Device for testing self-repairing performance of self-healing matrix

Abstract

The utility model relates to the technical field of civil engineering, and provides a self-healing matrix self-repairing performance testing device which comprises a testing body and a loading part, a supporting part is arranged in the middle of the testing body, and the supporting part is used for supporting a self-healing matrix to be tested; the loading part is connected to the test body and is used for providing a high-pressure liquid environment for the inner cavity of the upper part of the test body. According to the self-healing matrix self-repairing performance testing device provided by the embodiment of the utility model, a high-pressure liquid environment is provided for the inner cavity at the upper part of the testing body through the loading part, so that a continuous liquid high-pressure effect is simulated to be applied to a self-healing matrix to be tested; and the self-repairing performance of the to-be-tested self-healing matrix under the dynamic impact of the high-pressure liquid environment is further realized.

Description

Technical Field

[0001] The utility model relates to the technical field of civil engineering, in particular to a self-healing matrix self-repairing performance testing device. Background Art

[0002] The self-healing property of self-healing mortar refers to the ability of mortar to repair itself or partially repair its structure and function after being damaged. This property is of great significance for extending the life of the structure, reducing maintenance costs and improving the sustainability of the material.

[0003] In the prior art, the repair performance test of self-healing mortar is to test the repair of mechanical properties and impermeability after the mortar specimen is destroyed or placed in standard curing or natural curing for a period of time, so as to complete the self-healing performance test of the mortar specimen.

[0004] However, the repair performance test of existing self-healing mortar adopts "static" repair, which cannot achieve self-healing performance testing close to the actual engineering environment. Utility Model Content

[0005] The utility model provides a self-healing mortar self-repairing performance testing device, which is used to solve the defect that the prior art cannot realize the self-repairing performance test close to the actual engineering environment.

[0006] The utility model provides a self-healing matrix self-repair performance testing device, comprising:

[0007] A test body, wherein the middle portion of the test body has a support component, and the support component is used to support the self-healing matrix to be tested;

[0008] A loading component is connected to the test body, and is used to provide a high-pressure liquid environment to the upper inner cavity of the test body.

[0009] According to a self-healing matrix self-repair performance testing device provided in an embodiment of the utility model, the test body includes a tank body and a tank cover detachably connected to the tank body, and a sealing member is arranged between the tank body and the tank cover.

[0010] According to a self-healing matrix self-repair performance testing device provided by an embodiment of the utility model, the loading component includes an air pump connected to the upper part of the test body.

[0011] According to a self-healing matrix self-repair performance testing device provided by an embodiment of the utility model, the upper part of the test body is provided with a closable liquid injection port.

[0012] According to an embodiment of the utility model, a self-healing matrix self-repair performance testing device is provided, which also includes a pressure measuring element connected to the upper part of the test body.

[0013] According to a self-healing matrix self-repair performance testing device provided by an embodiment of the utility model, the lower part of the test body is provided with an observation window.

[0014] According to a self-healing matrix self-repair performance testing device provided by an embodiment of the utility model, the upper part of the test body has a closable exhaust port, and / or,

[0015] The lower part of the test body is provided with a liquid discharge port.

[0016] According to a self-healing matrix self-repair performance testing device provided by an embodiment of the utility model, the supporting component is a protrusion arranged on the side wall of the test body.

[0017] According to a self-healing matrix self-repair performance testing device provided by an embodiment of the utility model, the upper side wall of the test body has a flexible sealing member for sealing the outer side wall of the self-healing matrix to be tested.

[0018] According to a self-healing matrix self-repair performance testing device provided by an embodiment of the utility model, the loading component is a hydraulic pump.

[0019] The self-healing performance testing device for a self-healing matrix provided in an embodiment of the utility model provides a high-pressure liquid environment to the upper inner cavity of the test body through a loading component to simulate the application of continuous liquid high pressure to the self-healing matrix to be tested, thereby realizing the self-healing performance of the self-healing matrix to be tested under the dynamic impact of the high-pressure liquid environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural schematic diagram of a self-healing matrix self-repair performance testing device provided in an embodiment of the utility model.

