Concrete impermeability detection system and transformation method of traditional impermeability detection system

Abstract

The invention relates to the technical field of concrete water seepage detection, in particular to a concrete impermeability detection system and a transformation method of a traditional impermeability detection system. According to the concrete impermeability detection system provided by the invention, an effective detection part is added on the basis of a traditional impermeability detection system and is used for detecting components in a water seepage body. Therefore, the water seepage path of the input high-pressure water can be obtained according to the detection result of the water seepage body only by adding the macromolecular anti-seepage reagent which cannot be filtered out by the qualified concrete test piece into the input high-pressure water. Therefore, impermeability detection is carried out in combination with the filtering characteristic of the concrete, and a water seepage path is further detected after water seepage, so that the situation that the concrete is unqualified due to water seepage misjudgment caused by a detection system is eliminated.

Description

Technical Field

[0001] The invention relates to the technical field of concrete water seepage detection, in particular to a concrete water seepage detection system and a modification method of a traditional water seepage detection system. Background Art

[0002] Concrete is a commonly used building material and plays a decisive role in the safety of building structures. Concrete water seepage detection is an important guarantee for concrete safety. "GB / T 50082 Standard for Test Methods for Long-term Performance and Durability of Ordinary Concrete" makes basic technical requirements for long-term performance and durability tests of ordinary concrete, which stipulates the environment and operation of concrete water seepage detection.

[0003] The essential components of the concrete anti-seepage detection system include: base 1, casing 4, airbag 2 and top seat 3; the base 1, casing 4 and top seat 3 cooperate to form a test space for accommodating the concrete specimen, and the airbag 2 is arranged on the inner periphery of the casing 4 and wraps the concrete specimen. In this concrete anti-seepage detection system, it is assumed that the airbag 2 has filled all the gaps in the test space. After high-pressure water enters the base, if water is detected between the concrete and the top seat, it is judged that the concrete is seeping.

[0004] This detection principle must ensure that the airbag 2 fills all gaps and is intact. The current means to ensure that the airbag is intact are: inflate the airbag 2 before the concrete test to detect whether the airbag 2 is leaking; and then perform the concrete anti-permeability test after ensuring that the airbag 2 is not leaking.

[0005] However, this method can only ensure that the airbag 2 is intact before the concrete impermeability test; it cannot ensure whether the airbag 2 is damaged during the test, and it cannot ensure that there is no gap between the airbag 2 and the concrete specimen.

[0006] It can be seen that when the current concrete anti-seepage detection system detects water seepage, it cannot guarantee that the water seepage result is caused by unqualified concrete. Summary of the invention

[0007] In order to overcome the defect that the concrete anti-seepage detection system in the above-mentioned prior art cannot determine the seepage path, the present invention proposes a concrete anti-seepage detection system, which further detects the components in the seepage water body after detecting the seepage, thereby realizing the detection of the seepage path.

[0008] The present invention provides a concrete anti-seepage detection system, comprising a water seepage detection part and an effectiveness detection part;

[0009] The water seepage detection part fully wraps the concrete specimen in the detection state, so that the concrete specimen is blocked at the outlet of the flushing channel, and a water storage space is formed on the side of the concrete specimen away from the flushing channel, and a water body detection module is provided in the water storage space;

[0010] The effectiveness detection part is used to detect whether the water in the water storage space contains the anti-seepage agent added to the water in the flushing channel.

[0011] Preferably, the water seepage detection component includes: a base, a casing and a top seat; an air bag is provided on the inner periphery of the casing, and a flushing channel connected to a high-pressure pump is provided on the base; in the detection state, the concrete specimen is blocked at the outlet of the flushing channel; the base, the casing and the top seat cooperate with each other to form a test cavity covering the concrete specimen, and the air bag is inflated to fill the gap in the test cavity; the high-pressure pump fills water into the flushing channel, and the top seat presses the concrete specimen and the casing; a water storage space is formed between the top seat and the concrete.

