A device and method for testing the bond strength of a basalt fiber composite to a substrate

Abstract

This application provides a device and method for testing the bonding strength of basalt fiber composite material to a substrate, relating to the field of materials testing technology. The device includes a transparent tank with a sealing cap attached to it, and a sample material composed of basalt fiber composite material and a concrete substrate. A fixing frame is fixed to the sealing cap, and a pressure application component and a testing component are respectively arranged within the fixing frame. The pressure application component includes a servo motor longitudinally mounted on the fixing frame, and the testing component includes a thermal imaging monitor located on the outside of the transparent tank. A blower hood with an air intake grille is fixed around the fixing frame, and a surfing component is mounted on the blower hood. Based on simulated seawater and wave surge scenarios, a single-point or multi-point switching pressure application method is used to achieve a comprehensive and accurate test of the bonding strength of the material sample.

Description

Technical Field

[0001] This invention belongs to the field of materials testing technology, and in particular relates to a device and method for testing the bonding strength between basalt fiber composite material and substrate. Background Technology

[0002] In the context of economic globalization and an increasingly complex international environment, coastal and marine engineering projects such as seaports, cross-sea bridges, offshore wind power, and offshore photovoltaics are about to usher in a new construction boom. However, the harsh marine environment poses a severe durability challenge to marine engineering projects that are mainly made of reinforced concrete. Marine engineering projects urgently need new materials and structures with high durability and long lifespan, and basalt fiber composite materials have emerged to meet this need.

[0003] In the existing technology (patent application CN114441342B, entitled "Testing Device for Shear Strength of Room Temperature Slurry Bonded Joint of Refractory Material Specimen"), the convex spherical indenter of the indenter device is suspended on the lower surface of the concave spherical indenter. The convex spherical indenter is allowed to move flexibly within 360° (with a rotation range of less than 5° within the 360° direction) by adjusting the internal hexagonal bolts. This allows the strip-shaped body of the convex spherical indenter to overcome the slight shape deviations caused by the slurry bonding process of the test specimen and adaptively fit tightly against the left specimen block, reducing testing errors. However, in implementing this technical solution, at least the following problems were found in the existing technology: During the bond strength test of material samples composed of basalt fiber composite and concrete substrate, most tests use a single-point pressure method to apply pressure to the joint. This results in the material sample having too few stress points, and consequently, the obtained bond strength values ​​are not comprehensive or accurate enough. Multiple tests are required, which is troublesome and time-consuming. Summary of the Invention

[0004] This application aims to at least address the technical problem in existing technologies that cannot achieve comprehensive and accurate testing of the bonding strength of material samples using single-point or multi-point pressure switching under simulated seawater and surge conditions. To this end, this application proposes a device and method for testing the bonding strength of basalt fiber composite materials to a substrate.

[0005] To achieve the above objectives, the specific technical solution of the present invention is as follows: A bonding strength testing device for basalt fiber composite material and a substrate includes a transparent tank, a sealing cap is snapped onto the transparent tank, and a sample material is snapped into the sealing cap. The sample material is composed of basalt fiber composite material and concrete substrate. The sealing tank cover is fixed with a fixing frame, and a pressure application component and a testing component are respectively installed in the fixing frame. The pressure application component includes a servo motor placed vertically on the fixing frame, and the testing component includes a thermal imaging monitor installed on the outside of the transparent tank. The mounting bracket is fixed with a blower hood with an air intake grille on all four sides, and the blower hood is equipped with a surfing assembly, which includes a surfboard embedded in the transparent container on the side close to the sample material.

[0006] Preferably, the pressure application assembly further includes a first electric push rod fixed to the output shaft of the servo motor via a coupling, and a main spherical gear is fixed on the piston rod of the first electric push rod. A driven spherical gear is provided around the main spherical gear, and a cavity is reserved in the fixing frame for adjusting the height of the driven spherical gear.

