High-temperature-resistant asphalt pavement structure

Abstract

The utility model relates to the technical field of road engineering, and discloses a high-temperature-resistant asphalt pavement structure which comprises a plurality of road piers, a second water pump is fixedly connected to the front side of the outer wall of the road pier on the front side, a second hose is communicated with the rear side of the outer wall of the road pier on the rear side, and a filter screen is installed in the second hose. One end of the second hose communicates with the suction end of a second water pump, a water storage tank is fixedly connected to the front side of the outer wall of the road pier on the front side, the other end of the second water pump communicates with the left side of the outer wall of the water storage tank, and a first water pump is fixedly connected to the right side of the outer wall of the road pier on the front side. According to the rainwater collecting device, dirt attached to the inner wall of the second hose is removed through the cleaning brush and the scraper blade, smoothness is guaranteed, effective recycling of rainwater is achieved, and therefore the problems that after a collecting pipeline collects waste water for a long time, leaves, garbage, dust and other impurities flow to a rainwater collecting opening along with the rainwater, blocking is caused, and then the collecting efficiency is affected are solved.

Description

Technical Field

[0001] This utility model relates to the field of road engineering technology, and in particular to a high-temperature resistant asphalt pavement structure. Background Technology

[0002] Asphalt pavement refers to various types of pavement constructed by mixing road asphalt materials with mineral materials. It uses asphalt binder as the cementing material to bond mineral aggregates and granular materials together. Through the construction process of paving and compaction, it forms a road surface structure layer with a certain strength and stability, providing vehicles with a smooth, anti-skid, and wear-resistant road surface.

[0003] A search revealed Chinese Patent Publication No. CN113279302A, which discloses a high-temperature rutting-resistant flexible base asphalt pavement structure suitable for low-traffic roads, belonging to the field of road engineering. The pavement structure includes an asphalt-stabilized crushed stone flexible base layer, an emulsified asphalt tack coat, a skeleton-interlocked asphalt crushed stone lower layer, and an upper layer, laid sequentially from bottom to top on the subgrade. Compared with existing technologies, this invention's asphalt pavement structure features simple material transportation, low engineering cost, simple construction process, and strong high-temperature resistance and rutting resistance, achieving the goal of rapid paving and durable use for low-traffic roads, and has significant application value. However, after long-term collection of wastewater, debris such as leaves, garbage, and dust can flow with rainwater to the rainwater collection inlet, causing blockage and affecting collection efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a high-temperature resistant asphalt pavement structure, which aims to improve the problem in the prior art where, after collecting wastewater for a long time, debris such as leaves, garbage, and dust flows with rainwater to the rainwater collection inlet, causing blockage and thus affecting collection efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-temperature resistant asphalt pavement structure, comprising multiple road piers, a second water pump fixedly connected to the front side of the outer wall of the front road pier, a second flexible hose connected to the rear side of the outer wall of the rear road pier, a filter screen installed inside the second flexible hose, one end of the second flexible hose connected to the suction end of the second water pump, a water storage tank fixedly connected to the front side of the outer wall of the front road pier, the other end of the second water pump connected to the left side of the outer wall of the water storage tank, a first water pump fixedly connected to the right side of the outer wall of the front road pier, one end of the first water pump connected to the water storage tank, a first flexible hose connected to the first water pump, a fixed short plate installed inside the second flexible hose, a fixed short column rotatably connected to the rear side of the outer wall of the fixed short plate, an impeller fixedly connected to the other end of the outer wall of the fixed short column, a cleaning brush fixedly connected to the middle of the rear side of the impeller, and multiple scrapers fixedly connected at equal intervals to the rear side of the outer wall of the impeller.

