A concrete material anti-permeation detection device and detection sensor

Abstract

A kind of concrete material anti-permeation detection device and detection sensor, including detection table, detection disc and the concrete block to be detected, the concrete block to be detected is annular test block, is formed by outer ring test ring and inner circle water retaining ring, the bottom of both is sealed to form annular water tank, and test ring top is higher than water retaining ring, detection table is supported on ground, detection disc is driven on it and rotates by drive motor, and the concrete block to be detected is coaxially arranged on disc, and there is locating assembly in inner circle of middle part, and it is fixed to test block by contact jacking with inner circle, the anti-permeability of multiple thickness concrete block can be detected simultaneously by the device, meet the needs of different engineering parts, simultaneously, the device can effectively shorten detection time, improve detection efficiency, provide more reliable concrete anti-permeability data for engineering construction.

Description

Technical Field

[0001] This invention relates to the field of concrete testing technology, and in particular to a concrete material seepage prevention testing device and testing sensor. Background Technology

[0002] In the field of construction engineering, the impermeability of concrete plays a crucial role in ensuring the durability and safety of structures. This is especially true in water conservancy projects, such as dams and sluices, as well as underground structures like basements and tunnels, which are located in high-water-pressure environments. The impermeability of concrete directly affects the long-term stable operation of the project. If the impermeability of concrete is insufficient, it can easily lead to a series of serious problems. Leakage not only affects the normal use of the building but may also cause internal structural damage due to moisture. Long-term leakage can also cause steel reinforcement to come into contact with water and air, leading to steel corrosion, which in turn weakens the load-bearing capacity of the concrete structure and seriously threatens the safety and service life of the entire structure.

[0003] Traditional methods for testing the permeability of concrete mainly rely on static water pressure tests, with permeability meters being a commonly used device. However, on the one hand, these tests can only simulate static water pressure seepage conditions, while concrete structures in actual engineering projects often experience dynamically changing water pressure. This leads to a certain deviation between the test results and the actual situation, making it impossible to comprehensively and accurately reflect the permeability performance of concrete in real environments. On the other hand, static water pressure tests usually take a long time to complete, from specimen preparation and the testing process to obtaining the final results, which often consumes a lot of time and results in low testing efficiency. In projects with tight schedules, this may affect the project progress.

[0004] Existing molds for concrete impermeability testing are generally designed with a fixed thickness, which can only test concrete blocks of a specific thickness. In actual engineering projects, different parts of the concrete structure may have different thickness requirements, requiring the assessment of the impermeability performance of concrete blocks of various thicknesses. Existing fixed-thickness molds cannot meet this need, making the testing work cumbersome and incomplete, and increasing testing costs and time costs. Summary of the Invention

[0005] The purpose of this invention is to provide a concrete material seepage prevention detection device and detection sensor, which can simultaneously perform seepage prevention detection on concrete blocks of various thicknesses to meet the detection needs of different engineering parts, and can also effectively shorten the detection time and improve the detection efficiency, thereby providing more reliable concrete seepage resistance data support for engineering construction.

[0006] To achieve the above objectives, the present invention provides a concrete material seepage prevention testing device, comprising a testing platform, a testing disc, and a concrete block to be tested. The concrete block to be tested is an annular test block, comprising a test ring on the outer ring and a water-retaining ring on the inner ring. The top of the test ring is higher than the top of the water-retaining ring, and the bottoms of the test ring and the water-retaining ring are sealed to form an annular water-retaining trough. The testing platform is supported on the ground, and the testing disc is rotatably mounted on the testing platform. The testing disc is driven to rotate by a drive motor. The annular concrete block to be tested is coaxially arranged on the testing disc. A positioning component is arranged in the middle of the testing disc, inside the inner ring of the concrete block to be tested. The positioning component contacts and presses against the inner ring of the concrete block to be tested, supporting and fixing the concrete block to be tested.

[0007] In the above embodiments, the thickness of the test ring of the concrete block to be tested decreases sequentially from one side to the other along the circumferential direction, so that the thickness of the test ring changes continuously along the circumferential direction.

[0008] In the above embodiments, the positioning component includes a positioning rod and an electric telescopic rod. The positioning rod is vertically fixed on the detection plate and coaxially arranged with the detection plate. Multiple electric telescopic rods are evenly fixed on the positioning rod with the positioning rod as the center, and the electric telescopic rods are arranged radially along the positioning rod.

[0009] In the above embodiment, an anti-slip block is fixed on the contact end between the telescopic end of the electric telescopic rod and the concrete block to be tested.