[0007] Preferably, the sealing can cover is rotatably equipped with a second electric push rod fixed to the spur gear on all four sides, and a threaded rod is fixed to the bottom of the second electric push rod. A threaded cylinder is threadedly connected to the threaded rod, and a pressing seat for applying pressure to the sample material is provided at the bottom of the threaded cylinder.

[0008] Preferably, the test assembly further includes an annular guide rail formed on the sealing can lid, and an annular slide rotatably inside the annular guide rail. A toothed ring is fixed on the annular slide, and an annular gap is reserved between the fixing frame and the sealing can lid.

[0009] Preferably, the sealing tank cover has a differential gear that rotates alternately with the spur gear, and a connecting piece that slides with the annular gap is fixed on the outer side of the gear ring, and the connecting piece is fixed to the thermal imaging monitor.

[0010] Preferably, the surfing assembly further includes a main bevel gear sleeved on the first electric push rod, and a driven bevel gear is provided around the main bevel gear. A third electric push rod that rotates with the blower shroud is fixed to the outside of the driven bevel gear, and a booster impeller is fixed to the outside of the third electric push rod.

[0011] Preferably, the outer end of the blower shroud is connected to an upper pressurization pipe, and the bottom end of the upper pressurization pipe is connected to a lower pressurization pipe with a check valve through a connecting sleeve thread, and the bottom end of the lower pressurization pipe is connected to a pressurization shroud that is connected to the surfboard cover, and the surfing holes on the surfboard are distributed in an up-and-down inclined state towards the sample material.

[0012] Preferably, waterproof cylinders are fixed around the bottom of the sealing tank cover, and a positioning head is fixed on the piston rod of the waterproof cylinder. Positioning grooves that engage with the positioning heads are opened around the sample material, and a butt joint that engages with the sample material is fixed at the center of the bottom of the sealing tank cover.

[0013] Preferably, the fixing frame is fixed with a lifting lug, and the bottom of the sealing can cover is provided with a sealing groove that engages with the transparent can body. The sealing can cover is fixed with a clamping plate around its perimeter, and the transparent can body is fixed with a clamping seat that engages with the clamping plate around its perimeter. The bottom of the transparent can body is connected to a drain pipe with a one-way valve.

[0014] A method for testing the bond strength between a basalt fiber composite material and a substrate, based on the aforementioned bonding strength testing device for a basalt fiber composite material and a substrate, includes the following steps: Step 1: First, fill the exposed transparent tank with seawater, and then fix the sample material to be tested to the sealing tank cover and clip it to the edge of the transparent tank to form a sealing environment. The added seawater simulates the seawater corrosion scenario for the sample material. Step 2: Control the downward movement of one or more extrusion seats to apply downward pressure to one or more points of the sample material, simulating the single-point or multi-point downward pressure scenario of the sample material. Step 3: Control the thermal imaging monitor to rotate circumferentially and perform thermal imaging monitoring on the sample material under single or multiple pressure conditions to detect the bonding strength at the joint between the basalt fiber composite material and the concrete substrate. Step 4: Control one or more booster impellers on the bevel gears to rotate inside the blower shroud, and use the generated air pressure to simulate the seawater surge scenario on the sample material under pressure test through the surfing holes on the surfboard.

[0015] The bonding strength testing device and method for basalt fiber composite material and substrate of the present invention has the following advantages: 1. The bonding strength test device and method for basalt fiber composite material and substrate, through the pressure application component, based on the stroke adjustment of the main sprocket by the first electric push rod, and the meshing adjustment of the main sprocket and driven sprocket by one or more second electric push rods, adopts a single-point or multi-point force application method to achieve an effective pressure effect on the sample material, which is more reasonable than the traditional rigid pressure application method.