[0006] The above technical solution works as follows: rainwater flows into hose two, then pump two pumps the water in. The rainwater is drawn into hose two, and the filter installed inside hose two filters out larger impurities in the rainwater, preventing them from entering pump two and the subsequent water storage tank. When the rainwater is stored in the water storage tank, pump two transports the filtered rainwater to the connected water storage tank for later use. As the rainwater flows in hose two, the water flow impacts the impeller at the end of the fixed short column, causing the impeller to rotate around the fixed short column on the fixed short plate. As the impeller rotates, the cleaning brush fixedly connected to the middle of its rear side and the scraper on the rear side of the outer wall also rotate. The cleaning brush can clean the inner wall of hose two to keep hose two unobstructed, transporting rainwater to where it is needed, thus realizing the reuse of rainwater.

[0007] As a further description of the above technical solution:

[0008] The outer walls of the two road piers are fixedly connected to each other on one side with crushed stone mixture. Lightweight high-strength aggregate mixture is installed on top of the crushed stone mixture. High-performance modified asphalt mixture is installed on top of the lightweight high-strength aggregate mixture.

[0009] The above technical solution involves a surface layer made of high-performance modified asphalt mixture with a thickness of 5cm. This high-performance modified asphalt mixture is based on Grade 70 A petroleum asphalt, with the addition of 4% SBS modifier, 1% polypropylene fiber, and 0.5% nano-silica. The SBS modifier enhances the high-temperature stability and low-temperature crack resistance of the asphalt by increasing its adhesion and elastic modulus. The polypropylene fiber increases the internal structural stability of the mixture, and the nano-silica further improves the shear resistance of the mixture. Furthermore, the SBS modifier can be replaced with EVA modifier to reduce costs. The intermediate layer uses a lightweight high-strength aggregate mixture with a thickness of 10cm. The lightweight high-strength aggregate is selected from low-density, high-strength basalt particles with a particle size range of... With a particle size of 5mm to 10mm, this type of aggregate can not only disperse and absorb pressure from above, reducing the burden on the lower layers, but also reduce the rate of heat transfer downwards. In addition to basalt particles, expanded clay or perlite can also be selected as lightweight, high-strength aggregates. These materials also have good thermal insulation properties and high strength. Then, a cement-stabilized crushed stone mixture with a thickness of 20cm is used as the bottom layer. Ordinary silicate cement is used as a curing agent in this layer, and the maximum particle size of the crushed stone does not exceed 30mm. The cement-stabilized crushed stone mixture has good load-bearing capacity and water stability, ensuring the stability of the entire road surface foundation. The selection of materials for this layer takes into account both economy and mechanical properties. The layers are firmly connected by special adhesives to prevent moisture penetration and interface separation.

[0010] As a further description of the above technical solution:

[0011] The top of the water tank is threaded with a screw, and a warning sign is threaded onto the outer wall of the screw.

[0012] Through the above technical solution, the warning sign on the top of the water tank can serve as a warning and reminder to the surrounding people and the public to prevent danger.

[0013] As a further description of the above technical solution:

[0014] A hinge is fixedly connected to the top left side of the water storage tank, and an observation window is rotatably connected to the other end of the outer wall of the hinge.

[0015] The above technical solution allows for the observation window, which is rotatably connected to the other end of the top left hinge of the water tank, to facilitate staff to view the internal condition of the water tank.

[0016] As a further description of the above technical solution:

[0017] A handle is fixedly connected to the top of the observation window, and an anti-slip sleeve is fixedly connected to the outer wall of the handle.

[0018] The above technical solution provides a handle fixedly connected to the top of the observation window, which facilitates the opening and closing of the observation window by staff.

[0019] As a further description of the above technical solution:

[0020] A buckle is fixedly connected to the top left side of the observation window, and a ring is fixedly connected to the top left side of the water tank. The ring and the buckle are engaged and connected.

[0021] The above technical solution, which uses a snap-fit ​​connection between a clasp and a buckle, enhances the sealing performance of the observation window and prevents impurities from entering the water tank and causing contamination.

[0022] As a further description of the above technical solution:

[0023] Multiple sliding grooves are equidistantly provided on the right side of the outer wall of the front road pier, and a protective shell is slidably connected inside the sliding groove.

[0024] Through the above technical solution, the protective shell can protect the nozzle.

