Asphalt insulating brick and preparation method thereof

Abstract

The invention relates to the technical field of asphalt insulating bricks, and discloses an asphalt insulating brick. Comprising an asphalt insulating brick, a first tower connecting seat is adhered to the front surface of the asphalt insulating brick, a second tower connecting seat is adhered to the rear surface of the asphalt insulating brick, embedding plates are fixedly connected to the surfaces of the first tower connecting seat and the second tower connecting seat, grooves are formed in the two sides of each embedding plate, and a sliding groove is formed in the front surface of each embedding plate; first springs are fixedly connected to the interiors of the first tower connecting seat and the second tower connecting seat, fixing plates are fixedly connected to the side ends of the first springs, connecting plates are fixedly connected to the side surfaces of the fixing plates, rotating rods are movably connected to the rear surfaces of the connecting plates through bearings, and embedding rollers are connected to the side surfaces of the rotating rods in a sleeving mode; the purpose of independently taking out and replacing a single insulating brick in a region is achieved, all insulating bricks do not need to be dismantled, and the maintenance cost is reduced while the maintenance efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of asphalt insulating bricks, in particular to an asphalt insulating brick and a preparation method thereof. Background Art

[0002] With the rapid development of the power industry, substations are an important part of the power system, and their operational safety and stability are crucial to the normal operation of the entire power system. Substations carry a large number of electrical equipment and transmission lines. The ultra-high current or ultra-high voltage carried in these equipment lines can easily cause dangers such as electric shock, local high temperature, and even fire. Therefore, in order to ensure the safe operation of substations, high-performance asphalt insulation bricks must be used to reduce these potential risks. Although there are many asphalt insulation brick products on the market, there are still some problems in practical applications;

[0003] Some asphalt insulating bricks need to be replaced after being damaged, but the existing asphalt insulating bricks need to be completely dismantled and rebuilt, which increases the maintenance cost of the asphalt insulating bricks. At the same time, after detecting the temperature, humidity and position of the asphalt insulating bricks during installation, it is inconvenient to dismantle the used sensors for reuse. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides an asphalt insulating brick and a preparation method thereof. When a plurality of asphalt insulating bricks are overlapped, an embedding plate can be embedded into the interior of a first tower seat and a second tower seat so that an arc ball can be embedded into the interior of a slide groove to guide the embedding of the embedding plate, and at the same time, the embedding speed of the embedding plate can be increased. When the embedding plate is embedded into the interior of the first tower seat and the second tower seat, the elasticity of the first spring is utilized to make the embedding roller squeezed by the embedding plate, and the orientation of the embedding roller can be changed by the first spring. When the embedding plate continues to extend into the interior of the first tower seat and the second tower seat, the groove can correspond to the embedding roller, so that the embedding roller can be embedded into the interior of the groove to stop squeezing the first spring, so that the first spring can rebound in the opposite direction to push the embedding roller to one side and be clamped in the interior of the groove to fix the embedding plate, so that the asphalt insulating bricks can be overlapped and used, and rubber adhesive can also be used to fix the embedding plate and the first tower seat and the second tower seat. The two tower seats are bonded together, so that a single insulating brick in an area can be independently taken out and replaced without removing all the insulating bricks, which improves maintenance efficiency and reduces maintenance costs. When the asphalt insulating bricks are overlapped, the two sets of pull rods can be pushed forward and backward respectively. Since the placement plate is made of soft material, the pull plate can pull the placement plate out from the inside of the opening, so that by utilizing the movement of the placement plate and the pull rod, the temperature and humidity sensor and the position sensor can be pulled out in a vertical form when being pulled out from the inside of the first tower seat and the second tower seat. Since the extrusion seat squeezes one side of the temperature and humidity sensor and the position sensor, and the first baffle and the second baffle can block one side of the temperature and humidity sensor and the position sensor, the temperature and humidity sensor and the position sensor can be placed in other asphalt insulating bricks for use again after use, thereby reducing the production cost of asphalt insulating bricks and other advantages.

