Device for testing repair ability of cement-based capillary crystalline waterproofing agent

Abstract

The utility model relates to cement base penetration crystalline waterproofing agent's detection device of repair ability, it includes the measuring cylinder that is bonded to the top crack of test piece splicing, clamping unit, crack measuring instrument, clamping unit includes clamping arm, is used for adjusting the pressure regulator of clamping arm clamping pressure, detection device still includes water circulation unit and detection unit. The utility model one side is based on test piece in up and down / horizontal direction direction positioning, and the clamping pressure of test piece is adjusted to clamping arm through pressure regulator, to fix test piece effectively, ensure test piece crack interval accurate, the other side will spray the circulation flow of redundant water between water inlet chamber and water receiving groove, improve the utilization of water, reduce waste, at the same time, solid matter is filtered in water circulation by filter, and it is convenient to collect and clean, in addition, monitor and data processing center are used, to real -time monitoring test water level and flow rate change, improve the accuracy of detection result.

Description

Technical Field

[0001] This utility model belongs to the field of waterproof testing technology, specifically relating to a testing device for the repair capability of cement-based penetrating crystalline waterproofing agents. Background Technology

[0002] Currently, the GB / T 18445-2025 standard, "Cement-based Penetrating Crystalline Waterproofing Materials," has added a test to assess the self-healing ability of cement-based penetrating crystalline waterproofing agents on concrete structures. This test evaluates the ability of cement-based penetrating crystalline waterproofing agents to repair cracks in existing concrete buildings. Unlike T / SZWA 003-2020, "Specifications for Self-healing Waterproofing Materials Admixtures in Concrete and Their Construction and Technical Specifications," the GB / T 18445-2025 standard characterizes the crack repair ability of cement-based penetrating crystalline waterproofing agents by testing the rate of water descent with the same volume. This method provides a simple and quick way to obtain test results.

[0003] During testing, the concrete specimen was fixed in place by a clamp consisting of two steel plates, two screws, and four nuts. A 1L plastic measuring cylinder with a graduated bottom opening was placed in the middle of the crack in the specimen. The measuring cylinder was sealed to the surface of the specimen with silicone or a suitable sealant, and the remaining surface and sides of the specimen were sealed along the crack to prevent lateral leakage. Finally, all moisture was allowed to pass through the crack cross section.

[0004] However, in actual testing processes, the following technical defects are prone to occur:

[0005] 1. Under the influence of factors such as equipment vibration and handling activities, existing fixtures are prone to loosening, causing changes in the crack spacing of the samples. When the sample spacing is too large, the self-healing ability of cement-based penetrating crystalline waterproofing agent is prone to failure.

[0006] 2. The testing process requires continuous water flow, which makes it impossible to effectively collect and reuse water, resulting in waste. Furthermore, cement hydration will continue during the water flow process, producing some components that are difficult to dissolve in water, increasing the difficulty of treatment.

[0007] 3. The standard calculates the healing rate of cement-based penetrating crystalline waterproofing agent by the time it takes for the water level to drop 500mL. This process is prone to large errors when calculated manually. When the difference in healing rate before and after drip irrigation is small, it is difficult to judge the healing rate of the sample. Summary of the Invention

[0008] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide an improved testing device for the repair ability of cement-based penetrating crystalline waterproofing agents.

[0009] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0010] A testing device for the repair capability of a cement-based penetrating crystalline waterproofing agent includes a measuring cylinder bonded to a crack on the top surface of a specimen joint, a clamping unit, and a crack measuring instrument. The clamping unit includes clamping arms and a pressure regulator for adjusting the clamping pressure of the clamping arms. The testing device also includes a water circulation unit and a testing unit. The water circulation unit includes a water receiving tank, a spraying component positioned above the water receiving tank and having a water inlet chamber and a spray nozzle, a circulation pipeline connecting the water receiving tank and the water inlet chamber, and a filter installed on the circulation pipeline. The specimen is positioned in the water receiving tank in the vertical and / or horizontal direction, and the clamping arms clamp or release the specimen in the joint direction. The spraying component sprays water droplets onto the specimen from the spray nozzle. The testing unit includes a monitor for real-time detection of the water level and flow rate in the measuring cylinder and a data processing center for receiving and processing the data measured by the monitor and outputting the test results.