[0010] In the above embodiment, the positioning rod is also provided with a water supply assembly, which includes a pull-out telescopic tube fixed radially on the positioning rod. A water supply end is provided on the movable end of the pull-out telescopic tube. In use, the water supply end is positioned above the water tank. A first liquid level sensor and a second liquid level sensor are provided on the water supply end. The first liquid level sensor is located at the bottom of the water supply end, and the second liquid level sensor is located on the side of the water supply end facing the concrete block to be tested. A liquid pump is provided inside the water supply end. A water supply port is also provided on the side of the water supply end facing the concrete block to be tested. The water supply port is connected to the outlet of the liquid pump through a pipeline, and the inlet of the liquid pump is connected to a water source through a liquid supply channel.

[0011] In the above embodiment, an annular sealing ring is installed on the top of the concrete block to be tested. The inner diameter of the sealing ring is smaller than the inner diameter of the concrete block to be tested. A slot matching the size of the test ring of the concrete block to be tested is opened at the bottom of the sealing ring. The sealing ring is fixed on the test ring of the concrete block to be tested by the slot.

[0012] In the above embodiments, the contact surface between the sealing ring and the concrete block to be tested is provided with a corrugated anti-slip structure.

[0013] The present invention also includes a detection sensor that is compatible with the above-mentioned concrete material seepage prevention detection device, including an annular fixing band and a humidity sensor. Multiple humidity sensors are evenly distributed on the inner wall of the fixing band with its central axis as the center. A controller is connected to the outer ring of the fixing band. The controller and the humidity sensors are connected one by one through the circuit. The fixing band is fixed to the outer wall of the concrete block to be tested, so that the humidity sensor is in contact with the outer wall of the concrete block to be tested.

[0014] In the above embodiments, the controller is equipped with a wireless transmission module, which is used to transmit the signals collected by the humidity sensor to an external computer for storage and processing.

[0015] Due to the above structure, the present invention has the following advantages:

[0016] 1. This application is used in conjunction with a ring-shaped concrete block to be tested. The concrete block to be tested consists of an outer test ring and an inner water-retaining ring. The thickness of the test ring varies continuously along the circumference, thereby covering a variety of thickness conditions and breaking through the limitations of traditional single-thickness specimens. When used with the testing device of this application, the testing efficiency is greatly improved, providing a convenient means for studying the relationship between concrete thickness and impermeability.

[0017] 2. The concrete block to be tested in this application is fixed on the testing platform by a positioning assembly, which includes an electric telescopic rod. When the electric telescopic rod extends, it contacts and presses against the inner ring of the concrete block to be tested through an anti-slip block, thus firmly fixing it on the testing plate. At the same time, the extension length of each electric telescopic rod can be adjusted individually to adapt to different installation positions of the concrete block to be tested. An annular sealing ring is installed on the top of the concrete block to be tested and is fixed to the test ring by a slot, effectively preventing water in the water tank from spilling out under centrifugal force when the testing plate rotates.

[0018] 3. This device transforms static water pressure infiltration into dynamic rotational infiltration, using centrifugal force to accelerate the water migration process. In the rotating state, water forms a uniform water pressure layer on the inside of the specimen, simulating the dynamic water flow infiltration of concrete in actual engineering. By precisely controlling the rotation speed, different infiltration pressures can be accurately adjusted, which can shorten the infiltration test that traditionally takes several days to complete to several hours, significantly improving the detection efficiency.

[0019] 4. This device can extend and retract the water supply end above the water tank by pulling the telescopic tube. The first and second liquid level sensors monitor the horizontal and vertical water levels in the water tank in real time. The controller controls the rotation speed of the pump and / or drive motor to keep the water level in the water tank at the set water level threshold, ensuring the stability and accuracy of the detection conditions.

[0020] 5. This device also includes a seepage prevention detection device, which consists of an annular fixing belt and multiple humidity sensors. The humidity sensors are arranged in an array on the inner wall of the annular fixing belt. The fixing belt is used to fix the humidity sensors to the outer wall of the concrete block to be tested, so as to monitor the humidity changes of the outer wall of the concrete block to be tested. Multiple points are used to detect small humidity changes on the concrete surface, providing reliable data for seepage prevention detection of concrete materials.