[0022] Reference numerals:

[0023] 1. Test body; 11. Tank body; 12. Tank cover; 13. Support component; 14. Liquid filling port; 15. Liquid discharge port; 16. Liquid;

[0024] 2. Air pump;

[0025] 3. Pressure measuring element;

[0026] 4. The self-healing substrate to be tested. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0028] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] The embodiment of the utility model provides a self-healing matrix self-repair performance testing device, Figure 1 The schematic diagram of the structure of the self-healing matrix self-repairing performance testing device provided by the embodiment of the utility model is illustrated as follows: Figure 1 As shown, the self-healing performance testing device includes a test body 1 and a loading component. The middle part of the test body 1 has a supporting component 13, and the supporting component 13 is used to support the self-healing matrix 4 to be tested; the loading component is connected to the test body 1, and the loading component is used to provide a high-pressure liquid environment to the upper inner cavity of the test body 1.

[0033] It can be understood that the self-healing matrix 4 to be tested is disposed on the supporting component 13 , so that the self-healing matrix 4 to be tested divides the interior of the test body 1 into an upper inner cavity and a lower inner cavity.

[0034] It should be noted that when the self-healing matrix 4 to be tested is used in scenarios such as dams or oil pipelines, under the impact of flowing water, a high-pressure water flow will be formed in the cracks of the self-healing matrix 4 to be tested. Therefore, this embodiment provides a high-pressure liquid environment simulating the high-pressure water flow to the upper inner cavity of the test body 1 through a loading component, so as to achieve continuous liquid high pressure to the self-healing matrix 4 to be tested, and then realize the self-healing performance test of the self-healing matrix 4 to be tested in the high-pressure liquid environment.

[0035] It should be noted that the self-healing substrate 4 to be tested may be a mortar test block, a concrete mortar test block or other cement-based materials with self-repairing ability.

[0036] The self-healing performance testing device for a self-healing matrix provided in an embodiment of the utility model provides a high-pressure liquid environment to the upper inner cavity of the test body 1 through a loading component, so as to simulate the application of continuous liquid high pressure to the self-healing matrix 4 to be tested, thereby realizing the self-healing performance of the self-healing matrix 4 to be tested under the dynamic impact of the high-pressure liquid environment.

[0037] In one embodiment of the utility model, the supporting component 13 is a protrusion arranged on the side wall of the test body 1. The protrusion can be a full circle of protrusion structure arranged on the inner wall of the test body 1; the protrusion can also be a plurality of protrusions arranged at intervals along the same circumferential direction, and the support of the self-healing substrate 4 to be tested is achieved by multiple protrusions.

[0038] In one embodiment of the present invention, Figure 1 As shown, the test body 1 includes a tank body 11 and a tank cover 12 . The tank body 11 is a hollow structure with an upper end opening, and the tank cover 12 is detachably connected to the upper end opening of the tank body 11 .

[0039] It can be understood that the tank cover 12 and the tank body 11 are detachably connected, so that the self-healing matrix 4 to be tested can be placed from the upper opening of the tank body 11 .

[0040] In this embodiment, the tank body 11 and the tank cover 12 are connected by threads, which has the advantages of simple structure, reliable connection and convenient assembly and disassembly.

[0041] Furthermore, a seal is provided between the tank body 11 and the tank cover 12 to achieve a sealed connection between the tank body 11 and the tank cover 12, thereby ensuring the sealing of the upper inner cavity of the test body 1, and further ensuring the stability of the high-pressure liquid environment in the upper inner cavity of the test body 1.

[0042] In one embodiment of the present invention, the loading component includes an air pump 2 connected to the upper part of the test body 1 .

[0043] For example, the pressure can be adjusted by adjusting the valve of the air pump 2 , for example, by adjusting the valve of the air pump 2 , an air pressure of 0.2-0.8 MPa can be provided for the upper inner cavity of the test body 1 .