[0011] According to a specific embodiment and preferred aspect of this utility model, a testing station is provided inside the water receiving tank. The specimen is supported on the bottom of the water receiving tank and positioned within the testing station perpendicular to the splicing direction. This allows for rapid positioning of the specimen, enabling precise clamping by the clamping arms.

[0012] Preferably, the testing station includes two guard plates spaced apart along a direction perpendicular to the splicing direction. During testing, the specimen is placed in a water tank, and each guard plate is attached to the opposite sides of the specimen, partially or fully covering the side cracks at the splicing point. This design simplifies and facilitates positioning, and the coverage of the cracks by the guard plates avoids interference with the splicing position of the specimen in the direction perpendicular to the splicing direction.

[0013] Preferably, the water receiving tank is equipped with multiple testing stations, and multiple test specimens are located in each testing station. This allows for simultaneous testing of multiple test specimens, resulting in high efficiency.

[0014] According to another specific embodiment and preferred aspect of this utility model, the clamping arm includes two fastening pistons disposed on opposite sides of the specimen along the splicing direction, and the pressure regulator includes a pressure control component connected to the two fastening pistons. The two fastening pistons synchronously move closer or further apart to clamp or release the specimen. Therefore, during the clamping process, both sides of the specimen are subjected to force synchronously, further increasing the clamping stability.

[0015] According to another specific embodiment and preferred aspect of this utility model, a spirit level is provided inside the water receiving tank, and a leveling support for adjusting the level of the water receiving tank is provided at the bottom of the water receiving tank. The leveling support includes multiple legs distributed around the bottom of the water receiving tank, and each leg can be adjusted vertically. This ensures that the water receiving tank is level, thereby preventing water from flowing on the surface of the specimen and causing uneven immersion, thus improving the accuracy of the test results.

[0016] Preferably, there are multiple spray nozzles evenly distributed on the bottom surface of the spray component, and in the orthographic projection on the horizontal plane, the spray area formed by the multiple spray nozzles is located inside the water receiving tank and covers the specimen.

[0017] Preferably, the circulation pipeline includes a circulation pipe that is connected from both ends to the bottom of the water receiving tank and the top of the water inlet chamber, respectively, and a circulation pump installed on the circulation pipe.

[0018] Preferably, a water level sensor is installed in the water inlet chamber, and the water circulation unit further includes a water replenishment component for maintaining the liquid level in the water inlet chamber. The water replenishment component includes a water storage tank, a water replenishment pipe connecting the water storage tank and the water inlet chamber, and a water replenishment pump installed on the water replenishment pipe. Here, when the water level in the water inlet chamber is lower than that of the water level sensor, water can be automatically replenished to prevent the device from being short of water and affecting the water spraying speed.

[0019] In addition, the graduated cylinder has vertically distributed water level indicator lines, and the monitor includes two water level sensors installed inside the graduated cylinder and aligned with the vertical water level indicator lines, and a flow velocity sensor aligned with the lower water level sensor. Based on the layout of the vertical water level sensors, changes in the water level inside the graduated cylinder are accurately monitored; at the same time, aligning the flow velocity sensor with the lower water level sensor facilitates accurate monitoring of the water flow rate.