[0006] (II) Technical solution

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising an asphalt insulating brick, a first tower joint is adhered to the front surface of the asphalt insulating brick, a second tower joint is adhered to the rear surface of the asphalt insulating brick, a mosaic plate is fixedly connected to the surface of the first tower joint and the second tower joint, grooves are provided on both sides of the mosaic plate, and a slide groove is provided on the front surface of the mosaic plate;

[0008] The first tower seat and the second tower seat are both fixedly connected with a first spring inside, the side end of the first spring is fixedly connected with a fixing plate, the side surface of the fixing plate is fixedly connected with a connecting plate, the rear surface of the connecting plate is movably connected with a rotating rod through a bearing, the side surface of the rotating rod is sleeved with an engaging roller, and the engaging roller is engaged with the groove, and the side surface of the engaging roller is surrounded by a rubber sleeve.

[0009] Preferably, a placement groove is provided inside the first tower seat and the second tower seat, and arc balls are fixedly connected to the inner walls of the first tower seat and the second tower seat, and the arc balls are slidably connected to the sliding grooves.

[0010] Preferably, both the front surface of the first tower connector and the rear surface of the second tower connector are provided with openings, and the openings correspond to the placement grooves.

[0011] Preferably, a placement plate is slidably connected to the interior of the opening, and the placement plate is engaged with the placement groove, and a friction pad is provided on the upper surface of the placement plate.

[0012] Preferably, a first baffle is fixedly connected to the upper surface of the placement plate, and a second baffle is fixedly connected to the upper surface of the first baffle.

[0013] Preferably, a second spring is fixedly connected to the lower surface of the second baffle plate, and an extrusion seat is fixedly connected to the lower surface of the second spring away from the second baffle plate.

[0014] Preferably, both sides of the placement plate are movably connected to movable plates via bearings, and the front surface of the movable plate is fixedly connected to a fixing seat.

[0015] Preferably, the upper surface of the fixing seat is fixedly connected to a bearing plate, the side surface of the bearing plate is fixedly connected to a connecting rod, the side surface of the connecting rod is sleeved with a movable sleeve, and the upper surface of the movable sleeve is fixedly connected to a pull rod.

[0016] Preferably, the placement groove is used to place the temperature and humidity sensor and the position sensor, and the mosaic plate and the first tower seat and the second tower seat can be reinforced with rubber adhesive, and the first tower seat and the second tower seat are both made of rubber material.

[0017] A method for preparing asphalt insulating bricks, comprising the following steps:

[0018] S1. Prepared by using recycled asphalt mixture as raw material, the mass fraction of each component in the recycled asphalt mixture is: 35% to 40% of RAP with a particle size of 0-5mm, 20% to 25% of RAP with a particle size of 5-10mm, 25% to 30% of RAP with a particle size of 10-30mm, 1% to 2% of mineral powder, 0.5% to 2% of cement, 2% to 3% of emulsified asphalt, 4% to 5% of water, 3% to 5% of high boiling point solvent oil, and 2% to 4% of liquid paraffin. Among them, the admixture is waste rock wool fiber, and the mass fraction of waste rock wool fiber is 2% to 3%. The aggregate grading adopts AC-13 type, and various raw materials are mixed to prepare asphalt insulating bricks.

[0019] Compared with the prior art, the present invention provides an asphalt insulating brick and a preparation method thereof, which have the following beneficial effects:

[0020] 1. When a plurality of asphalt insulating bricks of the present invention are overlapped, the interlocking plate can be interlocked into the interior of the first tower seat and the second tower seat so that the arc ball can be interlocked into the interior of the slide groove to guide the interlocking of the interlocking plate and at the same time improve the interlocking speed of the interlocking plate. When the interlocking plate is interlocked into the interior of the first tower seat and the second tower seat, the elasticity of the first spring is used to make the interlocking roller squeezed by the interlocking plate, and the orientation of the interlocking roller can be changed by the first spring. When the interlocking plate continues to extend into the interior of the first tower seat and the second tower seat, the groove can correspond to the interlocking roller, so that the interlocking roller can be interlocked into the interior of the groove to stop squeezing the first spring, so that the first spring can rebound in the opposite direction to push the interlocking roller to one side and be engaged in the interior of the groove to fix the interlocking plate, so that the asphalt insulating bricks can be overlapped and used, and the interlocking plate can also be bonded to the first tower seat and the second tower seat by using rubber adhesive, so as to achieve the purpose of independently taking out and replacing a single insulating brick in an area without removing all the insulating bricks, thereby improving maintenance efficiency and reducing maintenance costs.

