CN221174643U - Free bleeding rate and expansion rate measuring device - Google Patents
Free bleeding rate and expansion rate measuring device Download PDFInfo
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- CN221174643U CN221174643U CN202322652331.0U CN202322652331U CN221174643U CN 221174643 U CN221174643 U CN 221174643U CN 202322652331 U CN202322652331 U CN 202322652331U CN 221174643 U CN221174643 U CN 221174643U
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- cylinder body
- sealing cover
- cylinder
- expansion rate
- measuring device
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- 230000000740 bleeding effect Effects 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 4
- 239000010935 stainless steel Substances 0.000 claims abstract description 4
- 239000004568 cement Substances 0.000 abstract description 16
- 239000004570 mortar (masonry) Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model provides a free bleeding rate and expansion rate measuring device which is made of stainless steel and comprises an upper sealing cover, a cylinder body and a lower sealing cover, wherein the cylinder body is formed by splicing a left half cylinder body and a right half cylinder body to form a cylindrical cylinder structure, the top and the bottom of the cylinder body are respectively connected and sealed through the upper sealing cover and the lower sealing cover, and the cylinder body is provided with a transparent observation window with scales. The utility model is easy to disassemble and assemble, is tightly connected, is convenient for taking out hardened cement from the cylinder, solves the technical problems that the hardened cement cannot be taken out from the cylinder and cannot be repeatedly and practically used, and reduces the experiment cost.
Description
Technical Field
The application relates to the technical field of cement paste detection equipment, in particular to a free bleeding rate and expansion rate measuring device.
Background
The cement paste bleeding expansion rate tester is widely applied to the measurement of cement-based materials and inorganic materials, and the free bleeding rate and the free expansion rate of the pressed slurry are important indexes of civil engineering construction in the civil engineering construction.
At present, the free bleeding rate and free expansion rate test method of cement paste is referred to the Highway engineering Cement and cement concrete test procedure (JTG 3420-2020). The test instrument comprises: volume 1000mL, index value 1mL, and fit the sealed lid cylinder.
The specific test method comprises the following steps: slowly injecting slurry into a vector cylinder with uniform speed of about 800 mL+/-10 mL, covering a sealing plug, standing for 1min, and measuring and recording an initial height a1; after 3h and 24h, the bleeding surface height a2 and the cement slurry expansion surface height a3 are respectively measured, and the reading is accurate to 0.1mm; and respectively calculating the normal pressure bleeding rates of cement paste for 3h and 24h and the free expansion rates of the cement paste for 3h and 24h according to the formula in the specification.
When the normal pressure bleeding rate and the free expansion rate of the cement paste are measured for 24 hours, the cement paste is hardened and is difficult to take out, so that the measuring cylinder is wasted and cannot be reused, and resource waste is caused.
Disclosure of Invention
The utility model aims to solve the problems and provides a free bleeding rate and expansion rate measuring device.
Embodiments of the present application are implemented as follows:
The embodiment of the application provides a free bleeding rate and expansion rate measuring device, which is characterized by comprising an upper sealing cover, a cylinder body and a lower sealing cover, wherein the cylinder body is formed by splicing a left half cylinder body and a right half cylinder body to form a cylindrical cylinder structure, and the top and the bottom of the cylinder body are respectively connected and sealed by the upper sealing cover and the lower sealing cover
In some optional embodiments, two side splicing edges of the left half cylinder body and the right half cylinder body are respectively provided with a clamping protrusion and a clamping groove which are configured, and the left half cylinder body and the right half cylinder body are clamped and fastened through the clamping protrusions and the clamping grooves.
In some alternative embodiments, the side wall of the cylinder is embedded with a transparent observation window, and vertical height graduation marks with graduation value of 1mm are arranged on the transparent observation window.
In some alternative embodiments, the top and the bottom of the cylinder are provided with external threads, and the upper sealing cover and the lower sealing cover are provided with internal threads and are fastened through threaded connection.
In some alternative embodiments, the height of the cylinder is 450-550 mm, the diameter is 55-65 mm, and the transparent observation window is embedded in the middle upper part of the cylinder and is 150-250 mm in height.
In some alternative embodiments, the barrel and the upper and lower seal caps are each made of stainless steel.
The beneficial effects of the application are as follows: the free bleeding rate and expansion rate measuring device provided by the application is formed by splicing the two half cylinders, the upper end and the lower end are fixed by adopting the end cover screw threads, the end cover is unscrewed after the measurement is completed, the hardened cement paste can be taken out by separating the cylinder body, the taking out is convenient, the device can be recycled, the resource waste is avoided, and the cost is saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram illustrating the disassembly of an embodiment of the present application.