[0016] 2. The bonding strength test device and method for basalt fiber composite material and substrate, through the test components, based on the meshing stroke adjustment of the main spherical gear and four sets of differential gears by the first electric push rod, adopts a circumferential rotation method to achieve a comprehensive and accurate thermal imaging test effect on the bonding strength of the sample material under single or multi-point pressure, without the need for multiple tests, which is faster and more efficient.

[0017] 3. The bonding strength testing device and method for basalt fiber composite material and substrate uses a surfing component to simulate seawater corrosion on the sample material by injecting seawater. Based on the meshing adjustment of the main bevel gear and the driven bevel gear by one or more third electric push rods, a single-point or multi-point pressurization method is used to realize the seawater surge scenario on the sample material under pressure and testing conditions, which is closer to reality and further improves the testing accuracy of the sample material. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a front view of the structure of a bonding strength testing device and method for basalt fiber composite material and substrate according to the present invention. Figure 2 This is a bottom view of the sealing can lid structure of the present invention; Figure 3 This is a top view of the transparent tank structure of the present invention; Figure 4 This is an exploded bottom view of the sealing can lid and sample material structure of the present invention; Figure 5 This is a partial top view of the structure of a bonding strength testing device and method for basalt fiber composite material and substrate according to the present invention. Figure 6 This is a top view of the pressure application component structure of the present invention; Figure 7 This is a bottom view of the test component structure of the present invention; Figure 8 This is a top view of the surfing component structure of the present invention; Figure 9 This is a partial side cross-sectional view of the blower shroud and surfing assembly structure of the present invention; Figure 10 This is a partial exploded view of the surf component structure of the present invention.

[0020] Explanation of markings in the diagram: 1. Transparent tank; 2. Sealing lid; 3. Sample material; 4. Fixing frame; 51. Servo motor; 52. First electric push rod; 53. Main sprocket; 54. Driven sprocket; 55. Second electric push rod; 56. Threaded rod; 57. Threaded cylinder; 58. Extrusion seat; 61. Annular guide rail; 62. Annular slide; 63. Differential gear; 64. Gear ring; 65. Connecting component; 66. Thermal forming. 7. Monitoring instrument; 81. Blower shroud; 82. Main bevel gear; 83. Driven bevel gear; 84. Third electric push rod; 85. Booster impeller; 86. Upper booster pipe; 87. Lower booster pipe; 88. Booster cover; 9. Surfboard; 10. Connecting sleeve; 11. Waterproof cylinder; 12. Positioning head; 13. Positioning groove; 14. Connecting joint; 15. Lifting lug; 16. Sealing groove; 17. Card plate; 18. Card seat; 19. Drain pipe. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments: like Figures 1-10 As shown, the present invention provides a bonding strength testing device for basalt fiber composite material and substrate, comprising a transparent tank 1, a sealing tank cover 2 snapped onto the transparent tank 1, and a sample material 3 snapped into the sealing tank cover 2, the sample material 3 being composed of basalt fiber composite material and concrete substrate. Waterproof cylinders 10 are fixed around the bottom of the sealing tank cover 2, and positioning heads 11 are fixed on the piston rods of the waterproof cylinders 10. Positioning grooves 12 that engage with the positioning heads 11 are opened around the sample material 3. The positioning heads 11 are driven by the four waterproof cylinders 10 to engage with the positioning grooves 12 at the head of the sample material 3, thereby fixing the sample material 3 and the sealing tank cover 2. Furthermore, a connector 13 is fixed at the center of the bottom of the sealing can lid 2 to engage with the sample material 3. The connector 13 facilitates the pre-engagement of the sample material 3 and the sealing can lid 2, which is beneficial for subsequent clamping operations.

