A device for testing the crack resistance of a basalt fiber asphalt mixture

Abstract

The utility model relates to engineering material test technical field, concretely is a kind of basalt fiber asphalt mixture's anti-cracking performance testing device, including vehicle body, the vehicle body top is fixed with test box, the test box left end is equipped with liquid nitrogen tank, the test box right end is equipped with water tank, the test box inside is equipped with positioning rail, the positioning rail bottom is equipped with pressure rod, the pressure rod bottom is equipped with force block, the test box inside is equipped with atomizing nozzle, the test box inside is also equipped with several clamping rods, each clamping rod is equipped with clamping plate, the vehicle body top is also equipped with test block, the test block outside is equipped with heating wire;The utility model can prevent the splashing of debris while facilitating staff monitoring by box door, hose is telescopic, to facilitate atomizing nozzle reversing, to ensure humidification effect, heating wire is used to heat test box, to change the temperature inside test box, to simulate different environment, to improve test range.

Description

Technical Field

[0001] This utility model belongs to the field of engineering material testing technology, specifically a device for testing the crack resistance of basalt fiber asphalt mixture. Background Technology

[0002] Basalt fiber, as a green and novel mineral fiber, possesses advantages such as high strength, high temperature resistance, acid and alkali resistance, and good physical and chemical stability. Adding it to asphalt mixtures can adsorb asphalt, toughen, inhibit cracking, and reinforce the mixture, significantly improving its high-temperature stability, water stability, and low-temperature crack resistance, making it a promising material for road engineering. Crack resistance is one of the key performance indicators of basalt fiber asphalt mixtures; accurate testing of its crack resistance is crucial for evaluating mixture quality, optimizing mix design, and ensuring the quality of road engineering projects.

[0003] However, existing testing methods are usually conducted manually, resulting in low testing efficiency and accuracy. Furthermore, existing testing devices can mostly only simulate one scenario, leading to low accuracy. To address these issues, this invention designs a crack resistance testing device for basalt fiber asphalt mixtures. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a crack resistance testing device for basalt fiber asphalt mixture, which effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a crack resistance testing device for basalt fiber asphalt mixture, comprising a vehicle body, a test box fixed to the top of the vehicle body, a door of the test box fastened to the top of the test box by bolts, a liquid nitrogen tank at the left end of the test box, a water tank at the right end of the test box, a liquid nitrogen tube fixed to the outside of the test box, a front-to-back moving rod at the front end of the test box, a positioning rail fixed to the rear end of the front-to-back moving rod, a pressure rod at the bottom of the positioning rail, a contact rod at the bottom of the pressure rod, force blocks fixed at both ends of the contact rod, a flexible hose inside the test box, an atomizing nozzle fixed to the right end of the flexible hose, the flexible hose being fixedly connected to the water tank through a water supply pipe, several clamping rods inside the test box, a clamping block fixed to the inner side of each clamping rod, a clamping plate fixed to the top of each clamping block, a support block fixed to the top of the vehicle body, a test block tightly fitted to the top of the support block, and a heating wire on the outside of the test block.

[0006] Preferably, a number of stabilizing bars are fixed to the bottom of the vehicle body, and a caster wheel is slidably connected to the bottom of each stabilizing bar. A controller is fixed to the top of the vehicle body, and a power supply is fixed to the right end of the controller. A handrail is also fixed to the top of the vehicle body, and a temperature and humidity sensor is fixed to the front end of the test box.

[0007] Preferably, a liquid inlet pump is fixed to the left end of the test chamber, and the left end of the liquid inlet pump is fixedly connected to the liquid nitrogen tank through a liquid inlet pipe. The right end of the liquid inlet pipe is fixedly connected to the liquid nitrogen pipe, and a liquid inlet valve is fixedly fixed to the outside of the liquid inlet pipe. An outlet pipe is provided at the rear end of the liquid inlet pipe and is fixedly connected to the liquid nitrogen tank. The right end of the outlet pipe is fixedly connected to the liquid nitrogen pipe, and an outlet valve is fixedly fixed to the outside of the outlet pipe.

[0008] Preferably, a water outlet valve is fixed to the right end of the test box, and a water pump is fixedly connected to the water supply pipe at the left end of the water tank. A water supply valve is provided at the left end of the water pump. A connecting plate is fixed to the top of the atomizing nozzle, and a nozzle reversing motor is rotatably connected to the top of the connecting plate. The nozzle reversing motor is fixedly connected to the test box through a fixing rod. Several clamping rails are provided inside the vehicle body. Each clamping rail is slidably connected to the clamping block inside it. A clamping pressure sensor is fixed inside each clamping plate.