[0020] Due to the implementation of the above technical solution, this utility model has the following advantages compared with the prior art:

[0021] Existing technologies are prone to loosening of fixtures due to factors such as equipment vibration and handling, causing changes in the crack spacing of the samples. When the sample spacing becomes too large, the self-healing ability of cement-based penetrating crystalline waterproofing agents is easily lost. The testing process requires continuous water flow, making effective collection and reuse impossible, leading to waste. Furthermore, cement hydration continues during water flow, producing some water-insoluble components, increasing the difficulty of processing. Standards calculate the healing rate of cement-based penetrating crystalline waterproofing agents by measuring the time it takes for the water level to drop 500 mL. This manual calculation is prone to significant errors, and when the difference in healing rate before and after drip irrigation is small, it is difficult to assess the sample's healing rate. This application addresses these shortcomings by comprehensively designing the structure of the testing device for the repair ability of cement-based penetrating crystalline waterproofing agents, cleverly resolving the deficiencies and defects of existing technologies. After the testing device is installed and the specimen is assembled, the measuring cylinder is first bonded to the crack on the top surface of the specimen joint. The specimen is positioned vertically and / or horizontally in the water receiving tank and clamped by the clamping arms. The clamping pressure of the clamping arms on the specimen is adjusted as needed to ensure the stability of the crack at the specimen joint. Then, water droplets are sprayed onto the specimen through the upper spray nozzle. Excess water is collected by the water receiving tank and returned to the water inlet chamber through the circulation pipeline for reuse. At the same time, the solids in the water are filtered and collected by the filter. Next, when the corresponding drip irrigation age is reached, water is injected into the measuring cylinder, and the monitor and data processing center are turned on. Timing starts when the water level is 1000mL and stops when the water level is 500mL. The healing rate of the sample is calculated. Finally, the above operation is repeated. When the water flow rate at the crack of the specimen is less than 1mL / min at a certain drip irrigation age, the test is stopped. Therefore, compared with the prior art, this utility model, on the one hand, is based on the positioning of the specimen in the vertical / horizontal direction, and the clamping pressure of the clamping arm on the specimen is adjusted by the pressure regulator, thereby effectively fixing the specimen and ensuring the accuracy of the crack spacing of the specimen; on the other hand, the excess water generated by the spraying circulates between the water inlet chamber and the water receiving tank, improving the water utilization rate and reducing waste. At the same time, the filter filters solids in the water circulation, which is convenient for collection and cleaning. In addition, a monitor and data processing center are used to monitor the changes in test water level and flow rate in real time, thereby improving the accuracy of the test results. Attached Figure Description

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Figure 1 This is a front view schematic diagram of the device for testing the repair capability of cement-based penetrating crystalline waterproofing agent in this embodiment;

[0024] Figure 2 for Figure 1 Enlarged schematic diagram of a local part of the structure;

[0025] Figure 3for Figure 1 A top-down enlarged view of a local structure;

[0026] The components are as follows: 1. Measuring cylinder; 2. Crack measuring instrument; 3. Clamping unit; 30. Clamping arm; a. Fastening piston; b. Pressure control component; 31. Pressure regulator; 4. Water circulation unit; 40. Support; 41. Water receiving tank; w. Detection station; w0. Grid plate; p. Spirit level; z. Leveling support; z0. Support leg; 42. Spraying component; q. Water inlet chamber; k. Spray nozzle; 43. Circulation pipeline; 430. Circulation pipe; 431. Circulation pump; 44. Filter; 45. Water replenishment component; 450. Water storage tank; 451. Water replenishment pipe; 452. Water replenishment pump; 5. Detection unit; 50. Monitor; 51. Data processing center; c. Water level sensor; d. Flow rate sensor; S. Specimen; f. Crack. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can mean that the first and second features are in direct contact, or that they are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" of a second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" a second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature. It should be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there may be an intermediate element present. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element present. The terms "vertical," "horizontal," "above," "below," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible embodiments.

[0032] like Figures 1 to 3 As shown, the testing device for the repair capability of cement-based penetrating crystalline waterproofing agent involved in this embodiment includes a measuring cylinder 1, a crack measuring instrument 2, a clamping unit 3, a water circulation unit 4, and a testing unit 5.

