Device for detecting porosity of pervious concrete

Abstract

The utility model provides a device for detecting the porosity of pervious concrete, which comprises a detection table, a metering barrel and a measuring cup, a support frame is mounted at one end of the detection table, a slide rail is arranged on one side of the support frame, a support plate is mounted in the slide rail, a threaded lifting rod is mounted on the support plate, and the bottom of the threaded lifting rod is connected with a chassis; the other end of the detection table is provided with an embedding groove, and an electronic scale is installed in the embedding groove. Compared with the prior art, the porosity of the pervious concrete is detected through an automatic device, so that the detection efficiency and the result accuracy are greatly improved. The complexity of manual operation and personal errors are reduced, and the reliability of a detection result is ensured. The detection repeatability is improved, a consistent result can be obtained in multiple times of detection, and the method is suitable for large-scale industrial application. According to the device and the method provided by the utility model, the porosity of the pervious concrete can be rapidly and accurately detected, the operation is simple and convenient, the device is suitable for field application, and the detection stability of the pervious concrete is favorably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of porosity detection of permeable concrete, in particular to a device for detecting the porosity of permeable concrete. Background Art

[0002] Pervious concrete, a highly porous concrete material, is widely used in places like roads, plazas, and parking lots. Its primary advantage is its ability to effectively promote rainwater infiltration, reduce urban waterlogging, and mitigate the urban heat island effect. However, the porosity of pervious concrete is a key factor affecting its permeability. Therefore, accurately measuring the porosity of pervious concrete is crucial to ensuring its performance.

[0003] Prior art methods for measuring the porosity of permeable concrete primarily include direct and indirect methods. Direct methods, which calculate porosity directly through weighing or volumetric measurement, offer the advantage of simplicity, but often suffer from inaccurate results due to factors such as uneven pore distribution. Indirect methods typically use methods such as permeability tests and CT scans to estimate porosity using relevant physical or image processing methods. While these methods can provide relatively accurate results, they are complex, costly, and require high equipment requirements, making them unsuitable for rapid on-site testing.

[0004] Therefore, the existing methods for detecting the porosity of permeable concrete have disadvantages such as low measurement accuracy, complex operation, high cost and unsuitability for on-site detection. There is an urgent need for a fast and non-destructive detection device and method to meet practical application needs. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a device for detecting the porosity of permeable concrete, which can realize efficient and accurate detection of the porosity of permeable concrete, overcome many shortcomings in the existing technology, and provide reliable technical support for the evaluation and quality control of permeable concrete performance.

[0006] The utility model provides a device for detecting the porosity of permeable concrete, comprising a testing platform, a measuring bucket and a measuring cup, wherein a support frame is installed at one end of the testing platform, a slide rail is provided at the side of the support frame close to the testing platform, a support plate is installed in the slide rail, a threaded lifting rod is installed on the support plate, and the bottom of the threaded lifting rod is connected to a chassis; an embedding groove is provided at the other end of the testing platform, and an electronic scale is installed in the embedding groove.

[0007] Compared with the prior art, the beneficial effects of the present invention are:

[0008] This utility model uses an automated device to test the porosity of permeable concrete, significantly improving testing efficiency and accuracy. It reduces the complexity and human error associated with manual operations, ensuring the reliability of test results. It also improves test repeatability, enabling consistent results across multiple tests and making it suitable for large-scale industrial applications. The device and method provided by this utility model enable rapid and accurate testing of the porosity of permeable concrete, are easy to operate, and are suitable for field applications, helping to improve the stability of permeable concrete testing.

[0009] Furthermore, a driving motor is provided at the top end of the threaded lifting rod, an output end of the driving motor is connected to the threaded lifting rod, and the driving motor is mounted on the support plate.

[0010] Furthermore, an expansion plate is sleeved on the bottom of the chassis, and a hole is opened on the expansion plate.

[0011] Furthermore, the sizes of the base plate and the extension plate are adapted to the inner diameter of the metering barrel, and the base plate and the extension plate move vertically inside the metering barrel.

[0012] Furthermore, a metering barrel is arranged below the support plate, and filter holes are provided at the bottom and lower part of the metering barrel. Scale lines are provided on the inner wall of the metering barrel for measuring the material content in the metering barrel and observing data changes. The metering barrel is placed inside the measuring cup.