[0009] Preferably, the test box is fixedly connected to the front and rear moving rods via positioning blocks. Two moving rails are also fixed inside the test box, and these moving rails are slidably connected to the positioning rails. Moving wheels are slidably connected inside the positioning rails. A positioning plate is slidably connected to the bottom of the positioning rails, and the positioning plate is rotatably connected to the rotating shaft of the moving wheels. A moving motor is fixed to the front end of the positioning plate, and the moving motor is rotatably connected to the moving wheels at its rear end. The positioning plate is fixedly connected to the pressure rod at its bottom, and a reversing motor is fixed to the bottom of the pressure rod. The reversing motor is rotatably connected to the proximity rod at its bottom. A line scan camera is fixed to the left end of the proximity rod. A pressure sensor is fixed to the bottom of each force-applying block. Several connecting strips are fixed to the outside of the support block, and the top of each connecting strip is fixedly connected to the heating wire.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This invention features a door that prevents debris from splashing while facilitating monitoring by staff. The retractable hose allows for easy reversal of the atomizing nozzle, ensuring effective humidification. A heating wire heats the test chamber, altering the internal temperature to simulate different environments, thus expanding the testing range and ensuring efficiency. The inlet pump and valve work together to deliver liquid nitrogen from the tank to the liquid nitrogen tube, and then the liquid nitrogen flows back to the tank via the outlet valve, cooling the nitrogen and ensuring testing accuracy.

[0011] This invention utilizes a telescopic movement rod to move the positioning rail, which in turn drives the positioning plate to rotate the moving wheels, thus moving the positioning plate along the positioning rail and ensuring test accuracy. Simultaneously, the water pump and water valve deliver clean water from the tank to the flexible hose via a water pipe, which is then sprayed through the atomizing nozzle to humidify the test chamber, further expanding the testing range. Furthermore, the nozzle reversing motor drives the connecting plate to rotate, thereby rotating the atomizing nozzle and further ensuring the humidification effect.

[0012] This invention utilizes the extension and retraction of a pressure rod to raise and lower a proximity rod. A reversing motor further drives the proximity rod to rotate. Simultaneously, the extension and retraction of the proximity rod moves the force-applying block, ensuring test accuracy. The extension and retraction of a clamping rod moves the clamping block, clamping the test block while applying a lateral force, thus ensuring test accuracy. A line-scan camera achieves high-resolution, high-speed imaging of the crack through line-by-line scanning and transmits the data to the controller, thereby measuring the crack and ensuring measurement accuracy. Attached Figure Description

[0013] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0014] In the attached diagram: Figure 1 This is a schematic diagram of the overall design of this utility model; Figure 2 This is a top view of the entire utility model; Figure 3 This is a schematic diagram of the left end of the test box of this utility model; Figure 4 This is a schematic diagram of the right end of the test box of this utility model; Figure 5 This is a schematic diagram of the interior of the test chamber of this utility model; Figure 6 This is a cross-sectional view of the test box of this utility model; Figure 7 This is a schematic diagram of the inside of the clamping rod of this utility model; Figure 8 This is a schematic diagram of the bottom of the rod of this utility model; Figure 9 This is a schematic diagram of the bottom of the force-applying block of this utility model.

