Multi-position fracture type self-cutting filling structural body for repairing asphalt pavement cracks

Abstract

The utility model discloses a multi-position fracture type self-cutting filling structure body for repairing cracks of an asphalt pavement. At present, when the asphalt pavement is damaged to form a large-width deep crack, the repair mode of the large-width deep crack does not have a corresponding standard and unified treatment mode. When the double-capsule-structure single body is adopted, the two polygonal frames are arranged on the top face and the bottom face of the bottom piece, each center containing capsule is arranged on the bottom piece, the outer capsule wall of each center containing capsule and the inner wall of the corresponding polygonal frame are arranged in a clearance mode, each center containing capsule is filled with capsule type asphalt mixtures, and a plurality of cut fracture dents are machined on the bottom piece. When the multi-bag sheet-shaped structural body is adopted, an accommodating groove is formed between the inner wall of each polygonal frame body and the bottom sheet, a central accommodating bag is correspondingly arranged in each polygonal frame body, each central accommodating bag is arranged in the accommodating groove, and a plurality of supporting plates are uniformly distributed around the central accommodating bags; and a tearing and shearing gap is formed between the end parts of two adjacent supporting plates in the same polygonal frame body and the outer side wall of the main connecting piece.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of multi-position broken formula self-cutting filling structure for asphalt pavement crack repair. BACKGROUND

[0002] When winter temperature drops too fast, the temperature stress in the asphalt surface layer cannot be relieved in time, and the relaxation performance cannot be fully played, so shrinkage cracks, called temperature shrinkage cracks, will occur. In addition, repeated temperature changes cause temperature stress fatigue, which reduces the ultimate tensile strain of the mixture. In addition, the aging of asphalt increases the stiffness of asphalt and reduces the stress relaxation performance. The semi-rigid base layer generates dry shrinkage stress as the moisture of the mixture decreases during construction, forming dry shrinkage cracks. The segregation of base mixture, the lack of compaction and the unreasonable mechanical combination cause the fine particles on the upper part of the base layer to float, forming a thin layer with weak strength, which is prone to tortuous cracks under traffic load. Improper curing of semi-rigid base layer can directly affect the formation of dry shrinkage cracks. If the seal coat or primer is not applied in time after curing, dry shrinkage cracks will also occur as the exposure time increases. The above process is only a typical case of multiple causes of asphalt pavement cracking. Asphalt pavement needs to be repaired in time after cracking. The repair process is limited by weather, traffic, construction conditions and cycle, making the operation relatively difficult. Especially, the asphalt repair construction period is long and affected by many factors such as material supply, construction environment and personnel allocation. In particular, in some large repair projects, the construction period may last for several months. This will have a great impact on surrounding residents and traffic. Local repair also occupies a certain operation period. The current local repair method is mostly pouring repair, which is prone to uneven repair position and repair effect. There is a repair blind area that affects the repair effect. When the pavement cracking is large or the number is large, a large width and depth crack is formed, which can be repaired by pavement covering. Asphalt, cement concrete and other materials are used for covering, which is suitable for large-area repair. The excavation operation of asphalt pavement cracking position will cause a large area of damage. There is no uniform treatment method for the repair method of wide and deep cracks during the excavation process. CONTENT OF THE UTILITY MODEL

[0003] To overcome the defects of the prior art, a multi-position broken formula self-cutting filling structure for asphalt pavement crack repair is provided to solve the above problems.

[0004] The utility model provides a kind of multi-position fracture formula self-cutting filling structure for asphalt pavement crack repair, and multi-position fracture formula self-cutting filling structure is double capsule structure monomer, double capsule structure monomer includes bottom sheet, two polygonal frame bodies and two center capsule, the bottom sheet is horizontally arranged, two polygonal frame bodies are respectively arranged on the top surface and bottom surface of bottom sheet, the inner wall of each polygonal frame body is formed with a containing groove between bottom sheet, each containing groove is correspondingly provided with one center capsule, each center capsule is arranged on bottom sheet, the outer capsule wall of each center capsule is gap arranged between the inner wall of polygonal frame body, each center capsule is filled with capsule type asphalt mixture, bottom sheet is processed with multiple cutting fracture indentations, one end of each cutting fracture indentation is communicated with the edge of bottom sheet, the other end of each cutting fracture indentation is attached to the outer wall of center capsule.