[0022] The mounting bracket 4 is fixed with a lifting lug 14, and the bottom of the sealing can cover 2 is provided with a sealing groove 15 that engages with the transparent can body 1. The sealing groove 15 is used to seal and tighten the connection between the sealing can cover 2 and the transparent can body 1. The sealing can lid 2 is fixed with a clamping plate 16 on all four sides, and the transparent can body 1 is fixed with a clamping seat 17 that engages with the clamping plate 16 on all four sides. Through the clamping plate 16 and the clamping seat 17, the sealing can lid 2 and the transparent can body 1 are tightly clamped together to form a sealed test environment. The bottom of the transparent tank 1 is connected to drain pipes 18 with one-way valves on all four sides. Seawater is added to the transparent tank 1 before the sealing tank cover 2 is installed, and the sample material 3 fixed on the sealing tank cover 2 is simulated to simulate the seawater corrosion scenario. After the test, the sample material is discharged and recycled through the four drain pipes 18.

[0023] like Figures 1-10 As shown, a fixing frame 4 is fixed on the sealing tank cover 2, and a pressure application component and a testing component are respectively installed in the fixing frame 4. The pressure application component includes a servo motor 51 mounted vertically on the fixing frame 4. The servo motor 51 provides a unified drive source, saving power costs. The pressure application assembly also includes a first electric push rod 52 fixed to the output shaft of the servo motor 51 via a coupling, and a main spur gear 53 is fixed on the piston rod of the first electric push rod 52, and the first electric push rod 52 performs secondary stroke position adjustment on the main spur gear 53. The main sprocket 53 is surrounded by a driven sprocket 54, and the fixed frame 4 has a cavity reserved for height adjustment of the driven sprocket 54, providing sufficient space for the height adjustment stroke of the driven sprocket 54. The sealing tank cover 2 has a second electric push rod 55 fixed to the driven sprocket 54 on all four sides. The meshing stroke of the main sprocket 53 and the driven sprocket 54 can be adjusted to the correct position by using one or more second electric push rods 55. Furthermore, a threaded rod 56 is fixed to the bottom of the second electric push rod 55, and a threaded cylinder 57 is threadedly connected to the threaded rod 56. The bottom of the threaded cylinder 57 is provided with a pressing seat 58 for applying pressure to the sample material 3. Through the threaded cylinder 57 on one or more threaded rods 56, the pressing seat 58 is driven to move downward, applying downward pressure to one or more places of the sample material 3, simulating the single-point or multi-point downward pressure force scenario of the sample material 3.

[0024] like Figures 1-10 As shown, the test assembly includes a thermal imaging monitor 66 installed on the outside of the transparent tank 1. The thermal imaging monitor is used to test the sample material 3 under downward pressure at one or more locations. The sample material 3 under pressure will deform the surrounding material due to the compressive stress generated by the pressure, and generate heat, which is captured and monitored by the thermal imaging monitor 66. At the same time, since the transparent tank 1 is made of tempered glass, the condition of the sample material 3 at the bonding point inside is monitored by visual inspection from the outside of the transparent tank 1. The test assembly also includes an annular guide rail 61 on the sealing can lid 2, and an annular slide 62 rotates inside the annular guide rail 61. A gear ring 64 is fixed on the annular slide 62, and an annular gap is reserved between the fixing frame 4 and the sealing can lid 2. The annular guide rail 61 and the annular slide 62 provide stable support for the circumferential rotation of the gear ring 64, and prevent the gear ring 64 from shaking or tilting due to unstable force. The sealing tank cover 2 has a differential gear 63 that rotates and is interspersed with the driven sprocket 54. The meshing stroke of the main sprocket 53 and the four sets of driven sprockets 54 is adjusted to the correct position through the first electric push rod 52. Furthermore, a connecting piece 65 that slides with the annular gap is fixed on the outer side of the gear ring 64. The connecting piece 65 is fixed to the thermal imaging monitor 66. Using a circumferential rotation method, the gear ring 64 drives the thermal imaging monitor 66 through the connecting piece 65 to surround the transparent tank 1 and perform thermal imaging monitoring on the sample material 3 under single or multiple point pressure, detecting the bonding strength at the joint between the basalt fiber composite material and the concrete substrate, which is more comprehensive and accurate.

