Modular asphalt pavement rapid repair structure

Abstract

This utility model belongs to the field of road repair structure technology and discloses a modular asphalt pavement rapid repair structure, including at least one set of pre-encapsulated asphalt fusible bag-shaped units. The pre-encapsulated asphalt fusible bag-shaped units include multiple interlocking repair splicing units. Each repair splicing unit includes an inner low-temperature dissolving film, and the inner low-temperature dissolving film is internally encapsulated with a certain amount of modified asphalt. This utility model fills the damaged depressions by setting multiple repair splicing units, eliminating the need for manual spreading of asphalt, greatly reducing the difficulty of construction operations. Under the action of an external heat source, the inner low-temperature dissolving film dissolves rapidly, providing smooth conditions for the melting and flow of modified asphalt, which can fully fill various gaps in the damaged area. The molten modified asphalt bonds tightly with the road surface to be treated, and the cooling and solidification speed is fast, greatly shortening the construction cycle and the time to open traffic, perfectly adapting to the needs of emergency repairs and efficient repair of busy road sections.

Description

Technical Field

[0001] This utility model belongs to the field of road repair structure technology, specifically a modular asphalt pavement rapid repair structure. Background Technology

[0002] Asphalt pavements are widely used in various traffic scenarios, including urban roads, highways, and rural roads, due to their advantages such as driving comfort and convenient construction. However, under the combined effects of long-term traffic loads, changes in ambient temperature, and rainwater erosion, asphalt pavements are prone to damage such as potholes, subsidence, and cracks. If not repaired in time, these defects will not only affect driving safety and comfort but also exacerbate the damage and increase subsequent maintenance costs.

[0003] For example, an asphalt pavement repair structure with publication number CN219637603U includes a trench carved into the original road structure. The original pavement structure consists of an original pavement surface layer, an original pavement base layer, and an original roadbed from top to bottom. The trench includes a first trench section located in the original roadbed, a second trench section located in the original pavement surface layer, and a third trench section located in the original pavement base layer. Pipes are laid in the first trench section. After traffic is opened, the pavement is not prone to subsidence. The joint between the repaired pavement and the existing pavement is not easily damaged. The structure is stable, improving the service life of the road and driving comfort.

[0004] The above-mentioned solutions can make the joint between the repaired road surface and the existing road surface less prone to damage. However, the existing repair technology for asphalt pavement damage mainly relies on on-site mixing and pouring, which requires the use of multiple professional equipment. The construction operation is difficult, and uneven paving is prone to occur when manually spreading asphalt. Furthermore, a complete construction process is still required for small-area damage, which has the disadvantages of material waste and excessively high labor costs. Utility Model Content

[0005] To address the problems mentioned in the background section, this utility model provides a modular asphalt pavement rapid repair structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular asphalt pavement rapid repair structure, including the pavement to be treated, and at least one set of pre-encapsulated asphalt fusible bag-shaped units. The pre-encapsulated asphalt fusible bag-shaped units include multiple interlocking repair splicing units. Each repair splicing unit includes an inner low-temperature dissolving film, the inner low-temperature dissolving film encapsulating a fixed amount of modified asphalt. Indentation side strips are fixedly connected to all four sides of each repair splicing unit. An easy-tear serrated strip is provided at the end of the indentation side strip away from the repair splicing unit. Multiple supporting inner columns are fixedly connected inside the inner low-temperature dissolving film, and the multiple supporting inner columns are rectangularly distributed. A pressure balancing ring is fixedly connected to the side of the inner low-temperature dissolving film. Multiple airflow transmission holes are opened on the surface of the pressure balancing ring, and the aperture of the airflow transmission holes is smaller than the particle size of the modified asphalt.

[0007] Preferably, multiple repair splicing units are laid on the road surface to be treated, and the upper end of the road surface to be treated has a damaged depression.

[0008] Preferably, the lower end of the repair splicing unit is fixedly connected to a stabilizing bottom layer, and the lower end of the stabilizing bottom layer is fixedly connected to multiple anti-slip protrusions.

[0009] Preferably, the plurality of anti-slip protrusions are evenly distributed, and the anti-slip protrusions and the lower inner wall of the damaged depression are in contact with each other.

[0010] Preferably, multiple repair splicing units are evenly laid in the damaged depression, and the outer layer of the inner low-temperature dissolving film is fixedly connected to an outer high-temperature resistant support film.

[0011] Preferably, a honeycomb-shaped buffer layer is fixedly connected between the outer high-temperature resistant support film and the inner low-temperature dissolving film, and the honeycomb-shaped buffer layer is wrapped around the outside of the modified asphalt.