[0021] 2. After the asphalt insulating bricks of the present invention are overlapped, the two sets of pull rods can be pushed forward and backward respectively. Since the placement plate is made of soft material, the pull plate can pull the placement plate out from the inside of the opening. By utilizing the movement of the placement plate and the pull rod, the temperature and humidity sensor and the position sensor can be pulled out in a vertical form when being pulled out from the inside of the first tower seat and the second tower seat. Since the extrusion seat squeezes one side of the temperature and humidity sensor and the position sensor, and the first baffle plate and the second baffle plate can block one side of the temperature and humidity sensor and the position sensor, the temperature and humidity sensor and the position sensor can be placed in other asphalt insulating bricks for use again after use, thereby reducing the production cost of asphalt insulating bricks.

[0022] 3. The present invention uses recycled asphalt mixture to prepare asphalt insulating bricks, which not only realizes the recycling and reuse of aged asphalt mixture, but also meets the carbon reduction target. When producing asphalt insulating bricks, adding high-boiling point solvent oil and liquid paraffin can help reduce the brittleness of asphalt and avoid cracking in cold weather. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the structure at A in the figure;

[0025] Figure 3 This is a schematic diagram of the top view of the structure of the first tower connection base of the present invention;

[0026] Figure 4 for Figure 3 Schematic diagram of the structure at B in the middle;

[0027] Figure 5It is a rear view structural schematic diagram of the fixing seat of the present invention;

[0028] Figure 6 This is a schematic diagram of the split structure of the second baffle of the present invention.

[0029] Among them: 1. Asphalt insulating brick; 2. First tower seat; 3. Engaging plate; 4. Groove; 5. Slide; 6. Second tower seat; 7. Placement groove; 8. Fixed plate; 9. First spring; 10. Connecting plate; 11. Rubber sleeve; 12. Engaging roller; 13. Rotating rod; 14. Opening; 15. Fixed seat; 16. Movable sleeve; 17. Bearing plate; 18. Pull rod; 19. Movable plate; 20. Placement plate; 21. First baffle plate; 22. Second baffle plate; 23. Friction pad; 24. Second spring; 25. Extrusion seat; 26. Arc ball. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1:

[0032] See also Figure 1-6An asphalt insulating brick and a preparation method thereof, comprising an asphalt insulating brick 1, a first tower seat 2 is adhered to the front surface of the asphalt insulating brick 1, a second tower seat 6 is adhered to the rear surface of the asphalt insulating brick 1, a mosaic plate 3 is fixedly connected to the surface of the first tower seat 2 and the second tower seat 6, grooves 4 are arranged on both sides of the mosaic plate 3, a slide groove 5 is arranged on the front surface of the mosaic plate 3, an arc ball 26 is fixedly connected to the inner wall of the first tower seat 2 and the second tower seat 6, and the arc ball 26 is slidably connected to the slide groove 5, and the interior of the first tower seat 2 and the second tower seat 6 are fixedly connected There is a first spring 9, the side end of the first spring 9 is fixedly connected with a fixed plate 8, the side surface of the fixed plate 8 is fixedly connected with a connecting plate 10, the rear surface of the connecting plate 10 is movably connected with a rotating rod 13 through a bearing, the side surface of the rotating rod 13 is sleeved with an embedded roller 12, and the embedded roller 12 is embedded and connected with the groove 4, and the side surface of the embedded roller 12 is surrounded by a rubber sleeve 11. The embedded plate 3 and the first tower joint 2 and the second tower joint 6 can be reinforced with a rubber adhesive. The first tower joint 2 and the second tower joint 6 are both made of rubber. Multiple asphalt insulating bricks 1 are connected in a tower. When multiple asphalt insulating bricks 1 are connected in towers, the embedding plate 3 can be embedded into the interior of the first tower seat 2 and the second tower seat 6 so that the arc ball 26 can be embedded into the interior of the slide groove 5 to guide the embedding of the embedding plate 3, and at the same time, the embedding speed of the embedding plate 3 can be improved. When the embedding plate 3 is embedded into the interior of the first tower seat 2 and the second tower seat 6, the elasticity of the first spring 9 is used to make the embedding roller 12 squeezed by the embedding plate 3, and the orientation of the embedding roller 12 can be changed by the first spring 9. When the embedding plate 3 continues to extend into the interior of the first tower seat 2 and the second tower seat 6, the concave The groove 4 can correspond to the engaging roller 12, so that the engaging roller 12 can be engaged into the inside of the groove 4 to stop squeezing the first spring 9, so that the first spring 9 can rebound in the opposite direction to push the engaging roller 12 to one side and be clamped in the inside of the groove 4 to fix the engaging plate 3, so that the asphalt insulating brick 1 can be overlapped and used, and the rubber adhesive can also be used to bond the engaging plate 3 to the first tower seat 2 and the second tower seat 6, thereby achieving the purpose of independently taking out and replacing a single insulating brick in an area without removing all the insulating bricks, thereby improving maintenance efficiency and reducing maintenance costs.