[0025] like Figures 1-10 As shown, the frame 4 is fixed with a blower hood 7 with an air intake grille on all four sides, and a surfing component is provided on the blower hood 7. The surfing component includes a surfboard 88 embedded in the transparent tank 1 on the side close to the sample material 3. The surfing holes on the surfboard 88 are distributed in an up-and-down tilt towards the sample material 3 to simulate seawater surge scenes in different directions towards the sample material 3. The surfing assembly also includes a main bevel gear 81 sleeved on the first electric push rod 52, and a driven bevel gear 82 is provided around the main bevel gear 81. A third electric push rod 83 that rotates with the blower shroud 7 is fixed to the outside of the driven bevel gear 82. The meshing stroke of the main bevel gear 81 and the driven bevel gear 82 can be adjusted to the correct position by one or more third electric push rods 83. Furthermore, a booster impeller 84 is fixed on the outside of the third electric push rod 83. Then, one or more bevel gears 82 are engaged to drive the booster impeller 84 to rotate inside the blower hood 7 and generate wind pressure. This provides wind pressure for the sample material 3 in the transparent tank 1 that is under single or multiple point pressure, and provides wind pressure for simulating single or multiple point surge scenarios. The outer end of the blower shroud 7 is connected to an upper booster pipe 85. A PLC control panel is fixed to the outside of one of the upper booster pipes 85 by a fastener. The bottom end of the upper booster pipe 85 is connected to a lower booster pipe 86 with a check valve by a connecting sleeve 9. The connecting sleeve 9 facilitates the threaded connection between the upper booster pipe 85 and the lower booster pipe 86 and also facilitates disassembly and assembly. Furthermore, the bottom end of the lower pressurization pipe 86 is connected to a pressurization shroud 87 that is connected to the surfboard 88. The air pressure generated inside the blower shroud 7 is supplied into the pressurization shroud 87 through the upper pressurization pipe 85 and the lower pressurization pipe 86. Then, through the surfing holes on the surfboard 88, the sample material 3 under pressure test is simulated to simulate the seawater surge scenario, which is closer to reality and further improves the test accuracy of the sample material 3.

