Municipal road crack repairing construction method

Abstract

The invention discloses a municipal road crack repairing construction method which comprises the following specific steps: S100, effectively cleaning and drying a road crack by using cleaning equipment, and detecting the width, depth and trend of the crack by using a crack detector; s200, selecting an interface processing mode according to the width of the crack so as to enhance the bonding force between the crack wall and the joint filling material; s300, a joint filling material is prepared according to the width and depth of the crack, and the crack is filled with the prepared joint filling material; s400, when the joint filling material is not completely cured, a layer of quartz sand is spread on the surface of the joint filling material, so that the surface roughness and the skid resistance are improved; after the joint filling material is completely solidified, a road sweeper is used for sweeping the repaired area and the periphery of the repaired area, and redundant quartz sand and sundries are removed; and S500, after repairing is completed, an obvious warning mark is arranged in the repairing area, and during maintenance, the repairing area is observed regularly, and if it is found that a crack appears again or the joint filling material falls off, the repairing area is repaired.

Description

Technical Field

[0001] The present invention relates to the technical field of road repair, in particular to a municipal road crack repair construction method. Background Art

[0002] Municipal roads, as crucial infrastructure for urban transportation, bear heavy daily vehicle loads and are subject to the effects of natural environmental factors (such as temperature fluctuations, rainwater erosion, and UV radiation). Over time, they are prone to cracks and other defects. Cracks not only affect the road's aesthetics but also cause rainwater to seep in, damaging the roadbed and leading to more serious problems like pavement subsidence and potholes. This shortens the road's service life and poses a threat to driving safety. Therefore, crack repair on municipal roads is essential.

[0003] The lifting mechanism that stirs cage connects with the said chute charging aperture, and the said chute charging aperture is set up on the said chute charging aperture, and the said chute charging aperture is set up on the said chute charging aperture.

[0004] When using the above patented solution to repair municipal roads, there is no need to manually vibrate the repair material in the cracks with a vibrating tool, which saves manpower. This quick repair device can stir and mix the repair material, and it is also convenient to vibrate the repair material. In the actual process of repairing municipal roads, not only is it necessary to mix the materials, but the cracks also need to be cleaned before repairing. When cleaning cracks, the existing technology often only uses a simple broom to sweep or blow air to sweep, which is difficult to thoroughly remove moisture, oil and fine particles in the cracks, resulting in insufficient adhesion between the caulking glue and the crack wall, and easy to fall off. Summary of the Invention

[0005] The purpose of the present invention is to provide a municipal road crack repair construction method, which aims to improve the existing method of cleaning road cracks by simple broom sweeping or blowing, which makes it difficult to thoroughly remove moisture, oil and fine particles in the cracks, resulting in insufficient adhesion between the caulking glue and the crack wall, and thus easily causing the problem of falling off.

[0006] The present invention is achieved in that: A municipal road crack repair construction method, the specific steps of the repair construction method are as follows: S100, using cleaning equipment to effectively clean and dry road cracks, and using a crack detector to detect the width, depth, and direction of the cracks; S200, selecting an interface treatment method according to the crack width to enhance the bonding force between the crack wall and the caulking material; S300, preparing a filling material according to the width and depth of the crack, and filling the crack with the prepared filling material; S400: Before the caulking material is completely cured, spread a layer of quartz sand on its surface to increase the surface roughness and anti-slip performance. After the caulking material is completely cured, use a road sweeper to clean the repair area and its surroundings to remove excess quartz sand and debris. S500. After the repair is completed, set up obvious warning signs in the repair area. During the maintenance period, regularly observe the repair area. If cracks reappear or caulking materials fall off, they should be dealt with in a timely manner.

[0007] Preferably, in step S100, the cleaning equipment includes a water tank, a water pump is provided on the side of the water tank, the water suction end of the water pump is connected to the water tank, the discharge end of the water pump is connected to a high-pressure water gun, the high-pressure water gun is provided with a hot air blower, the hot air blower and the water tank are electrically connected, and a movable base is installed on the bottom of the water tank for driving the flexible movement of the entire equipment.

[0008] Preferably, a handle is provided on one side of the water tank near the top, and a suction pipe and a drain pipe are provided on the side of the water tank aligned with the bottom of its inner cavity, and a throttle valve is provided on the drain pipe; a control box is provided on the bottom of the water tank, a plurality of connecting slots are provided on the side of the control box, and a plug-in slot is provided at the bottom end of the control box, and a plurality of top screws are provided on the side of the control box aligned with the plug-in slot for fixing the mobile base; a charging slot is provided on the side of the control box for charging the battery inside the control box.