[0025] As a further description of the above technical solution:

[0026] A placement slot is provided on the top right side of the road pier mentioned in front.

[0027] The above technical solution allows the placement slot to facilitate the placement of the nozzle.

[0028] This utility model has the following beneficial effects:

[0029] 1. In this utility model, rainwater flows into the water tank through a second flexible hose and is pumped to the water storage tank by a water pump. The second flexible hose is equipped with a filter screen to filter out large impurities and protect the water pump and the water storage tank. When the water storage tank is full, the water pump delivers water to the water storage tank for storage. At the same time, the water flow in the second flexible hose drives the impeller to rotate, which drives the cleaning brush and scraper to remove the dirt attached to the inner wall of the second flexible hose, ensuring unobstructed flow and realizing the effective reuse of rainwater. This avoids the problem that after collecting wastewater for a long time, such as leaves, garbage, dust and debris will flow with the rainwater to the rainwater collection port, causing blockage and affecting the collection efficiency.

[0030] 2. In this utility model, the surface layer uses a high-performance modified asphalt mixture with a thickness of 5cm. The high-performance modified asphalt mixture is based on No. 70 Grade A petroleum asphalt, with the addition of 4% SBS modifier, 1% polypropylene fiber and 0.5% nano silica. The SBS modifier can enhance the high-temperature stability and low-temperature crack resistance of the asphalt by improving its adhesion and elastic modulus. The polypropylene fiber increases the internal structural stability of the mixture, and the nano silica further improves the shear resistance of the mixture. In addition, the SBS modifier can also be replaced by EVA modifier to reduce costs. Attached Figure Description

[0031] Figure 1 This is a perspective view of a high-temperature resistant asphalt pavement structure proposed in this utility model.

[0032] Figure 2 This is a front view of a high-temperature resistant asphalt pavement structure proposed in this utility model.

[0033] Figure 3 This is a partial structural diagram of a high-temperature resistant asphalt pavement structure proposed in this utility model.

[0034] Figure 4 This is a cross-sectional view of a high-temperature resistant asphalt pavement structure proposed in this utility model.

[0035] Figure 5 This is a partial structural breakdown diagram of a high-temperature resistant asphalt pavement structure proposed in this utility model.

[0036] Legend:

[0037] 1. Road pier; 2. Lightweight high-strength aggregate mixture; 3. High-performance modified asphalt mixture; 4. Protective shell; 5. Hoses I; 6. Water pump I; 7. Water tank; 8. Screw I; 9. Warning sign; 10. Hinges; 11. Observation window; 12. Buckle; 13. Ring; 14. Hoses II; 15. Handle; 16. Anti-slip sleeve; 17. Slide groove; 18. Water pump II; 19. Filter screen; 20. Scraper; 21. Cleaning brush; 22. Impeller; 23. Fixed short post; 24. Fixed short plate; 25. Crushed stone mixture; 26. Placement trough. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0039] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a high-temperature resistant asphalt pavement structure, comprising multiple road piers 1. A water pump 2 18 is fixedly connected to the front side of the outer wall of the front road pier 1. A flexible hose 2 14 is connected to the rear side of the outer wall of the rear road pier 1. A filter screen 19 is installed inside the flexible hose 2 14, which serves to filter and block the flow. One end of the flexible hose 2 14 is connected to the suction end of the water pump 2 18. A water storage tank 7 is fixedly connected to the front side of the outer wall of the front road pier 1. The other end of the water pump 2 18 is connected to the left side of the outer wall of the water storage tank 7. A water pump 1 6 is fixedly connected to the right side of the outer wall of the front road pier 1. One end of the outer wall of the water pump 1 6 is connected to the water storage tank 7. A flexible hose 1 5 is connected to the water pump 1 6. A fixing short plate 24 is installed inside the flexible hose 2 14, which serves to support and fix the structure. A fixed short column 23 is rotatably connected to the rear side of the outer wall of the water tank 7. An impeller 22 is fixedly connected to the other end of the outer wall of the fixed short column 23. A cleaning brush 21 is fixedly connected to the middle of the rear side of the impeller 22. The cleaning brush 21 is used for rotation and cleaning. Multiple scrapers 20 are fixedly connected at equal intervals to the rear side of the outer wall of the impeller 22. A screw 8 is threadedly connected to the top of the water tank 7. A warning sign 9 is threadedly connected to the outer wall of the screw 8. The warning sign 9 on the top of the water tank 7 can serve as a warning and reminder to the surrounding personnel and the public to avoid danger. A hinge 10 is fixedly connected to the top left side of the water tank 7. An observation window 11 is rotatably connected to the other end of the outer wall of the hinge 10. The observation window 11 connected to the other end of the hinge 10 on the top left side of the water tank 7 can facilitate the staff to check the internal condition of the water tank 7.