[0013] Furthermore, a support block is provided at the inner bottom of the measuring cup, a filter plate is provided on the support block, and a vibration component is installed at the bottom of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of a device for detecting porosity of permeable concrete according to an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of a measuring barrel and a measuring cup according to an embodiment of the present utility model;

[0016] Figure 3 This is a top view of the measuring barrel and measuring cup according to an embodiment of the present utility model;

[0017] The markings in the figure are: 1. Testing table; 2. Support frame; 3. Slide rail; 4. Support plate; 5. Drive motor; 6. Threaded lifting rod; 7. Chassis; 8. Extension plate; 9. Measuring barrel; 901. Filter hole; 10. Measuring cup; 1001. Support block; 1002. Filter plate; 1003. Vibration assembly; 11. Embedded slot; 12. Electronic scale. DETAILED DESCRIPTION

[0018] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail through the following specific implementation methods, but the present invention is not limited thereto.

[0019] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” or “laid on” another element, it may be directly connected to the other element or indirectly connected to the other element.

[0020] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0022] See also Figures 1 to 3 The utility model provides a device for detecting the porosity of permeable concrete, including a testing platform 1, a measuring bucket 9 and a measuring cup 10. A support frame 2 is fixedly installed at one end of the testing platform 1, and a slide rail 3 is provided on the side of the support frame 2 close to the testing platform 1. A support plate 4 is installed in the slide rail 3, and the support plate 4 can move up and down along the slide rail 3. A threaded lifting rod 6 is installed on the support plate 4, and a drive motor 5 is provided at the top of the threaded lifting rod 6. The output end of the drive motor 5 is connected to the threaded lifting rod 6, and the drive motor 5 is installed on the support plate 4. The bottom of the threaded lifting rod 6 is connected to a chassis 7, and an expansion disk 8 is provided on the bottom of the chassis 7, and a hole is opened on the expansion disk 8. The size of the chassis 7 and the expansion disk 8 is adapted to the inner diameter of the measuring bucket 9, and the chassis 7 and the expansion disk 8 move vertically inside the measuring bucket 9.

[0023] A measuring bucket 9 is positioned below the support plate 4. The interior of the measuring bucket 9 is filled with the concrete sample to be tested. Filter holes 901 are provided at the bottom and lower portion of the measuring bucket 9. The inner wall of the measuring bucket 9 is provided with scale lines for measuring the material content within the measuring bucket 9 and observing changes in the data. The measuring bucket 9 is placed inside a measuring cup 10. A support block 1001 is provided at the inner bottom of the measuring cup 10. A filter plate 1002 is mounted on the support block 1001. A vibration assembly 1003 is mounted at the bottom of the filter plate 1002. This assembly is used to drive the measuring bucket 9 to vibrate on the filter plate 1002. An embedded slot 11 is provided at the other end of the testing platform 1. An electronic scale 12 is mounted within the embedded slot 11. The size of the electronic scale 12 matches the bottom size of the measuring cup 10 and is used to weigh the measuring cup 10.

[0024] In some embodiments, a rack track is provided in the slide rail 3, a gear is provided at one end of the support plate 4, the gear of the support plate 4 is engaged with the rack in the slide rail 3, and a servo motor is also provided on the support frame 2 to drive the support plate 4 to move up and down.

[0025] The method for using the device for detecting the porosity of permeable concrete of the utility model comprises the following steps:

[0026] Step 1: Weigh the measuring cup 10 in its initial state using the electronic scale 12 and record the initial weight;

[0027] Step 2: measuring the volume of the permeable concrete sample to be tested;

[0028] In some embodiments, the concrete sample is a solid sample with a regular geometric shape, and the sample volume can be measured directly based on the size of the geometric shape.

[0029] In some embodiments, the concrete sample is a small granular sample, and the sample volume is measured using a measuring cylinder, a measuring cup, or other tools.

[0030] In some embodiments, the concrete sample is an irregularly shaped sample, and the sample volume is indirectly calculated by measuring the sample mass and density.