[0021] In summary, this device, through a specially designed concrete block to be tested in conjunction with the testing apparatus, utilizes a drive motor to rotate the testing disc. This causes the water inside the concrete block to be tested to be evenly distributed on the inner side of the test ring under centrifugal force, more realistically simulating the concrete seepage behavior under dynamic water flow conditions. This allows for simultaneous seepage testing of concrete blocks of various thicknesses to meet the testing needs of different engineering parts, effectively shortening the testing time and improving testing efficiency, thus providing more reliable concrete seepage resistance data support for engineering construction. Attached Figure Description

[0022] Figure 1 This is an axial view of the detection part of the present invention.

[0023] Figure 2 This is a bottom axial view of the detection section of the present invention.

[0024] Figure 3 This is a front view schematic diagram of the detection part of the present invention.

[0025] Figure 4 For the present invention Figure 3 Schematic diagram of the cross-sectional structure at point AA.

[0026] Figure 5 For the present invention Figure 4 An enlarged structural diagram of part A.

[0027] Figure 6 This is an isometric view of the positioning component of the present invention.

[0028] Figure 7 This is an axonometric schematic diagram of the concrete block to be tested according to the present invention.

[0029] Figure 8 This is a schematic diagram of the sealing ring of the present invention from an axial side.

[0030] Figure 9 This is an isometric view of the concrete mold of the present invention.

[0031] Figure 10 This is a top view of the concrete mold of the present invention.

[0032] Figure 11 For the present invention Figure 10A schematic diagram of the cross-sectional structure at point AA.

[0033] Figure 12 This is an axial view of the detection sensor of the present invention.

[0034] In the attached diagram: 1. Testing platform; 2. Testing disc; 3. Concrete block to be tested; 4. Drive motor; 5. Sealing ring; 6. Positioning rod; 7. Electric telescopic rod; 8. Anti-slip block; 9. Pull-out telescopic tube; 10. Water supply end; 11. First liquid level sensor; 12. Second liquid level sensor; 13. Liquid pump; 14. Water supply port; 15. Liquid supply channel; 16. Water supply slip ring; 17. Lower mold; 18. Upper mold; 19. Fixing belt; 20. Humidity sensor; 21. Controller. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0036] Furthermore, the technical solutions of the various embodiments of the present invention can be combined with each other, but only if they are feasible for those skilled in the art. If the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0037] like Figures 1-12 As shown, a concrete material seepage prevention testing device includes a testing platform 1, a testing disc 2, and a concrete block 3 to be tested. The concrete block 3 is an annular specimen, comprising a test ring on the outer ring and a water-retaining ring on the inner ring. The top of the test ring is higher than the top of the water-retaining ring, and the bottoms of the test ring and the water-retaining ring are sealed to form an annular water-retaining trough. Furthermore, the thickness of the test ring of the concrete block 3 decreases sequentially from one side to the other along the circumference, so that the thickness of the test ring changes continuously along the circumference. In this way, the concrete block 3 specimen can cover various thickness conditions, greatly improving the testing efficiency. This design breaks through the limitation of single-thickness specimens in traditional seepage prevention testing and provides a convenient experimental means for studying the relationship between concrete thickness and seepage prevention performance.

[0038] The testing platform 1 is supported on the ground, and the testing disk 2 is horizontally arranged. The testing disk 2 is rotatably mounted on the testing platform 1 and is driven to rotate by the drive motor 4. Specifically, the drive motor 4 is configured at the bottom of the testing platform 1, and the output end of the drive motor 4 is connected to the central axis of the testing disk 2. A ring-shaped concrete block 3 to be tested is coaxially arranged on the testing disk 2. A positioning component is arranged in the middle of the testing disk 2, inside the inner ring of the concrete block 3 to be tested. The positioning component contacts and presses against the inner ring of the concrete block 3 to be tested, thereby supporting and fixing the concrete block 3 to be tested.

[0039] Furthermore, the output shaft of the drive motor 4 can be coaxially arranged with the outer ring of the concrete block 3 to be tested, or it can be coaxially arranged with the inner ring of the concrete block 3 to be tested. The two layout methods can be reasonably rotated according to the test conditions. The test platform 1 is used to support the test disk 2 and the concrete block 3 to be tested. The bottom of the test platform 1 is connected to the support legs, and the upper surface of the test platform 1 can be connected to the support and guide components to support and guide the rotation of the test disk 2 and maintain the stability of the test disk 2.