[0012] Preferably, the effectiveness detection part includes: a mounting structure and a sensor module, the sensor module is mounted on the top seat through the mounting structure, and the sensor module is located in the water storage space; the sensor module includes a light propagation unit and a photosensor; the photosensor is located on the light propagation path of the light propagation unit, and the photosensor determines whether there is an anti-seepage agent in the seeping water body based on the light detection situation.

[0013] Preferably, the photosensor is a sensor for detecting diffuse reflection of colored light or a light intensity sensor.

[0014] Preferably, the light propagation unit is composed of a light source and a light absorber, the light absorber is located in the light emitting direction of the light source, and the photosensor is located between the light source and the light absorber; the light source is used to emit a parallel beam of white light.

[0015] Preferably, the water body detection module includes two metal structures respectively connected to the positive and negative poles of the external power supply module. When water enters the water storage space, the circuit where the two metal structures are located is connected to generate a water seepage detection signal; the two metal structures are respectively implemented as a light source housing and a light absorber housing.

[0016] Preferably, the mounting structure specifically includes a mounting plate, a spring and a substrate, the mounting plate is arranged on the top seat, the substrate is connected to the mounting plate through the spring, and the sensor module is arranged on the substrate.

[0017] Preferably, a reinforcing rib is provided on a side of the substrate close to the concrete specimen, and the photosensitive sensor and the light propagation unit are both located inside a groove formed by the reinforcing rib and the substrate.

[0018] Preferably, a flushing nozzle of an external flushing pump is further provided on one side of the substrate close to the concrete specimen. When the flushing pump is turned on, water flows out of the flushing nozzle to flush the sensor module.

[0019] Preferably, the effectiveness detection part includes a water outlet pipe and a water body detection device; the water body detection device is located outside the water seepage detection part, the water outlet pipe is used to connect the water storage space and the water body detection device, and the seepage water in the water storage space is transmitted to the water body detection device through the water outlet pipe for detection.

[0020] Preferably, an annular auxiliary airbag is provided on the base. In the detection state, the auxiliary airbag and the airbag are inflated and abut against each other and are both wrapped around the outer periphery of the concrete.

[0021] Preferably, it also includes a control module; the control module is connected to the water detection module and the effectiveness detection part respectively; when the control module obtains a signal from the water detection module that water seepage in the water storage space is detected, the processor module controls the effectiveness detection part to start.

[0022] The present invention proposes a method for modifying a traditional anti-seepage detection system, wherein the traditional anti-seepage detection system comprises a water seepage detection part. The modification method is to add an effectiveness detection part to the traditional anti-seepage detection system to obtain the concrete anti-seepage detection system.

[0023] The advantages of the present invention are:

[0024] (1) The concrete impermeability detection system proposed by the present invention adds an effectiveness detection part on the basis of the traditional impermeability detection system, which is used to detect the components in the seepage water body. In this way, it is only necessary to add a macromolecular impermeability reagent that cannot be filtered out by a qualified concrete specimen to the input high-pressure water, and then the seepage path of the input high-pressure water can be obtained based on the detection results of the seepage water body. In this way, the impermeability detection is carried out in combination with the filtration characteristics of concrete, and the seepage path is further detected after the seepage occurs, thereby eliminating the occurrence of the detection system itself causing the false judgment of concrete unqualified due to seepage.

[0025] (2) In the present invention, the sensor module determines the characteristics of the seepage water body by detecting the changes of light in different water bodies, thereby determining whether there is an anti-seepage agent in the seepage water body; such as light diffuse reflection detection or light transmittance detection. The photoelectric device has a small structure, low power consumption, and fast response speed. The present invention uses photoelectric reaction to test the seepage water body, which greatly improves the efficiency and accuracy of the seepage path detection.

[0026] (3) In the present invention, the light propagation unit provides one-way unidirectional light, further improving the detection accuracy of the photosensor. The water body detection module is realized by the housing of the light source and the housing of the light absorber in the light propagation unit, further improving the space utilization efficiency and simplifying the detection structure.