[0044] It can be understood that the tank cover 12 and the tank body 11 are detachably connected, and the upper end opening of the tank body 11 can be used as a liquid injection port. After the tank cover 12 is removed from the tank body 11, the self-healing matrix 4 to be tested is placed in the tank body 11 through the upper end opening of the tank body 11, and the self-healing matrix 4 to be tested is supported by the supporting component 13. After the self-healing matrix 4 to be tested is placed, liquid 16 is injected into the upper inner cavity of the test body 1 through the upper end opening of the tank body 11, and then the tank cover 12 is covered, and the upper inner cavity of the test body 1 is pressurized by the air pump 2 to form a high-pressure liquid environment in the upper inner cavity of the test body 1.

[0045] It should be noted that when injecting liquid 16 into the upper inner cavity of the test body 1 through the upper end opening of the tank body 11, if more liquid 16 is needed, the tank cover 12 needs to be disassembled, which makes the liquid adding process more complicated, and the repeated disassembly of the tank cover 12 and the tank body 11 will also affect the sealing of the connection between the tank cover 12 and the tank body 11. Furthermore, in this embodiment, a closable liquid injection port 14 is provided at the upper part of the test body 1, and liquid 16 can be injected into the upper inner cavity of the test body 1 through the liquid injection port 14.

[0046] It can be understood that the upper opening of the tank body 11 serves as the installation port for the self-healing matrix 4 to be tested, and the liquid injection port 14 on the upper part of the test body 1 is used to inject liquid, thereby facilitating the control of the amount of liquid injected into the upper inner cavity of the test body 1.

[0047] For example, a liquid injection port 14 is opened on the upper side wall of the tank body 11, and the liquid injection port 14 is connected to a liquid inlet pipe. A first control component is provided on the liquid inlet pipe, and the first control component is used to control the on-off of the liquid inlet pipe, thereby realizing the opening and closing of the liquid injection port 14.

[0048] It is understandable that after a set amount of liquid 16 is injected into the upper inner cavity of the test body 1 through the liquid inlet tube, the liquid inlet tube is disconnected by controlling the first control member to ensure the sealing of the upper inner cavity of the test body 1 .

[0049] In another embodiment of the utility model, the loading component can also be a hydraulic pump, which injects pressurized liquid into the upper inner cavity of the test body 1 through the hydraulic pump to provide a high-pressure liquid environment for the upper inner cavity of the test body 1, so as to carry out self-healing performance test of the self-healing matrix 4 to be tested in the high-pressure liquid environment.

[0050] It should be noted that the self-healing performance test of the self-healing matrix is ​​to continuously provide a high-pressure liquid environment within a preset time period. During the preset time period, the hydraulic pump provides a high-pressure environment for the upper inner cavity of the test body 1 while continuously injecting pressurized liquid 16 into the upper inner cavity of the test body 1. It should be noted that the pressure of the air pump 2 is less than the pressure of the hydraulic pump, and the air pump 2 is preferably used to simulate a high-pressure liquid environment of a smaller value under dynamic impact.

[0051] In one embodiment of the utility model, the testing device includes a pressure measuring element 3 connected to the upper part of the test body 1. When the loading component applies pressure to the upper inner cavity of the test body 1, the pressure of the upper inner cavity of the test body 1 is monitored in real time through the pressure measuring element 3 so that the upper inner cavity of the test body 1 reaches a preset pressure value.

[0052] It is understandable that when the self-healing performance test is performed on the self-healing matrix 4 to be tested in the test body 1, the pressure in the upper inner cavity of the test body 1 is monitored in real time by the pressure measuring element 3 to ensure the accuracy of the pressure during the test process.

[0053] For example, the pressure measuring element 3 is a pressure gauge, and the pressure gauge is fixedly and sealedly connected to the test body 1 by using a gasket and a nut.

[0054] In one embodiment of the present invention, the upper portion of the test body 1 has a closable exhaust port.