[0009] Preferably, the water pump end is provided with two external tubes, and the end of the external tube is provided with an adapter cap, and the two external tubes serve as the water suction end and the water discharge end of the water pump respectively, and the external tube serving as the water suction end of the water pump is connected to the water suction pipe; the water pump is provided with a plurality of fixing feet at one end that is attached to the control box, and the fixing feet are provided with fixing holes, and the water pump is fixed to the control box by bolts passing through the fixing holes; a first communication line is provided on the side of the water pump, and a first communication plug is provided at the end of the first communication line, and the first communication plug is plugged into the control box.

[0010] Preferably, the high-pressure water gun is provided with an annular groove, and a handle is provided at the bottom of the high-pressure water gun, a switch is provided on the handle, a nozzle is provided at the output end of the high-pressure water gun, a spring tube is provided at the bottom of the handle, a connector is provided at the bottom of the spring tube, and the connector is connected to the drainage end of the water pump.

[0011] Preferably, the hot air blower is provided with a hot air pipe in the direction of the output end of the high-pressure water gun, the outlet of the hot air pipe is arranged at the bottom of the nozzle, a hair dryer is provided on the inside of the hot air blower, and a heating wire is provided along the outlet of the hair dryer on the inside of the hot air blower; a filter plate is provided on the suction end of the hair dryer on the upper side of the hot air blower, an adapter ring is provided on the filter plate, and the adapter ring is threadedly connected to the hot air blower; a second connecting line is provided on the side of the hot air blower, a second connecting plug is provided at the end of the second connecting line, and the second connecting plug is electrically connected to the water tank, a sleeve is provided at the bottom of the hot air blower, the sleeve is sleeved on the inner side of the ring groove, and a tightening knob is provided on the side of the sleeve.

[0012] Preferably, universal wheels are provided at the corners of the bottom surface of the movable base, and a plug-in plate is provided at the top of the movable base. The plug-in plate is inserted into the plug-in slot, and the top screw is pressed tightly on the plug-in plate.

[0013] Preferably, it further comprises a cover, wherein a limiting insert ring is provided at the bottom end of the cover, the limiting insert ring is inserted into the top opening of the water tank, and a handle is provided on the upper surface of the cover, and the handle is used for disassembly, assembly and use of the cover.

[0014] Preferably, in step S200, when the crack cross section is processed, when the width is less than 3 mm, epoxy resin emulsion is evenly applied to the crack surface and the surrounding 2-3 cm area with a coating thickness of 0.1-0.2 mm; when the width is 3-5 mm, acrylic emulsion and cement are mixed in a ratio of 1:2-1:3 to prepare an interface agent, which is applied to the crack and the surrounding 3-5 cm area with a thickness of 0.2-0.3 mm; when the width is greater than 5 mm, a glass fiber mesh cloth with a width 5-10 cm wider than the crack is first laid at the bottom of the crack, and then an interface enhancer prepared by polyurethane emulsion, silane coupling agent and cement in a ratio of 1:0.1-1:0.2:2-3 is poured until it is flush with the road surface.

[0015] Preferably, in step S300, when preparing the filling material, the raw materials include, by weight, 40-50 parts of modified asphalt, 10-15 parts of rubber powder, 0.5-1 part of graphene, 2-3 parts of nano-silica, 5-8 parts of plasticizer, and 3-5 parts of stabilizer; the modified asphalt is heated to 160-180°C, the rubber powder is added and stirred, and then kept warm for 30-40 minutes, and then the remaining raw materials are added and stirred for 20-30 minutes; the filling material is heated to 140-160°C, and injected from one end of the crack using a caulking machine, with the surface 1-2 mm higher than the road surface. Cracks with a width greater than 5 mm are filled twice, the first filling to a depth of 2 / 3, and the second filling after an interval of 10-15 minutes.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention uses a high-pressure water gun to flush road cracks and uses a hot air blower to dry the cracks. This can effectively remove debris and moisture on the surface and inside of the cracks, provide a good foundation for subsequent interface treatment and filling, and improve the adhesion between the repair material and the crack wall.

[0017] 2. The present invention can better adapt to the repair needs of cracks of different widths by selecting different interface treatment materials and methods according to the width of the crack, enhance the bonding performance of the interface, prevent moisture and debris from penetrating into the bottom of the crack, and thus extend the service life of the repair effect.

[0018] 3. The present invention adopts a composite of modified asphalt, rubber powder, graphene, nano-silica and other materials to prepare the filling material, which has good high temperature resistance, low temperature resistance, aging resistance and bonding properties, can adapt to the complex use environment of municipal roads, and effectively improve the quality and durability of crack repair.