[0026] A method for testing the bond strength between basalt fiber composite material and a substrate, comprising the following steps: Step 1: First, add seawater into the exposed transparent tank 1, and insert the head of the sample material 3 to be tested into the connector 13. Then, simultaneously control the four sets of waterproof cylinders 10 to open and drive the four sets of positioning heads 11 to lock into the positioning groove 12 at the head of the sample material 3. After fixing the sample material 3 to be tested with the sealing tank cover 2, the electric hoist uses four sets of lifting lugs 14 to lock the sealing tank cover 2 and the fixed sample material 3 into the transparent tank 1. The sealing groove 15 seals the joint, and the four sets of clamping plates 16 are accurately inserted into the clamping seat 17. At this time, the four upper pressure pipes 85 and the lower pressure pipes 86 are connected, and the connecting sleeves 9 on the four upper pressure pipes 85 are screwed to the threads on the four lower pressure pipes 86 to complete the connection and docking operation of the four upper pressure pipes 85 and the lower pressure pipes 86. Step 2: Next, control the first electric push rod 52 to open and drive the main sprocket 53 to move down. At the same time, according to the test position, control one or four second electric push rods 55 to open, and drive the main sprocket 53 to move up and down. Then, control the servo motor 51 to open and drive the threaded rod 56 on the sprocket 54 to rotate forward through the meshed main sprocket 53. The rotating threaded rod 56 drives the extrusion seat 58 on the threaded cylinder 57 to move down. One or more extrusion seats 58 move down to apply downward pressure to one or more parts of the sample material 3. After the pressure is applied, control the first electric push rod 52, the second electric push rod 55 and the servo motor 51 to close and reset to the initial position. Step 3: Then, control the first electric push rod 52 to reopen and drive the main spur gear 53 to continue moving down until it reaches the meshing part of the four sets of differential gears 63. Then, control the servo motor 51 to open again and drive the four sets of differential gears 63 to rotate synchronously through the meshing main spur gear 53. With the ring guide rail 61 and the ring slide 62 providing rotational support for the gear ring 64, the synchronously rotating four sets of differential gears 63 drive the gear ring 64 to rotate accordingly. The gear ring 64 then drives the thermal imaging monitor 66 to rotate circumferentially along the transparent tank 1 through the connecting piece 65. Subsequently, the circumferentially rotating thermal imaging monitor 66 performs thermal imaging monitoring on the sample material 3 under single or multiple pressure conditions to detect the bonding strength at the joint between the basalt fiber composite material and the concrete substrate. After the thermal imaging monitoring is completed, control the first electric push rod 52 and the servo motor 51 to close and reset to the initial position. Step 4: Finally, first control one or more third electric push rods 83 to open, which will drive the bevel gear 82 to move and engage with the main bevel gear 81. Then, control the servo motor 51 to open again, and drive one or more booster impellers 84 on the bevel gear 82 to rotate inside the blower shroud 7 through the engaged main bevel gear 81. After filtering the external air through the air intake grille, the air is blown into the blower shroud 7 and generates air pressure. Then, the air pressure generated in the blower shroud 7 is supplied to the booster shroud 87 through one or more upper booster pipes 85 and lower booster pipes 86. Then, it reaches the seawater area in the transparent tank 1 through the surf holes on the surfboard 88, which are distributed in an up-and-down inclined state. The seawater surge scene is simulated on the sample material 3 under pressure test, and the seawater simulates the corrosion scene. This process is repeated until the bonding strength of the sample material 3 at the joint is completed.

[0027] It should be noted that the specific models and specifications of the servo motor 51, the first electric push rod 52, the second electric push rod 55, the thermal imaging monitor 66, the third electric push rod 83, and the waterproof cylinder 10 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail.

[0028] The power supply circuits for the servo motor 51, the first electric push rod 52, the second electric push rod 55, the thermal imaging monitor 66, the third electric push rod 83, and the waterproof cylinder 10 are clear to those skilled in the art and will not be described in detail here.

[0029] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A device for testing the bonding strength between basalt fiber composite material and a substrate, comprising a transparent tank (1), characterized in that: The transparent tank (1) is fitted with a sealing tank cover (2), and the sealing tank cover (2) is fitted with a sample material (3), which is composed of basalt fiber composite material and concrete substrate. The sealing can cover (2) is fixed with a fixing frame (4), and a pressure application component and a testing component are respectively provided in the fixing frame (4). The pressure application component includes a servo motor (51) placed vertically on the fixing frame (4), and the testing component includes a thermal imaging monitor (66) set on the outside of the transparent can body (1). The frame (4) is fixed with a blower hood (7) with an air intake grille on all four sides, and a surfing assembly is provided on the blower hood (7). The surfing assembly includes a surfboard (88) embedded in the transparent tank (1) on the side close to the sample material (3).

2. The bonding strength testing device for basalt fiber composite material and substrate according to claim 1, characterized in that: The pressure application assembly also includes a first electric push rod (52) fixed to the output shaft of the servo motor (51) via a coupling, and a main spur gear (53) is fixed on the piston rod of the first electric push rod (52). A slave spur gear (54) is provided around the main spur gear (53), and a cavity is reserved in the fixing frame (4) for height adjustment with the slave spur gear (54).

3. The bonding strength testing device for basalt fiber composite material and substrate according to claim 2, characterized in that: The sealing can cover (2) is rotated around by a second electric push rod (55) fixed to a spur gear (54), and a threaded rod (56) is fixed to the bottom of the second electric push rod (55). A threaded cylinder (57) is threadedly connected to the threaded rod (56), and a pressing seat (58) for applying pressure to the sample material (3) is provided at the bottom of the threaded cylinder (57).