[0012] Preferably, two adjacent repair splice units are connected to each other by indentation side strips, and the height of the plurality of supporting inner columns in the repair splice unit is higher than the filling height of the modified asphalt.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention fills damaged and recessed areas by setting multiple repair splicing units, eliminating the need for manual asphalt spreading and significantly reducing the difficulty of construction. Under the action of an external heat source, the inner low-temperature dissolving film dissolves rapidly, providing smooth conditions for the melting and flow of modified asphalt. It can fully fill various gaps in the damaged area. The molten modified asphalt bonds tightly with the road surface to be treated and cools and solidifies quickly, greatly shortening the construction cycle and the time to open traffic. It is perfectly suited to the needs of emergency repairs and efficient repair of busy road sections.

[0014] The outer high-temperature resistant support membrane effectively resists the deformation and damage of the modules caused by transportation bumps and stacking compression. The inner honeycomb buffer layer tightly wraps the modified asphalt, which can evenly distribute the external pressure to all parts of the module. Moreover, the inner support column is higher than the asphalt filling height, which can form a rigid support structure to prevent the asphalt from being compacted and lumped when the modules are stacked, ensuring that the asphalt has good melt fluidity in subsequent construction. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the road surface to be treated according to this utility model; Figure 2 This is a schematic diagram of the structure of the damaged and recessed area of ​​this utility model; Figure 3 This is a schematic diagram of the repair and splicing unit structure of this utility model; Figure 4 This is a schematic diagram of the inner low-temperature dissolution film structure of this utility model; Figure 5 This is a side view cross-sectional diagram of the inner low-temperature dissolution film of this utility model.

[0016] In the diagram: 1. Road surface to be treated; 2. Damaged and sunken area; 3. Repair splice unit; 4. Indentation side strip; 5. Easy-tear serrated strip; 6. Inner low-temperature dissolving film; 7. Supporting inner column; 8. Pressure balance ring; 9. Modified asphalt; 10. Stabilized base layer; 11. Anti-slip protrusions; 13. Outer high-temperature resistant support film; 14. Honeycomb buffer layer; 15. Airflow transmission hole. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] like Figures 1 to 5 As shown, this utility model provides a modular asphalt pavement rapid repair structure, including a pavement to be treated 1, and at least one set of pre-encapsulated asphalt fusible bag-shaped units. The pre-encapsulated asphalt fusible bag-shaped units include multiple interlocking repair splicing units 3. Each repair splicing unit 3 includes an inner low-temperature dissolving film 6. The inner low-temperature dissolving film 6 is internally encapsulated with a quantitative amount of modified asphalt 9. Each of the four sides of the repair splicing unit 3 is fixedly connected with an indentation side strip 4. The end of the indentation side strip 4 away from the repair splicing unit 3 is provided with an easy-tear serrated strip 5. The inner low-temperature dissolving film 6 is internally fixedly connected with multiple supporting inner columns 7, which are distributed in a rectangular pattern.

[0019] The above scheme uses modified asphalt, which is an asphalt mixture suitable for cold or hot patching. It is granular or blocky and filled into the membrane. The tooth spacing of the easy-tear saw 5 is set to 2 mm, and the module can be disassembled by hand without special tools, which is suitable for the needs of rapid on-site operation.

[0020] like Figures 1 to 5 As shown, a pressure balance ring 8 is fixedly connected to the side of the inner low-temperature dissolving film 6. The surface of the pressure balance ring 8 is provided with multiple airflow transmission holes 15. The diameter of the airflow transmission holes 15 is smaller than the particle size of the modified asphalt 9.

[0021] The above solution employs a biodegradable polymer film with a melting point lower than the asphalt flow temperature but higher than the room temperature storage temperature. It can completely dissolve within five seconds of being heated, leaving no residual impurities and not affecting the performance of the modified asphalt 9. The heat source equipment can be flexibly selected according to the construction scenario, such as a handheld liquefied gas hot air blower. Heating can be stopped once the inner low-temperature dissolving film 6 is completely dissolved and the modified asphalt 9 is in a flowing state. During the heating process, it is necessary to keep away from flammable materials, and operators should wear high-temperature resistant protective gloves and goggles to ensure construction safety.

[0022] like Figures 1 to 5 As shown, an outer high-temperature resistant support membrane 13 is fixedly connected to the outer layer of the inner low-temperature dissolving membrane 6. A honeycomb buffer layer 14 is fixedly connected between the outer high-temperature resistant support membrane 13 and the inner low-temperature dissolving membrane 6. The honeycomb buffer layer 14 is wrapped around the outer side of the modified asphalt 9. Multiple repair splicing units 3 are laid on the road surface 1 to be treated. The upper end of the road surface 1 to be treated has a damaged depression 2. The lower end of the repair splicing unit 3 is fixedly connected to a stable base layer 10. The lower end of the stable base layer 10 is fixedly connected to multiple anti-slip protrusions 11. The multiple anti-slip protrusions 11 are evenly distributed among each other. The anti-slip protrusions 11 and the lower inner wall of the damaged depression 2 are in contact with each other. Multiple repair splicing units 3 are evenly laid in the damaged depression 2.

[0023] The above solution is adopted: the anti-slip protrusion 11 is a conical structure, which contacts the inner wall of the damaged depression 2 to increase friction and effectively prevent the module from shifting during construction. It can achieve accurate positioning even on sloping roads, greatly reducing the difficulty of construction.