[0019] 3. The present invention increases the surface roughness and anti-skid performance by spreading quartz sand on the surface of the filling material, thereby improving the coordination between the repair area and the original road surface; reasonable maintenance measures ensure that the filling material can be fully cured, avoid early damage, and further ensure the repair effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a flowchart of the construction method of the present invention; Figure 2 It is a schematic structural diagram of the cleaning device of the present invention; Figure 3 It is a schematic structural diagram of the water storage tank of the present invention at the front oblique downward angle; Figure 4 This is a schematic structural diagram of the water storage tank of the present invention at the rear end obliquely upward viewing angle; Figure 5 It is a structural schematic diagram of the water pump of the present invention; Figure 6It is a structural schematic diagram of the high-pressure water gun of the present invention; Figure 7 It is a structural schematic diagram of the hot air blower of the present invention; Figure 8 It is a structural schematic diagram of the mobile base of the present invention; Figure 9 It is a structural schematic diagram of the sealing cover of the present invention.

[0021] Figure: 1. Water tank; 11. Handle; 12. Suction pipe; 13. Control box; 14. Jackscrew; 15. Connector slot; 16. Charging slot; 17. Drain pipe; 18. Throttle valve; 19. Connector slot; 2. Water pump; 21. External pipe; 22. Adapter cap; 23. Fixing foot; 24. Fixing hole; 25. First connecting line; 26. First connecting plug; 3. High-pressure water gun; 31. Ring groove; 32. Handle; 33. Switch; 34. Nozzle; 35. Spring tube; 36. Connector; 4. Hot air blower; 41. Hot air pipe; 42. Hair dryer; 43. Filter plate; 44. Adapter ring; 45. Second connection line; 46. Second connection plug; 47. Ring; 48. Tightening knob; 5. Mobile base; 51. Insert plate; 52. Universal wheel; 6. Cover; 61. Handle; 62. Limiting ring. DETAILED DESCRIPTION

[0022] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0023] The following is a further description with reference to the accompanying drawings and specific embodiments: Example 1 like Figure 1 As shown, a municipal road crack repair construction method, the specific steps of the repair construction method are as follows: S100. Use cleaning equipment to effectively clean and dry road cracks. Use a high-pressure water gun 3 to flush the cracks and the road surface within 5 cm around them to remove surface debris. Then, use a hot air blower 4 to blow hot air into the cracks to remove internal debris and moisture. Then, use a crack detector to detect the cracks, measure the width, depth, and direction of the cracks, and record the specific location and shape of the cracks.

[0024] S200. Select the interface treatment method according to the width of the crack. When the width is less than 3mm, evenly apply epoxy resin emulsion to the crack surface and the surrounding 2cm area with a thickness of 0.1mm. When the width is 3mm, mix acrylic emulsion and cement in a ratio of 1:2 to make an interface agent, and apply it to the crack and the surrounding 3cm area with a thickness of 0.2mm. When the width is greater than 5mm, first lay a glass fiber mesh cloth 5cm wider than the crack at the bottom of the crack, and then pour an interface enhancer prepared with polyurethane emulsion, silane coupling agent and cement in a ratio of 1:0.11:0.2:2 until it is flush with the road surface to enhance the adhesion between the crack wall and the filling material.

[0025] S300. Prepare caulking material based on the width and depth of the cracks and fill the cracks with the prepared caulking material. The raw materials, by weight, include 40 parts modified asphalt, 10 parts rubber powder, 0.5 parts graphene, 2 parts nano-silica, 5 parts plasticizer, and 3 parts stabilizer. Heat the modified asphalt to 160°C, add the rubber powder, stir, and keep warm for 30 minutes. Then add the remaining raw materials and stir for 20 minutes. Heat the caulking material to 140°C and use a caulking machine to inject it from one end of the crack, with the surface 1mm above the road surface. For cracks wider than 5mm, heat the prepared caulking material to 140°C and use a caulking machine to slowly inject it into the crack, starting from one end and gradually moving toward the other end, ensuring that the caulking material fills the crack and that the surface is slightly above the road surface by 1mm. For cracks wider than 5mm, the filling process can be repeated in two steps: the first step is to fill to 2 / 3 of the crack depth. After the crack cools and solidifies for 10 minutes, the second step is repeated.

[0026] S400: When the caulking material is not yet fully cured and the temperature of the caulking material drops to 80°C, spread quartz sand with a particle size of 0.5mm at a rate of 5kg / m² to increase the surface roughness and anti-slip properties. After the caulking material is fully cured, use a road sweeper to clean the repair area and its surroundings to remove excess quartz sand and debris. S500. After the repair is completed, set up obvious warning signs in the repair area and prohibit vehicles and pedestrians from entering the area within 24 hours. During the maintenance period, regularly observe the repair area. If cracks reappear or caulking materials fall off, they should be dealt with in a timely manner.