[0040] like Figure 4 , Figure 6 As shown, the positioning assembly includes a positioning rod 6 and an electric telescopic rod 7. The positioning rod 6 is vertically fixed on the detection plate 2 and coaxially arranged with the detection plate 2. Multiple electric telescopic rods 7 are evenly fixed on the positioning rod 6 with the positioning rod 6 as the center. The electric telescopic rods 7 are arranged radially along the positioning rod 6. Anti-slip blocks 8 are fixed on the telescopic ends of the electric telescopic rods 7 that contact the concrete block 3 to be tested. When the electric telescopic rods 7 extend, all the electric telescopic rods 7 contact the inner ring of the concrete block 3 to be tested through the anti-slip blocks 8, thereby fixing the concrete block 3 to be tested. On the detection plate 2; furthermore, the number of electric telescopic rods 7 is not less than three, the outer side of the anti-slip block 8 is arc-shaped, and there is a large friction between the contact position of the anti-slip block 8 and the concrete block 3 to be tested, so as to avoid relative sliding between the concrete block 3 to be tested and the anti-slip block 8; at the same time, the extension length of each electric telescopic rod 7 can be adjusted individually, so as to adapt to different installation positions of the concrete block 3 to be tested. After positioning, the output shaft of the drive motor 4 can be adjusted in two states: coaxial with the outer ring of the concrete block 3 to be tested or coaxial with the inner ring.

[0041] like Figure 4 , Figure 5 , Figure 6As shown, the positioning rod 6 is also equipped with a water supply assembly, which includes a pull-out telescopic tube 9. The pull-out telescopic tube 9 is fixed radially to the positioning rod 6. A water supply end 10 is provided on the movable end of the pull-out telescopic tube 9. In use, the water supply end 10 is positioned above the water tank. A first liquid level sensor 11 and a second liquid level sensor 12 are provided on the water supply end 10. In this embodiment, the first liquid level sensor 11 and the second liquid level sensor 12 are ultrasonic water level sensors to achieve non-contact liquid level detection. The first liquid level sensor 11 is located at the bottom of the water supply end 10, and the second liquid level sensor 12 is located on the side of the water supply end facing the concrete block 3 to be tested. The monitoring end of the first liquid level sensor 11 faces the bottom surface of the water tank, and the monitoring end of the second liquid level sensor 12 faces the side wall of the water tank. The water supply end 10 is equipped with a liquid pump 13 inside. The side of the water supply end 10 facing the concrete block 3 to be tested is also equipped with a water supply port 14. The water supply port 14 is connected to the outlet of the liquid pump 13 through a pipeline. The inlet of the liquid pump 13 is connected to a water source through a liquid supply channel 15. Furthermore, the output shaft of the drive motor 4 and the interior of the positioning component are provided with a through liquid supply channel 15. The output shaft of the drive motor 4 is equipped with a water supply slip ring 16. The water supply slip ring 16 is connected to the liquid supply channel 15 and is connected to an external water source through a pipeline.

[0042] During testing, the water in the water tank of the concrete block 3 to be tested flows outward under the action of centrifugal force and is vertically distributed inside the concrete block 3 to be tested. The liquid level at the bottom of the concrete block 3 to be tested is detected by the first liquid level sensor 11, and the liquid level of the vertically distributed water is detected by the second liquid level sensor 12.

[0043] Furthermore, the pull-out telescopic tube 9 is a manually operated telescopic tube with a lockable telescopic length. After the pull-out telescopic tube is extended, its length is locked, so that the water supply end 10 is located on the upper side of the concrete block 3 to be tested. The liquid pump 13 is a solenoid valve liquid pump, which can automatically supply water to the interior of the concrete block to be tested.

[0044] like Figure 9 and Figure 10 As shown, the device also includes a concrete mold for preparing the concrete block 3 to be tested. The concrete mold includes an upper mold 18 and a lower mold 17. The lower mold 17 is a cavity with an open top. The upper mold 18 is coaxially arranged in the cavity of the lower mold 18. A ring mold cavity with gradually changing thickness is formed between the upper mold 18 and the lower mold 17.

[0045] Specifically: the lower mold 17 includes two eccentrically arranged first fixing ring plates. The bottoms of the two first fixing ring plates are fixed and sealed by a first annular base plate. The height of the first fixing ring plate on the outer side is greater than the height of the first fixing ring plate on the inner side.

[0046] The upper mold 18 includes two coaxially arranged second fixing ring plates. The bottom of the two second fixing ring plates is fixed and sealed by a second annular bottom plate. The height of the outer second fixing ring plate is greater than that of the inner second fixing ring plate. Annular top plates are fixed on the top of the outer second fixing ring plate and the top of the inner second fixing ring plate, respectively. The annular top plates are provided with pouring holes. The upper mold 18 is connected to the two first fixing ring plates of the lower mold 17 through the two annular top plates, so that an annular mold cavity matching the size of the concrete block 3 to be tested is formed between the upper mold 18 and the lower mold 17.