[0031] Step 3: Process the permeable concrete sample to be tested to fully absorb water, then fill the permeable concrete sample into the measuring bucket 9 and distribute it evenly;

[0032] In some embodiments, the concrete sample to be tested is dried to remove moisture on the surface and inside of the sample, the dried concrete sample is completely immersed in water to fully absorb water, and then the concrete sample is filled into the measuring bucket 9.

[0033] Step 4: Place the measuring barrel 9 inside the measuring cup 10, and then place the measuring barrel 9 on the filter plate 1002. Adjust the position of the measuring barrel 9 so that the filter hole 901 at the bottom is aligned with the filter plate 1002.

[0034] Step 5: Place the measuring cup 10 directly below the support plate 4;

[0035] Step 6: Start the drive motor 5 and control the lifting and lowering of the threaded lifting rod 6 by the drive motor 5, so that the base plate 7 and the expansion plate 8 move vertically inside the measuring barrel 9, squeezing the concrete sample in the measuring barrel 9 so that the water inside the concrete sample overflows from the inside and outside of the measuring barrel 9 into the measuring cup 10;

[0036] Step 7: Start the vibration component 1003 in the measuring cup 10 to accelerate the drainage of the concrete sample through vibration;

[0037] Step 8: After the concrete sample is fully filtered, weigh the measuring cup 10 again, record the final weight, and calculate the porosity of the concrete sample based on the weight difference.

[0038] The calculation formula for porosity is:

[0039] Porosity = (final weight of measuring cup - initial weight of measuring cup) / (density of water * sample volume) * 100%.

[0040] Compared with the prior art, the beneficial effects of the present invention are:

[0041] This utility model uses an automated device to test the porosity of permeable concrete, significantly improving testing efficiency and accuracy. It reduces the complexity and human error associated with manual operations, ensuring the reliability of test results. It also improves test repeatability, enabling consistent results across multiple tests and making it suitable for large-scale industrial applications. The device and method provided by this utility model enable rapid and accurate testing of the porosity of permeable concrete, are easy to operate, and are suitable for field applications, helping to improve the stability of permeable concrete testing.

[0042] Finally, it should be noted that the above-listed examples are only preferred embodiments of the present invention. Of course, those skilled in the art can make changes and modifications to the present invention. If these modifications and modifications fall within the scope of the claims of the present invention and their equivalent technologies, they should be considered to be within the scope of protection of the present invention.

Claims

1. A device for detecting the porosity of permeable concrete, comprising a detection table (1), a measuring bucket (9) and a measuring cup (10), characterized in that: A support frame (2) is installed at one end of the test platform (1), a slide rail (3) is provided on the side of the support frame (2) close to the test platform (1), a support plate (4) is installed in the slide rail (3), a threaded lifting rod (6) is installed on the support plate (4), and the bottom of the threaded lifting rod (6) is connected to the chassis (7); an embedding groove (11) is provided at the other end of the test platform (1), and an electronic scale (12) is installed in the embedding groove (11).

2. The device for detecting porosity of permeable concrete according to claim 1, characterized in that: A driving motor (5) is provided at the top end of the threaded lifting rod (6), an output end of the driving motor (5) is connected to the threaded lifting rod (6), and the driving motor (5) is mounted on the support plate (4).

3. The device for detecting porosity of permeable concrete according to claim 1, characterized in that: An expansion disk (8) is sleeved on the bottom of the chassis (7), and a hole is formed on the expansion disk (8).

4. The device for detecting porosity of permeable concrete according to claim 3, characterized in that: The sizes of the base plate (7) and the expansion plate (8) are adapted to the inner diameter of the metering barrel (9), and the base plate (7) and the expansion plate (8) move vertically inside the metering barrel (9).

5. The device for detecting porosity of permeable concrete according to claim 1, characterized in that: The measuring barrel (9) is arranged below the support plate (4), the bottom and lower portion of the measuring barrel (9) are provided with filter holes (901), the inner wall of the measuring barrel (9) is provided with scale lines, and the measuring barrel (9) is placed inside the measuring cup (10).

6. The device for detecting porosity of permeable concrete according to claim 1, characterized in that: A support block (1001) is provided at the inner bottom of the measuring cup (10), a filter plate (1002) is provided on the support block (1001), and a vibration component (1003) is installed at the bottom of the filter plate (1002).

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