[0040] Specifically, rainwater flows into hose 2 14, and then water pump 2 18 is activated to draw the water in. The rainwater is drawn into hose 2 14, and the filter screen 19 installed inside hose 2 14 filters out larger impurities in the rainwater, preventing them from entering water pump 2 18 and the subsequent water storage tank 7. When the rainwater is stored in the water storage tank 7, water pump 2 18 transports the filtered rainwater to the connected water storage tank 7 for storage, for later use. As the rainwater flows in hose 2 14, the water flow impacts the impeller 22 at the end of the fixed short column 23, causing the impeller 22 to rotate around the fixed short column 23 on the fixed short plate 24. As the impeller 22 rotates, the cleaning brush 21 fixedly connected to its rear middle and the scraper on the rear side of the outer wall move around it. 20 also rotates accordingly, and the cleaning brush 21 can clean the inner wall of the hose 2 14 to keep the hose 2 14 unobstructed, and deliver rainwater to the place where water is needed to realize the reuse of rainwater. The top of the water storage tank 7 is threadedly connected to the screw 1 8, and the outer wall of the screw 1 8 is threadedly connected to the warning sign 9. The warning sign 9 on the top of the water storage tank 7 can serve as a warning and reminder to the surrounding people and the public to avoid danger. The top left side of the water storage tank 7 is fixedly connected to the hinge 10, and the other end of the outer wall of the hinge 10 is rotatably connected to the observation window 11. The observation window 11 rotatably connected to the other end of the top left side of the water storage tank 7 can facilitate the staff to check the internal condition of the water storage tank 7.

[0041] Reference Figure 1 , Figure 4 and Figure 5 Two road piers 1 are fixedly connected to adjacent sides of the outer wall of the road piers with crushed stone mixture 25. Lightweight high-strength aggregate mixture 2 is installed on the top of the crushed stone mixture 25. High-performance modified asphalt mixture 3 is installed on the top of the lightweight high-strength aggregate mixture 2. A handle 15 is fixedly connected to the top of the observation window 11. An anti-slip sleeve 16 is fixedly connected to the outer wall of the handle 15. The handle 15 fixedly connected to the top of the observation window 11 can facilitate the opening and closing of the observation window 11 by the staff. A buckle 12 is fixedly connected to the top left side of the observation window 11. A ring 13 is fixedly connected to the top left side of the water tank 7. The ring 13 and the buckle 12 are engaged and connected. The engagement and connection of the ring 13 and the buckle 12 can enhance the sealing performance of the observation window 11 and prevent impurities from entering the water tank 7 and causing pollution.

