CN109959604B - Device and method for testing layering degree of ceramsite concrete - Google Patents
Device and method for testing layering degree of ceramsite concrete Download PDFInfo
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- CN109959604B CN109959604B CN201910133630.9A CN201910133630A CN109959604B CN 109959604 B CN109959604 B CN 109959604B CN 201910133630 A CN201910133630 A CN 201910133630A CN 109959604 B CN109959604 B CN 109959604B
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- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000012360 testing method Methods 0.000 title claims abstract description 35
- 238000005259 measurement Methods 0.000 claims abstract description 7
- 230000005484 gravity Effects 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 26
- 239000011521 glass Substances 0.000 claims description 17
- 230000008569 process Effects 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 239000000956 alloy Substances 0.000 claims description 5
- 238000005303 weighing Methods 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention relates to the technical field of lightweight aggregate concrete detection, in particular to a haydite concrete layering degree testing device and method, comprising a columnar measuring cylinder for containing haydite concrete, an auxiliary measuring rod and a tension meter, wherein the columnar measuring cylinder is internally provided with a cavity with a closed lower end and an open upper end, the upper end of the columnar measuring cylinder is detachably connected with a cover plate, the middle part of the cover plate is connected with one end of the auxiliary measuring rod, the other end of the auxiliary measuring rod is connected with the tension meter, and the edge of the cover plate is provided with a fulcrum connecting part; the haydite concrete layering degree testing device adopting the technical scheme of the invention can measure layering degree for a plurality of times according to the test or engineering requirements, has higher accuracy of the measurement result, is convenient to use, and is easy to popularize and use.
Description
Technical Field
The invention relates to the technical field of lightweight aggregate concrete detection, in particular to a device and a method for testing the layering degree of ceramsite concrete.
Background
In recent years, lightweight aggregate concrete has been developed rapidly in the world, especially the ceramsite concrete therein, because of its good heat resistance and fire resistance, it has been widely applied in the fields of house construction, bridges, ships and kiln foundations, some researchers have developed the performance of the ceramsite concrete and have obtained some achievements, but there are many technical problems to be studied and perfected, especially because the ceramsite density is much smaller than other components such as fly ash and cement in the concrete, the ceramsite in the concrete is easy to float up, thus the layering phenomenon of ceramsite and slurry is caused, the working performance of the ceramsite concrete is affected by the layering of the ceramsite concrete, in order to study the layering problem, the situation of the ceramsite floating up of the ceramsite concrete needs to be observed and counted in the experimental process, thus the technical adjustment of the mixing ratio is needed in time.
At present, no special tool is used for detecting the layering condition of ceramsite concrete, and only a method for detecting the uniformity of general lightweight aggregate concrete is adopted, the three metal cylinders are mainly used for vibrating concrete with different height and equal volume, then the three metal cylinders are split for cleaning and screening, so that the layering condition of the lightweight aggregate concrete is observed and counted, and the related performances such as the uniformity of the lightweight aggregate concrete are evaluated, and the problems are that: the collecting and weighing processes of equal volumes of concrete measured at different heights are troublesome, the metal cylinders are generally required to be sequentially taken down from top to bottom, the concrete of each layer is manually collected after the metal cylinders are taken down, the concrete of each layer is collected, weighed, cleaned, screened, collected and weighed, the whole operation process is troublesome, time and labor are wasted, the whole experiment can only count one result, the layering situation cannot be observed and counted in real time, the manual operation error is large, and the accuracy of the measurement result is difficult to ensure.
Disclosure of Invention
The invention aims to solve the technical problem of providing a haydite concrete layering degree testing device and a haydite concrete layering degree testing method, so that the haydite concrete layering degree testing device and the haydite concrete layering degree testing method can measure layering degree conditions in real time according to test or engineering requirements, are more convenient to operate and are easier to popularize and use.