[0033] Specifically, in this embodiment, the specimen S is a concrete specimen, which is composed of two concrete samples spliced ​​together, wherein a PVC plastic sheet is placed between the concrete samples to limit the width of the crack f between the concrete specimens.

[0034] In this example, measuring cylinder 1 is bonded to the crack on the top surface of the splice of specimen S using conventional methods. The bonding requirements are consistent with GB / T18445-2025 "Cement-based Penetrating Crystalline Waterproofing Materials" (hereinafter referred to as the "Standard").

[0035] In this example, the crack measuring instrument 2 uses an existing concrete crack width measuring instrument.

[0036] In this example, the clamping unit 3 includes a clamping arm 30 and a pressure regulator 31 for adjusting the clamping pressure of the clamping arm 30; the water circulation unit 4 includes a bracket 40, a water receiving tank 41 connected to the lower part of the bracket 40, a spraying component 42 disposed above the water receiving tank 41 and having a water inlet chamber q and a spray nozzle k connected thereto, a circulation pipe 43 connecting the water receiving tank 41 and the water inlet chamber q, and a filter 44 disposed on the circulation pipe 43, wherein the specimen S is positioned in the water receiving tank 41 in the vertical and / or horizontal direction, and the clamping arm 30 clamps or releases the specimen S in the splicing direction, and the spraying component 42 is used to spray water droplets from the spray nozzle k to the specimen S.

[0037] In some specific embodiments, the clamping arm 30 includes two fastening pistons a arranged on opposite sides of the specimen S along the splicing direction, and the pressure regulator 31 includes a pressure control component b connected to the two fastening pistons a respectively. The two fastening pistons a move synchronously closer or further apart to clamp or release the specimen S. Therefore, during the clamping process, both sides of the specimen are subjected to force synchronously, further increasing the clamping stability. In this embodiment, the pressure control component b is a hydraulic cylinder installed in the water receiving tank 41, and the fastening pistons a are connected to the output end of the hydraulic cylinder.

[0038] In this example, the water receiving tank 41 is recessed from top to bottom, and multiple testing stations w are arranged side by side at intervals along the splicing direction within the water receiving tank 41. Each specimen S is supported on the bottom of the water receiving tank 41 and positioned within its respective testing station w perpendicular to the splicing direction. This allows for rapid positioning of the specimen, enabling precise clamping by the clamping arms.

[0039] In some specific embodiments, the testing station w includes two guard plates w0 spaced apart along a direction perpendicular to the splicing direction. During testing, the specimen S is placed in the water receiving tank 41 and inserted between the two guard plates w0. Each guard plate w0 is attached to the opposite sides of the specimen S, partially or fully covering the side cracks at the splicing point of the specimen S. This positioning operation is simple and convenient, and because the guard plates on both sides cover the cracks, interference with the splicing position of the specimen in the direction perpendicular to the splicing direction is avoided.

[0040] To further facilitate implementation, a level bubble p is provided inside the water receiving tank 41, and a leveling support z is provided at the bottom of the water receiving tank 41 for adjusting its level. The leveling support z includes multiple support legs z0 distributed around the bottom of the water receiving tank 41, and each support leg z0 can be adjusted vertically. This ensures that the water receiving tank is level, thereby preventing water from flowing on the surface of the specimen and causing uneven immersion, thus improving the accuracy of the test results.

[0041] In this example, the upper part of the spray component 42 forms a water inlet cavity q, and there are multiple spray nozzles k evenly distributed on the bottom surface of the spray component 42. In the orthographic projection on the horizontal plane, the spray area formed by the multiple spray nozzles k is located inside the water receiving tank 41 and evenly covers the specimen S.