[0015] In the diagram: 1-Vehicle body; 2-Stabilizer bar; 3-Liquid nitrogen tank; 4-Water tank; 5-Test box; 6-Front and rear moving rod; 7-Pressure rod; 8-Clamping rod; 101-Controller; 102-Power supply; 103-Handrail; 201-Wheel caster; 301-Inlet pump; 302-Inlet pipe; 303-Inlet valve; 304-Liquid nitrogen pipe; 305-Outlet valve; 306-Outlet pipe; 401-Water pump; 402-Water supply valve; 403-Water supply pipe; 404-Outlet valve; 405-Hose; 406-Atomizing nozzle; 407-Nozzle reversing motor; 4 08-Connecting plate; 501-Box door; 502-Temperature and humidity sensor; 503-Heating wire; 504-Test block; 505-Connecting strip; 506-Support block; 601-Positioning block; 602-Moving rail; 603-Positioning rail; 604-Moving wheel; 605-Moving motor; 606-Positioning plate; 701-Reversing motor; 702-Proximity rod; 703-Line scan camera; 704-Force block; 705-Force block pressure sensor; 801-Clamping rail; 802-Clamping block; 803-Clamping plate; 804-Clamping pressure sensor. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] Example 1, by Figures 1-2 , Figures 5-6The present invention includes a vehicle body 1, which is made of alloy material and supports the entire device. A test chamber 5, also made of alloy material, is fixed to the top of the vehicle body 1 for easy testing. A door 501, made of transparent material, is bolted to the top of the test chamber 5 to prevent debris from splashing while facilitating monitoring by personnel. A liquid nitrogen tank 3 is located at the left end of the test chamber 5 for holding the required liquid nitrogen. A water tank 4 is located at the right end of the test chamber 5 for holding clean water. A liquid nitrogen pipe 304 is fixed to the outside of the test chamber 5 to reduce the temperature of the test chamber 5. The test box 5 has a front-to-back moving rod 6 at its front end, which is telescopic and can move the positioning rail 603. The positioning rail 603, made of alloy material, is fixed to the rear end of the moving rod 6 and is used to position the moving wheel 604. A pressure rod 7 is provided at the bottom of the positioning rail 603, which is telescopic and can raise and lower the proximity rod 702. A proximity rod 702 is also provided at the bottom of the pressure rod 7, which is telescopic and can move the force application block 704, thus ensuring the accuracy of the test. Force application blocks 704, made of alloy material, are fixed at both ends of the proximity rod 702. Made of a material, the force-applying block 704 is used to position the force-applying block pressure sensor 705. The test chamber 5 has a flexible hose 405 inside, which is retractable to facilitate the reversal of the atomizing nozzle 406, thus ensuring humidification. An atomizing nozzle 406 is fixed to the right end of the hose 405, which sprays water mist to ensure humidification. The hose 405 is fixedly connected to the water tank 4 via a water supply pipe 403. The test chamber 5 also has several clamping rods 8 inside, which are retractable, allowing the clamping blocks 802 to move. Each clamping rod 8 has a clamping block 802 fixed inside, and the clamping blocks 802 are made of alloy material. Block 802 is used to position the clamping plate 803. Each clamping block 802 has a clamping plate 803 fixed on its top. The clamping plate 803 is made of alloy material and is used to position the clamping pressure sensor 804. A support block 506 is also fixed on the top of the vehicle body 1. The support block 506 is made of alloy material and is used to support the test block 504. The test block 504 is tightly attached to the top of the support block 506. A heating wire 503 is provided on the outside of the test block 504. The heating wire 503 is used to heat the test chamber 5, thereby changing the internal temperature of the test chamber 5 to simulate different environments, thereby improving the test range and ensuring test efficiency.