[0027] Example 2 like Figure 1 As shown, a municipal road crack repair construction method, the specific steps of the repair construction method are as follows: S100. Use cleaning equipment to effectively clean and dry road cracks. Use a high-pressure water gun 3 to flush the cracks and the road surface within a 10 cm range around them to remove surface debris. Then, use a hot air blower 4 to blow hot air into the cracks to remove internal debris and moisture. Then, use a crack detector to detect the cracks, measure the width, depth, and direction of the cracks, and record the specific location and shape of the cracks.

[0028] S200. Select the interface treatment method according to the width of the crack. When the width is less than 3mm, evenly apply epoxy resin emulsion to the crack surface and the surrounding 3cm area with a thickness of 0.2mm. When the width is 5mm, mix acrylic emulsion and cement in a ratio of 1:3 to make an interface agent, and apply it to the crack and the surrounding 5cm area with a thickness of 0.3mm. When the width is greater than 5mm, first lay a glass fiber mesh cloth with a width 10cm wider than the crack at the bottom of the crack, and then pour an interface enhancer prepared with polyurethane emulsion, silane coupling agent and cement in a ratio of 1:1:0.2:3 until it is flush with the road surface to enhance the adhesion between the crack wall and the filling material.

[0029] S300. Prepare caulking material based on the width and depth of the cracks and fill the cracks with the prepared caulking material. The raw materials, by weight, include 50 parts modified asphalt, 15 parts rubber powder, 1 part graphene, 3 parts nano-silica, 8 parts plasticizer, and 5 parts stabilizer. Heat the modified asphalt to 180°C, add the rubber powder, stir, and keep warm for 40 minutes. Then add the remaining raw materials and stir for 30 minutes. Heat the caulking material to 160°C and use a caulking machine to inject it from one end of the crack, with the surface 2mm above the road surface. For cracks wider than 5mm, heat the prepared caulking material to 160°C and use a caulking machine to slowly inject it into the crack, starting from one end and gradually moving toward the other end, ensuring that the caulking material fills the crack and that the surface is slightly above the road surface by 2mm. For cracks wider than 5mm, the filling process can be repeated in two steps: the first step is to fill to 2 / 3 of the crack depth. After the crack cools and solidifies for 15 minutes, the second step is repeated.

[0030] S400: When the caulking material has not yet fully solidified and the temperature of the caulking material drops to 100°C, spread quartz sand with a particle size of 1mm at a rate of 8kg / m² to increase the surface roughness and anti-slip properties. After the caulking material is fully solidified, use a road sweeper to clean the repair area and its surroundings to remove excess quartz sand and debris. S500. After the repair is completed, set up obvious warning signs in the repair area and prohibit vehicles and pedestrians from entering the area within 24 hours. During the maintenance period, regularly observe the repair area. If cracks reappear or caulking materials fall off, they should be dealt with in a timely manner.

[0031] Example 3 like Figure 2 As shown, a cleaning device for repairing cracks in municipal roads is provided, including a water tank 1. The water tank 1 is convenient for storing water resources, so that water can be used to clean cracks. A water pump 2 is provided on the side of the water tank 1. The water suction end of the water pump 2 is connected to the water tank 1, and the discharge end of the water pump 2 is connected to a high-pressure water gun 3. The water pump 2 pumps water into the high-pressure water gun 3, and the high-pressure water gun 3 sprays high-pressure water to flush the cracks in the road, ensuring that the cracks in the road can be cleaned. A hot air blower 4 is provided on the high-pressure water gun 3. The hot air blower 4 is electrically connected to the water tank 1, which facilitates the power supply of the hot air blower 4, thereby facilitating the hot air blower 4 to dry and clean the cracks in the road. A mobile base 5 is installed on the bottom of the water tank 1 to drive the flexible movement of the entire device, facilitating the flexible movement and use of the entire device.

[0032] like Figure 3 and Figure 4 As shown, a handle 11 is located on one side of the water tank 1, near the top. This handle facilitates the movement of the entire device to a desired location, facilitating its use. A suction pipe 12 and a drain pipe 17 are located on the side of the water tank 1, aligned with the bottom of its interior. The suction pipe 12 facilitates the pump 2's extraction of water from the tank 1. A throttle valve 18 is located on the drain pipe 17, controlling its opening and closing for ease of use. A control box 13 is located on the bottom of the water tank 1. This controls the operation of the entire device and houses a battery that provides power. Multiple communication slots 15 are located on the side of the control box 13, facilitating the connection of various devices to the water tank 1 and enabling the control of various components by the control box 13. A socket 19 is located at the bottom of the control box 13, facilitating the installation of the mobile base 5 and facilitating its flexible use. A plurality of top screws 14 are provided on the side of the control box 13 aligned with the insertion slots 19 for fixing the mobile base 5 ; a charging slot 16 is provided on the side of the control box 13 for charging the battery inside the control box 13 .