Fig. 2 is a schematic view of a barrel connection according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The features and capabilities of the present application are described in further detail below in connection with the examples.
As shown in figures 1 and 2, the free bleeding rate and expansion rate measuring device comprises an upper sealing cover 1, a cylinder body and a lower sealing cover 2, wherein the cylinder body is formed by splicing a left half cylinder body 3 and a right half cylinder body 4 to form a cylindrical cylinder structure, and the top and the bottom of the cylinder body are respectively connected and sealed by the upper sealing cover and the lower sealing cover
In some alternative embodiments, two side splicing edges of the left half cylinder body and the right half cylinder body are respectively provided with a clamping protrusion 5 and a clamping groove 6 which are configured, and are clamped and fastened through the clamping protrusions and the clamping grooves.
In some alternative embodiments, the side wall of the cylinder is embedded with a transparent viewing window 7, and the transparent viewing window is provided with vertical height graduation marks with graduation value of 1mm.
In some alternative embodiments, the top and bottom of the cylinder are provided with external threads, and the upper and lower sealing covers are provided with internal threads, which are fastened by threaded connection.
In some alternative embodiments, the height of the cylinder is 450-550 mm, the diameter is 55-65 mm, and the transparent observation window is embedded in the upper middle part of the cylinder and is 150-250 mm in height.
In some alternative embodiments, the cartridge and the upper and lower seal caps are made of stainless steel.
When the device is used, the device for measuring the bleeding rate and the free expansion rate of mortar/clean mortar is placed in a standard maintenance room, joints are cleaned, the cylinder is spliced relatively, an upper sealing cover and a lower sealing cover are connected and then are placed on a flat table top, cement paste is slowly poured into 800 mL+/-10 mL of the cylinder, the sealing cover is covered, the mortar/clean water bleeding rate and the free expansion rate are placed for 1min, the liquid level scale value a 1 is recorded, the bleeding surface height a 2 and the cement paste expansion surface height a 3 are measured respectively after the mortar/clean mortar bleeding rate and the free expansion rate are placed for 3h and 24h, and the standard calculation result is obtained. After the measurement is completed, the upper end sealing cover and the lower sealing cover are unscrewed, the left half cylinder body and the right half cylinder body are separated, cleaned and used next time.
The embodiments described above are some, but not all embodiments of the application. The detailed description of the embodiments of the application is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Claims (6)
1. The free bleeding rate and expansion rate measuring device is characterized by comprising an upper sealing cover, a cylinder body and a lower sealing cover, wherein the cylinder body is formed by splicing a left half cylinder body and a right half cylinder body to form a cylindrical cylinder structure, and the top and the bottom of the cylinder body are respectively connected and sealed through the upper sealing cover and the lower sealing cover.
2. The device for measuring free bleeding rate and expansion rate according to claim 1, wherein two side splicing edges of the left half cylinder body and the right half cylinder body are respectively provided with a clamping protrusion and a clamping groove which are configured, and the left half cylinder body and the right half cylinder body are clamped and fastened through the clamping protrusions and the clamping grooves.
3. The device for measuring free bleeding rate and expansion rate according to claim 2, wherein a transparent observation window is embedded in the side wall of the cylinder, and vertical height graduation lines with graduation values of 1mm are arranged on the transparent observation window.
4. A free bleeding rate and expansion rate measuring device according to claim 1 or 3, wherein the top and bottom of the cylinder are provided with external threads, and the upper and lower sealing covers are provided with internal threads, which are fastened by screw connection.
5. A free bleeding rate and expansion rate measuring device according to claim 3, wherein the cylinder is 450-550 mm high and 55-65 mm in diameter, and the transparent observation window is embedded in the upper middle part of the cylinder and 150-250 mm high.
6. A free bleeding rate and expansion rate measuring device according to claim 1 or 5, wherein the cylinder and the upper and lower sealing covers are made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322652331.0U CN221174643U (en) | 2023-09-27 | 2023-09-27 | Free bleeding rate and expansion rate measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322652331.0U CN221174643U (en) | 2023-09-27 | 2023-09-27 | Free bleeding rate and expansion rate measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221174643U true CN221174643U (en) | 2024-06-18 |
Family
ID=91536447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322652331.0U Active CN221174643U (en) | 2023-09-27 | 2023-09-27 | Free bleeding rate and expansion rate measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221174643U (en) |
-
2023
- 2023-09-27 CN CN202322652331.0U patent/CN221174643U/en active Active
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