[0042] Meanwhile, a water level sensor c is installed inside the water inlet chamber q. The water circulation unit 4 also includes a water replenishment component 45 for maintaining the liquid level in the water inlet chamber q. The water replenishment component 45 includes a water storage tank 450, a water replenishment pipe 451 connecting the water storage tank 450 and the water inlet chamber q, and a water replenishment pump 452 installed on the water replenishment pipe 451. Here, when the water level in the water inlet chamber is lower than that of the water level sensor, water can be automatically replenished to prevent the device from being short of water and affecting the water spraying speed.

[0043] In this example, the circulation pipeline 43 includes a circulation pipe 430 that is connected to the bottom of the water receiving tank 41 and the top of the water inlet chamber q from both ends, and a circulation pump 431 installed on the circulation pipe 430.

[0044] In this example, filter 44 is a commercially available product used to filter and collect solids in circulation pipe 430.

[0045] In addition, the detection unit 5 includes a monitor 50 for real-time detection of water level and flow rate in the measuring cylinder 1, and a data processing center 51 for receiving and processing the data measured by the monitor 50 and outputting the detection results.

[0046] In some specific embodiments, the measuring cylinder 1 has vertically distributed water level indicators corresponding to 1000ml and 500ml. The monitor 50 includes two water level sensors c disposed inside the measuring cylinder 1 and aligned with the vertical water level indicators, and a flow velocity sensor d aligned with the lower water level sensor c. Both the water level sensors c and the flow velocity sensor d are commercially available products and will not be described in detail here. Based on the layout of the vertical water level sensors, changes in the water level inside the measuring cylinder are accurately monitored; simultaneously, aligning the flow velocity sensor with the lower water level sensor facilitates accurate monitoring of the water flow rate.

[0047] The data processing center 51 uses a computer, which means that this application improves the existing technology of manually measuring data and performing calculation and analysis by using a computer. It also uses conventional technical means to receive the data measured by the water level sensor c and the flow velocity sensor d and combine them with time calculation to obtain the settlement result (the calculation process can be found in the "Standard"). It will not be elaborated here, and it is clear that it can be implemented.

[0048] In summary, after using this testing device, the measuring cylinder is first bonded to the crack on the top surface of the specimen joint after the specimen is assembled. The specimen is positioned in the water receiving tank in the vertical and / or horizontal directions, and clamped by the clamping arms. The clamping pressure of the clamping arms on the specimen is adjusted according to actual needs to ensure the stability of the crack at the specimen joint. Then, water droplets are sprayed onto the specimen through the upper spray nozzle. The water receiving tank collects the excess water, and the excess water is returned to the water inlet chamber through the circulation pipeline for reuse. At the same time, the filter removes and collects solids from the water. Next, when the corresponding drip irrigation age is reached, water is injected into the measuring cylinder, and the monitor and data processing center are turned on. Timing starts when the water level is 1000mL and stops when the water level is 500mL. The healing rate of the sample is calculated. Finally, the above operation is repeated. When the water flow rate at the crack of the specimen is less than 1mL / min at a certain drip irrigation age, the test is stopped. Therefore, compared with the prior art, this utility model, on the one hand, is based on the positioning of the specimen in the vertical / horizontal direction, and the clamping pressure of the clamping arm on the specimen is adjusted by the pressure regulator, thereby effectively fixing the specimen and ensuring the accuracy of the crack spacing of the specimen; on the other hand, the excess water generated by the spraying circulates between the water inlet chamber and the water receiving tank, improving the water utilization rate and reducing waste. At the same time, the filter filters solids in the water circulation, which is convenient for collection and cleaning. In addition, a monitor and data processing center are used to monitor the changes in test water level and flow rate in real time, thereby improving the accuracy of the test results.

[0049] The present utility model has been described in detail above, with the aim of enabling those skilled in the art to understand its contents and implement it. However, this description should not be construed as limiting the scope of protection of the present utility model. All equivalent changes or modifications made in accordance with the spirit and essence of the present utility model should be included within the scope of protection of the present utility model.