In order to solve the technical problems, the invention provides a haydite concrete layering degree testing device which comprises a columnar measuring cylinder for containing haydite concrete, an auxiliary measuring rod and a tension meter, wherein the inside of the columnar measuring cylinder is a cavity with a closed lower end and an open upper end, the upper end of the columnar measuring cylinder is detachably connected with a cover plate, the middle part of the cover plate is connected with one end of the auxiliary measuring rod, the other end of the auxiliary measuring rod is connected with the tension meter, a fulcrum connecting part is arranged at the edge of the cover plate, the center of gravity of the hollow columnar measuring cylinder is overlapped with the center of gravity of the columnar measuring cylinder filled with uniform concrete, and the hollow columnar measuring cylinder and the auxiliary measuring rod in a normal state are balanced by taking the fulcrum connecting part as a lever center.
Preferably, the cover plate is in threaded connection with the columnar measuring cylinder.
Preferably, for convenient hooking, the fulcrum connection part is a hook or a hanging ring, and the hook or the hanging ring is connected with a hanging rope for hanging the whole columnar measuring cylinder.
Preferably, the auxiliary measuring rod is of a telescopic structure, the auxiliary measuring rod is made of an aluminum alloy material, the section of the auxiliary measuring rod is an elliptical surface, the pulling force acting on the fulcrum connecting part, the long axis of the elliptical surface and the pulling force direction of the tension meter are all perpendicular to a horizontal plane, the auxiliary measuring rod adopts the telescopic structure to adjust the length of a force arm at one side of the auxiliary measuring rod, so that more accurate reading of the pulling force F of the tension meter is realized, the value of a force arm L 2 at the other side of the columnar measuring cylinder obtained by a formula L 2= F*L1/ m2 g is also more accurate, and the gravity center deviation difference K can be obtained more accurately under the condition that the gravity center in the columnar measuring cylinder moves down less; the auxiliary measuring rod made of the aluminum alloy material has the advantage of light weight; the cross section of auxiliary measuring rod is oval design, and acts on the holding power or the pulling force of fulcrum connecting portion the major axis of oval face the pulling force direction of tensiometer all is perpendicular to the horizontal plane, can promote the in-process of carrying out the pull-down to auxiliary measuring rod, the intensity of this auxiliary measuring rod.
Preferably, in order to facilitate the installation of the auxiliary measuring rod, a connecting groove detachably connected with the auxiliary measuring rod is formed in the middle of the cover plate.
Preferably, in order to facilitate observation of the horizontal state of the columnar measuring cylinder, the balance structure for judging the balance position is further included, and the balance structure is arranged on the columnar measuring cylinder or the auxiliary measuring rod.
Preferably, the balance structure comprises a transparent shell, wherein liquid is filled in the transparent shell, and a horizontal scale line for judging whether the liquid level of the liquid in the transparent shell is horizontal is arranged outside the transparent shell.
Preferably, the transparent shell is a glass tube, and the liquid in the glass tube is colored liquid.
The invention also provides a use method of the haydite concrete layering degree testing device, which comprises the following steps:
step one: filling ceramsite concrete into a columnar measuring cylinder, trowelling the surface, and covering a cover plate;
Step two: vertically placing and fixing the columnar measuring cylinder on a storage table for standing;
Step three: after the completion of standing, the columnar measuring tube is horizontally placed, the auxiliary measuring rod is arranged on the cover plate, the auxiliary measuring rod is adjusted to a proper length, the tension meter is hung on one end, far away from the columnar measuring tube, of the auxiliary measuring rod, the whole testing device is hung by adopting a hanging rope through a hook or a hanging ring, the proper length is usually larger than the length of one side of the columnar measuring tube, so that the gravity center position change of the columnar measuring tube can be finally reflected through moment balance calculation, and if the gravity center position change is a multiple of the length of the columnar measuring tube, the gravity center position change can be amplified well.
