Self-healing concrete self-healing performance evaluation device

Abstract

The application relates to the technical field of concrete detection, and discloses a self-healing concrete self-healing performance evaluation device, which comprises a mold, the outer surface of the mold is fixedly connected with a rectangular guide rail, and the rear end of the guide rail is slidably connected with a detection frame. The self-healing concrete self-healing performance evaluation device is characterized in that: the setting of a fan and an atomizing nozzle enables flexible control of the air-drying speed and humidity conditions of the concrete surface, thereby accelerating the formation of cracks and simulating different service environments, helping to more comprehensively evaluate the healing performance of the concrete under different conditions; the application of a metering pump enables the amount of sprayed water mist to be accurately controlled, avoiding the problem that the amount of water splashing in the traditional method is difficult to control; the setting of a cylinder and a knocking head enables automatic knocking of the mold, and the complexity and labor intensity of manual operation are greatly reduced in cooperation with a crack inducer, and the detection efficiency and accuracy are improved.

Description

Technical Field

[0001] This application relates to the field of concrete testing technology, specifically to a device for evaluating the self-healing performance of self-healing concrete. Background Technology

[0002] Concrete, as the most widely used building material in civil engineering, plays a vital role in everything from infrastructure construction to residential and commercial buildings. While widely applied, concrete also faces challenges from the natural environment and service conditions. Any safety issues that arise during its service life can have serious impacts on public health and socio-economic benefits. Therefore, real-time health monitoring and damage diagnosis of building projects, and effective assessment of the building's operational status, are of great research significance.

[0003] During concrete testing, the testing personnel need to sprinkle water on the plate every day to replenish the moisture. This is not only difficult to control the amount of water, but also quite tedious. In addition, every few hours, a rubber hammer needs to be used to tap the side of the mold containing the crack inducer to promote crack expansion, which is labor-intensive. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a device for evaluating the self-healing performance of self-healing concrete, which has advantages such as convenient operation and solves the problems mentioned in the background technology.

[0005] To achieve the above objectives, this application provides the following technical solution: a self-healing concrete self-healing performance evaluation device, including a mold, a rectangular guide rail fixedly connected to the outer surface of the mold, a testing frame slidably connected to the rear end of the guide rail, and a data acquisition unit, a power amplifier and a signal generator respectively installed on the testing frame from bottom to top; A crack inducer is installed on the inner bottom wall of the mold, and a striking frame is slidably connected to the front end of the rectangular guide rail. A cylinder is installed inside the striking frame, and a striking head is fixedly connected to the output end of the cylinder.

[0006] The above-described scheme, through the configuration of fans and atomizing nozzles, allows the device to flexibly control the drying speed and humidity conditions of the concrete surface, thereby accelerating crack formation and simulating different service environments. This helps to more comprehensively evaluate the healing performance of concrete under different conditions. The application of metering pumps allows for precise control of the amount of water sprayed, avoiding the problem of difficulty in controlling the amount of water sprayed in traditional methods. The configuration of cylinders and hammering heads enables automatic hammering of the mold. Combined with the crack inducing device, this greatly reduces the complexity and labor intensity of manual operation, and improves detection efficiency and accuracy.

[0007] Furthermore, a fan is provided above the mold.

[0008] The above method uses a fan to dry the concrete surface, thereby accelerating the formation of cracks.

[0009] Furthermore, adjustment blocks are fixedly connected to both the left and right ends of the upper surface of the mold, and an adjustment sleeve is slidably fitted onto the outer surface of each adjustment block. A connecting frame is fixedly connected to the side of the two adjustment sleeves that are close to each other, and the end of the two connecting frames that are close to each other is fixedly connected to the fan.

[0010] The above solution, with its adjustable sleeve, allows users to easily adjust the height of the fan.

[0011] Furthermore, both of the connecting frames are fixedly embedded with universal tubes, and each universal tube is fixedly connected to an atomizing nozzle at its bottom end.

[0012] The above solution, through the setting of atomizing nozzles, can achieve the purpose of spraying water mist, and the universal tube allows users to easily adjust the spray angle.

[0013] Furthermore, metering pumps are fixedly installed on the opposite sides of the two adjusting sleeves, and the output ends of the two metering pumps are fixedly connected to the universal joints adjacent to them.

[0014] The above solution, with the addition of a metering pump, allows users to easily control the amount of water sprayed.

[0015] Furthermore, the bottom of the testing frame is fixedly equipped with casters.

[0016] The above solution, with the addition of casters, improves the smoothness of movement of the testing frame.

[0017] Furthermore, a set of fixing holes are provided on the outer surface of both adjustment blocks.

[0018] The above solution, with its mounting holes, allows users to easily secure the device using external bolts.