[0005] As a preferred scheme: the bottom sheet is a polygonal sheet, the shape of the bottom sheet is matched with the shape of the polygonal frame body, each polygonal frame body includes a plurality of support plates, the plurality of support plates are uniformly arranged along the circumferential edge of the bottom sheet, one support plate is correspondingly arranged at each edge of the bottom sheet, the bottom side of each support plate is fixedly connected with the bottom sheet, and a shearing gap is formed between each end of each support plate and the end of the adjacent support plate, and one cutting fracture indentation is correspondingly arranged in each shearing gap.

[0006] As a preferred scheme: a long hole is formed in each support plate along the thickness direction of the support plate, the length direction of each long hole is the same as the length direction of the support plate, and each long hole is communicated with the corresponding containing groove.

[0007] As a preferred scheme: the center capsule is a hemispherical capsule.

[0008] As a preferred scheme: the bottom sheet is a flexible sheet.

[0009] A kind of multi-position fracture formula self-cutting filling structure for asphalt pavement crack repair, and multi-position fracture formula self-cutting filling structure is multi-capsule sheet structure, and multi-capsule sheet structure includes total connecting sheet, 2N polygonal frame bodies and 2N center capsules, N polygonal frame bodies are arranged on the two sides of total connecting sheet respectively, a containing groove is formed between the inner wall of each polygonal frame body and total connecting sheet, one center capsule is correspondingly arranged in each polygonal frame body, each center capsule is a hemispherical capsule, each center capsule is arranged in the corresponding containing groove, the bottom of each center capsule is connected with total connecting sheet, the outer capsule wall of each center capsule is gap arranged between the inner wall of polygonal frame body, each center capsule is filled with capsule type asphalt mixture, total connecting sheet is a flexible sheet, each polygonal frame body includes a plurality of support plates, the plurality of support plates are uniformly distributed around center capsule along the circumferential direction of center capsule, and a tearing and shearing gap is formed between the end of the adjacent two support plates in the same polygonal frame body and the outer side wall of total connecting sheet.

[0010] As a preferred solution: a plurality of tear slots are processed on the side wall of the total connecting sheet in each accommodating groove, the tear slots are arranged one by one with the tear gap, one end of each tear slot is communicated with the corresponding tear gap, and the other end of each tear slot abuts against the outer wall of the center capsule.

[0011] As a preferred solution: when one of the tear slots is in a torn state, the corresponding center capsule is in a use state of releasing the capsule asphalt mixture.

[0012] As a preferred solution: the capsule asphalt mixture comprises asphalt binder and a plurality of double-layer composite capsules, the plurality of double-layer composite capsules are in the asphalt binder, each double-layer composite capsule comprises an outer capsule shell, an inner capsule shell, an outer capsule core and an inner capsule core, the outer capsule shell and the inner capsule shell are both capsule-shaped shells, the outer capsule shell and the inner capsule shell are coaxially arranged from outside to inside, the outer capsule core is arranged between the inner wall of the outer capsule shell and the outer wall of the inner capsule shell, and the inner capsule core is arranged in the inner capsule shell.

[0013] The beneficial effects of the utility model lie in:

[0014] I. The multi-position fracture type self-cutting filling structure for repairing asphalt pavement cracks in the utility model can shorten the construction period and reduce the repair structure form of the pavement wound, when the multi-position fracture type self-cutting filling structure is a double-capsule structure monomer, the filling process of the smaller area or larger width cracks on the asphalt pavement can be realized through the cooperation between the bottom sheet, the two polygonal frame bodies and the two center capsules, the double-capsule structure monomer can be adapted to multi-directional self-splitting cutting or tearing, which is beneficial to realize the process of releasing the capsule asphalt mixture based on the double sides of the bottom sheet, reduce the excavation area of the repair wound and unify the repair treatment mode of small area or point cracks.