[0024] Working principle and usage process of this utility model: During product transportation and storage, the outer high-temperature resistant support membrane 13 can effectively resist the deformation and damage of the module caused by transportation bumps and stacking compression. The honeycomb buffer layer 14 between the inner low-temperature dissolving membrane 6 tightly wraps the outside of the modified asphalt 9, which can evenly distribute the external pressure and ensure the stability of the modified asphalt 9. At the same time, the rectangular support columns 7 inside the inner low-temperature dissolving membrane 6 are higher than the filling height of the modified asphalt 9, which can prevent the modified asphalt 9 from being compacted and lumped when the modules are stacked, and ensure that the asphalt has good melt flowability in subsequent construction. The material of the support columns 7 is a fusible material of the same type as the inner membrane. Specifically, it is a small support that does not affect the final road performance after melting. In addition, the pressure balance ring 8 can timely discharge the air that is heated and expanded inside the module through the airflow transmission hole 15 during transportation, preventing the bag from bulging and rupturing due to excessive air pressure. Before the repair work begins, the damaged depression 2 of the road surface to be treated must be thoroughly cleaned to remove dust, loose aggregate and water, and ensure that the base surface is dry and clean. Then, based on the actual area of ​​the damaged depression 2, the required number of modules are precisely disassembled using the easy-tear serrated strip 5 at the end of the side indentation strip 4 of the repair splicing unit 3. The serrated structure of the easy-tear serrated strip 5 can make the modules disassembled with less effort. When the disassembled repair splicing unit 3 is placed into the damaged depression 2, the anti-slip protrusions 11 of the bottom layer 10 of the module will fit tightly with the inner wall of the damaged depression 2, thereby increasing the frictional resistance to prevent the module from shifting and quickly completing the construction positioning. Then, the heating and repair stage can begin. The heat source equipment is aimed at the module above the damaged depression 2 and heated evenly. The inner low-temperature dissolving film 6 melts rapidly after being heated, and the modified asphalt 9 filled inside melts and flows naturally, fully filling the gaps in the damaged depression 2. After the molten modified asphalt 9 is firmly bonded to the base surface of the road surface 1 to be treated and naturally cools and solidifies, the rapid road repair can be completed.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A modular asphalt pavement rapid repair structure, comprising the pavement to be treated (1), characterized in that: The device includes at least one set of pre-encapsulated asphalt fusible bag units, each pre-encapsulated asphalt fusible bag unit comprising multiple interlocking repair splicing units (3), each repair splicing unit (3) comprising an inner low-temperature dissolving film (6), the inner low-temperature dissolving film (6) containing a fixed amount of modified asphalt (9), each repair splicing unit (3) having an indentation side strip (4) fixedly connected to all four sides, the indentation side strip (4) having an easy-tear serrated strip (5) at the end away from the repair splicing unit (3), the inner low-temperature dissolving film (6) having multiple supporting inner columns (7) fixedly connected inside, the multiple supporting inner columns (7) being rectangularly distributed, the inner low-temperature dissolving film (6) having a pressure balance ring (8) fixedly connected to the side, the pressure balance ring (8) having multiple airflow transmission holes (15) on its surface, the diameter of the airflow transmission holes (15) being smaller than the particle size of the modified asphalt (9).

2. The modular asphalt pavement rapid repair structure according to claim 1, characterized in that: Multiple repair splicing units (3) are laid on the road surface (1) to be treated, and the upper end of the road surface (1) to be treated has a damaged depression (2).

3. The modular asphalt pavement rapid repair structure according to claim 1, characterized in that: The lower end of the repair splicing unit (3) is fixedly connected to a stabilizing bottom layer (10), and the lower end of the stabilizing bottom layer (10) is fixedly connected to multiple anti-slip protrusions (11).

4. The modular asphalt pavement rapid repair structure according to claim 3, characterized in that: The anti-slip protrusions (11) are evenly distributed among each other, and the anti-slip protrusions (11) and the lower inner wall of the damaged depression (2) are in contact with each other.

5. The modular asphalt pavement rapid repair structure according to claim 2, characterized in that: Multiple repair splicing units (3) are evenly laid in the damaged depression (2), and the outer layer of the inner low-temperature dissolving film (6) is fixedly connected to the outer high-temperature resistant support film (13).

6. The modular asphalt pavement rapid repair structure according to claim 5, characterized in that: A honeycomb buffer layer (14) is fixedly connected between the outer high-temperature resistant support membrane (13) and the inner low-temperature dissolving membrane (6), and the honeycomb buffer layer (14) is wrapped around the outside of the modified asphalt (9).

7. The modular asphalt pavement rapid repair structure according to claim 1, characterized in that: Two adjacent repair splice units (3) are connected to each other by indentation side strips (4), and the height of the multiple supporting inner columns (7) in the repair splice unit (3) is higher than the filling height of the modified asphalt (9).

Images