[0033] The first tower seat 2 and the second tower seat 6 are provided with a placement groove 7 inside, the front surface of the first tower seat 2 and the rear surface of the second tower seat 6 are both provided with an opening 14, and the opening 14 corresponds to the placement groove 7, the inside of the opening 14 is slidably connected with a placement plate 20, and the placement plate 20 is engaged with the placement groove 7, and a friction pad 23 is provided on the upper surface of the placement plate 20, the upper surface of the placement plate 20 is fixedly connected with a first baffle 21, the upper surface of the first baffle 21 is fixedly connected with a second baffle 22, the lower surface of the second baffle 22 is fixedly connected with a second spring 24, and the lower surface of the second spring 24 away from the second baffle 22 is fixedly connected with an extrusion seat 25, and both sides of the placement plate 20 are through The bearing is movably connected with a movable plate 19, the front surface of the movable plate 19 is fixedly connected with a fixed seat 15, the upper surface of the fixed seat 15 is fixedly connected with a bearing plate 17, the side surface of the bearing plate 17 is fixedly connected with a connecting rod, the side surface of the connecting rod is sleeved with a movable sleeve 16, the upper surface of the movable sleeve 16 is fixedly connected with a pull rod 18, the placement groove 7 is used to place a temperature and humidity sensor and a position sensor, when the asphalt insulating brick 1 is overlapped for use, the temperature and humidity sensor and the position sensor can be placed in the placement groove 7 inside the first tower seat 2 and the second tower seat 6 respectively, the temperature and humidity sensor can be used to accurately detect the real-time temperature and humidity in the floor brick, thereby the resistance value of the floor brick can be prepared. It provides a safe construction environment for workers. In addition, the insulating floor bricks also have the advantage of reflecting the insulation performance in real time as the environment changes, avoiding the situation where the geographical status is unclear in special weather conditions. The position sensor is also connected to the signal receiving end of the computer through a wireless communication module. When the temperature and humidity sensors in the corresponding area feed back signals to the computer, the position sensors in this area also feed back signals to the computer, so that the computer can know that the asphalt insulating bricks in the corresponding area have low resistivity. During construction, avoid this area to ensure safe construction, thereby improving construction efficiency. When the asphalt insulating bricks 1 are overlapped, the two sets of pull rods 18 can be pushed forward and backward respectively. The plate 20 is made of a soft material, so that the pulling plate can pull the placement plate 20 out from the inside of the opening 14, so that by utilizing the movement of the placement plate 20 and the pulling rod 18, the temperature and humidity sensor and the position sensor can be pulled out in a vertical form when being pulled out from the inside of the first tower seat 2 and the second tower seat 6. Since the extrusion seat 25 squeezes one side of the temperature and humidity sensor and the position sensor, and the first baffle plate 21 and the second baffle plate 22 can block one side of the temperature and humidity sensor and the position sensor, the temperature and humidity sensor and the position sensor can be placed in other asphalt insulating bricks 1 for use again after use, thereby reducing the production cost of the asphalt insulating bricks 1.