Step four: the pull gauge is slowly pulled downwards vertically, the influence of dynamic load on the pull gauge is reduced, the whole testing device is adjusted to be in a horizontal state, whether the liquid level of liquid in the glass tube is flush with a horizontal scale mark on the glass tube or not is observed in the adjusting process, if the liquid level of liquid in the glass tube is flush with the horizontal scale mark on the glass tube, the gravity value F on the pull gauge is read out at the moment, and because the gravity center position of one side of the columnar measuring tube is uncertain, the force arm L 2 of one side of the columnar measuring tube is unknown, and then the force arm of the one side of the columnar measuring tube is L 2, and the principle of lever balance is adopted: m 2g*L2= F*L1, giving: l 2= F*L1/ m2 g;
Step five: in the initial state, as the ceramsite concrete is in a uniform state, the center of gravity in the columnar measuring tube is arranged in the middle of the columnar measuring tube, the distance between the center of gravity and the fulcrum of the columnar measuring tube is L 0=a* L1,a、L1, and a and L 0 are known numbers; after the columnar measuring cylinder stands, because the buoyancy of the ceramsite, if the ceramsite floats upwards, the uniformity of ceramsite concrete can change, the gravity center can move downwards to a certain extent, and the distance from the gravity center to the fulcrum at the moment is the length L 2 of the side force arm, so that the value of the layering degree K can be obtained by comparing the difference value between the force arm L 2 and the original force arm L 0 after the gravity center is deviated, and therefore K=L 2-L0 is further obtained: k=l 2-a*L1, taken together: it can be obtained that the larger the k=f×l 1/m2g- a*L1, the worse the uniformity of the ceramsite concrete, the smaller the K value, and the better the uniformity;
Wherein: f is the measurement data of the tension meter, and is a known number; l 1 is the length of the auxiliary measuring rod and is a known number; m 2 is the mass sum of the columnar measuring tube and the ceramsite concrete in the columnar measuring tube, and is obtained by weighing and is a known number; g is the gravity coefficient.
The ceramsite concrete layering degree testing device and method adopting the technical scheme have the beneficial effects that:
1. According to the invention, a lever balance principle is adopted, the value of the force arm on one side of the columnar measuring cylinder to be measured after standing can be calculated through the relation between the force arm and gravity, so that the position of the stress is obtained, and the larger the difference value is, the larger the gravity point deviation is, the worse the uniformity of ceramsite concrete is, the smaller the difference value is, the smaller the gravity point deviation is, the better the uniformity of ceramsite concrete is, and the measuring mode only needs to pull one end of the auxiliary measuring rod through a tension meter until the columnar measuring cylinder is in a horizontal state, and the tensile value is accurately read at the moment, so that the judgment of the layering degree of the ceramsite concrete can be realized through the testing method of the invention, and the whole operation process is simple and convenient, and the accurate calculation and measurement can be realized;
2. Because only one columnar measuring cylinder is adopted, the complex installation and connection process of a plurality of measuring cylinders is omitted, the device structure is simplified, the equipment cost is low, and the popularization and the use are easy;
3. The invention can directly use the preset constant value of the system, then only input the measured value of the tension meter into the processor according to the measured result, the processor directly obtains the layering degree, and the display displays whether the measured result is qualified or not, so that the whole measuring process has high automation degree.
4. The invention adopts the whole measurement of the ceramsite concrete in the columnar measuring cylinder, does not need to measure the mass of each layer of equal volume concrete in a layering way, does not need to wash, screen and weigh each layer of concrete, has simpler measuring operation steps, more accurate measuring results compared with manual operation, and more importantly, can measure the layering degree of the same ceramsite concrete for multiple times.
Drawings
FIG. 1 is a schematic diagram of the structure of the present test apparatus;
FIG. 2 is a schematic diagram of another embodiment of the test apparatus;
FIG. 3 is a cross-sectional view of the auxiliary measuring rod;
FIG. 4 is a schematic structural view of a cover plate;
FIG. 5 is a schematic structural view of a balancing structure;
fig. 6 is a schematic view of a structure in which a column-shaped measuring cylinder is placed on a placement table.