[0042] Specifically, the surface layer uses a high-performance modified asphalt mixture 3 with a thickness of 5cm. This mixture 3 is based on Grade 70 A petroleum asphalt, with the addition of 4% SBS modifier, 1% polypropylene fiber, and 0.5% nano-silica. The SBS modifier enhances the asphalt's high-temperature stability and low-temperature crack resistance by increasing its adhesion and elastic modulus. The polypropylene fiber increases the internal structural stability of the mixture, and the nano-silica further improves the mixture's shear resistance. Furthermore, the SBS modifier can be replaced with an EVA modifier to reduce costs. The intermediate layer uses a lightweight high-strength aggregate mixture 2 with a thickness of 10cm. This lightweight high-strength aggregate 2 is made of low-density, high-strength basalt particles with a particle size range of 5mm to 10mm. This aggregate not only disperses and absorbs pressure from above, reducing the burden on the lower layers, but also reduces the rate of heat transfer downwards. In addition to basalt particles, expanded clay or expanded perlite can also be selected as lightweight high-strength aggregates, as these materials also possess good properties. The surface features good thermal insulation and high strength. A 20cm thick cement-stabilized crushed stone mixture 25 is used as the base layer, with ordinary silicate cement as the curing agent. The maximum particle size of the crushed stone does not exceed 30mm. The cement-stabilized crushed stone mixture 25 has good load-bearing capacity and water stability, ensuring the stability of the entire road surface foundation. This material selection considers both economy and mechanical properties. Each layer is firmly connected with a special adhesive to prevent moisture penetration and interface separation. A handle 15 is fixedly connected to the top of the observation window 11, and an anti-slip sleeve 16 is fixedly connected to the outer wall of the handle 15. The handle 15 at the top of the observation window 11 facilitates the opening and closing of the observation window 11 by personnel. A latch 12 is fixedly connected to the top left side of the observation window 11, and a ring 13 is fixedly connected to the top left side of the water storage tank 7. The ring 13 engages with the latch 12, enhancing the sealing performance of the observation window 11 and preventing impurities from entering the water storage tank 7 and causing contamination.

[0043] Reference Figure 1 and Figure 2 Multiple sliding grooves 17 are equidistantly provided on the right side of the outer wall of the front road block 1. A protective shell 4 is slidably connected inside the sliding groove 17. The protective shell 4 can protect the nozzle. A placement groove 26 is provided on the top right side of the front road block 1. The placement groove 26 can facilitate the placement of the nozzle.

[0044] Specifically, multiple sliding grooves 17 are equidistantly provided on the right side of the outer wall of the front road block 1. A protective shell 4 is slidably connected inside the sliding groove 17. The protective shell 4 can protect the nozzle. A placement groove 26 is provided on the top right side of the front road block 1. The placement groove 26 can facilitate the placement of the nozzle.

[0045] Working principle: Rainwater flows into hose 2 14, then pump 2 18 is activated to draw water in. The rainwater is drawn into hose 2 14, where a filter 19 filters out larger impurities, preventing them from entering pump 2 18 and the subsequent water storage tank 7. Once the rainwater is stored in the water storage tank 7, pump 2 18 transports the filtered water to the connected tank for storage, ready for later use. As the rainwater flows through hose 2 14, the water flow impacts the impeller 22 at the end of the fixed short column 23, causing the impeller to... 22 rotates around the fixed short column 23 on the fixed short plate 24. As the impeller 22 rotates, the cleaning brush 21 fixedly connected to the middle of its rear side and the scraper 20 on the rear side of the outer wall also rotate. The cleaning brush 21 can clean the inner wall of the hose 14 to keep the hose 14 unobstructed and transport rainwater to the place where water is needed, so as to realize the reuse of rainwater. This avoids the problem that after the collection pipe has collected wastewater for a long time, leaves, garbage, dust and debris will flow to the rainwater collection port with the rainwater, causing blockage and affecting the collection efficiency.