[0027] (4) In the present invention, the effectiveness detection part has an independent structure and is easy to install, and the existing water seepage detection part can be directly modified. The mounting plate is used to provide a structure connected to the top seat, the base plate is used to provide an installation position for the sensor module, and the spring realizes the spatial adaptability of the mounting structure, thereby realizing the spatial adaptability of the entire effectiveness detection part, which is convenient for adapting to the detection of concrete specimens of different heights.

[0028] (5) The setting of the reinforcing ribs provides a space for the sensor module to prevent the sensor module from being squeezed by the top seat and the concrete specimen, thereby ensuring the safety and reliability of the effectiveness detection part. The setting of the flushing nozzle can flush the sensor module in time to prevent the residual substances in the sensor module and the water storage space from affecting the accuracy of the next test.

[0029] (6) In the present invention, the effectiveness detection part can also lead the seepage water out of the water storage space, and then conduct targeted detection through an external water body detection device to provide professional detection results and further improve the detection accuracy.

[0030] (7) In the present invention, the auxiliary airbag is provided so that the airbag on the inner circumference of the casing can be safely retracted after being deflated. The natural separation of the auxiliary airbag and the airbag after deflation facilitates the disassembly of the concrete specimen, thereby improving the convenience of concrete loading and unloading and the safety of the airbag structure.

[0031] (8) In the present invention, through the setting of the control module, the water body detection in the water storage space and the water seepage path detection are activated in a forward and backward manner, avoiding the invalid activation of the effectiveness detection part for a long time, which saves energy and prolongs the use time of the system; at the same time, it ensures that the effectiveness detection is activated in time after the water seepage occurs, realizing seamless connection in detection and improving detection efficiency.

[0032] (9) The modification method of the traditional anti-seepage detection system proposed in the present invention only requires simple modification and the addition of an effectiveness detection part; it can overcome the defect that the traditional anti-seepage detection system cannot determine the seepage path, that is, it realizes the upgrading of the anti-seepage detection system and avoids the waste of the existing structure of the anti-seepage detection system. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 (a) is an open diagram of the sealing assembly structure of the current mainstream fully automatic concrete impermeability tester;

[0034] FIG1(b) is a cross-sectional view of the state of FIG1(a);

[0035] Figure 1(c) is a cross-sectional view of the sealing assembly of the current mainstream fully automatic concrete impermeability tester;

[0036] Figure 2 Installation diagram for effectiveness test section;

[0037] Figure 3 is a schematic diagram of the sensor module;

[0038] Figure 4 It is the location diagram of the effectiveness test part, top seat and concrete specimen;

[0039] Figure 5 It is a cross-sectional view of the concrete anti-seepage detection system proposed by the present invention in the detection state;

[0040] Figure 6 This is the structural diagram of the sensor module;

[0041] Figure 7 This is a bottom view of the sensor module;

[0042] Figure 8 It is a top view of the sensor module;

[0043] Illustration: 1-base; 10-flushing channel; 2-air bag; 20-air nozzle; 3-top seat; 30-flushing port; 4-casing; 5-concrete specimen; 61-mounting plate; 62-spring; 63-base plate; 631-reinforcement rib; 7-sensor module; 71-photosensitive sensor; 72-light source; 73-light absorber; 8-flushing nozzle; A-wire; B-water pipe. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] A concrete anti-seepage detection system proposed in this embodiment includes a water seepage detection part and an effectiveness detection part;

[0046] The water seepage detection part fully wraps the concrete specimen in the detection state, so that the concrete specimen is blocked at the outlet of the flushing channel 10, and a water storage space is formed on the side of the concrete specimen away from the flushing channel 10, and the water storage space is provided with a water body detection module. The water body detection module can adopt a bimetallic structure constituting positive and negative electrodes. The two metal structures are arranged in the water storage space and separated from each other. The metal structures are externally connected to the positive and negative poles of the power supply. When water enters the water storage space, the metal structure is turned on, and the circuit where the metal structure is located generates current, thereby realizing water inflow detection in the water storage space through the detection of the circuit current. In specific implementation, a water seepage indicator light or other signal sending device located outside the detection system can be set on the circuit where the metal structure is located, so as to provide a water seepage warning.