Wherein: a columnar measuring cylinder 1; an auxiliary measuring rod 2; a tension meter 3; a cover plate 4; a fulcrum connection part 5; a connecting groove 6; a balancing structure 7; a transparent case 8; horizontal graduation marks 9; a hanging rope 10; a storage table 11.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings and examples:
Example 1
As shown in fig. 1, a haydite concrete layering degree testing arrangement, including being used for adorning haydite concrete's column measuring cylinder 1, wherein, still include auxiliary measuring pole 2 and tensiometer 3, column measuring cylinder 1 inside is the lower extreme and seals, and upper end open-ended cavity hangs column measuring cylinder 1's in-process, in order to guarantee that inside haydite concrete does not leak, column measuring cylinder 1's upper end can be dismantled and be connected with apron 4, apron 4's middle part with auxiliary measuring pole 2's one end is connected, auxiliary measuring pole 2's the other end with tensiometer 3 is connected, and apron 4 can adopt threaded connection, joint's connected mode, in this embodiment, apron 4 adopts threaded connection with column measuring cylinder 1, and apron 4's edge still is equipped with fulcrum connecting portion 5, and this column measuring cylinder 1 is ¢ mm×300 mm's cylinder, high 200mm-300mm.
Example 2
This embodiment is optimally defined based on embodiment 1 described above.
As shown in fig. 1, the fulcrum connection portion 5 is a hook for convenience of hooking.
Example 3
This embodiment is optimally defined based on embodiment 1 described above.
As shown in fig. 2, the fulcrum connection portion 5 is a hanging ring for convenience of hanging.
Example 4
This embodiment is optimally defined based on the above embodiment 2 or 3.
As shown in fig. 3, the auxiliary measuring rod 2 is of a telescopic structure, the auxiliary measuring rod 2 is made of an aluminum alloy material, the section of the auxiliary measuring rod 2 is an elliptical surface, the tension force acting on the fulcrum connecting part 5, the long axis of the elliptical surface and the tension force direction of the tension meter 3 are all perpendicular to the horizontal plane, the auxiliary measuring rod 2 adopts a telescopic structure to adjust the length of a force arm at one side of the auxiliary measuring rod 2, so that more accurate reading of the tension force F of the tension meter 3 is realized, the value of the force arm L 2 at one side of the columnar measuring tube 1 obtained by the formula L 2= F*L1/ m2 g is also more accurate, and the gravity center deviation difference K can not be accurately obtained under the condition that the gravity center in the columnar measuring tube 1 is not much moved downwards; the auxiliary measuring rod 2 made of aluminum alloy material has the advantage of light weight; the cross section of the auxiliary measuring rod 2 is of an elliptical design, and the supporting force or the pulling force acting on the fulcrum connecting part 5, the long axis of the elliptical surface and the pulling force direction of the tension meter 3 are all perpendicular to the horizontal plane, so that the strength of the auxiliary measuring rod 2 can be improved in the process of pulling down the auxiliary measuring rod 2.
Example 5
This embodiment is optimally defined based on embodiment 4 described above.
As shown in fig. 4, in order to facilitate the installation of the auxiliary measuring rod 2, a connecting groove 6 detachably connected with the auxiliary measuring rod 2 is provided in the middle of the cover plate 4.
Example 6
This embodiment is optimally defined based on embodiment 5 described above.
As shown in fig. 1, 2 and 5, in order to facilitate observation of the horizontal state of the cylindrical measuring cylinder 1, a balance structure 7 for judging the balance position is further included, and the balance structure 7 is provided on the cylindrical measuring cylinder 1 or the auxiliary measuring rod 2.
Example 7
This embodiment is optimally defined based on embodiment 6 described above.
As shown in fig. 5, the balance structure 7 includes a transparent casing 8, liquid is contained in the transparent casing 8, and a horizontal scale line 9 for judging whether the liquid level of the liquid in the transparent casing 8 is horizontal is provided outside the transparent casing 8.
Example 8
This embodiment is optimally defined based on embodiment 7 described above.
As shown in fig. 5, the transparent case 8 is a glass tube, and the liquid in the glass tube is a colored liquid.
The invention also provides a use method of the haydite concrete layering degree testing device, which comprises the following steps:
step one: filling ceramsite concrete into the columnar measuring cylinder 1, trowelling the surface, and covering the cover plate 4;
Step two: as shown in fig. 6, the column-shaped measuring cylinder 1 is vertically placed on the placement table 11 and is sufficiently left standing;
Step three: after the completion of standing, the standing time is usually selected to be 3 hours, the column-shaped measuring tube 1 is placed horizontally, the auxiliary measuring rod 2 is mounted on the cover plate 4, the length of the auxiliary measuring rod 2 is adjusted to be consistent with the length of the column-shaped measuring tube 1 or the length of the auxiliary measuring rod 2 is a multiple of the length of the column-shaped measuring tube 1, the length of the auxiliary measuring rod 2 is consistent with the length of the column-shaped measuring tube 1 in the embodiment, the tension gauge 3 is hung on one end, far away from the column-shaped measuring tube 1, of the auxiliary measuring rod 2, and the whole testing device is hung up by adopting the hanging rope 10 through a hook.
