CN216525352U - Concrete water permeability detection device - Google Patents
Concrete water permeability detection device Download PDFInfo
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- CN216525352U CN216525352U CN202123005305.6U CN202123005305U CN216525352U CN 216525352 U CN216525352 U CN 216525352U CN 202123005305 U CN202123005305 U CN 202123005305U CN 216525352 U CN216525352 U CN 216525352U
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- square
- inner cylinder
- cylinder
- concrete
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- 239000004567 concrete Substances 0.000 title claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 230000035699 permeability Effects 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 title claims abstract description 22
- 238000005192 partition Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 5
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 3
- 239000002002 slurry Substances 0.000 abstract description 3
- 230000003670 easy-to-clean Effects 0.000 abstract description 2
- 238000002474 experimental method Methods 0.000 description 3
- 238000011041 water permeability test Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011380 pervious concrete Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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Abstract
The concrete water permeability detection device comprises a square outer cylinder and a square inner cylinder arranged in the square inner cylinder, wherein the upper end of the square outer cylinder is open, the lower end of the square outer cylinder is closed, the upper end and the lower end of the square inner cylinder are both open, a lower water outlet pipe communicated with an outer cavity is arranged at the upper part of the square outer cylinder, and an upper water outlet pipe communicated with the inner cavity is arranged at the upper part of the square inner cylinder; the concrete test piece sets up in the lower part of the inner chamber of square inner tube, is provided with the rubber layer between the outer wall of concrete test piece and the inner wall of square inner tube. The concrete water permeability detection device provided by the utility model realizes the matching with a square concrete test piece, the concrete test piece can be conveniently taken out after the test, and the rubber layer is adopted, so that the sealing between the concrete test piece and the square inner cylinder is realized, and the problem that the concrete test piece is not easy to clean when being plugged by using slurry in the prior art is also avoided.
Description
Technical Field
The utility model relates to a concrete water permeability detection device, in particular to a concrete water permeability detection device consisting of a square outer cylinder and a square inner cylinder.
Background
In order to detect the water permeability coefficient of the pervious concrete, an instrument for detecting the water permeability coefficient is available at present, but the existing instrument has a plurality of defects. The first disadvantage is that the current instrument adopts a cylindrical structure, and the test mold for manufacturing the test piece is generally cubic and is not compatible in size. The second point is not enough that what present water permeability coefficient instrument adopted is monolithic structure, and the test block is difficult to put into, also should not take out after doing the experiment. The third point is not enough that current instrument in order to avoid when detecting the permeability coefficient of concrete test block that permeates water, rivers flow around the test block, and what generally adopted is that seal the gap all around test block and pore wall with the thin slurry, leads to after having done a set of test piece, and the instrument is difficult to the clean up.
Disclosure of Invention
In order to overcome the defects of the technical problems, the utility model provides a concrete water permeability detection device.
The concrete water permeability detection device comprises a square outer cylinder and a square inner cylinder arranged in the square inner cylinder, wherein a square outer cavity and a square inner cavity are respectively arranged in the square outer cylinder and the square inner cylinder; the method is characterized in that: the upper end of the square outer cylinder is open, the lower end of the square outer cylinder is closed, the upper end and the lower end of the square inner cylinder are both open, the upper part of the square outer cylinder is provided with a lower water outlet pipe communicated with the outer cavity, and the upper part of the square inner cylinder is provided with an upper water outlet pipe communicated with the inner cavity; the square inner cylinder is suspended in the square outer cylinder, the concrete test piece is arranged on the lower portion of an inner cavity of the square inner cylinder, a rubber layer is arranged between the outer wall of the concrete test piece and the inner wall of the square inner cylinder, and water in the inner cavity above the concrete test piece flows into an outer cavity on the periphery of the square inner cylinder after penetrating through the concrete test piece and flows out through the lower water outlet pipe.
According to the concrete water permeability detection device, a horizontal partition plate is arranged in the square outer cylinder, a through hole through which the square inner cylinder passes is formed in the partition plate, and an extension outer ring on the partition plate is fixed on the outer wall of the square inner cylinder.
The concrete water permeability detection device comprises a bottom cover fixed on an opening at the lower end of a square inner cylinder, wherein the center of the bottom cover is provided with a water permeable square hole with the same shape as the cross section of a concrete test piece; the bottom cover is connected with the lower end of the square inner cylinder through a connecting mechanism.
According to the concrete water permeability detection device, the connecting mechanism is composed of the hook and the connecting rod, the connecting rod is fixed on the outer wall of the square inner cylinder, the hook is hinged to the connecting rod, and the bottom cover is provided with a notch matched with the hook.