[0047] In use, the inner rings of the upper mold 18 and the lower mold 17 are set coaxially. Concrete is poured into the annular mold cavity through the pouring hole on the annular top plate. The upper mold 18 and the lower mold 17 form a concrete block 3 to be tested with the outer side higher and the inner side lower.

[0048] like Figure 4 , Figure 8 As shown, during the test, an annular sealing ring 5 is installed on the top of the concrete block 3 to be tested. The inner diameter of the sealing ring 5 is smaller than the inner diameter of the concrete block 3 to be tested. The bottom of the sealing ring 5 has a slot that matches the size of the test ring of the concrete block 3 to be tested. The sealing ring 5 is fixed to the test ring of the concrete block 3 to be tested by the slot. The sealing ring 5 blocks the water inside the water tank of the concrete block 3 to be tested, preventing the water from splashing out under the action of centrifugal force when the test disc 2 rotates.

[0049] Furthermore, the sealing ring 5 is made of corrosion-resistant, highly elastic silicone or rubber material, possessing excellent sealing performance and durability. The contact surface between the sealing ring 5 and the specimen is designed with a micro-corrugated structure to further enhance the sealing and anti-slip effect, preventing high-pressure water leakage from the interface.

[0050] like Figure 1 and Figure 12As shown, the present invention also includes a seepage detection device, comprising an annular fixing band 19 and humidity sensors 20. Multiple humidity sensors 20 are evenly distributed on the inner wall of the fixing band 19, centered on its central axis. A controller 21 is connected to the outer ring of the fixing band 19, and the controller 21 is connected to each humidity sensor 20 via wiring. Further, the fixing band 19 can be made of a rigid or elastic material. When the fixing band 19 is made of a rigid material, it adopts a clamp structure to fix the humidity sensors 20 to the outer wall of the concrete block 3 to be tested. Specifically, the fixing band 19 includes two opposing semi-circular clamps, the ends of which are detachably connected. When the fixing band 19 is made of an elastic material, it can be directly fitted and fixed to the outer wall of the concrete block 3 to be tested using its elasticity, thus also achieving the purpose of fixing the humidity sensors 20 to the outer wall of the concrete block 3 to be tested.

[0051] In this embodiment, the humidity sensor 20 is a high-sensitivity capacitive or resistive sensor, with a measurement range covering 0-100% relative humidity and a resolution of ±0.5%. Each sensor is individually calibrated to ensure the consistency of measurement results. The sensor probe is encapsulated with corrosion-resistant material and directly contacts the concrete surface. Its contact pressure is controlled within the range of 5-10N to ensure good contact without damaging the specimen. The controller 21 is integrated into the outer ring of the fixing band 19 and is encapsulated in a waterproof and dustproof manner. The controller 21 has a built-in high-performance processor, signal conditioning circuit, and wireless transmission module. The wireless transmission module is used to transmit the signals collected by the humidity sensor to an external computer for storage and processing.

[0052] In use, the fixing strap 19 is fixed to the outside of the concrete block 3 to be tested, so that the humidity sensor 20 is in contact with the outer ring of the concrete block 3 to be tested.

[0053] With the above structure, the specific usage process of this device is as follows:

[0054] First, place the concrete block 3 to be tested on the testing plate 2, so that the positioning rod 6 is located at the axis of the concrete block 3 to be tested; by controlling the extension length of the electric telescopic rod 7, the anti-slip block 8 on the electric telescopic rod 7 is pressed against the concrete block 3 to be tested, thereby fixing the concrete block 3 to be tested and the testing plate 2; then, install the fixing strap 19 on the outer wall of the concrete block 3 to be tested, and connect the wireless transmission module of the controller 21 to an external computer for communication.

[0055] The control pull-out telescopic rod is extended so that the water supply end 10 is placed directly above the water tank of the concrete block 3 to be tested. Water is injected into the water tank to a suitable depth by starting the liquid pump. The liquid level is initially detected by the first liquid level sensor 11 and the second liquid level sensor 12.

[0056] Then, the drive motor 4 is started, which drives the detection plate 2 to rotate. The water in the water tank is thrown outward under the action of centrifugal force and is distributed vertically on the inner wall of the test ring. During the detection process, the controller 21 monitors the first liquid level sensor 11 and the second liquid level sensor 12 to control the liquid pump 13 and the drive motor 4 in real time, so as to keep the water level in the water tank at the set water level threshold until the detection is completed.