[0034] Embodiment 2:

[0035] A method for preparing asphalt insulating bricks, comprising the following steps:

[0036] S1. Prepared by using recycled asphalt mixture as raw material, the mass fraction of each component in the recycled asphalt mixture is: 35% to 40% of RAP with a particle size of 0-5mm, 20% to 25% of RAP with a particle size of 5-10mm, 25% to 30% of RAP with a particle size of 10-30mm, 1% to 2% of mineral powder, 0.5% to 2% of cement, 2% to 3% of emulsified asphalt, 4% to 5% of water, 3% to 5% of high boiling point solvent oil, and 2% to 4% of liquid paraffin. Among them, the admixture is waste rock wool fiber, and the mass fraction of waste rock wool fiber accounts for 2% to 3%. The aggregate grading adopts AC-13 type. A variety of raw materials are mixed to prepare asphalt insulating bricks 1. The use of recycled asphalt mixture to prepare asphalt insulating bricks not only realizes the recycling and reuse of aged asphalt mixtures, but also meets the carbon reduction target. When producing asphalt insulating bricks, adding high boiling point solvent oil and liquid paraffin can help reduce the brittleness of asphalt and avoid cracking in cold weather.

[0037] When in use, the temperature and humidity sensor and the position sensor are placed in the placement groove 7 inside the first tower seat 2 and the second tower seat 6 respectively. The temperature and humidity sensor can accurately detect the real-time temperature and humidity in the floor bricks, thereby preparing to know the resistance value of the floor bricks, providing a safe construction environment for the staff. In addition, the insulating floor bricks also have the advantage of reflecting the insulation performance in real time with environmental changes, avoiding the situation where the geographical status is unclear in special weather. The position sensor is also connected to the signal receiving end of the computer through the wireless communication module. When the temperature and humidity sensors in the corresponding area feed back signals to the computer, the position sensor in this area also feeds back signals. The signal is fed to the computer, so that the computer can know that the asphalt insulating bricks in the corresponding area have low resistivity. During construction, the construction can be carried out safely by avoiding this area, thereby improving the construction efficiency. When multiple asphalt insulating bricks 1 are overlapped, the embedding plate 3 can be embedded into the interior of the first tower seat 2 and the second tower seat 6, so that the arc ball 26 can be embedded into the interior of the slide groove 5 to guide the embedding of the embedding plate 3, and at the same time, the embedding speed of the embedding plate 3 can be increased. When the embedding plate 3 is embedded into the interior of the first tower seat 2 and the second tower seat 6, the elasticity of the first spring 9 is used to make the embedding roller 12 squeezed by the embedding plate 3, and the first spring 9 can be used to change the embedding roller 1 2, when the embedded plate 3 continues to extend into the interior of the first tower seat 2 and the second tower seat 6, the groove 4 can correspond to the embedded roller 12, so that the embedded roller 12 can be embedded in the interior of the groove 4 to stop squeezing the first spring 9, so that the first spring 9 can rebound in the opposite direction to push the embedded roller 12 to one side and be connected to the interior of the groove 4 to fix the embedded plate 3, so that the asphalt insulating brick 1 can be overlapped and used, and the rubber adhesive can also be used to bond the embedded plate 3 to the first tower seat 2 and the second tower seat 6, so as to achieve the purpose of independently taking out and replacing a single insulating brick in an area without removing all the insulating bricks. After the connection is completed, the two sets of pull rods 18 can be pushed forward and backward respectively. Since the placement plate 20 is made of soft material, the pull plate can pull the placement plate 20 out from the inside of the opening 14, so that by utilizing the movement of the placement plate 20 and the pull rod 18, the temperature and humidity sensor and the position sensor can be pulled out from the inside of the first tower connection seat 2 and the second tower connection seat 6. The placement plate 20 can be pulled out in a vertical form. Since the extrusion seat 25 squeezes one side of the temperature and humidity sensor and the position sensor, and the first baffle plate 21 and the second baffle plate 22 can block one side of the temperature and humidity sensor and the position sensor, they can be placed in other asphalt insulating bricks 1 for use again.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An asphalt insulating brick, comprising an asphalt insulating brick (1), characterized in that: The front surface of the asphalt insulating brick (1) is bonded with a first tower connection seat (2), and the rear surface of the asphalt insulating brick (1) is bonded with a second tower connection seat (6); the surfaces of the first tower connection seat (2) and the second tower connection seat (6) are both fixedly connected with a mosaic plate (3), both sides of the mosaic plate (3) are provided with grooves (4), and the front surface of the mosaic plate (3) is provided with a slide groove (5); The first tower seat (2) and the second tower seat (6) are both fixedly connected with a first spring (9) inside, the side end of the first spring (9) is fixedly connected with a fixing plate (8), the side surface of the fixing plate (8) is fixedly connected with a connecting plate (10), the rear surface of the connecting plate (10) is movably connected with a rotating rod (13) through a bearing, the side surface of the rotating rod (13) is sleeved with an engaging roller (12), and the engaging roller (12) is engaged with the groove (4), and the side surface of the engaging roller (12) is surrounded by a rubber sleeve (11).