[0018] Example 2, based on Example 1, combined with... Figures 3-4 、 Figures 7-9The vehicle body 1 has several stabilizing rods 2 fixed to its bottom. These stabilizing rods 2 are made of alloy material and are used to position the casters 201. Each stabilizing rod 2 has a slidably connected caster 201 at its bottom, facilitating the movement of the entire device. A controller 101 is fixed to the top of the vehicle body 1, controlling the entire device. A power supply 102 is fixed to the right end of the controller 101, providing the necessary electrical energy to the entire device. A handrail 103 is also fixed to the top of the vehicle body 1, facilitating the movement of the entire device by personnel. A temperature and humidity sensor 502 is fixed to the front end of the test chamber 5, monitoring the temperature and humidity of the test chamber. The internal temperature and humidity of chamber 5 are monitored. A liquid inlet pump 301 is fixed to the left end of chamber 5. The left end of the liquid inlet pump 301 is fixedly connected to the liquid nitrogen tank 3 via an inlet pipe 302. The right end of the inlet pipe 302 is fixedly connected to the liquid nitrogen pipe 304. An inlet valve 303 is also fixed to the outside of the inlet pipe 302. The liquid inlet pump 301 and the inlet valve 303 work together to transport liquid nitrogen from the liquid nitrogen tank 3 to the liquid nitrogen pipe 304. The liquid nitrogen then flows back into the liquid nitrogen tank 3 via the outlet pipe 306 and the outlet valve 305, thus completing the cooling process and ensuring the accuracy of the test. An outlet pipe 306 is located at the rear end of the inlet pipe 302 and is fixedly connected to the liquid nitrogen tank 3. The right end of the outlet pipe 306... Fixedly connected to the liquid nitrogen tube 304, the outlet pipe 306 is externally fixed with an outlet valve 305. A water outlet valve 404 is fixed to the right end of the test chamber 5, facilitating the discharge of water from inside the test chamber 5. A water pump 401 is also fixedly connected to the water supply pipe 403 at the left end of the water tank 4. A water supply valve 402 is located at the left end of the water pump 401. The water pump 401 and the water supply valve 402 work together to deliver clean water from inside the water tank 4 to the hose 405, which then sprays it out through the atomizing nozzle 406. A connecting plate 408, made of alloy material, is fixed to the top of the atomizing nozzle 406. The connecting plate 408 is used to position the atomizing nozzle 406. A nozzle reversing motor 407 is rotatably connected to the top of the connecting plate 408. The nozzle reversing motor 407 can drive the connecting plate 408 to rotate. The nozzle reversing motor 407 is fixedly connected to the test box 5 via a fixing rod. The vehicle body 1 has several clamping rails 801 inside, which are used to position the clamping blocks 802. Each clamping rail 801 is slidably connected to the clamping block 802 inside it. Each clamping plate 803 has a clamping pressure sensor 804 fixed inside it, which is used to monitor the pressure on the test block 504. The test box 5 is fixedly connected to the front and rear moving rods 6 via positioning blocks 601. Two moving rails 602 are also fixed inside the test box 5.The movable rail 602 is used to position the positioning rail 603. The movable rail 602 is slidably connected to the positioning rail 603. A movable wheel 604 is slidably connected inside the positioning rail 603. The movable wheel 604 can drive the positioning plate 606 to move along the positioning rail 603 by rotation. The positioning plate 606 is slidably connected to the bottom of the positioning rail 603. The positioning plate 606 is used to position the pressure rod 7. The positioning plate 606 is rotatably connected to the rotating shaft of the movable wheel 604. A movable motor 605 is fixed to the front end of the positioning plate 606. The movable motor 605 can drive the movable wheel 604 to rotate. The movable motor 605 is rotatably connected to the movable wheel 604 at its rear end. The positioning plate 606 is fixedly connected to the pressure rod 7 at its bottom. A reversing motor 7 is fixed to the bottom of the pressure rod 7. 01. The reversing motor 701 can drive the proximity rod 702 to rotate. The reversing motor 701 is rotatably connected to the proximity rod 702 at its bottom. A line scan camera 703 is fixed to the left end of the proximity rod 702. The line scan camera 703 achieves high-resolution, high-speed imaging of the crack by monitoring line-by-line scanning and transmits the data to the controller 101, thereby achieving the purpose of measuring the crack and ensuring measurement accuracy. Each force application block 704 has a force application block pressure sensor 705 fixed to its bottom. The force application block pressure sensor 705 is used to monitor the pressure on the test block 504. Several connecting strips 505 are fixed to the outside of the support block 506. The connecting strips 505 are used to support the test block 504. The top of each connecting strip 505 is fixedly connected to the heating wire 503. When using this device, the operator pushes the handle 103 to move the entire device. When the device reaches the desired position, the operator locks the casters 201. Then, the operator opens the door 501 and places the test block 504 on top of the support block 506. The controller 101 then controls several clamping rods 8 to extend, thereby moving the clamping block 802 and the clamping plate 803, causing the clamping pressure sensor 804 to come into close contact with the test block 504, thus clamping the test block 504. The operator then locks the door 501 with bolts. Finally, the controller 101 controls the extension and retraction of the front and rear moving rods 6 to move the device. The positioning rail 603 moves, and the moving motor 605 drives the moving wheel 604 to rotate, thereby driving the positioning plate 606 to move along the positioning rail 603. This allows the line scan camera 703 to reach the top of the test block 504. At this time, the controller 101 controls the clamping rod 8 to extend, thereby pressing the test block 504. This allows the line scan camera 703 to achieve high-resolution, high-speed imaging of the crack by monitoring line-by-line scanning, and transmits the data to the controller 101, thus achieving the purpose of measuring the crack and ensuring measurement accuracy. This simulates the situation where the test block 504 is subjected to lateral force and cracks are generated. Furthermore, the controller 101 controls the reversing motor 701 to drive... The proximity rod 702 reverses direction, and the controller 101 further controls the extension and retraction of the proximity rod 702, thereby moving the force application block 704. At this time, the controller 101 controls the extension of the pressure application rod 7, thereby causing the proximity rod 702 to descend, thus applying a vertical force to the test block 504, thereby simulating the situation where the test block 504 cracks due to pressure at different positions. Furthermore, the controller 101 controls the liquid inlet pump 301 and the liquid inlet valve 303 to transport liquid nitrogen inside the liquid nitrogen tank 3 to the liquid nitrogen pipe 304 through the liquid inlet pipe 302, and then return it to the liquid nitrogen tank 3 through the liquid outlet valve 305 and the liquid outlet pipe 306, thereby completing the cooling work and simulating a low temperature environment. In the testing process, the controller 101 further controls the heating wire 503 to raise the internal temperature of the test chamber 5, thereby simulating testing under high-temperature conditions. At this time, the temperature and humidity sensor 502 can monitor the internal temperature and humidity of the test chamber 5. Furthermore, the controller 101 controls the water pump 401 and the water supply valve 402 to transport clean water from the water tank 4 to the hose 405 through the water supply pipe 403, and then spray it out through the atomizing nozzle 406. Furthermore, the nozzle reversing motor 407 can drive the atomizing nozzle 406 to rotate, thereby humidifying the inside of the test chamber 5, thus simulating testing under different humidity conditions, thereby ensuring the accuracy of the test and ensuring the test effect.