[0055] It can be understood that after the test of the self-healing matrix 4 to be tested in the test body 1 is completed, the self-healing matrix 4 to be tested needs to be taken out. Since the upper inner cavity of the test body 1 is a high-pressure environment, in order to facilitate opening the tank cover 12, an exhaust port is opened at the upper part of the test body 1. By opening the exhaust port, the air pressure in the upper inner cavity of the test body 1 is made consistent with the outside world, which makes it convenient to remove the tank cover 12 and take out the self-healing matrix 4 to be tested.

[0056] It should be noted that when the self-healing performance test is performed on the self-healing matrix 4 to be tested, the exhaust port is in a closed state; after the self-healing performance test is completed, the exhaust port is in an open state. For example, an openable plugging cover can be provided at the exhaust port position of the test body 1, and when the plugging cover is connected to the exhaust port, a seal is provided between the two to ensure the stability of the high-pressure liquid environment in the upper inner cavity of the test body 1.

[0057] It should be noted that the liquid injection port 14 on the upper part of the test body 1 can also be used as an exhaust port, so the exhaust port on the upper part of the test body 1 can be omitted. It should be noted here that the liquid injection port 14 is connected to a liquid inlet pipe, and the first control member is used to control the on and off of the liquid inlet pipe, thereby realizing the opening and closing of the liquid injection port 14, and also realizing the opening and closing of the exhaust.

[0058] In one embodiment of the present invention, a drain port 15 is provided at the lower portion of the test body 1 .

[0059] It can be understood that when conducting a self-healing performance test on the self-healing matrix, the liquid 16 in the upper inner cavity of the test body 1 will drip through the self-healing matrix to the lower inner cavity of the test body 1. In order to collect the liquid 16 in the lower inner cavity of the test body 1, a drain port 15 is provided at the lower part of the test body 1, and the liquid 16 is collected by a collector connected to the drain port 15.

[0060] For example, the drain port 15 is connected to a drain pipe, and a second control component is provided on the drain pipe. The second control component is used to control the on-off of the drain pipe, thereby realizing the opening and closing of the drain port 15 .

[0061] In one embodiment of the present invention, the lower portion of the test body 1 has an observation window, through which the liquid 16 dripping from the self-healing matrix 4 to be tested can be observed, so as to implement the self-repairing performance test of the self-healing matrix.

[0062] In one embodiment of the present invention, the upper side wall of the test body 1 has a flexible seal. When the self-healing matrix 4 to be tested is supported on the supporting component 13, the outer side wall of the self-healing matrix 4 to be tested and the inner side wall of the test body 1 are sealed by the flexible seal.

[0063] In a specific embodiment of the present invention, a self-healing matrix self-repairing performance testing device includes a testing body 1 , a loading component and a pressure measuring element 3 .

[0064] The test body 1 includes a tank body 11 and a tank cover 12. The tank body 11 is a hollow structure with an upper opening. The tank cover 12 is threadedly connected to the upper opening of the tank body 11, and a seal is provided between the tank body 11 and the tank cover 12. In this embodiment, the seal is a sealing rubber ring.

[0065] The middle inner wall of the tank body 11 is provided with a supporting component 13 with a full circle of protrusions, which is used to support the self-healing substrate 4 to be tested. The cross-section of the tank body 11 is adapted to the cross-section of the self-healing substrate 4 to be tested, so that when the self-healing substrate 4 to be tested is placed on the supporting component 13, the outer peripheral side of the self-healing substrate 4 to be tested abuts against the inner wall of the tank body 11.

[0066] A liquid injection port 14 is provided at the upper portion of the tank body 11, and the liquid injection port 14 is connected to a liquid inlet pipe. A first control component is provided on the liquid inlet pipe. The first control component is used to control the on-off of the liquid inlet pipe, thereby realizing the opening and closing of the liquid injection port 14. The first control component can be a snap-fit ​​structure provided on the liquid inlet pipe.

[0067] The lower part of the tank body 11 is provided with a drain port 15 , and the drain port 15 is connected to a collector through a drain pipe, and the collector can be a waste water bucket; the lower part of the tank body 11 is also provided with an observation window.

