CN220305102U - Hydraulic concrete relative permeability test seepage height measuring scale - Google Patents
Hydraulic concrete relative permeability test seepage height measuring scale Download PDFInfo
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- CN220305102U CN220305102U CN202321499854.XU CN202321499854U CN220305102U CN 220305102 U CN220305102 U CN 220305102U CN 202321499854 U CN202321499854 U CN 202321499854U CN 220305102 U CN220305102 U CN 220305102U
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- test
- bottom edge
- hydraulic concrete
- main body
- relative permeability
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- 230000035699 permeability Effects 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000035515 penetration Effects 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 claims abstract description 3
- 230000001105 regulatory effect Effects 0.000 claims description 14
- 238000010998 test method Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 claims description 2
- 238000001764 infiltration Methods 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
Abstract
The utility model provides a hydraulic concrete relative permeability test seepage height measuring ruler which comprises an upper bottom edge, a lower bottom edge and a ruler line. The water seepage height measuring ruler is made of transparent organic glass, the size of the water seepage height measuring ruler is consistent with the section of the anti-seepage test piece after being split, the length of the upper bottom edge is 175mm, the length of the lower bottom edge is 185mm, the upper bottom edge is parallel to the lower bottom edge and 150mm away, the length of a scale line is 150mm, the minimum graduation value of the scale line is 1mm on a ten-division point perpendicular to the upper bottom edge, and each 10mm is provided with a scale mark. The utility model has simple use, can accurately and rapidly measure the concrete penetration height, and ensures that the test result is more accurate and reliable.
Description
Technical Field
The utility model relates to the field of durability detection of hydroelectric engineering concrete, in particular to a seepage height measuring scale for a relative permeability test of hydraulic concrete.
Background
The impermeability of concrete refers to the ability of the concrete material to resist penetration by pressurized water, which is the most fundamental factor in determining the durability of concrete. The water penetration into the interior of the concrete is a precondition for destruction, that is, the water either directly causes expansion and cracking or acts as a carrier for the corrosive medium to diffuse into the interior of the concrete, among the reasons that corrosion of the steel bar, freeze thawing cycles, sulfate attack and alkali aggregate reaction cause degradation of the concrete quality. Therefore, the impermeability of concrete has great significance for the durability of concrete.
The standard of China uses the impermeability grade or permeability coefficient to express the impermeability of concrete, and the test piece adopts a truncated cone test piece with the top surface diameter of 175mm, the bottom surface diameter of 185mm and the height of 150mm. The concrete relative permeability test in the current standard of the current Hydraulic concrete test procedure DL/T5150-2017 provides that concrete is mounted on an anti-permeability instrument, added at one time to 0.8MPa and kept constant for 24 hours, then depressurized, a test piece is taken out from a test mold, and a steel filler strip with phi 6mm is respectively placed at the diameters of two end surfaces of the test piece according to the parallel direction, and the test piece is split by a press machine. Nine equal parts of the bottom edge of the splitting surface are split, water seepage heights are measured at the equal part points (after the test piece is split, water marks can be seen after 2-3 min, at the moment, the positions of the water marks can be used for pen strokes, the water seepage heights are conveniently measured), and the average value of the water seepage heights of the equal part points is used as the water seepage height of the test piece.
After the conventional chalk is adopted to mark equal division points in the water seepage height test, the steel ruler is adopted to measure the heights of the equal division points, and as the number of the equal division points is large, the measuring process is complicated, the vertical measurement is not easy to ensure, and the accuracy of the test is affected.
Disclosure of Invention
In order to overcome the defects of the existing measuring device, the utility model aims to provide the hydraulic concrete relative permeability test seepage height measuring ruler which can accurately and rapidly measure the concrete seepage height, so that the test result is more accurate and reliable.
The utility model is realized by adopting the following technical scheme:
the utility model provides a hydraulic concrete relative permeability test infiltration height measurement chi which characterized in that: the hydraulic concrete test system comprises a main body, wherein the main body is trapezoid, the upper bottom edge of the main body is not shorter than the diameter of the upper end of a test piece regulated by a hydraulic concrete test regulation, the lower bottom edge of the main body is not shorter than the diameter of the lower end of the test piece regulated by the hydraulic concrete test regulation, the height of the main body is equal to the height of the test piece regulated by the hydraulic concrete test regulation, the front surface of the main body is provided with height scale lines with the same number of points n to be measured as regulated by the hydraulic concrete test regulation, and the distance between every two adjacent scale lines is equal to the diameter n-1 of the upper end of the test piece regulated by the hydraulic concrete test regulation; the main body is a transparent body.
On the basis of adopting the technical scheme, the utility model can also adopt the following further technical schemes or use the further technical schemes in combination:
the main body is made of transparent organic glass plates or sheets.
The main body is isosceles trapezoid.
The diameter of the upper bottom edge is equal to that of the upper end of a test piece specified by the hydraulic concrete test rule, and the diameter of the lower bottom edge is equal to that of the lower end of the test piece specified by the hydraulic concrete test rule.
The length of the upper bottom edge is 175mm, the length of the lower bottom edge is 185mm, and the upper bottom edge is parallel to the lower bottom edge and is 150mm apart.