[0019] Furthermore, a control host is installed on the back of the detection frame, and the metering pump, cylinder and fan are all electrically connected to the control host.

[0020] The above scheme allows for the control of the cylinder's striking amplitude, water spray volume, and wind speed through the settings of the control host.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects: This self-healing concrete self-healing performance evaluation device, through the setting of a fan and atomizing nozzles, enables the device to flexibly control the air drying speed and humidity conditions of the concrete surface, thereby accelerating the formation of cracks and simulating different service environments. This helps to more comprehensively evaluate the healing performance of concrete under different conditions. The application of a metering pump allows for precise control of the amount of water sprayed, avoiding the problem of difficult control of water volume in traditional methods. The setting of cylinders and hammering heads enables automatic hammering of the mold. Combined with a crack inducer, it greatly reduces the complexity and labor intensity of manual operation and improves the efficiency and accuracy of detection. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 1 ; Figure 2 This is a three-dimensional schematic diagram of the overall structure of this application. Figure 2 ; Figure 3 This is a structural diagram of the testing frame for this application; Figure 4 This is a structural diagram of the striking frame in this application.

[0023] In the picture: 1. Mold; 2. Rectangular guide rail; 3. Detection frame; 4. Data acquisition unit; 5. Power amplifier; 6. Signal generator; 7. Crack inducer; 8. Impact frame; 9. Cylinder; 10. Impact head; 11. Fan; 12. Adjusting block; 13. Adjusting sleeve; 14. Connecting frame; 15. Universal tube; 16. Atomizing nozzle; 17. Metering pump; 18. Universal wheel; 19. Fixing hole; 20. Control host. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Please see Figure 1 , Figure 2 and Figure 3The self-healing concrete self-healing performance evaluation device in this embodiment includes a mold 1. A rectangular guide rail 2 is fixedly connected to the outer surface of the mold 1. A testing frame 3 is slidably connected to the rear end of the guide rail. The testing frame 3 is equipped with a data acquisition device 4, a power amplifier 5, and a signal generator 6 from bottom to top. With the above settings, the testing frame 3 can move around the mold 1, which is convenient for users to detect cracks that may occur at different locations on the concrete surface. A caster wheel 18 is fixedly installed at the bottom of the testing frame 3. The caster wheel 18 can improve the smoothness of the movement of the testing frame 3.

[0026] Please see Figure 1 , Figure 2 and Figure 4 A crack inducer 7 is installed on the inner bottom wall of the mold 1. A striking frame 8 is slidably connected to the front end of the rectangular guide rail 2. A cylinder 9 is installed inside the striking frame 8. A striking head 10 is fixedly connected to the output end of the cylinder 9. By setting the striking head 10, the purpose of automatically striking the mold 1 can be achieved, which facilitates the generation of cracks.

[0027] Please see Figure 1 , Figure 2 and Figure 3 A blower 11 is installed above the mold 1. The blower 11 is used to dry the concrete surface to accelerate the formation of cracks. Adjusting blocks 12 are fixedly connected to both ends of the upper surface of the mold 1. An adjusting sleeve 13 is slidably fitted on the outer surface of each adjusting block 12. A connecting frame 14 is fixedly connected to the side of the two adjusting sleeves 13 that are close to each other. The end of the two connecting frames 14 that are close to each other is fixedly connected to the blower 11. The adjusting sleeve 13 allows the user to easily adjust the height of the blower 11. A set of fixing holes 19 are opened on the outer surface of the two adjusting blocks 12. The fixing holes 19 allow the user to easily fix them with external bolts.

[0028] Please see Figure 1 , Figure 2 and Figure 3 Both connecting frames 14 have universal tubes 15 fixedly embedded inside, and the bottom end of each universal tube 15 is fixedly connected to an atomizing nozzle 16. The atomizing nozzle 16 can achieve the purpose of spraying water mist. The universal tube 15 allows the user to easily adjust the spray angle. The two adjusting sleeves 13 are fixedly installed on the opposite sides. The output ends of the two metering pumps 17 are fixedly connected to the universal tubes 15 that are close to them. The metering pump 17 allows the user to easily control the amount of water sprayed. The back of the detection frame 3 is equipped with a control host 20. The metering pump 17, cylinder 9 and fan 11 are all electrically connected to the control host 20. The control host 20 can control the striking amplitude of the cylinder 9, the amount of water sprayed and the wind speed.

[0029] The self-healing concrete self-healing performance evaluation device in this embodiment, through the setting of the fan 11 and the atomizing nozzle 16, enables the device to flexibly control the drying speed and humidity conditions of the concrete surface, thereby accelerating the formation of cracks and simulating different service environments, which helps to more comprehensively evaluate the healing performance of concrete under different conditions. The application of the metering pump 17 enables precise control of the amount of water sprayed, avoiding the problem of difficult control of the amount of water splashed in traditional methods. Through the setting of the cylinder 9 and the hammer head 10, the automatic hammering of the mold 1 can be achieved. In conjunction with the crack inducer 7, the complexity and labor intensity of manual operation are greatly reduced, and the detection efficiency and accuracy are improved.