[0015] II. When the multi-position fracture type self-cuting filling structure is a multi-capsule sheet structure in the utility model, the cooperation between the total connecting sheet, the 2N polygonal frame bodies and the 2N center capsules can realize the large-area pavement repair process, which is beneficial to shorten the repair period, improve the unified and standardized repair effect, adapt to the shape cutting according to the specific design requirements, construction requirements and different depth trends of cracks, save the repair cost, reduce the repair difficulty, unify the repair treatment mode of deep cracks in the large-area wound and can be used in the local area or all-around treatment process of the asphalt pavement. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a top view structural schematic view when the multi-position fracture type self-cutting filling structure is a double-capsule structure monomer.

[0017] Figure 2 It is a top view structural schematic view when the multi-position fracture type self-cutting filling structure is a double-capsule structure monomer. Figure 1Enlarged structural schematic view of the middle A;

[0018] Figure 3 Side structural schematic view of the double-capsule structure monomer;

[0019] Figure 4 Top structural schematic view of the multi-capsule sheet structure when the multi-position broken self-cutting filling structure is the multi-capsule sheet structure;

[0020] Figure 5 Side structural schematic view of the multi-capsule sheet structure in a use state;

[0021] Figure 6 Side structural schematic view of the multi-capsule sheet structure in another use state;

[0022] Figure 7 Three-dimensional structural schematic view of the double-layer composite capsule;

[0023] Figure 8 Sectional structural schematic view of the double-layer composite capsule along its radial direction.

[0024] In the figure: 1 - bottom sheet; 2 - polygonal frame; 2-1 - support plate; 3 - central capsule; 4 - containing groove; 5 - long hole; 6 - capsule asphalt mixture; 6-1 - double-layer composite capsule; 6-1-1 - outer capsule shell; 6-1-2 - inner capsule shell; 6-1-3 - outer capsule core; 6-1-4 - inner capsule core; 11 - cutting fracture indentation; 12 - shearing gap; 13 - asphalt pavement; 21 - total connecting sheet; 25 - tearing gap; 26 - tearing groove; 27 - crack. DETAILED DESCRIPTION

[0025] The embodiments of the present application will be described in detail with specific examples. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the specification. The present application can also be implemented or applied in other different embodiments, and each detail in the specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present application.

[0026] Embodiment 1: combined with Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 and Figure 8To illustrate the embodiment, the multi-bit broken self-cutting filling structure of the embodiment is a double-capsule structure monomer, which comprises a bottom sheet 1, two polygonal frame bodies 2 and two center capsule receiving bodies 3. The bottom sheet 1 is horizontally arranged, and the two polygonal frame bodies 2 are arranged on the top surface and the bottom surface of the bottom sheet 1 respectively. A containing groove 4 is formed between the inner wall of each polygonal frame body 2 and the bottom sheet 1. One center capsule receiving body 3 is arranged in each containing groove 4. Each center capsule receiving body 3 is arranged on the bottom sheet 1, and the outer capsule wall of each center capsule receiving body 3 is arranged in a gap with the inner wall of the polygonal frame body 2. Each center capsule receiving body 3 is filled with a capsule type asphalt mixture 6. A plurality of cutting and breaking notches 11 are processed on the bottom sheet 1. One end of each cutting and breaking notch 11 is connected with the edge of the bottom sheet 1, and the other end of each cutting and breaking notch 11 abuts against the outer wall of the center capsule receiving body 3.

[0027] In the embodiment, the optimal form of the polygonal frame body 2 is a hexagon, which is stable and has multiple release directions. Each long hole 5 is a release direction, which is beneficial to improve the uniformity of the paving of the released capsule type asphalt mixture 6. In addition, the polygonal frame body 2 can also be made into a triangle, a quadrilateral or an octagon according to specific design needs and actual requirements.