[0047] The effectiveness detection part is used to detect whether the water in the water storage space contains the anti-seepage agent added to the water inlet of the flushing channel 10.

[0048] Referring to Figures 1(a), 1(b) and 1(c), the water seepage detection component can adopt a traditional anti-seepage detection system, which includes: a base 1, a casing 4 and a top seat 3. An air bag 2 is provided on the inner periphery of the casing 4, and a flushing channel 10 connected to a high-pressure pump is provided on the base; in the detection state, the concrete specimen is blocked at the outlet of the flushing channel 10; the base 1, the casing 4 and the top seat 3 cooperate with each other to form a test cavity covering the concrete specimen; the air bag 2 surrounds the concrete specimen, and the air bag 2 is inflated through the air nozzle 20 to fill the gap in the test cavity; the high-pressure pump fills water into the flushing channel 10, and the top seat 3 presses the concrete specimen and the casing 4; a water storage space is formed between the top seat 3 and the concrete specimen.

[0049] Thus, during the test, the concrete specimen is placed on the base 1, and then the casing 4 and the top seat 3 are moved downward to cooperate with each other, and then the airbag 2 is inflated. At this time, the test cavity is filled with the airbag 2 and the concrete specimen; after the high-pressure pump is turned on, water is introduced into the flushing water channel 10, and the water pressure is maintained for a period of time, which can be operated according to relevant standards; when the concrete specimen is qualified, it should be watertight, and the airbag 2 can also completely fill the gap in the test cavity if it is intact. Therefore, if the test is completed and there is no water in the water storage space, it proves that the concrete specimen is qualified and the device is intact.

[0050] After the test is completed, the airbag 2 needs to be deflated, and then the base 1, the casing 4, and the top seat 3 are separated to remove the concrete specimen 5. However, because the airbag 2 fills all gaps when inflated, it is possible that part of the body of the airbag 2 is pressed by the concrete specimen after deflation, which makes it difficult to disassemble and assemble, and may cause damage to the airbag 2. In view of this situation, in this embodiment, it is considered to shorten the airbag 2 in the height direction, and then set the auxiliary airbag 2 on the base 1, which is equivalent to dividing the airbag 2 into two parts in the height direction on the traditional anti-seepage detection system, the upper section is still set on the casing 4, and the lower section is set on the base 1. In this way, the airbag 2 and the auxiliary airbag 2 form a complete airbag wrapping structure surrounding the concrete specimen after inflation, but the airbag 2 of the upper section abuts against the auxiliary airbag 2, and the airbag 2 of the upper section will not extend to the bottom of the concrete specimen 5; after the airbag 2 and the auxiliary airbag 2 are deflated, the airbag 2 has no risk of being pressed by the concrete specimen 5, and the auxiliary airbag 2 shrinks to the bottom of the concrete specimen, which is convenient for separation. In this way, the airbag 2 is arranged in sections, which solves the risk of damage to the airbag 2 without affecting the complexity of the device operation.

[0051] During the test, if the concrete specimen fails to meet the requirements and water seeps through, or if the airbag 2 cannot completely fill the test cavity, or if the airbag itself is damaged, a channel can be provided for the water in the flushing channel 10 to enter the water storage space. Therefore, during the test, when the water detection module detects the presence of water in the water storage space, it is necessary to further distinguish through the effective detection part whether the water in the flushing channel 10 penetrates into the water storage space through the concrete specimen or passes through the gap of the airbag 2.

[0052] The following are various implementations of the validity detection part.

[0053] Reference Figure 2-Figure 8 The first effectiveness detection part includes: a mounting structure and a sensor module 7. The sensor module 7 is mounted on the top seat through the mounting structure. In the detection state, the sensor module 7 is located in the water storage space.

[0054] Reference Figure 3 The sensor module 7 includes: a light propagation unit and a photosensor 71; the light propagation unit is used to emit light, and the photosensor 71 is used to detect light; the photosensor 71 is connected to an external output module; when the photosensor 71 generates a photoelectric reaction, the output module outputs an indication signal representing water seepage of the concrete specimen.