The distance between adjacent scale lines is consistent with the nine equal divisions of the diameter of the upper end of a test piece specified by the hydraulic concrete test procedure, the minimum division value of the scale lines is 1mm, and each 10mm is provided with a scale mark.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model is matched with the split section of the impervious test piece, is convenient for accurate positioning in the measuring process, is convenient to operate, can rapidly measure through the arranged scale line, directly obtains all penetration heights to be measured, and ensures that the test result is more accurate and reliable.
Drawings
Fig. 1 is an overall perspective view of the present utility model.
Detailed Description
The present utility model is further described below with reference to the drawings and examples, which are not intended to be limiting.
As shown in fig. 1, the scale for measuring the seepage height of the hydraulic concrete relative permeability test provided by the utility model comprises a main body 100, wherein the main body 100 is trapezoidal, the upper bottom edge of the main body is not shorter than the diameter of the upper end of a test piece regulated by the hydraulic concrete test rule, the lower bottom edge of the main body is not shorter than the diameter of the lower end of the test piece regulated by the hydraulic concrete test rule, the height of the main body is equal to the height of the test piece regulated by the hydraulic concrete test rule, 10 height scale lines 3 are arranged on the front surface of the main body, and the distance between every two adjacent scale lines 3 is nine equal to the diameter of the upper end of the test piece regulated by the hydraulic concrete test rule. The body 100 is made of a transparent plexiglass plate or sheet.
Preferably, the shape of the main body 100 is the same as the vertical cross-sectional shape of the test piece passing through the center line thereof, which is prescribed by the hydraulic concrete test procedure.
In this embodiment, the length of the upper bottom edge 1 is 175mm. The length of the lower bottom edge 2 is 185mm, and the lower bottom edge 2 is parallel to the upper bottom edge 1 and is 150mm apart. The length of the height scale line 3 is 150mm, 10 lines are all arranged on the ten points of the upper bottom edge, the minimum graduation value of the graduation line is 1mm, and each 10mm is provided with a graduation mark.
When the concrete penetration height is measured, the test piece which is subjected to the test is taken out from the test mould, a phi 6mm steel backing strip is respectively placed at the diameter of two end surfaces of the test piece according to the parallel direction, the test piece is split by a press machine, after water marks are seen, the positions of the water marks are marked by strokes, a water penetration height measuring ruler is placed at the section of the impervious test piece, the upper bottom edge 1 and the lower bottom edge 2 are overlapped with the top surface and the bottom surface of the test piece, numerical values on ten scale lines 3 are respectively measured and recorded, the numerical values are accurate to 1mm, and then the average value of the ten numerical values is calculated as the water penetration height of the test piece.
The above embodiment is only one preferred technical solution of the present utility model, and it should be understood by those skilled in the art that modifications and substitutions can be made to the technical solution or parameters in the embodiment without departing from the principle and essence of the present utility model, and all the modifications and substitutions are covered in the protection scope of the present utility model.
Claims (6)
1. The utility model provides a hydraulic concrete relative permeability test infiltration height measurement chi which characterized in that: the hydraulic concrete test system comprises a main body, wherein the main body is trapezoid, the upper bottom edge of the main body is not shorter than the diameter of the upper end of a test piece regulated by a hydraulic concrete test regulation, the lower bottom edge of the main body is not shorter than the diameter of the lower end of the test piece regulated by the hydraulic concrete test regulation, the height of the main body is equal to the height of the test piece regulated by the hydraulic concrete test regulation, the front surface of the main body is provided with height scale lines with the same number of points n to be measured as regulated by the hydraulic concrete test regulation, and the distance between every two adjacent scale lines is equal to the diameter n-1 of the upper end of the test piece regulated by the hydraulic concrete test regulation; the main body is a transparent body.
2. The hydraulic concrete relative permeability test seepage height measuring scale according to claim 1, wherein: the main body is made of transparent organic glass plates or sheets.
3. The hydraulic concrete relative permeability test seepage height measuring scale according to claim 1, wherein: the main body is isosceles trapezoid.
4. A hydraulic concrete relative permeability test water penetration height measuring scale according to claim 3, wherein: the diameter of the upper bottom edge is equal to that of the upper end of a test piece specified by the hydraulic concrete test rule, and the diameter of the lower bottom edge is equal to that of the lower end of the test piece specified by the hydraulic concrete test rule.
5. The hydraulic concrete relative permeability test seepage height measuring scale according to claim 1, wherein: the length of the upper bottom edge is 175mm, the length of the lower bottom edge is 185mm, and the upper bottom edge is parallel to the lower bottom edge and is 150mm apart.
6. The hydraulic concrete relative permeability test seepage height measuring scale according to claim 1, wherein: the distance between adjacent scale lines is consistent with the nine equal divisions of the diameter of the upper end of a test piece specified by the hydraulic concrete test procedure, the minimum division value of the scale lines is 1mm, and each 10mm is provided with a scale mark.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321499854.XU CN220305102U (en) | 2023-06-13 | 2023-06-13 | Hydraulic concrete relative permeability test seepage height measuring scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321499854.XU CN220305102U (en) | 2023-06-13 | 2023-06-13 | Hydraulic concrete relative permeability test seepage height measuring scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220305102U true CN220305102U (en) | 2024-01-05 |
Family
ID=89376089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321499854.XU Active CN220305102U (en) | 2023-06-13 | 2023-06-13 | Hydraulic concrete relative permeability test seepage height measuring scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220305102U (en) |
-
2023
- 2023-06-13 CN CN202321499854.XU patent/CN220305102U/en active Active
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