[0028] In the embodiment, a plurality of cutting and breaking notches 11 are processed on the bottom sheet 1 of the double-capsule structure monomer. The cutting and breaking notches 11 provide positions for cutting or tearing the bottom sheet 1. Meanwhile, the cooperation of the plurality of cutting and breaking notches 11 on the bottom sheet 1 can realize the process of tearing at a single position or multiple multi-angle positions on demand. When the bottom sheet 1 is cut or torn through the cutting and breaking notches 11, the cutting and breaking notches 11 being cut or torn directly causes the synchronous breakage of the two center capsule receiving bodies 3, thereby realizing the purpose of bidirectional release of the capsule type asphalt mixture 6 along the two sides of the bottom sheet 1, improving the penetration range of the rapidly released capsule type asphalt mixture 6, improving the uniform repair quality, and being suitable for repairing cracks 27 with large depth and width in the asphalt pavement 13.

[0029] In combination with Figure 6 As shown, the double-capsule structure monomer can not only be used horizontally, but also be filled according to the cracking trend of the cracks 27. When the cracks 27 are inclined cracks, the double-capsule structure monomer can realize inclined filling. When the double-capsule structure monomer is inclined, it can penetrate into the cracks 27 of the asphalt pavement 13. When the center capsule receiving bodies 3 are broken, the capsule type asphalt mixture 6 released from the center capsule receiving bodies 3 realizes the function of specific filling. The arrangement position of the double-capsule structure monomer is beneficial to improve the repair quality of the capsule type asphalt mixture 6 to the cracks 27, depressions or other forms of pavement damage. The repair quality is durable and can realize local small-cost standard repair, which is beneficial to improve the continuous and durable service life of the asphalt pavement 13.

[0030] The bottom sheet 1, the polygonal frame 2 and the center capsule 3 in the embodiment are all made of degradable materials, wherein the polygonal frame 2 is made of existing hard degradable materials, and the bottom sheet 1 and the center capsule 3 are made of existing flexible degradable materials, specifically polylactic acid, polybutylene terephthalate, polybutylene succinate or other related materials, which are low in cost and easy to popularize and promote.

[0031] Further, the bottom sheet 1 and the center capsule 3 can also be made of degradable mulch materials, and the capsule asphalt mixture 6 is filled between the bottom sheet 1 and the center capsule 3 by filling and pressing; the center capsule 3 can also be heated and melted to release the capsule asphalt mixture 6.

[0032] Specific implementation method two: the embodiment is a further limitation of the specific implementation method one, the bottom sheet 1 is a polygonal sheet, the shape of the bottom sheet 1 is matched with the shape of the polygonal frame 2, each polygonal frame 2 includes a plurality of support plates 2-1, the plurality of support plates 2-1 are uniformly arranged along the circumferential edge of the bottom sheet 1, one support plate 2-1 is arranged at each edge of the bottom sheet 1, the bottom side of each support plate 2-1 is fixedly connected with the bottom sheet 1, and each end of each support plate 2-1 and the end of the adjacent support plate 2-1 form a shearing gap 12, and one cutting and breaking notch 11 is arranged in each shearing gap 12.

[0033] The thickness of the polygonal frame 2 in the embodiment is less than or equal to 5 mm, which is a small size form, and is beneficial to filling or laying in different structure forms and different sizes of cracks 27 or recesses in the asphalt pavement 13.

[0034] The double-capsule structure monomer in the embodiment can also be made in different specifications, and the connection mode and relative size ratio of the bottom sheet 1, the polygonal frame 2 and the center capsule 3 in different specifications are consistent, so as to ensure that the bottom sheet 1, the polygonal frame 2 and the center capsule 3 provide a corresponding area of release and paving structure when they cooperate with each other to form a center capsule 3 with different volume.

[0035] Specific implementation method three: the embodiment is a further limitation of the specific implementation method one or two, and one long hole 5 is formed in each support plate 2-1 along the thickness direction of the plate, the length direction of each long hole 5 is the same as the length direction of the support plate 2-1, and each long hole 5 is in communication with the corresponding accommodation groove 4.

