterized by: The early warning mechanism comprises a metal guide wire (7), the metal guide wire (7) is electrically connected to a controller (5), the metal guide wire (7) is located below the metal frame (2), the end of the metal guide wire (7) is fixedly connected to two metal guide wires (8), the metal guide wires (8) are located above the metal frame (2), and the ends of the metal guide wires (8) are electrically connected to the controller (5), and the ends of the metal guide wire (7) and the metal guide wire (8) connected to the controller (5) both extend into the interior of the wire tube (4).

3. The self-warning and self-repairing asphalt concrete pavement according to claim 2 is characterized by: A plurality of stainless steel wire meshes (13) are pre-buried inside the asphalt concrete road (1), the stainless steel wire meshes (13) are located on the top of the metal frame (2), and the stainless steel wire meshes (13) are located below the second metal guide wire (8).

4. The self-warning and self-repairing asphalt concrete pavement according to claim 1 is characterized by: A wire pipe 2 (9) is installed at the lower front side of the asphalt concrete road (1), a plurality of wire pipes 3 (10) are fixedly connected to the top of the wire pipe 2 (9), and the top of the wire pipe 3 (10) is fixedly connected to the bottom of the controller (5).

5. The self-warning and self-repairing asphalt concrete pavement according to claim 4 is characterized by: The second wire tube (9) is provided with a data line (11) and a second wire (12) which pass through the inside of the second wire tube (9); the data line (11) and the second wire (12) pass through the third wire tube (10) and are electrically connected to the controller (5).

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