[0033] like Figure 5As shown, the water pump 2 is equipped with two external pipes 21 at its ends, each with an adapter cap 22. These pipes 21 and adapter cap 22 facilitate connection between the water pump 2 and external piping, allowing the pump 2 to drive water flow. The two external pipes 21 serve as the suction and discharge ends of the water pump 2, respectively. The external pipes 21, acting as the suction end of the water pump 2, connect to the suction pipe 12, facilitating the pump 2's extraction of water from the water tank 1 and its delivery to the high-pressure water gun 3. The end of the water pump 2 that contacts the control box is equipped with multiple fixing legs 23, each with fixing holes 24. The water pump 2 is secured to the control box via bolts passing through these holes, ensuring a stable connection between the water pump 2 and the water tank 1, facilitating reliable operation. A first interconnection cable 25 is provided on the side of the water pump 2, with a first interconnection plug 26 at its end. This first interconnection plug 26 plugs into the control box, facilitating electrical connection between the water pump 2 and the water tank 1.

[0034] like Figure 6 As shown, the high-pressure water gun 3 is provided with an annular groove 31, which is convenient for installing the hot air blower 4 and facilitating the stable use of the hot air blower 4 in conjunction with the high-pressure water gun 3. A handle 32 is provided at the bottom of the high-pressure water gun 3, which is convenient for the staff to hold the high-pressure water gun 3 and facilitate the use of the high-pressure water gun 3. A switch 33 is provided on the handle 32, which is convenient for controlling the operation of the high-pressure water gun 3 and facilitates the use of the high-pressure water gun 3. A nozzle 34 is provided at the output end of the high-pressure water gun 3, which facilitates the spraying of high-pressure water flow. A spring tube 35 is provided at the bottom of the handle 32, which is convenient for the pipe to be extended by pulling. A connector 36 is provided at the bottom of the spring tube 35, which is connected to the drainage end of the water pump 2, facilitating the stable use of the high-pressure water gun 3 in conjunction with the water pump 2.

[0035] like Figure 7As shown, hot air blower 4 is equipped with a hot air pipe 41, facing the output end of high-pressure water gun 3. This pipe is used to blow hot air, thereby clearing cracks in the road. The outlet of hot air pipe 41 is located at the bottom of nozzle 34. This structure allows for simultaneous flushing and drying of cracks, as well as post-flushing drying. A blower 42 is located inside hot air blower 4, and a heating wire is located along the outlet of blower 42. Blower 42 facilitates airflow, and the heating wire heats the airflow, directing it toward the cracks. A filter plate 43 is located on the intake end of blower 42 on hot air blower 4. This filter plate 43 filters dust from the air and prevents it from being drawn into hot air blower 4. An adapter ring 44 is attached to filter plate 43, which is threadedly connected to hot air blower 4, facilitating assembly and disassembly. A second connecting line 45 is provided on the side of the hot air blower 4, and a second connecting plug 46 is provided at the end of the second connecting line 45. The second connecting plug 46 is electrically connected to the water storage tank 1, which facilitates the power supply and operation of the hot air blower 4, facilitates the operation of the hot air blower 4, and facilitates the drying and cleaning of cracks. A ring 47 is provided at the bottom of the hot air blower 4, which is sleeved on the inner side of the ring groove 31, and a tightening knob 48 is provided on the side of the ring 47. The tightening knob 48 is used to fix the position of the hot air blower 4 to ensure stable installation and use of the hot air blower 4.

[0036] like Figure 8 As shown, the bottom corners of the mobile base 5 are equipped with universal wheels 52. The universal wheels 52 are used to facilitate the mobile base 5 to assist the entire device in moving and facilitate the flexible use of the entire device. The top of the mobile base 5 is provided with an inserting plate 51, which is inserted into the plug-in slot 19. The top screw 14 is pressed against the inserting plate 51. This structure ensures the stable use of the mobile base 5.

[0037] Example 4 like Figure 2 As shown, a cleaning device for repairing cracks in municipal roads is provided, including a water tank 1. The water tank 1 is convenient for storing water resources, so that water can be used to clean cracks. A water pump 2 is provided on the side of the water tank 1. The water suction end of the water pump 2 is connected to the water tank 1, and the discharge end of the water pump 2 is connected to a high-pressure water gun 3. The water pump 2 pumps water into the high-pressure water gun 3, and the high-pressure water gun 3 sprays high-pressure water to flush the cracks in the road, ensuring that the cracks in the road can be cleaned. A hot air blower 4 is provided on the high-pressure water gun 3. The hot air blower 4 is electrically connected to the water tank 1, which facilitates the power supply of the hot air blower 4, thereby facilitating the hot air blower 4 to dry and clean the cracks in the road. A mobile base 5 is installed on the bottom of the water tank 1 to drive the flexible movement of the entire device, facilitating the flexible movement and use of the entire device.