[0036] In the embodiment, the capsule asphalt mixture 6 is released and uniformly flows out through the communication relationship between the long hole 5 and the accommodation groove 4, which is beneficial to improving the repair quality of uniform amount.

[0037] Further, the capsule asphalt mixture 6 in the center capsule 3 can repair the cracks 27, depressions or other forms of road injuries of the asphalt pavement 13. When the center capsule 3 is broken, a part of the capsule asphalt mixture 6 released by the center capsule 3 is in the polygonal frame 2, and the other part of the capsule asphalt mixture 6 flows through the long hole 5 to fill into the inner side wall of the cracks 27 after being outside the double-capsule structure monomer, which is beneficial to improve the uniform repair of the capsule asphalt mixture 6 on the cracks 27, depressions or other forms of road injuries, and the repair effect is durable and can realize local small-cost standard repair, which is beneficial to improve the continuous and durable service life of the asphalt pavement 13. At the same time, the construction personnel can cut the double-capsule structure monomer in multiple directions by cutting the broken indentation 11, and the corresponding part of the asphalt pavement 13 is repaired by the capsule asphalt mixture 6 released by the center capsule 3, which is convenient to operate and beneficial to reduce the repair cost.

[0038] Specific implementation method four: the center capsule 3 is a semi-spherical capsule in the further limitation of the specific implementation method one, two or three. The shape of the semi-spherical capsule is beneficial to improve the contact area of the center capsule 3 and the bottom sheet 1, and avoid the displacement of the center capsule 3 before release to affect the repair effect.

[0039] Specific implementation method five: the bottom sheet 1 is a flexible sheet in the further limitation of the specific implementation method one, two, three or four. The bottom sheet 1 is specifically made of degradable plastic or other flexible materials used in the process of paving the road. It is beneficial to improve the adaptive fitting performance in the process of paving different shapes or different depth cracks 27. In addition, the flexible sheet can be cut while fitting the cracks 27 or depression part of the asphalt pavement 13, which is convenient for cutting.

[0040] Specific implementation method six: in combination with Figure 4 , Figure 5 , Figure 7 and Figure 8In the embodiment, the multi-bit broken self-cutting filling structure is a multi-capsule tablet structure. The multi-capsule tablet structure comprises a total connecting sheet 21, 2N polygonal frame bodies 2, and 2N central capsule receiving bodies 3. The total connecting sheet 21 is provided with N polygonal frame bodies 2 on each side. An accommodation groove 4 is formed between the inner wall of each polygonal frame body 2 and the total connecting sheet 21. One central capsule receiving body 3 is provided in each polygonal frame body 2. Each central capsule receiving body 3 is a hemispherical capsule. Each central capsule receiving body 3 is arranged in the corresponding accommodation groove 4. The bottom of each central capsule receiving body 3 is connected to the total connecting sheet 21. The outer capsule wall of each central capsule receiving body 3 is arranged in a gap with the inner wall of the polygonal frame body 2. Each central capsule receiving body 3 is filled with a capsule type asphalt mixture 6. The total connecting sheet 21 is a flexible sheet. Each polygonal frame body 2 comprises a plurality of support plates 2-1. The plurality of support plates 2-1 are uniformly distributed around the central capsule receiving body 3 along the circumferential direction of the central capsule receiving body 3. A tear gap 25 is formed between the end of each adjacent support plate 2-1 in the same polygonal frame body 2 and the outer side wall of the total connecting sheet 21.

[0041] In the embodiment, the multi-capsule tablet structure is manufactured by sharing one sheet structure as a total support structure, that is, forming the total connecting sheet 21. The total connecting sheet 21 saves the processing procedure. When the total connecting sheet 21 is torn, the 2N central capsule receiving bodies 3 can release a large amount of capsule type asphalt mixture 6, which is convenient for repairing cracks 27 with a large width in the asphalt pavement 13.