[0046] The surface layer uses a 5cm thick high-performance modified asphalt mixture 3, based on Grade 70 A petroleum asphalt, with 4% SBS modifier, 1% polypropylene fiber, and 0.5% nano-silica. The SBS modifier enhances the asphalt's high-temperature stability and low-temperature crack resistance by increasing its adhesion and elastic modulus. The polypropylene fiber increases the internal structural stability of the mixture, and the nano-silica further improves its shear resistance. Furthermore, the SBS modifier can be replaced with EVA modifier to reduce costs. The intermediate layer uses a 10cm thick lightweight high-strength aggregate mixture 2, made of low-density, high-strength basalt particles with a particle size range of 5mm to 10mm. This aggregate not only disperses and absorbs pressure from above, reducing the burden on the lower layers, but also... It can also reduce the rate of heat transfer downwards. In addition to basalt particles, expanded clay or perlite can also be selected as lightweight, high-strength aggregates. These materials also have good thermal insulation properties and high strength. Then, the bottom layer uses cement-stabilized crushed stone mixture 25 with a thickness of 20cm. This layer uses ordinary silicate cement as a curing agent. The maximum particle size of the crushed stone does not exceed 30mm. Cement-stabilized crushed stone mixture 25 has good load-bearing capacity and water stability, ensuring the stability of the entire road surface foundation. The selection of this layer material takes into account both economy and mechanical properties. The layers are firmly connected by special adhesives to prevent water penetration and interface separation. This connection method not only enhances the bonding force between the layers, but also effectively prevents the influence of the external environment on the interior of the road surface, thereby ensuring the durability of the overall road surface structure and the integrity of the entire road surface.

[0047] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-temperature resistant asphalt pavement structure, comprising multiple road piers (1), characterized in that: A water pump 2 (18) is fixedly connected to the front side of the outer wall of the front road block (1), and a hose 2 (14) is connected to the rear side of the outer wall of the rear road block (1). A filter screen (19) is installed inside the hose 2 (14). One end of the hose 2 (14) is connected to the suction end of the water pump 2 (18). A water storage tank (7) is fixedly connected to the front side of the outer wall of the front road block (1), and the other end of the water pump 2 (18) is connected to the left side of the outer wall of the water storage tank (7). A water pump 1 (6) is fixedly connected to the right side of the outer wall of the front road block (1). The outer wall of the water pump (6) is connected to the water storage tank (7) at one end. The water pump (6) is connected to the hose (5). The hose (14) is equipped with a fixed short plate (24). The fixed short plate (24) is rotatably connected to the rear side of the outer wall of the fixed short plate (24). The other end of the outer wall of the fixed short plate (23) is fixedly connected to the impeller (22). The middle of the rear side of the impeller (22) is fixedly connected to the cleaning brush (21). Multiple scrapers (20) are fixedly connected at equal intervals on the rear side of the outer wall of the impeller (22).

2. The high-temperature resistant asphalt pavement structure according to claim 1, characterized in that: Two road piers (1) are fixedly connected to adjacent sides of the outer wall of the two road piers (1). Lightweight high-strength aggregate mixture (2) is installed on the top of the aggregate mixture (25). High-performance modified asphalt mixture (3) is installed on the top of the lightweight high-strength aggregate mixture (2).

3. The high-temperature resistant asphalt pavement structure according to claim 1, characterized in that: The top of the water tank (7) is threaded with a screw (8), and the outer wall of the screw (8) is threaded with a warning sign (9).

4. The high-temperature resistant asphalt pavement structure according to claim 1, characterized in that: A hinge (10) is fixedly connected to the top left side of the water storage tank (7), and an observation window (11) is rotatably connected to the other end of the outer wall of the hinge (10).

5. The high-temperature resistant asphalt pavement structure according to claim 4, characterized in that: A handle (15) is fixedly connected to the top of the observation window (11), and an anti-slip sleeve (16) is fixedly connected to the outer wall of the handle (15).

6. The high-temperature resistant asphalt pavement structure according to claim 4, characterized in that: The top left side of the observation window (11) is fixedly connected to a buckle (12), and the top left side of the water tank (7) is fixedly connected to a ring (13), which is engaged with the buckle (12).

7. The high-temperature resistant asphalt pavement structure according to claim 1, characterized in that: Multiple sliding grooves (17) are equidistantly provided on the right side of the outer wall of the front road block (1), and a protective shell (4) is slidably connected inside the sliding groove (17).

8. The high-temperature resistant asphalt pavement structure according to claim 1, characterized in that: The top right side of the road block (1) is provided with a placement groove (26).

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