[0038] like Figure 3 and Figure 4As shown, a handle 11 is located on one side of the water tank 1, near the top. This handle facilitates the movement of the entire device to a desired location, facilitating its use. A suction pipe 12 and a drain pipe 17 are located on the side of the water tank 1, aligned with the bottom of its interior. The suction pipe 12 facilitates the pump 2's extraction of water from the tank 1. A throttle valve 18 is located on the drain pipe 17, controlling its opening and closing for ease of use. A control box 13 is located on the bottom of the water tank 1. This controls the operation of the entire device and houses a battery that provides power. Multiple communication slots 15 are located on the side of the control box 13, facilitating the connection of various devices to the water tank 1 and enabling the control of various components by the control box 13. A socket 19 is located at the bottom of the control box 13, facilitating the installation of the mobile base 5 and facilitating its flexible use. A plurality of top screws 14 are provided on the side of the control box 13 aligned with the insertion slots 19 for fixing the mobile base 5 ; a charging slot 16 is provided on the side of the control box 13 for charging the battery inside the control box 13 .

[0039] like Figure 5 As shown, the water pump 2 is equipped with two external pipes 21 at its ends, each with an adapter cap 22. These pipes 21 and adapter cap 22 facilitate connection between the water pump 2 and external piping, allowing the pump 2 to drive water flow. The two external pipes 21 serve as the suction and discharge ends of the water pump 2, respectively. The external pipes 21, acting as the suction end of the water pump 2, connect to the suction pipe 12, facilitating the pump 2's extraction of water from the water tank 1 and its delivery to the high-pressure water gun 3. The end of the water pump 2 that contacts the control box is equipped with multiple fixing legs 23, each with fixing holes 24. The water pump 2 is secured to the control box via bolts passing through these holes, ensuring a stable connection between the water pump 2 and the water tank 1, facilitating reliable operation. A first interconnection cable 25 is provided on the side of the water pump 2, with a first interconnection plug 26 at its end. This first interconnection plug 26 plugs into the control box, facilitating electrical connection between the water pump 2 and the water tank 1.

[0040] like Figure 6As shown, the high-pressure water gun 3 is provided with an annular groove 31, which is convenient for installing the hot air blower 4 and facilitating the stable use of the hot air blower 4 in conjunction with the high-pressure water gun 3. A handle 32 is provided at the bottom of the high-pressure water gun 3, which is convenient for the staff to hold the high-pressure water gun 3 and facilitate the use of the high-pressure water gun 3. A switch 33 is provided on the handle 32, which is convenient for controlling the operation of the high-pressure water gun 3 and facilitates the use of the high-pressure water gun 3. A nozzle 34 is provided at the output end of the high-pressure water gun 3, which facilitates the spraying of high-pressure water flow. A spring tube 35 is provided at the bottom of the handle 32, which is convenient for the pipe to be extended by pulling. A connector 36 is provided at the bottom of the spring tube 35, which is connected to the drainage end of the water pump 2, facilitating the stable use of the high-pressure water gun 3 in conjunction with the water pump 2.

[0041] like Figure 7 As shown, hot air blower 4 is equipped with a hot air pipe 41, facing the output end of high-pressure water gun 3. This pipe is used to blow hot air, thereby clearing cracks in the road. The outlet of hot air pipe 41 is located at the bottom of nozzle 34. This structure allows for simultaneous flushing and drying of cracks, as well as post-flushing drying. A blower 42 is located inside hot air blower 4, and a heating wire is located along the outlet of blower 42. Blower 42 facilitates airflow, and the heating wire heats the airflow, directing it toward the cracks. A filter plate 43 is located on the intake end of blower 42 on hot air blower 4. This filter plate 43 filters dust from the air and prevents it from being drawn into hot air blower 4. An adapter ring 44 is attached to filter plate 43, which is threadedly connected to hot air blower 4, facilitating assembly and disassembly. A second connecting line 45 is provided on the side of the hot air blower 4, and a second connecting plug 46 is provided at the end of the second connecting line 45. The second connecting plug 46 is electrically connected to the water storage tank 1, which facilitates the power supply and operation of the hot air blower 4, facilitates the operation of the hot air blower 4, and facilitates the drying and cleaning of cracks. A ring 47 is provided at the bottom of the hot air blower 4, which is sleeved on the inner side of the ring groove 31, and a tightening knob 48 is provided on the side of the ring 47. The tightening knob 48 is used to fix the position of the hot air blower 4 to ensure stable installation and use of the hot air blower 4.