[0042] In the embodiment, the optimal form of each polygonal frame body 2 is a hexagon, which is stable and has multiple release directions. Each long hole 5 is a release direction, which is beneficial to improve the uniformity of the spread of the released capsule type asphalt mixture 6. In addition, the polygonal frame body 2 can also be triangular, quadrangular, or octagonal according to specific design needs and actual requirements.

[0043] Further, the capsule type asphalt mixture 6 in the central capsule receiving body 3 can repair cracks 27, depressions, or other forms of pavement damage in the asphalt pavement 13. The polygonal frame body 2 and the central capsule receiving body 3 are arranged one by one. When the central capsule receiving body 3 is broken, a part of the capsule type asphalt mixture 6 released by each central capsule receiving body 3 is in the corresponding polygonal frame body 2, and another part of the capsule type asphalt mixture 6 flows through each long hole 5 and is filled to the opposite inner walls of the cracks 27 outside the multi-capsule tablet structure. This is beneficial to improve the uniformity of the capsule type asphalt mixture 6 in repairing cracks 27, depressions, or other forms of pavement damage. The repair effect is durable and can achieve local small-cost standard repair, which is beneficial to improve the continuous and durable service life of the asphalt pavement 13.

[0044] The construction personnel can cut or tear the multi-capsule sheet structure through the tear gap 25 to form a corresponding size to repair the corresponding position on the asphalt pavement 13, which is convenient to operate and reduces the repair cost.

[0045] Specific embodiment seven: the total connecting piece 21 in each accommodating groove 4 has a plurality of tear grooves 26 on the side wall, and the tear grooves 26 are arranged one by one with the tear gap 25. One end of each tear groove 26 is in communication with the corresponding tear gap 25, and the other end of each tear groove 26 abuts against the outer wall of the center capsule 3. The processing method of the tear groove 26 is the same as that of the existing easy-to-tear strip.

[0046] Further, when the construction personnel uses external force to press or directly cuts or tears along the tear groove 26, the capsule type asphalt mixture 6 can be released through the center capsule 3 to achieve the effect of strengthening the repair of the crack 27 of the asphalt pavement 13.

[0047] Specific embodiment eight: the embodiment is further limited to the seventh embodiment. When one of the tear grooves 26 is in a torn state, the corresponding center capsule 3 of the tear groove 26 is in a state of releasing the capsule type asphalt mixture 6. When the construction personnel divides the multi-capsule sheet structure through the tear groove 26, the broken center capsule 3 releases the capsule type asphalt mixture 6 in two directions, and the released capsule type asphalt mixture 6 flows into and penetrates the corresponding position of the asphalt pavement 13 to achieve local repair. At the same time, the area of the released capsule type asphalt mixture 6 is wide, which can also repair the crack 27 with a large width of the asphalt pavement 13.

[0048] Specific implementation nine: the specific implementation one, two, three, four, five, six, seven or eight is further limited, the capsule type asphalt mixture 6 includes the asphalt binder agent and a plurality of double-layer composite capsules 6-1, a plurality of double-layer composite capsules 6-1 are in the asphalt binder agent, each double-layer composite capsule 6-1 includes an outer shell 6-1-1, an inner shell 6-1-2, an outer capsule core 6-1-3 and an inner capsule core 6-1-4, the outer shell 6-1-1 and the inner shell 6-1-2 are both capsule-shaped shells, the outer shell 6-1-1 and the inner shell 6-1-2 are coaxially arranged from outside to inside, the outer capsule core 6-1-3 is arranged between the inner wall of the outer shell 6-1-1 and the outer wall of the inner shell 6-1-2, and the inner capsule core 6-1-4 is arranged in the inner shell 6-1-2. The inner capsule core 6-1-4 is a core made of energy storage phase change material, the double-layer composite capsule 6-1 has reasonable and simple structure, the phase change material used in the inner capsule core 6-1-4 is the existing phase change material, and the structure of the double-layer composite capsule 6-1 can effectively improve the road diseases such as rut, deformation and freeze cracking under high and low temperature conditions, realize durable repair mode, and avoid secondary cracking.