[0030] The working principle of the above embodiment is as follows: First, the core component of the device is a mold 1, used to pour the concrete to be tested. A set of rectangular guide rails 2 are fixedly connected to the outer surface of the mold 1. These guide rails provide a path for the movement of the testing frame 3. The testing frame 3 can slide on the guide rails. It is equipped with casters 18 at its bottom to ensure smoothness and flexibility during movement. From bottom to top, the testing frame 3 is equipped with a data acquisition unit 4, a power amplifier 5, and a signal generator 6. These devices are used to detect cracks that may occur on the concrete surface and collect relevant data. On the inner bottom wall of the mold 1, a crack inducer 7 is installed to generate cracks inside the concrete to simulate crack conditions in actual use. In order to accelerate the formation of cracks, a fan 11 is provided above the mold 1. By operating the fan 11, the concrete surface can be dried, accelerating the evaporation of moisture, thereby promoting the formation of cracks. In addition, adjustment blocks 12 are fixedly connected to both the left and right ends of the upper surface of the mold 1 to adjust the... An adjusting sleeve 13 is slidably fitted onto block 12. The adjusting sleeve 13 can move up and down, thereby driving the fan 11 fixedly connected to it to change its height to adapt to the concrete testing requirements at different heights. At the same time, a universal tube 15 and an atomizing nozzle 16 are fixedly connected between the two adjusting sleeves 13 through a connecting frame 14. Under the control of the metering pump 17, water mist can be sprayed onto the concrete surface to simulate different humidity environments and further observe the self-healing performance of the concrete. During the testing process, the striking frame 8 will automatically strike the mold 1 under the drive of the cylinder 9 to generate cracks. At this time, the collector 4 on the testing frame 3 will collect crack data in real time and process and analyze it through the power amplifier 5 and the signal generator 6. Finally, all the equipment, including the cylinder 9, the fan 11 and the metering pump 17, are electrically connected to the control host 20. Through the control host 20, parameters such as striking amplitude, water spray volume and wind speed can be easily set, thereby achieving precise control of the entire testing process.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for evaluating the self-healing performance of self-healing concrete, comprising a mold (1), characterized in that: A rectangular guide rail (2) is fixedly connected to the outer surface of the mold (1), and a detection frame (3) is slidably connected to the rear end of the guide rail. The detection frame (3) is equipped with a data acquisition device (4), a power amplifier (5) and a signal generator (6) from bottom to top. A crack inducer (7) is installed on the inner bottom wall of the mold (1), and a striking frame (8) is slidably connected to the front end of the rectangular guide rail (2). A cylinder (9) is installed inside the striking frame (8), and a striking head (10) is fixedly connected to the output end of the cylinder (9).

2. The self-healing performance evaluation device for self-healing concrete according to claim 1, characterized in that: A fan (11) is provided above the mold (1).

3. The self-healing performance evaluation device for self-healing concrete according to claim 1, characterized in that: The upper surface of the mold (1) is fixedly connected to both the left and right ends of the mold. Each adjustment block (12) is slidably fitted with an adjustment sleeve (13) on its outer surface. The two adjustment sleeves (13) are fixedly connected to a connecting frame (14) on their sides that are close to each other. The two connecting frames (14) are fixedly connected to a fan (11) on their sides that are close to each other.

4. The self-healing performance evaluation device for self-healing concrete according to claim 3, characterized in that: Both of the connecting frames (14) have universal tubes (15) fixedly embedded inside, and each universal tube (15) has an atomizing nozzle (16) fixedly connected to its bottom end.

5. The self-healing performance evaluation device for self-healing concrete according to claim 3, characterized in that: Metering pumps (17) are fixedly installed on the opposite sides of the two adjusting sleeves (13), and the output ends of the two metering pumps (17) are fixedly connected to the universal tubes (15) that are close to them.

6. The self-healing performance evaluation device for self-healing concrete according to claim 1, characterized in that: The bottom of the testing frame (3) is fixedly equipped with casters (18).

7. The self-healing performance evaluation device for self-healing concrete according to claim 3, characterized in that: Both of the adjustment blocks (12) have a set of fixing holes (19) on their outer surfaces.

8. The self-healing performance evaluation device for self-healing concrete according to claim 1, characterized in that: The back of the testing frame (3) is equipped with a control host (20), and the metering pump (17), cylinder (9) and fan (11) are all electrically connected to the control host (20).

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