According to the concrete water permeability detection device, the height of the square outer cylinder is 35cm, and the cross section of the square outer cylinder is a square with the size of 30cm multiplied by 30 cm; the height of the square inner cylinder is 45cm, and the cross section of the square inner cylinder is a square with the size of 12cm multiplied by 12 cm.
The utility model has the beneficial effects that: the concrete water permeability detection device comprises a square outer cylinder, a square inner cylinder, a rubber layer, a lower water outlet pipe and a lower water outlet pipe, wherein the square inner cylinder is suspended in the square outer cylinder, the upper end and the lower end of the square inner cylinder are both open, a square concrete sample to be tested is placed in the square inner cylinder through the rubber layer on the periphery of the square inner cylinder, and the concrete sample to be tested is stably fixed in the square inner cylinder by virtue of friction force between the concrete sample and the rubber layer and between the rubber layer and the inner wall of the square inner cylinder. Therefore, the concrete water permeability detection device provided by the utility model adopts a combined structure of the square outer cylinder and the square inner cylinder, so that the matching with a square concrete test piece is realized, the concrete test piece can be conveniently taken out after a test, and by adopting the rubber layer, the sealing between the concrete test piece and the square inner cylinder is realized, and the problem that the concrete test piece is not easy to clean when the existing slurry plugging is adopted is also avoided.
Drawings
FIG. 1 is a front view of a concrete water permeability detecting apparatus according to the present invention;
FIG. 2 is a left side view of the concrete water permeability detecting apparatus according to the present invention;
FIG. 3 is a right side view of the concrete water permeability detecting apparatus of the present invention;
FIG. 4 is a top view of the concrete water permeability detection apparatus of the present invention;
FIG. 5 is a cross-sectional view of section A-A of FIG. 4;
fig. 6 is a partially enlarged view of the region B in fig. 5.
In the figure: the concrete test piece comprises a square outer cylinder 1, a square inner cylinder 2, an upper water outlet pipe 3, a lower water outlet pipe 4, an outer cavity 5, an inner cavity 6, a rubber layer 7, a concrete test piece 8, a partition plate 9, an extension outer ring 10, a bottom cover 11, a connecting mechanism 12, a water permeable square hole 13, a hook 14, a gap 15 and a connecting rod 16.
Detailed Description
The utility model is further described with reference to the following figures and examples.
As shown in fig. 1 to 4, a front view, a left view, a right view and a top view of the concrete water permeability detection device of the present invention are respectively given, fig. 5 is a cross-sectional view of a section a-a in fig. 6, the concrete water permeability detection device is composed of a square outer cylinder 1 and a square inner cylinder 2, the upper end and the lower end of the square inner cylinder 1 are open, the upper end and the lower end of the square inner cylinder 2 are both open, the square outer cavity 5 is formed inside the square outer cylinder 1, and the square inner cavity 6 is formed inside the square inner cylinder 2. Through adopting the square inner cylinder 2 with the square inner cavity 6 inside, the good matching with a square concrete test piece can be realized, and the water permeability test of the concrete test piece 8 is more favorably carried out.
The square inner cylinder 2 is suspended in the square outer cylinder 1, the upper part of the square inner cylinder 2 is provided with an upper water outlet pipe 3 communicated with the inner cavity 6, and excessive injected water can be discharged through the upper water outlet pipe 3 in the process of the water permeability test. The upper part of the square outer barrel 1 is provided with a lower water outlet pipe 4 communicated with the outer cavity 5, and water penetrating through the concrete test piece 8 is discharged through the lower water outlet pipe 4 in the concrete water permeability test process.
In order to enable the square inner cylinder 2 to be suspended in the square outer cylinder 1, a horizontal partition plate 9 is arranged in the square outer cylinder 1, a square through hole through which the square inner cylinder 2 passes is formed in the partition plate 9, an extension outer ring 10 is fixed on the outer wall of the square inner cylinder 2, and the extension outer ring 10 is used for bearing on the partition plate 9, so that the square inner cylinder 2 is suspended in the square outer cylinder 1.
The concrete test piece 8 to be tested is arranged at the lower end of the inner cavity 6 in the square inner cylinder 2, a rubber layer 7 is arranged between the concrete test piece 8 and the inner wall of the square inner cylinder 2, the rubber layer 7 is in a compressed state, the fixation of the concrete test piece 8 in the inner cavity 6 is realized through the friction force between the rubber layer 7 and the concrete test piece 8 and the friction force between the rubber layer 7 and the square inner cylinder 2, meanwhile, the rubber layer 7 also realizes the peripheral sealing of the concrete test piece 8, the periphery of the concrete test piece 8 is watertight in the water permeation test process, and water only penetrates through the concrete test piece 8.