[0055] In a specific implementation, the light propagation unit is composed of a light source 72 and a light absorber 73. The light absorber 73 is located in the light emitting direction of the light source 72, and the photosensitive sensor 71 is located between the light source 72 and the light absorber 73. The light absorber 73 is a miniature optical darkroom, that is, a device with an optical darkroom. After the light enters the light absorber 73, it is completely absorbed, and no reflected light is emitted from the light absorber 73. The setting of the light absorber 73 can prevent the light from being reflected in the seepage water body and affecting the detection result.

[0056] The selection of the photosensor 71 is related to the selection of the anti-osmotic agent.

[0057] If the anti-seepage reagent selects a pigment, the photosensitive sensor can select a diffuse reflection sensor of the corresponding color. For example, when the water entering the flushing channel 10 is a red water body with a red reagent added, the photosensitive sensor 71 can select an infrared diffuse reflection sensor, and the light source 72 can be set as a white light source with a lens set in the light output direction, so that the light source 72 emits a parallel beam of white light. Considering that light is more likely to undergo infrared diffuse reflection in red water bodies, it can be seen that when the infrared diffuse reflection sensor generates current, it indicates that infrared diffuse reflection occurs in the seepage water body, indicating that the seepage water body is a red water body. It can be seen that the water body of the flushing channel 10 enters the water storage space but does not pass through the concrete specimen, indicating that the sealing of the seepage detection part is not rigorous and the detection result is invalid. On the contrary, if the water detection module detects that there is water in the water storage space, but the infrared diffuse reflection sensor does not generate current, it means that the red pigment in the seepage water body is filtered, proving that the water in the flushing channel 10 penetrates into the water storage space through the concrete specimen, indicating that the concrete specimen seepage detection result is valid.

[0058] If the anti-seepage reagent is selected from substances such as phenol, hydrocarbon, alcohol, carboxylic acid, carbon black, organic matter, etc. that increase the turbidity of the water body and reduce the light transmittance of the water body, the photosensitive sensor 71 can select a light intensity sensor such as a photodiode to detect the light transmittance of the seepage water body. At this time, when water enters the water storage space and the light source 72 is turned on, if the photodiode is turned on, it proves that the turbidity of the seepage water body has decreased, and the water in the flushing channel 10 has penetrated into the water storage space through the concrete test piece, indicating that the concrete test piece water seepage detection result is valid; if the photodiode is not turned on, it proves that the turbidity of the water body has not decreased, and the water in the flushing channel 10 has entered the water storage space but has not passed through the concrete test piece, indicating that the water seepage detection part is not strictly sealed and the detection result is invalid.

[0059] It is worth noting that the detection result of the effectiveness detection part is fed back through an external device connected to the photosensor 71; for example, an indicator light can be directly set to indicate the detection result of the photosensor 71, or a computer can be set to collect the detection result of the photosensor 71 and feed back. The feedback of the detection result of the photosensor 71 can be achieved through existing technologies and will not be elaborated here.

[0060] Reference Figure 4 , Figure 5 In the first effectiveness detection part, the mounting structure specifically includes a mounting plate 61, a spring 62 and a base plate 63. The mounting plate 61 is arranged on the top seat 3, the base plate 63 is connected to the mounting plate 61 through the spring 62, and the sensor module 7 is arranged on the base plate 63. In this way, the spring 62 can be contracted to adapt to concrete specimens of different heights; and the sensor module 7 always abuts against the concrete specimen, so that when water seepage just occurs in the water storage space, detection can be carried out in time, thereby improving detection efficiency.

[0061] It is worth noting that the water detection module is also arranged on the substrate 63 of the mounting structure, so that the water detection structure is against the concrete test piece in the detection state and can be turned on immediately, thereby improving the detection efficiency.

[0062] In specific implementation, in the first effectiveness detection part, the two metal structures included in the water detection module can be directly set to be respectively implemented as the outer shell of the light source 72 and the outer shell of the light absorber 73 to simplify the sensor structure.