[0068] The loading component includes an air pump 2 connected to the upper part of the test body 1, and the air pump 2 is connected to the upper part of the tank body 11 through a rubber tube.

[0069] The pressure measuring element 3 is a pressure gauge which is sealed and arranged on the tank cover 12 .

[0070] The use process of the self-healing matrix self-repair performance testing device of this embodiment is as follows:

[0071] The self-healing matrix 4 (test block) to be tested is subjected to penetration damage in accordance with the standard GB / T 50082-2009. The damaged self-healing matrix 4 to be tested is wrapped in wax and placed on the supporting part 13 of the tank body 11. A set amount of liquid 16, such as water, is injected into the upper inner cavity of the test body 1 through the upper end opening of the tank body 11, and the tank cover 12 is screwed to the upper end opening of the tank body 11. The first control component is used to control the liquid inlet pipe to disconnect, and the air pump 2 is started to provide a high-pressure environment for the tank body 11. By adjusting the valve of the air pump 2, the pressure indication is 0.2MPa and maintained for 1 hour, and then the pressure is continued to be increased at a step frequency of 0.2MPa and maintained for 1 hour until droplets appear at the bottom of the self-healing matrix 4 to be tested and the pressure is maintained. When water no longer drips from the bottom of the self-healing matrix 4 to be tested or the liquid 16 in the upper inner cavity of the test body 1 has all flowed out, turn off the air pump 2, open the first control component, and when the upper inner cavity of the test body 1 to be tested is consistent with the outside world, rotate and remove the tank cover 12, take out the self-healing matrix 4 to be tested, and complete the self-healing performance test of the healing matrix to be tested.

[0072] It should be noted that in the fields of dams or oil pipelines, cracks will appear in the concrete structure, and high-pressure and high-speed water flow will form in the cracks. The self-healing matrix self-repairing performance testing device of this embodiment can detect the self-repairing effect of self-healing matrix such as mortar or concrete under continuous water pressure, especially for testing the self-repairing effect of self-healing cement-based materials under continuous water pressure environment such as dams and oil pipelines.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A self-healing matrix self-repair performance testing device, characterized in that: include: A test body (1), wherein a support component (13) is provided in the middle of the test body (1), and the support component (13) is used to support a self-healing matrix (4) to be tested; A loading component is connected to the test body (1), and is used to provide a high-pressure liquid environment to the upper inner cavity of the test body (1).

2. The self-healing matrix self-repairing performance testing device according to claim 1, characterized in that: The test body (1) comprises a tank body (11) and a tank cover (12) detachably connected to the tank body (11), and a sealing member is provided between the tank body (11) and the tank cover (12).

3. The self-healing matrix self-repairing performance testing device according to claim 2, characterized in that: The loading component comprises an air pump (2) connected to the upper part of the test body (1).

4. The self-healing matrix self-repairing performance testing device according to claim 3, characterized in that: The upper part of the test body (1) is provided with a closable liquid injection port (14).

5. The self-healing matrix self-repairing performance testing device according to any one of claims 1 to 4, characterized in that: It also includes a pressure measuring element (3) connected to the upper part of the test body (1).

6. The self-healing matrix self-repairing performance testing device according to any one of claims 1 to 4, characterized in that: The lower part of the test body (1) is provided with an observation window.

7. The self-healing matrix self-repairing performance testing device according to any one of claims 1 to 4, characterized in that: The upper part of the test body (1) has a closable exhaust port, and / or, The lower part of the test body (1) is provided with a liquid discharge port (15).

8. The self-healing matrix self-repairing performance testing device according to any one of claims 1 to 4, characterized in that: The supporting component (13) is a protrusion arranged on the side wall of the test body (1).

9. The self-healing matrix self-repairing performance testing device according to any one of claims 1 to 4, characterized in that: The upper side wall of the test body (1) has a flexible sealing member for sealing the outer side wall of the self-healing matrix (4) to be tested.

10. The self-healing matrix self-repairing performance testing device according to claim 1, characterized in that: The loading component is a hydraulic pump.

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