[0057] Through the above process, this device can transform static water pressure infiltration into dynamic rotational infiltration, utilizing centrifugal force to accelerate the water migration process. In the rotating state, water forms a uniform water pressure layer inside the specimen, simulating the dynamic water flow's infiltration effect on concrete in actual engineering. The water pressure generated by centrifugal force is proportional to the square of the rotational speed; precise control of the rotational speed allows for accurate adjustment of different infiltration pressures. This dynamic detection method shortens the traditional infiltration test, which requires several days, to several hours, significantly improving detection efficiency. Simultaneously, the multi-thickness integrated specimen design and array-type humidity sensing technology enable simultaneous detection of the impermeability of concrete in areas of different thicknesses.

[0058] The above are merely preferred embodiments of the present invention and do not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A concrete material seepage prevention detection device, characterized in that: The test includes a testing platform, a testing tray, and a concrete block to be tested. The concrete block to be tested is an annular test block, which includes a test ring on the outer ring and a water-retaining ring on the inner ring. The top of the test ring is higher than the top of the water-retaining ring. The bottoms of the test ring and the water-retaining ring are sealed to form an annular water-retaining trough. The testing platform is supported on the ground, and the testing tray is rotatably mounted on the testing platform. The testing tray is driven to rotate by a drive motor. The annular concrete block to be tested is coaxially arranged on the testing tray. A positioning component is set in the middle of the testing tray, inside the inner ring of the concrete block to be tested. The positioning component contacts and presses against the inner ring of the concrete block to be tested, thereby fixing the concrete block to be tested on the testing tray.

2. The concrete material seepage prevention detection device according to claim 1, characterized in that: The thickness of the test ring of the concrete block to be tested decreases sequentially from one side to the other along the circumferential direction, so that the thickness of the test ring changes continuously along the circumferential direction.

3. The concrete material seepage prevention detection device according to claim 1, characterized in that: The positioning assembly includes a positioning rod and an electric telescopic rod. The positioning rod is vertically fixed on the detection plate and coaxially arranged with the detection plate. Multiple electric telescopic rods are evenly fixed on the positioning rod with the positioning rod as the center, and the electric telescopic rods are arranged radially along the positioning rod.

4. The concrete material seepage prevention detection device according to claim 3, characterized in that: The telescopic end of the electric telescopic rod is fixed with an anti-slip block on the contact end with the concrete block to be tested.

5. The concrete material seepage prevention detection device according to claim 3, characterized in that: The positioning rod is also equipped with a water supply assembly, which includes a pull-out telescopic tube fixed radially to the positioning rod. A water supply end is provided on the movable end of the pull-out telescopic tube. In use, the water supply end is positioned above the water tank. A first liquid level sensor and a second liquid level sensor are provided on the water supply end. The first liquid level sensor is located at the bottom of the water supply end, and the second liquid level sensor is located on the side of the water supply end facing the concrete block to be tested. A liquid pump is installed inside the water supply end. A water inlet is also provided on the side of the water supply end facing the concrete block to be tested. The water inlet is connected to the outlet of the liquid pump through a pipeline, and the inlet of the liquid pump is connected to a water source through a liquid supply channel.

6. The concrete material seepage prevention detection device according to claim 1, characterized in that: A ring-shaped sealing ring is installed on the top of the concrete block to be tested. The inner diameter of the sealing ring is smaller than the inner diameter of the concrete block to be tested. A groove matching the size of the test ring of the concrete block to be tested is opened at the bottom of the sealing ring. The sealing ring is fixed to the test ring of the concrete block to be tested by the groove.

7. The concrete material seepage prevention detection device according to claim 6, characterized in that: The contact surface between the sealing ring and the concrete block to be tested has a corrugated anti-slip structure.

8. A detection sensor配套 with the concrete material anti-seepage detection device according to any one of claims 1 to 7, characterized in that: It includes a ring-shaped fixing band and a humidity sensor. Multiple humidity sensors are evenly distributed on the inner wall of the fixing band with its central axis as the center. The outer ring of the fixing band is connected to a controller. The controller and the humidity sensors are connected one by one through the wires. The fixing band is fixed to the outer wall of the concrete block to be tested, so that the humidity sensor is in contact with the outer wall of the concrete block to be tested.

9. The detection sensor according to claim 8, characterized in that: The controller is equipped with a wireless transmission module, which is used to transmit the signals collected by the humidity sensor to an external computer for storage and processing.

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