2. The asphalt insulating brick according to claim 1, characterized in that: The first tower seat (2) and the second tower seat (6) are provided with placement grooves (7) inside, and the inner walls of the first tower seat (2) and the second tower seat (6) are fixedly connected with arc balls (26), and the arc balls (26) are slidably connected with the sliding grooves (5).

3. The asphalt insulating brick according to claim 1, characterized in that: The front surface of the first tower seat (2) and the rear surface of the second tower seat (6) are both provided with openings (14), and the openings (14) correspond to the placement grooves (7).

4. The asphalt insulating brick according to claim 1, characterized in that: A placement plate (20) is slidably connected inside the opening (14), and the placement plate (20) is engaged and connected with the placement groove (7), and a friction pad (23) is provided on the upper surface of the placement plate (20).

5. The asphalt insulating brick according to claim 4, characterized in that: A first baffle (21) is fixedly connected to the upper surface of the placement plate (20), and a second baffle (22) is fixedly connected to the upper surface of the first baffle (21).

6. The asphalt insulating brick according to claim 5, characterized in that: A second spring (24) is fixedly connected to the lower surface of the second baffle plate (22), and a pressing seat (25) is fixedly connected to the lower surface of the second spring (24) away from the second baffle plate (22).

7. The asphalt insulating brick according to claim 4, characterized in that: Both sides of the placement plate (20) are movably connected to movable plates (19) via bearings, and the front surface of the movable plate (19) is fixedly connected to a fixed seat (15).

8. The asphalt insulating brick according to claim 7, characterized in that: The upper surface of the fixed seat (15) is fixedly connected to a bearing plate (17), the side surface of the bearing plate (17) is fixedly connected to a connecting rod, the side surface of the connecting rod is sleeved with a movable sleeve (16), and the upper surface of the movable sleeve (16) is fixedly connected to a pull rod (18).

9. The asphalt insulating brick according to claim 2, characterized in that: The placement groove (7) is used to place a temperature and humidity sensor and a position sensor. The interlocking plate (3) and the first tower seat (2) and the second tower seat (6) can be reinforced using a rubber adhesive. The first tower seat (2) and the second tower seat (6) are both made of rubber.

10. A method for preparing asphalt insulating bricks according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1. Recycled asphalt mixture is used as raw material for preparation. The mass fraction of each component in the recycled asphalt mixture is: 35% to 40% of RAP with a particle size of 0-5 mm, 20% to 25% of RAP with a particle size of 5-10 mm, 25% to 30% of RAP with a particle size of 10-30 mm, 1% to 2% of mineral powder, 0.5% to 2% of cement, 2% to 3% of emulsified asphalt, 4% to 5% of water, 3% to 5% of high boiling point solvent oil, and 2% to 4% of liquid paraffin. Among them, the admixture is waste rock wool fiber, and the mass fraction of waste rock wool fiber accounts for 2% to 3%. The aggregate grading adopts AC-13 type. Multiple raw materials are mixed to prepare asphalt insulating bricks (1).

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