Step four: the pull-down tension meter 3 is slowly pulled down perpendicularly, the whole testing device is adjusted to be in a horizontal state, whether the liquid level of liquid in the glass tube is flush with the horizontal scale mark 9 on the glass tube or not is observed in the adjusting process, if the liquid level is flush with the horizontal scale mark 9 on the glass tube, the gravity value F on the pull-down tension meter 3 is read out at the moment, and as the fulcrum position of the whole balanced state is at the port of the columnar measuring tube 1, the force arm at the side of the columnar measuring tube 1 is set to be L 2, and the lever balancing principle is adopted: f x L 1= m2g*L2, gives: l 2= F*L1/ m2 g;
Step five: in the initial state, as the ceramsite concrete is in a uniform state, the center of gravity in the columnar measuring tube is in the middle of the columnar measuring tube, the distance between the center of gravity and the fulcrum of the columnar measuring tube is L0=aL1 (0 < a <1/b, b > =2 and is an integer), a and L1 can be set, and a and L1 are known numbers; after the columnar measuring cylinder 1 stands still, as the uniformity of the ceramsite concrete can change, the gravity center can move downwards to a certain extent, and the distance from the gravity center to the fulcrum at the moment is the length L 2 of the side force arm, so that the value of the layering degree K can be obtained by comparing the difference value between the force arm L 2 and the original force arm L 0 after the gravity center shifts, and therefore K=L 2- L0 is further obtained: k=l 2- a* L1, taken together: it can be obtained that the larger the k=l 1/ m2g - a* L1, the worse the uniformity of the ceramsite concrete, the smaller the K value, and the better the uniformity;
Wherein: f is the measurement data of the tension meter 3, and is a known number; l 1 is the length of the auxiliary measuring rod 2 and is a known number; m 2 is the mass sum of the columnar measuring tube and the ceramsite concrete in the columnar measuring tube, and is obtained by weighing and is a known number; g is the gravity coefficient.
The traditional layering measuring instrument needs to be manually cleaned after being used, the automation degree is not high, and the invention can be provided with a corresponding high-pressure water gun or an ultrasonic cleaning device to flush the used columnar measuring cylinder 1 and clean aggregate residues and slurry after the test.
The foregoing is merely a preferred embodiment of the invention, and it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the invention, and these should also be considered as the scope of the invention, which does not affect the effect of the invention implementation and the utility of the patent.