[0042] like Figure 8 As shown, the bottom corners of the mobile base 5 are equipped with universal wheels 52. The universal wheels 52 are used to facilitate the mobile base 5 to assist the entire device in moving and facilitate the flexible use of the entire device. The top of the mobile base 5 is provided with an inserting plate 51, which is inserted into the plug-in slot 19. The top screw 14 is pressed against the inserting plate 51. This structure ensures the stable use of the mobile base 5.

[0043] like Figure 9As shown, it also includes a cover 6, a limit ring 62 is provided at the bottom of the cover 6, and the limit ring 62 is inserted into the top opening of the water tank 1 to facilitate accurate installation and use of the cover 6. A handle 61 is provided on the upper surface of the cover 6 for disassembly and use of the cover 6.

[0044] Working principle: When in use, inject an appropriate amount of water into the cleaning equipment, then move it to the cracks that need to be cleaned, and use the high-pressure water pump 2 to drive the water flow into the high-pressure water gun 3. The staff holds the high-pressure water gun 3 and presses the switch 33 to make the high-pressure water gun 3 spray high-pressure water flow. The high-pressure water flow flushes the cracks, so that the cracks are flushed clean. At the same time, the hot air blower 4 is started and blows out enough hot air so that the hot air dries the cleaned cracks to ensure that the cracks are dry. After that, the cracks are treated, and the caulking material is prepared after the cracks are treated. The prepared caulking material is filled into the cracks on the road to repair the cracks. After the cracks are repaired, the cracks need to be maintained to ensure timely handling when abnormal cleaning occurs.

[0045] In summary, compared with the prior art, the present application uses a high-pressure water gun 3 to flush road cracks, and uses a hot air blower 4 to dry the cracks at the same time, which can effectively remove debris and moisture on the surface and inside of the cracks, provide a good foundation for subsequent interface treatment and filling, and improve the adhesion between the repair material and the crack wall. And different interface treatment materials and methods are selected according to the width of the cracks, which can better adapt to the repair needs of cracks of different widths, enhance the bonding performance of the interface, prevent moisture and debris from penetrating into the bottom of the cracks, thereby extending the service life of the repair effect. The caulking material prepared by a composite of various materials such as modified asphalt, rubber powder, graphene, nano-silica, etc. has good high temperature resistance, low temperature resistance, aging resistance and bonding performance, can adapt to the complex use environment of municipal roads, and effectively improve the quality and durability of crack repair.

[0046] The above is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A municipal road crack repair construction method, characterized in that: The specific steps of the repair construction method are as follows: S100, using cleaning equipment to effectively clean and dry road cracks, and using a crack detector to detect the width, depth, and direction of the cracks; S200, selecting an interface treatment method according to the crack width to enhance the bonding force between the crack wall and the caulking material; S300, preparing a filling material according to the width and depth of the crack, and filling the crack with the prepared filling material; S400: Before the caulking material is completely cured, spread a layer of quartz sand on its surface to increase the surface roughness and anti-slip performance. After the caulking material is completely cured, use a road sweeper to clean the repair area and its surroundings to remove excess quartz sand and debris. S500. After the repair is completed, set up obvious warning signs in the repair area. During the maintenance period, regularly observe the repair area. If cracks reappear or caulking materials fall off, take timely measures.

2. A municipal road crack repair construction method according to claim 1, characterized in that: In step S100, the cleaning device includes a water tank (1), a water pump (2) is provided on the side of the water tank (1), the water suction end of the water pump (2) is connected to the water tank (1), the discharge end of the water pump (2) is connected to a high-pressure water gun (3), the high-pressure water gun (3) is provided with a hot air blower (4), the hot air blower (4) and the water tank (1) are electrically connected, and a movable base (5) is installed on the bottom surface of the water tank (1) for driving the flexible movement of the entire device.

3. A municipal road crack repair construction method according to claim 2, characterized in that: A handle (11) is provided on one side of the water tank (1) near the top, and a water suction pipe (12) and a drainage pipe (17) are provided on the side of the water tank (1) aligned with the bottom of the inner cavity thereof, and a throttle valve (18) is provided on the drainage pipe (17); a control box (13) is provided on the bottom surface of the water tank (1), a plurality of communication slots (15) are provided on the side of the control box (13), and a plug-in slot (19) is provided at the bottom end of the control box (13), a plurality of top screws (14) are provided on the side of the control box (13) aligned with the plug-in slot (19) for fixing the mobile base (5), and a charging slot (16) is provided on the side of the control box (13) for charging the battery inside the control box (13).