In order to support the lower end of the rubber layer 7, the lower end of the square inner cylinder 2 is provided with a bottom cover 11, and the bottom cover 11 is fixedly connected with the lower end of the square inner cylinder 2 through a connecting mechanism 12. As shown in fig. 6, which shows a partial enlarged view of the area B in fig. 5, the connecting mechanism 12 is composed of a hook 14 and a connecting rod 16, the connecting rod 16 is fixed on the outer wall of the square inner cylinder 2, the hook 14 is hinged on the connecting rod 16, and the bottom cover 11 is provided with a notch 15 matched with the hook. Through going into the breach 15 with couple 15 card, can realize bottom 11 and square inner tube 2's fixed connection, after the experiment, it is also very convenient to dismantle.
During the experiment, the square outer barrel 1 is filled with water, and the water level plane is flush with the lower water outlet pipe 4. The concrete sample 8 is placed at the bottom of the inner cavity 6 of the square inner cylinder 2 and plays a role in fixing through the rubber layer 7. During measurement, the water supply valve is opened, water flows into the square inner barrel 2, after the water flow of the upper water outlet pipe 3 and the lower water outlet pipe 4 is stable, the water is collected from the lower cubic column water outlet hole by the measuring barrel, and the water permeability coefficient of the concrete sample can be calculated through recording and measurement.
Claims (5)
1. A concrete water permeability detection device comprises a square outer cylinder (1) and a square inner cylinder (2) arranged in the square inner cylinder, wherein a square outer cavity (5) and a square inner cavity (6) are respectively arranged in the square outer cylinder and the square inner cylinder; the method is characterized in that: the upper end of the square outer cylinder is open, the lower end of the square outer cylinder is closed, the upper end and the lower end of the square inner cylinder are both open, the upper part of the square outer cylinder is provided with a lower water outlet pipe (4) communicated with the outer cavity, and the upper part of the square inner cylinder is provided with an upper water outlet pipe (3) communicated with the inner cavity; the square inner cylinder is suspended in the square outer cylinder, the concrete test piece (8) is arranged at the lower part of the inner cavity of the square inner cylinder, a rubber layer (7) is arranged between the outer wall of the concrete test piece and the inner wall of the square inner cylinder, and water in the inner cavity (6) above the concrete test piece flows into the outer cavity (5) on the periphery of the square inner cylinder after penetrating through the concrete test piece and flows out through the lower water outlet pipe (4).
2. The concrete water permeability detection device of claim 1, wherein: a horizontal partition plate (9) is arranged in the square outer cylinder (1), a through hole through which the square inner cylinder passes is formed in the partition plate, and an extension outer ring (10) which is born on the partition plate is fixed on the outer wall of the square inner cylinder (2).
3. The concrete water permeability detection apparatus according to claim 1 or 2, characterized in that: the device comprises a bottom cover (11) fixed on an opening at the lower end of a square inner cylinder (2), wherein the center of the bottom cover is provided with a water-permeable square hole (13) with the same shape as the cross section of a concrete test piece (8); the bottom cover is connected with the lower end of the square inner cylinder (2) through a connecting mechanism (12).
4. The concrete water permeability detection device of claim 3, wherein: the connecting mechanism (12) is composed of a hook (14) and a connecting rod (16), the connecting rod is fixed on the outer wall of the square inner cylinder (2), the hook is hinged on the connecting rod, and a gap (15) matched with the hook is formed in the bottom cover.
5. The concrete water permeability detection apparatus according to claim 1 or 2, characterized in that: the height of the square outer cylinder (1) is 35cm, and the cross section of the square outer cylinder is a square of 30cm multiplied by 30 cm; the height of the square inner cylinder is 45cm, and the cross section of the square inner cylinder is a square with the size of 12cm multiplied by 12 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123005305.6U CN216525352U (en) | 2021-12-02 | 2021-12-02 | Concrete water permeability detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123005305.6U CN216525352U (en) | 2021-12-02 | 2021-12-02 | Concrete water permeability detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216525352U true CN216525352U (en) | 2022-05-13 |
Family
ID=81465456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123005305.6U Expired - Fee Related CN216525352U (en) | 2021-12-02 | 2021-12-02 | Concrete water permeability detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216525352U (en) |
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2021
- 2021-12-02 CN CN202123005305.6U patent/CN216525352U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220513 |