[0019] The working process of this utility model is as follows: When using this device, the operator pushes the handle 103 to move the entire device. When the entire device moves to the desired position, the operator locks the casters 201. At this time, the operator opens the door 501 and places the test block 504 on top of the support block 506. At this time, the controller 101 controls several clamping rods 8 to extend, thereby driving the clamping block 802 to move, which in turn drives the clamping plate 803 to move, so that the clamping pressure sensor 804 is in close contact with the test block 504, thereby clamping the test block 504. The operator then locks the door 501 with bolts, and the controller 101 further controls the... The extension and retraction of the forward and backward moving rod 6 can move the positioning rail 603. Furthermore, the moving motor 605 can drive the moving wheel 604 to rotate, thereby moving the positioning plate 606 along the positioning rail 603. This allows the line scan camera 703 to reach the top of the test block 504. At this time, the controller 101 controls the clamping rod 8 to extend, thereby pressing the test block 504. This allows the line scan camera 703 to achieve high-resolution, high-speed imaging of the crack through line-by-line scanning and transmit the data to the controller 101, thus achieving the purpose of crack measurement and ensuring measurement accuracy. This simulates the situation where the test block 504 is subjected to lateral force and cracks are generated. Furthermore, the controller 101 controls the... The reversing motor 701 can drive the proximity rod 702 to reverse direction. Furthermore, the controller 101 controls the extension and retraction of the proximity rod 702, thereby moving the force-applying block 704. At this time, the controller 101 controls the extension of the pressure rod 7, thereby causing the proximity rod 702 to descend, thus applying a vertical force to the test block 504, simulating the situation where the test block 504 cracks due to pressure at different locations. Furthermore, the controller 101 controls the inlet pump 301 and the inlet valve 303 to transport liquid nitrogen from inside the liquid nitrogen tank 3 to the liquid nitrogen pipe 304 through the inlet pipe 302, and then back to the liquid nitrogen tank 3 through the outlet valve 305 and the outlet pipe 306, thereby completing the cooling process. This allows for the simulation of testing under low-temperature conditions. Furthermore, the controller 101 controls the heating wire 503 to raise the internal temperature of the test chamber 5, thus simulating testing under high-temperature conditions. At this time, the temperature and humidity sensor 502 monitors the internal temperature and humidity of the test chamber 5. The controller 101 also controls the water pump 401 and the water valve 402 to deliver clean water from the water tank 4 to the hose 405 via the water pipe 403, which then sprays it out through the atomizing nozzle 406. The nozzle reversing motor 407 drives the atomizing nozzle 406 in a circular motion, thereby humidifying the inside of the test chamber 5. This simulates testing under different humidity conditions, ensuring the accuracy of the test.This ensures the effectiveness of the test.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the crack resistance of basalt fiber asphalt mixture, characterized in that: The test box (5) is fixed to the top of the vehicle body (1). The test box (5) has a door (501) fastened to the top of the test box (5) by bolts. The test box (5) has a liquid nitrogen tank (3) at the left end and a water tank (4) at the right end. The test box (5) has a liquid nitrogen tube (304) fixed to the outside of the test box (5). The test box (5) has a front and rear moving rod (6) at the front end and a positioning rail (603) fixed at the rear end. The positioning rail (603) has a pressure rod (7) at the bottom and a proximity rod (702) at the bottom. The proximity rod (702) has force blocks (704) fixed at both ends. The test box (5) is equipped with a hose (405) inside. The right end of the hose (405) is fixed with an atomizing nozzle (406). The hose (405) is fixedly connected to the water tank (4) through a water supply pipe (403). The test box (5) is also equipped with several clamping rods (8). Each clamping rod (8) is fixed with a clamping block (802) on its inner side. Each clamping block (802) is fixed with a clamping plate (803) on its top. The top of the vehicle body (1) is also fixed with a support block (506). The top of the support block (506) is tightly fitted with a test block (504). The test block (504) is equipped with a heating wire (503) on its outside.