[0063] Reference Figure 6 , Figure 7 In the first effectiveness detection part, a reinforcing rib 631 is provided on the side of the substrate 63 close to the concrete specimen 5, and the photosensitive sensor 71 and the light propagation unit are both located in the groove formed by the reinforcing rib 631 and the substrate 63. In this way, in the detection state, the reinforcing rib 631 abuts against the end surface of the concrete specimen 5, providing space for the light propagation unit and the photosensitive sensor 71, thereby preventing the light propagation unit and the photosensitive sensor 71 from being squeezed and damaged by the concrete specimen 5 and the top cover 3.

[0064] The second effectiveness detection part includes: a mounting structure and a sensor module 7. The sensor module 7 is mounted on the top seat through the mounting structure. In the detection state, the sensor module 7 is located in the water storage space. Different from the first effectiveness detection part, the sensor module 7 in the second effectiveness detection part is the positive and negative electrodes of the external power supply. When the water storage space is filled with water, the positive and negative electrodes are connected through the seepage water body, so that the conductivity of the seepage water body is judged by the current, and the change of the conductivity of the seepage water body is observed to judge whether the seepage water body is water entering the water storage space through the gap or filtered water passing through the concrete specimen. For example, the anti-seepage reagent uses acids, bases, and salts that increase the conductivity of the water body. At this time, the conductivity of the seepage water body can be calculated by the current intensity of the circuit where the positive and negative electrodes are located, and it can be judged whether there are acids, bases, and salts in the seepage water body according to the conductivity; if yes, it means that the seepage water body has not been filtered by the concrete specimen, and the seepage detection result is invalid; otherwise, it means that the seepage water body has passed through the concrete specimen, and the seepage detection result is valid.

[0065] It is worth noting that the second validity detection part is implemented as positive and negative electrodes, and the water detection module is also implemented as positive and negative electrodes. The two can be combined into one, that is, the water detection module is directly used to implement the function of the second validity detection part.

[0066] The above first effectiveness detection part and the second effectiveness detection part detect the characteristics of the seepage water in the water storage space, so as to determine whether the seepage is effective. The water storage space is small and the error that can be accommodated is also small, so the residual water in the water storage space can easily affect the accuracy of the next detection. In this embodiment, a flushing nozzle 8 of an external flushing pump can be further provided on the side of the substrate 63 close to the concrete specimen. When the flushing pump is turned on, the flushing nozzle 8 discharges water to flush the sensor module 7 to ensure the accuracy of the next detection result. The water pipe B connected to the flushing nozzle 8 can be directly connected to the flushing pump through the flushing port 30 provided on the top cover 3, without the need to open additional holes on the top cover 3.

[0067] The wire A connected to the sensor module 7 can also directly pass through the top cover 3 to be connected to an external device.

[0068] The third effectiveness detection part includes a water outlet pipe and a water body detection device, the water body detection device is used to detect whether there is an anti-seepage agent in the water body; the water outlet pipe is used to connect the water storage space and the water body detection device so as to input the seepage water in the water storage space into the water body detection device for detection.

[0069] The water body detection device can be implemented using existing devices, such as using molecular detection methods to detect water body components to determine whether there are anti-seepage reagent components; or detecting changes in the shape of the water body caused by the anti-seepage reagent, such as detecting the diffuse reflection of the water body, conductivity, transmittance, turbidity, etc.

[0070] Of course, it is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numerals in the claims should not be regarded as limiting the claims involved.

[0071] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0072] The techniques, shapes, and structural parts not described in detail in the present invention are all well-known techniques.

Claims

1. A concrete impermeability detection system, characterized in that: It includes water seepage detection part and effectiveness detection part; The water seepage detection part fully wraps the concrete test piece in the detection state, so that the concrete test piece is blocked at the outlet of the flushing channel (10), and a water storage space is formed on the side of the concrete test piece away from the flushing channel (10), and a water body detection module is provided in the water storage space; The effectiveness detection part is used to detect whether the water in the water storage space contains the anti-seepage agent added to the water inlet of the flushing channel (10).