4. The bonding strength testing device for basalt fiber composite material and substrate according to claim 3, characterized in that: The test assembly also includes an annular guide rail (61) opened on the sealing can cover (2), and an annular slide (62) rotates inside the annular guide rail (61). A toothed ring (64) is fixed on the annular slide (62), and an annular gap is reserved between the fixing frame (4) and the sealing can cover (2).

5. The bonding strength testing device for basalt fiber composite material and substrate according to claim 4, characterized in that: The sealing can cover (2) has a differential gear (63) that is interspersed with the spur gear (54) and a connecting piece (65) that slides with the annular gap is fixed on the outside of the gear ring (64). The connecting piece (65) is fixed to the thermal imaging monitor (66).

6. The bonding strength testing device for basalt fiber composite material and substrate according to claim 5, characterized in that: The surfing assembly also includes a main bevel gear (81) sleeved on the first electric push rod (52), and a secondary bevel gear (82) is provided around the main bevel gear (81). A third electric push rod (83) that rotates with the blower shroud (7) is fixed to the outside of the secondary bevel gear (82), and a booster impeller (84) is fixed to the outside of the third electric push rod (83).

7. The bonding strength testing device for basalt fiber composite material and substrate according to claim 6, characterized in that: The outer end of the blower hood (7) is connected to an upper booster pipe (85), and the bottom end of the upper booster pipe (85) is connected to a lower booster pipe (86) with a check valve through a connecting sleeve (9). The bottom end of the lower booster pipe (86) is connected to a booster hood (87) that is connected to the surfboard (88). The surf holes on the surfboard (88) are distributed in an up-and-down inclined state towards the sample material (3).

8. The bonding strength testing device for basalt fiber composite material and substrate according to claim 7, characterized in that: Waterproof cylinders (10) are fixed around the bottom of the sealing can cover (2), and a positioning head (11) is fixed on the piston rod of the waterproof cylinder (10). The sample material (3) is provided with positioning grooves (12) that engage with the positioning head (11) around its perimeter, and a butt joint (13) that engages with the sample material (3) is fixed at the center of the bottom of the sealing can cover (2).

9. The bonding strength testing device for basalt fiber composite material and substrate according to claim 8, characterized in that: The fixing frame (4) is fixed with a lifting lug (14), and the bottom of the sealing can cover (2) is provided with a sealing groove (15) that engages with the transparent can body (1). The sealing can cover (2) is fixed with a clamping plate (16) around its perimeter, and the transparent can body (1) is fixed with a clamping seat (17) that engages with the clamping plate (16) around its perimeter. The bottom of the transparent can body (1) around its perimeter is connected with a drain pipe (18) with a one-way valve.

10. A method for testing the bond strength between a basalt fiber composite and a substrate, comprising a test apparatus for testing the bond strength between a basalt fiber composite and a substrate according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1: First, add seawater into the exposed transparent tank (1), and fix the sample material (3) to be tested to the sealing tank cover (2) and then attach it to the edge of the transparent tank (1) to form a sealing environment. The added seawater simulates the seawater corrosion scenario for the sample material (3). Step 2: Control the single or multiple extrusion seats (58) to move downward and apply downward pressure to one or more points of the sample material (3) to simulate the single or multiple point downward pressure scenario of the sample material (3). Step 3: Control the thermal imaging monitoring instrument (66) to rotate in a circular motion, and perform thermal imaging monitoring on the sample material (3) under single or multiple pressure conditions to detect the bonding strength at the joint between the basalt fiber composite material and the concrete substrate. Step 4: Control one or more booster impellers (84) on the bevel gear (82) to rotate inside the blower shroud (7) and generate wind pressure through the surfing holes on the surfboard (88) to simulate the seawater surge scenario of the sample material (3) under pressure test.

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