4. A municipal road crack repair construction method according to claim 3, characterized in that: The water pump (2) is provided with two external pipes (21) at the end thereof, and an adapter cap (22) is provided at the end thereof. The two external pipes (21) serve as the water suction end and the water discharge end of the water pump (2), respectively. The external pipe (21) serving as the water suction end of the water pump (2) is connected to the water suction pipe (12); a plurality of fixing legs (23) are provided at one end of the water pump (2) that is in contact with the control box, and fixing holes (24) are provided on the fixing legs (23). The water pump (2) is fixed to the control box by bolts passing through the fixing holes (24); a first communication line (25) is provided on the side of the water pump (2), and a first communication plug (26) is provided at the end of the first communication line (25). The first communication plug (26) is plug-connected to the control box.

5. A municipal road crack repair construction method according to claim 2, characterized in that: The high-pressure water gun (3) is provided with an annular groove (31), and a handle (32) is provided at the bottom of the high-pressure water gun (3), a switch (33) is provided on the handle (32), a nozzle (34) is provided at the output end of the high-pressure water gun (3), a spring tube (35) is provided at the bottom of the handle (32), a connector (36) is provided at the bottom of the spring tube (35), and the connector (36) is connected to the drainage end of the water pump (2).

6. A municipal road crack repair construction method according to claim 5, characterized in that: The hot air blower (4) is provided with a hot air pipe (41) in the direction of the output end of the high-pressure water gun (3), the outlet of the hot air pipe (41) is arranged at the bottom of the nozzle (34), a blower (42) is provided inside the hot air blower (4), and a heating wire is provided along the outlet of the blower (42) inside the hot air blower (4); a filter plate (43) is provided on the hot air blower (44) at the air inlet end thereof, and an adapter ring (44) is provided on the filter plate (43). ), the adapter ring (44) is threadedly connected to the hot air blower (4); a second connecting line (45) is provided on the side of the hot air blower (4), and a second connecting plug (46) is provided at the end of the second connecting line (45), and the second connecting plug (46) is electrically connected to the water storage tank (1); a ring (47) is provided at the bottom of the hot air blower (4), and the ring (47) is sleeved on the inner side of the ring groove (31), and a tightening knob (48) is provided on the side of the ring (47).

7. A municipal road crack repair construction method according to claim 3, characterized in that: Universal wheels (52) are provided at the corners of the bottom surface of the movable base (5), and a plug plate (51) is provided at the top of the movable base (5). The plug plate (51) is inserted into the plug slot (19), and the top screw (14) is pressed tightly on the plug plate (51).

8. A municipal road crack repair construction method according to any one of claims 2 to 7, characterized in that: The cover (6) is also provided with a limit ring (62) at the bottom end thereof, and the limit ring (62) is inserted into the top opening of the water storage tank (1). The upper surface of the cover (6) is provided with a handle (61), and the handle (61) is used for disassembly, assembly, and use of the cover (6).

9. A municipal road crack repair construction method according to claim 1, characterized in that: In the step S200, when the crack cross section is processed, when the width is less than 3 mm, epoxy resin emulsion is evenly applied to the crack surface and the surrounding 2-3 cm area with a thickness of 0.1-0.2 mm; when the width is 3-5 mm, acrylic emulsion and cement are mixed in a ratio of 1:2-1:3 to prepare an interface agent, which is applied to the crack and the surrounding 3-5 cm area with a thickness of 0.2-0.3 mm; when the width is greater than 5 mm, a glass fiber mesh cloth with a width of 5-10 cm wider than the crack is first laid at the bottom of the crack, and then an interface enhancer prepared by polyurethane emulsion, silane coupling agent and cement in a ratio of 1:0.1-1:0.2:2-3 is poured until it is flush with the road surface.

10. A municipal road crack repair construction method according to claim 1, characterized in that: In step S300, when preparing the sealing material, its raw materials include, by weight, 40-50 parts of modified asphalt, 10-15 parts of rubber powder, 0.5-1 part of graphene, 2-3 parts of nano-silica, 5-8 parts of plasticizer, and 3-5 parts of stabilizer; the modified asphalt is heated to 160-180°C, the rubber powder is added and stirred, and then the temperature is kept warm for 30-40 minutes, and then the remaining raw materials are added and stirred for 20-30 minutes; the sealing material is heated to 140-160°C, and injected from one end of the crack using a sealing machine, with the surface being 1-2 mm higher than the road surface. Cracks with a width greater than 5 mm are filled twice, the first filling to a depth of 2 / 3, and the second filling after an interval of 10-15 minutes.

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