2. The crack resistance testing device for basalt fiber asphalt mixture according to claim 1, characterized in that: The bottom of the vehicle body (1) is fixed with several stabilizer bars (2), and each stabilizer bar (2) is slidably connected to a caster wheel (201) at the bottom. The top of the vehicle body (1) is fixed with a controller (101), and the right end of the controller (101) is fixed with a power supply (102). The top of the vehicle body (1) is also fixed with a handrail (103), and the front end of the test box (5) is fixed with a temperature and humidity sensor (502).

3. The crack resistance testing device for basalt fiber asphalt mixture according to claim 2, characterized in that: The test chamber (5) is fixed with a liquid inlet pump (301) at the left end. The left end of the liquid inlet pump (301) is fixedly connected to the liquid nitrogen tank (3) through a liquid inlet pipe (302). The right end of the liquid inlet pipe (302) is fixedly connected to the liquid nitrogen pipe (304). A liquid inlet valve (303) is also fixedly fixed outside the liquid inlet pipe (302). A liquid outlet pipe (306) is provided at the rear end of the liquid inlet pipe (302) and is fixedly connected to the liquid nitrogen tank (3). The right end of the liquid outlet pipe (306) is fixedly connected to the liquid nitrogen pipe (304). A liquid outlet valve (305) is fixedly fixed outside the liquid outlet pipe (306).

4. The crack resistance testing device for basalt fiber asphalt mixture according to claim 3, characterized in that: The test box (5) is fixed with a water outlet valve (404) on the right end. The water tank (4) is also provided with a water pump (401) on the left end, which is fixedly connected to the water supply pipe (403). The water pump (401) is provided with a water supply valve (402) on the left end. The atomizing nozzle (406) is fixed with a connecting plate (408) on the top. The connecting plate (408) is rotatably connected with a nozzle reversing motor (407) on the top. The nozzle reversing motor (407) is fixedly connected to the test box (5) through a fixing rod. The vehicle body (1) is provided with several clamping rails (801) inside. Each clamping rail (801) is slidably connected to the clamping block (802) inside it. Each clamping plate (803) is fixed with a clamping pressure sensor (804) inside it.

5. The crack resistance testing device for basalt fiber asphalt mixture according to claim 4, characterized in that: The test box (5) is fixedly connected to the front and rear moving rods (6) via a positioning block (601). Two moving rails (602) are also fixed inside the test box (5). The moving rails (602) are slidably connected to the positioning rails (603). Moving wheels (604) are slidably connected inside the positioning rails (603). A positioning plate (606) is slidably connected to the bottom of the positioning rails (603). The positioning plate (606) is rotatably connected to the rotating shaft of the moving wheels (604). A moving motor (605) is fixed to the front end of the positioning plate (606). The moving motor (605) is connected to the rear end of the moving rod. The moving wheel (604) is rotatably connected, the positioning plate (606) is fixedly connected to the pressure rod (7) at its bottom, the pressure rod (7) is fixedly equipped with a reversing motor (701) at its bottom, the reversing motor (701) is rotatably connected to the proximity rod (702) at its bottom, the proximity rod (702) is fixedly equipped with a line array camera (703) at its left end, each force block (704) is fixedly equipped with a force block pressure sensor (705) at its bottom, and several connecting strips (505) are fixedly equipped on the outside of the support block (506), and the top of each connecting strip (505) is fixedly connected to the heating wire (503).

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