Claims (8)
1. The use method of the haydite concrete layering degree testing device is characterized in that the testing device comprises a columnar measuring cylinder for containing haydite concrete, an auxiliary measuring rod and a tension meter, wherein the inside of the columnar measuring cylinder is provided with a cavity with a closed lower end and an open upper end, the upper end of the columnar measuring cylinder is detachably connected with a cover plate, the middle part of the cover plate is connected with one end of the auxiliary measuring rod, the other end of the auxiliary measuring rod is connected with the tension meter, the edge of the cover plate is provided with a fulcrum connecting part, the center of gravity of the hollow columnar measuring cylinder is overlapped with the center of gravity of the columnar measuring cylinder filled with uniform concrete, and the hollow columnar measuring cylinder and the auxiliary measuring rod in a normal state are balanced by taking the fulcrum connecting part as a lever center;
the method comprises the following steps:
step one: filling ceramsite concrete into a columnar measuring cylinder, trowelling the surface, and covering a cover plate;
step two: vertically placing the columnar measuring cylinder on a storage table, and fully standing;
Step three: after standing for a prescribed time, horizontally placing the columnar measuring cylinder, mounting an auxiliary measuring rod on the cover plate, adjusting the auxiliary measuring rod to a proper length, hanging a tension meter on one end of the auxiliary measuring rod far away from the columnar measuring cylinder, and hanging the whole testing device by adopting a hanging rope through a hook or a hanging ring;
step four: the pull gauge is pulled downwards slowly, the whole testing device is adjusted to be in a horizontal state, whether the liquid level of liquid in the glass tube is flush with a horizontal scale mark on the glass tube or not is observed in the adjusting process, if the liquid level of the liquid in the glass tube is flush with the horizontal scale mark on the glass tube, the gravity value F on the pull gauge is read out at the moment, the force arm L 2 on one side of the columnar measuring tube is unknown, the force arm on the other side of the columnar measuring tube is L 2, and the lever balance principle is adopted: m 2g*L2=F*L1, giving: l 2=F*L1/m2 g;
Step five: in the initial state, as the ceramsite concrete is in a uniform state, the center of gravity in the columnar measuring tube is arranged in the middle of the columnar measuring tube, the distance between the center of gravity and the fulcrum of the columnar measuring tube is L 0=a*L1,a、L1, and a and L 0 are known numbers; after the columnar measuring cylinder stands, due to the buoyancy of ceramsite, the uniformity of ceramsite concrete can change, the gravity center can move downwards to a certain extent, and the distance from the gravity center to the fulcrum at the moment is the length L 2 of the side force arm, so that the value of layering degree K can be obtained by comparing the difference value between the force arm L 2 and the original force arm L 0 after the gravity center is deviated, and therefore K=L 2-L0 is further obtained: k=l 2-a*L1, taken together: it can be obtained that the larger the k=f×l 1/m2g-a*L1, the worse the uniformity of the ceramsite concrete, the smaller the K value, and the better the uniformity;
Wherein: f is the measurement data of the tension meter, and is a known number; l 1 is the length of the auxiliary measuring rod and is a known number; m 2 is the mass sum of the columnar measuring tube and the ceramsite concrete in the columnar measuring tube, and is obtained by weighing and is a known number; g is the gravity coefficient.
2. The method for using the haydite concrete layering degree testing device according to claim 1, wherein the method comprises the following steps: the cover plate is connected with the columnar measuring cylinder in a clamping or threaded mode.
3. The method for using the haydite concrete layering degree testing device according to claim 1, wherein the method comprises the following steps: the fulcrum connecting part is a hook or a hanging ring, and the hook or the hanging ring is connected with a hanging rope for hanging the whole columnar measuring cylinder.
4. The method for using the haydite concrete layering degree testing device according to claim 1, wherein the method comprises the following steps: the auxiliary measuring rod is of a telescopic structure and is made of aluminum alloy materials, the section of the auxiliary measuring rod is an elliptical surface, and the pulling force acting on the fulcrum connecting part, the long axis of the elliptical surface and the pulling force direction of the pulling force meter are all perpendicular to the horizontal plane.
5. The method for using the haydite concrete layering degree testing device according to claim 1, wherein the method comprises the following steps: the middle part of apron be equipped with auxiliary measuring rod detachable connection's spread groove.
6. The method for using the haydite concrete layering degree testing device according to claim 1, wherein the method comprises the following steps: the balance structure is arranged on the columnar measuring cylinder or the auxiliary measuring rod.
7. The method for using the haydite concrete layering degree testing device according to claim 6, wherein the method comprises the following steps: the balance structure comprises a transparent shell, wherein liquid is filled in the transparent shell, and horizontal scale marks for judging whether the liquid level of the liquid in the transparent shell is horizontal or not are arranged outside the transparent shell.
8. The method for using the haydite concrete layering degree testing device according to claim 7, wherein the method comprises the following steps: the transparent shell is a glass tube, and the liquid in the glass tube is colored liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910133630.9A CN109959604B (en) | 2019-02-22 | Device and method for testing layering degree of ceramsite concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910133630.9A CN109959604B (en) | 2019-02-22 | Device and method for testing layering degree of ceramsite concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109959604A CN109959604A (en) | 2019-07-02 |
| CN109959604B true CN109959604B (en) | 2024-05-31 |
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