[0049] The plurality of double-layer composite capsules 6-1 in the capsule type asphalt mixture 6 in the embodiment have stability in the asphalt, and can improve the repair effect of the crack 27 when combined with the asphalt binder agent.

[0050] The inner shell 6-1-2 in the embodiment is an inner phase change microcapsule shell structure, specifically a double polymer formed by mixing polyvinyl alcohol and methoxylated hexamethylol melamine resin, and carbon nanotubes are wound with the double polymer and deposited in the inner shell wall. The double polymer as the inner shell material can improve the strength and chemical stability of the phase change microcapsule; the carbon nanotubes as the photothermal material can convert light energy into heat energy to improve the energy storage effect of the phase change material, and the carbon nanotubes can further improve the energy storage of the phase change material under the action of external electric field or magnetic field.

[0051] Further, the inner capsule core 6-1-4 is an inner phase change microcapsule core structure, specifically a core material composed of n-octanoic acid and tetradecane, which changes from liquid to solid at low temperature, releases heat, delays the asphalt cooling rate of the asphalt pavement 13, adjusts the low-temperature environment of the road engineering, and improves the low-temperature crack resistance of the asphalt binder.

[0052] The outer shell 6-1-1 is an outer self-repairing microcapsule shell structure, specifically a double polymer formed by mixing polyvinyl alcohol and methyl etherified hexamethylol melamine resin, and carbon nanotubes are wound around the double polymer and deposited in the shell wall.

[0053] Further, the outer capsule core body 6-1-3 is an annular structure and is also an outer microcapsule core structure, clamped between the outer shell 6-1-1 and the inner shell 6-1-2, and the outer capsule core body 6-1-3 is an outer self-repairing microcapsule core structure, specifically a core material composed of bio-oil and carbon nanotubes. The carbon nanotubes increase the filling effect of bio-oil on the cracks 27 and pores of the asphalt pavement 13, improve the permeability and repairability of bio-oil, and improve the self-healing performance of the asphalt material.

[0054] When the multi-point fracture type self-cutting filling structure is a double-capsule structure monomer, the working principle of the multi-point fracture type self-cutting filling structure is as follows:

[0055] The double-capsule structure monomer is arranged on the asphalt pavement 13 at a local position that needs to be repaired. The bottom sheet 1 and the polygonal frame body 2 cooperate with each other to support the bottom and the circumferential direction of the center capsule 3, adapt to the laying of the center capsule 3 and the release process of the capsule type asphalt mixture 6, and realize the repair effect of uniform paving after the two center capsules 3 are broken and release the capsule type asphalt mixture 6 by being torn or cut by the cutting fracture notch 11. The release direction is the bilateral release of the bottom sheet 1, which is more suitable for completing the synchronous repair process of the bilateral inner wall in the point or crack 27 on the asphalt pavement 13, and is beneficial to the standardized treatment of small gaps, pits or other point repairs.

[0056] When the multi-point fracture type self-cutting filling structure is a multi-capsule sheet structure, the working principle of the multi-point fracture type self-cutting filling structure is as follows:

[0057] According to the repair area of the asphalt pavement 13, a multi-capsule sheet structure with a corresponding shape and area is determined, and the multi-capsule sheet structure is laid at the repair area of the asphalt pavement 13. The plurality of central capsules 3 on both sides of the total connecting sheet 21 in the multi-capsule sheet structure are cut or torn open by cutting the fracture notch 11 to achieve the process of releasing the capsule asphalt mixture 6, thereby achieving the synchronous repair process of the inner walls on both sides in the crack 27 in the repair area of the asphalt pavement 13, which is beneficial to the standardized treatment of the crack 27 with a large crack width and a long trend.

Claims

1. A multi-position breakaway self-cleaving filler structure for asphalt pavement crack repair, characterized by: The application discloses a multi-position broken self-cutting filling structure which is a double-capsule structure monomer.