2. The concrete anti-seepage detection system according to claim 1, characterized in that: The water seepage detection component comprises: a base (1), a casing (4) and a top seat (3); an air bag (2) is arranged on the inner periphery of the casing (4), and a water flushing channel (10) connected to a high-pressure pump is arranged on the base; in a detection state, a concrete specimen is blocked at the outlet of the water flushing channel (10); the base (1), the casing (4) and the top seat (3) cooperate with each other to form a test cavity covering the concrete specimen, and the air bag (2) is inflated to fill the gap in the test cavity; the high-pressure pump fills water into the water flushing channel (10), and the top seat (3) presses the concrete specimen and the casing (4) to prevent the concrete specimen from leaking. The invention relates to a concrete test piece having a water storage space formed between the top seat (3) and the concrete test piece; the effectiveness detection part comprises: a mounting structure and a sensor module (7); the sensor module (7) is mounted on the top seat through the mounting structure, and the sensor module (7) is located in the water storage space; the sensor module (7) comprises a light propagation unit and a photosensitive sensor (71); the photosensitive sensor (71) is located on the light propagation path of the light propagation unit, and the photosensitive sensor (71) determines whether the seepage water body has an anti-seepage agent according to the light detection situation.

3. The concrete anti-seepage detection system according to claim 2, characterized in that: The light propagation unit is composed of a light source (72) and a light absorber (73), wherein the light absorber (73) is located in the light emitting direction of the light source (72), and the light sensitive sensor (71) is located between the light source (72) and the light absorber (73); the light source (72) is used to emit a parallel light beam of white light; and the light sensitive sensor (71) is a sensor for detecting diffuse reflection of colored light or a light intensity sensor.

4. The concrete anti-seepage detection system according to claim 3, characterized in that: The water body detection module comprises two metal structures respectively connected to the positive and negative electrodes of the external power supply module. When water enters the water storage space, the circuits where the two metal structures are located are connected to generate water seepage detection signals. The two metal structures are respectively implemented as the outer shell of the light source (72) and the outer shell of the light absorber (73).

5. The concrete anti-seepage detection system according to claim 2, characterized in that: The mounting structure specifically comprises a mounting plate (61), a spring (62) and a substrate (63); the mounting plate (61) is arranged on the top seat (3); the substrate (63) is connected to the mounting plate (61) via the spring (62); and the sensor module (7) is arranged on the substrate (63).

6. The concrete anti-seepage detection system according to claim 5, characterized in that: A reinforcing rib (631) is provided on one side of the substrate (63) close to the concrete specimen (5); the photosensitive sensor (71) and the light propagation unit are both located inside a groove formed by the reinforcing rib (631) and the substrate (63); a flushing nozzle (8) of an external flushing pump is also provided on one side of the substrate (63) close to the concrete specimen; when the flushing pump is turned on, the flushing nozzle (8) discharges water to flush the sensor module (7).

7. The concrete anti-seepage detection system according to claim 2, characterized in that: The effectiveness detection part includes a water outlet pipe and a water body detection device; the water body detection device is located outside the water seepage detection part, and the water outlet pipe is used to connect the water storage space and the water body detection device. The seepage water in the water storage space is transmitted to the water body detection device through the water outlet pipe for detection.

8. The concrete anti-seepage detection system according to claim 2, characterized in that: The base (1) is provided with an annular auxiliary airbag (2). In the detection state, the auxiliary airbag (2) and the airbag (2) are inflated and abut against each other and are both wrapped around the outer circumference of the concrete test piece.

9. The concrete anti-seepage detection system according to claim 1, characterized in that: It also includes a control module; the control module is connected to the water detection module and the effectiveness detection part respectively; when the control module obtains a signal that the water detection module detects water seepage in the water storage space, the processor module controls the effectiveness detection part to start.

10. A method for modifying a traditional anti-seepage detection system, characterized in that: The conventional anti-seepage detection system comprises a water seepage detection part; the modification method is to add an effectiveness detection part to the conventional anti-seepage detection system to obtain the concrete anti-seepage detection system as described in any one of claims 1 to 9.

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