Claims

1. A testing device for the repair capability of a cement-based penetrating crystalline waterproofing agent, comprising a measuring cylinder bonded to a crack on the top surface of a specimen joint, a clamping unit, and a crack measuring instrument, characterized in that, The clamping unit includes clamping arms and a pressure regulator for adjusting the clamping pressure of the clamping arms; the detection device further includes a water circulation unit and a detection unit. The water circulation unit includes a water receiving tank, a spray component disposed above the water receiving tank and having a water inlet chamber and a spray nozzle, a circulation pipeline connecting the water receiving tank and the water inlet chamber, and a filter disposed on the circulation pipeline. The specimen is positioned in the water receiving tank in the vertical and / or horizontal directions, and the clamping arms clamp or release the specimen in the splicing direction. The spray component is used to spray water droplets onto the specimen from the spray nozzle. The detection unit includes a monitor for real-time detection of the water level and flow rate in the measuring cylinder and a data processing center for receiving and processing the data measured by the monitor and outputting the detection results.

2. The testing device for the repair capability of cement-based penetrating crystalline waterproofing agent according to claim 1, characterized in that, The water receiving tank is equipped with a testing station, and the specimen is supported on the bottom of the water receiving tank and positioned in the testing station perpendicular to the splicing direction.

3. The testing device for the repair capability of cement-based penetrating crystalline waterproofing agent according to claim 2, characterized in that, The testing station includes two grid plates spaced apart along a direction perpendicular to the splicing direction. During testing, the specimen is placed in a water tank, and each grid plate is attached to the opposite sides of the specimen to partially or fully cover the side cracks at the splicing point of the specimen.

4. The testing device for the repair capability of cement-based penetrating crystalline waterproofing agent according to claim 2 or 3, characterized in that, The water receiving tank is equipped with multiple testing stations, and there are multiple test specimens, each corresponding to a testing station.

5. The testing device for the repair capability of cement-based penetrating crystalline waterproofing agent according to claim 1, characterized in that, The clamping arm includes two fastening pistons arranged on opposite sides of the specimen along the splicing direction. The pressure regulator includes a pressure control component connected to the two fastening pistons. The two fastening pistons move towards or away from each other synchronously to clamp or release the specimen.

6. The testing device for the repair capability of cement-based penetrating crystalline waterproofing agent according to claim 1, characterized in that, The water receiving trough is equipped with a spirit level, and the bottom of the water receiving trough is equipped with a leveling support for adjusting the level of the water receiving trough. The leveling support includes multiple legs distributed around the bottom of the water receiving trough, and each leg can be adjusted up and down.

7. The testing device for the repair capability of cement-based penetrating crystalline waterproofing agent according to claim 1, characterized in that, The spray nozzles are multiple and evenly distributed on the bottom surface of the spray component, and in the orthographic projection on the horizontal plane, the spray area formed by the multiple spray nozzles is located inside the water receiving tank and covers the specimen.

8. The testing device for the repair capability of cement-based penetrating crystalline waterproofing agent according to claim 1, characterized in that, The circulation pipeline includes a circulation pipe that connects to the bottom of the water receiving tank and the top of the water inlet chamber from both ends, and a circulation pump installed on the circulation pipe.

9. The testing device for the repair capability of cement-based penetrating crystalline waterproofing agent according to claim 1, characterized in that, The water inlet chamber is equipped with a water level sensor, and the water circulation unit also includes a water replenishment component for maintaining the liquid level in the water inlet chamber. The water replenishment component includes a water storage tank, a water replenishment pipe connecting the water storage tank and the water inlet chamber, and a water replenishment pump installed on the water replenishment pipe.

10. The testing device for the repair capability of cement-based penetrating crystalline waterproofing agent according to claim 1, characterized in that, The graduated cylinder has vertically distributed water level indicator lines, and the monitor includes two water level sensors disposed inside the graduated cylinder and aligned with the vertical water level indicator lines, and a flow velocity sensor aligned with the water level sensor located below.

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