2. The multi-position breakaway self-caning populating structure of claim 1, wherein: The bottom sheet (1) is a polygonal sheet body, and the shape of the bottom sheet (1) is matched with the shape of the polygonal frame body (2); each polygonal frame body (2) comprises a plurality of support plates (2-1), the plurality of support plates (2-1) are uniformly arranged along the circumferential edges of the bottom sheet (1), one support plate (2-1) is arranged at each edge of the bottom sheet (1), the bottom side of each support plate (2-1) is fixedly connected with the bottom sheet (1), and a shearing gap (12) is formed between each end of each support plate (2-1) and the end of the adjacent support plate (2-1); and each shearing gap (12) is correspondingly provided with one cutting and breaking notch (11).

3. The multi-position breakaway self-caning populating structure of claim 2, wherein: Each support plate (2-1) is provided with one long hole (5) along the plate thickness direction of the support plate (2-1), the length direction of each long hole (5) is the same as the length direction of the support plate (2-1), and each long hole (5) is arranged in communication with the corresponding accommodating groove (4).

4. The multi-position breakaway self-caning populating structure of claim 1, wherein: The center capsule (3) is a semispherical capsule.

5. The multi-position breakaway self-caning poplin structure of claim 1, wherein: The bottom sheet (1) is a flexible sheet body.

6. A multi-position breakaway self-cleaving fill structure for asphalt pavement crack repair, characterized by: The multi-position broken self-cutting filling structure is a multi-capsule tablet structure, which comprises a total connecting sheet (21), 2N polygonal frame bodies (2) and 2N central capsule receiving bodies (3). The total connecting sheet (21) is provided with N polygonal frame bodies (2) on both sides, and a containing groove (4) is formed between the inner wall of each polygonal frame body (2) and the total connecting sheet (21). One central capsule receiving body (3) is arranged in each polygonal frame body (2). Each central capsule receiving body (3) is a hemispherical capsule body. Each central capsule receiving body (3) is arranged in the corresponding containing groove (4), and the bottom of each central capsule receiving body (3) is connected with the total connecting sheet (21). The outer capsule wall of each central capsule receiving body (3) is arranged in a gap with the inner wall of the polygonal frame body (2). Each central capsule receiving body (3) is filled with a capsule type asphalt mixture (6). The total connecting sheet (21) is a flexible sheet. Each polygonal frame body (2) comprises a plurality of support plates (2-1), which are uniformly distributed around the central capsule receiving body (3) along the circumferential direction of the central capsule receiving body (3). A tear gap (25) is formed between the end of the adjacent two support plates (2-1) in the same polygonal frame body (2) and the outer side wall of the total connecting sheet (21).

7. The multi-position breakaway self-caning populating structure of claim 6, wherein: A plurality of tear grooves (26) are formed on the side wall of the total connecting sheet (21) in each containing groove (4). The tear grooves (26) are arranged one by one corresponding to the tear gaps (25). One end of each tear groove (26) communicates with the corresponding tear gap (25), and the other end of each tear groove (26) abuts against the outer wall of the central capsule receiving body (3).

8. The multi-position breakaway self-caning populating structure of claim 7, wherein: When one of the tear grooves (26) is in a torn state, the corresponding central capsule receiving body (3) is in a state of releasing the capsule type asphalt mixture (6).

9. The multi-position breakaway self-caning fill structure of claim 6, 7, or 8, wherein: The capsule type asphalt mixture (6) comprises asphalt binder and a plurality of double-layer composite capsules (6-1). The plurality of double-layer composite capsules (6-1) are in the asphalt binder. Each double-layer composite capsule (6-1) comprises an outer capsule shell (6-1-1), an inner capsule shell (6-1-2), an outer capsule core (6-1-3) and an inner capsule core (6-1-4). The outer capsule shell (6-1-1) and the inner capsule shell (6-1-2) are both capsule-shaped shells. The outer capsule shell (6-1-1) and the inner capsule shell (6-1-2) are coaxially arranged from outside to inside. The outer capsule core (6-1-3) is arranged between the inner wall of the outer capsule shell (6-1-1) and the outer wall of the inner capsule shell (6-1-2). The inner capsule core (6-1-4) is arranged in the inner capsule shell (6-1-2).

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