CN206756630U - A kind of experimental rig for determining cement density - Google Patents
A kind of experimental rig for determining cement density Download PDFInfo
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- CN206756630U CN206756630U CN201720698844.7U CN201720698844U CN206756630U CN 206756630 U CN206756630 U CN 206756630U CN 201720698844 U CN201720698844 U CN 201720698844U CN 206756630 U CN206756630 U CN 206756630U
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Abstract
The utility model discloses a kind of experimental rig for determining cement density, it includes Water Tank with Temp.-controlled（5）, in Water Tank with Temp.-controlled（5）Inside it is provided with Li Shi specific gravity bottles（3）, in Li Shi specific gravity bottles（3）Top be provided with cement filling tube（1）With kerosene pipe tubulature（2）, in Li Shi specific gravity bottles（3）Inside it is plugged with liquid level sensor（4）.The utility model is that the Li Shi specific gravity bottles for measuring density are placed in Water Tank with Temp.-controlled, the experiment of whole measure cement density is carried out in Water Tank with Temp.-controlled, can thus avoid influence of the temperature to test accuracy；Cement filling tube and kerosene pipe tubulature are provided with the top of Li Shi specific gravity bottles, cement filling tube and the tubulature of kerosene pipe are made using brilliant material is attained, it does not bond cement in the dry state, the cement in filling cement can be so avoided to be bonded in elongated necks, ensure the basic noresidue after importing of anhydrous kerosene, and then test error can be reduced.
Description
Technical field
The field of construction material detection is the utility model is related to, specially a kind of experimental rig for determining cement density.
Background technology
Cement is widely used in the engineerings such as the civil construction, water conservancy, national defence in China as a kind of important binder materials.
Cement density is an important physical index of cement, can not only characterize the quality of cement, while is also in mix-design
An important parameter, therefore cement dispatch from the factory, be both needed to before onsite application determine cement density.Now,《Cement density measure side
Method》（GB/T208-94）Middle regulation determines the density of cement using Li Shi bottles method, but is existed using this method in continuous mode
Certain error, it need to typically be repeatedly measured.Specific deficiency is as follows：
（1）Because the upper opening of Li Shi bottles is smaller, when toward filling cement in Li Shi bottles, cement is easily bonded in top
At thin neck, or unrestrained phenomenon outside be present, cause test result bigger than normal；
（2）Often room temperature is difficult to be accurately controlled during experiment, and existing detection method need to be in Water Tank with Temp.-controlled
Reading is taken out after constant temperature, causes testing result to produce fluctuation with the change of room temperature；
（3）Artificial reading is needed during experiment, the measurement result of different people often has a little difference, causes result of the test
In the presence of certain personal error.
The content of the invention
The deficiency of the utility model in order to solve the above-mentioned technical problem, there is provided a kind of experimental rig for determining cement density,
Overall process belongs to semiautomation operation, not only makes detection process easier, shortens detection time, and reduce in operating process
Personal error, instrument error etc..
To solve the above problems, the technical solution of the utility model is：
The experimental rig of cement density is determined, it includes Water Tank with Temp.-controlled, Li Shi specific gravity bottles is provided with Water Tank with Temp.-controlled,
The top of Li Shi specific gravity bottles is provided with cement filling tube and kerosene pipe tubulature, and liquid level sensor is plugged with Li Shi specific gravity bottles.
The experimental rig of foregoing measure cement density is that heater strip and temperature sensor are provided with Water Tank with Temp.-controlled.
The experimental rig of foregoing measure cement density is that described cement filling tube and the tubulature of kerosene pipe are to attain brilliant material
The body of making.
Compared with the prior art, the utility model is that the Li Shi specific gravity bottles for measuring density are placed in Water Tank with Temp.-controlled,
The experiment of whole measure cement density is carried out in Water Tank with Temp.-controlled, can thus avoid influence of the temperature to test accuracy；
The top of Li Shi specific gravity bottles is provided with cement filling tube and kerosene pipe tubulature, and cement filling tube and the tubulature of kerosene pipe, which use, attains brilliant material
Make, it does not bond cement in the dry state, can so avoid the cement in filling cement from being bonded in elongated necks, it is ensured that
The basic noresidue after importing of anhydrous kerosene, and then test error can be reduced.The liquid level sensor is mainly determination test
During kerosene volume change, this sensor uses highly sensitive silicon pressure drag force sensing element, can accurately react liquid level
Change, can draw the change of no volume, precision 0.01ml through conversion.The Water Tank with Temp.-controlled is by incubator, heater strip, temperature
Sensor group is spent into the temperature that can be set based on the test carries out quick heating and constant temperature, and heater strip power is 20kw/h, and temperature passes
The sensitivity of sensor is 0.1 DEG C.The acquisition operations system mainly includes instrumentation control system, information acquisition system and calculates system
System.The setting of instrumentation control system major control test temperature, soaking time, control system when beyond the scope of test requirements document
Automatically turn on heating mode and early warning etc.；Information acquisition system mainly gathers the change of liquid level in experimental rig by liquid level sensor
Change；Computing system mainly calculates cement density, precision 0.01g/cm according to the test data of collection3。
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment 1, as shown in figure 1, the experimental rig of measure cement density, it includes Water Tank with Temp.-controlled 5, in Water Tank with Temp.-controlled 5
Inside it is provided with Li Shi specific gravity bottles 3, Li Shi specific gravity bottles are the major part of this test apparatus, and bottom volume is 250ml, elongated necks band
Graduated volumetric is 23ml.Cement filling tube 1 and kerosene pipe tubulature 2 are provided with the top of Li Shi specific gravity bottles 3, described cement is filling
Pipe 1 and kerosene pipe tubulature 2 are to attain the body that brilliant material makes.Liquid level sensor 4 is plugged with Li Shi specific gravity bottles 3, in constant temperature
It is provided with heater strip 6 and temperature sensor 7 in tank 5, liquid level sensor 4, heater strip 6 and temperature sensor 7 are and acquisition operations
System connects.
This experimental rig determines simple to operate during cement density, it is only necessary to which 1 human users, test procedure are as follows：
（1）By the cement sample that need to be detected by 0.9mm square hole screens, and 1h is dried at a temperature of 110 ± 5 DEG C, and dry
Room temperature is cooled in dry device（Room temperature should be controlled at 20 ± 1 DEG C）；
（2）Cement 60g is weighed, is accurate to 0.01g.
（3）Anhydrous kerosene is injected in Li Shi specific gravity bottles 3 to 0~1ml along kerosene filling tube 2, magnetic bar is added, covers bottle
Plug.
（4）Experimental rig is opened, the test temperature of Water Tank with Temp.-controlled 5 is set（20±1℃）, constant temperature time（30~60min）,
Clicking operation interface（8）V1, that is, pass through liquid level sensor（4）Record the initial reading of anhydrous kerosene.
（5）Load weighted cement sample is little by little fitted into Li Shi specific gravity bottles 3 along cement filling tube 1 with small spoon, and made
With magnetic agitation, until bubble-free is discharged, continue constant temperature at least 30min, the corresponding button in clicking operation interface 8-pass through
Liquid level sensor 4 records the rereading of anhydrous kerosene.
（6）" calculating " in clicking operation interface 8, you can draw the density of cement sample, precision 0.01g/cm3。
（7）Experimental rig is cleaned after being completed, dried, in case next time uses.
Claims (3)
1. a kind of experimental rig for determining cement density, it includes Water Tank with Temp.-controlled（5）, it is characterised in that：In Water Tank with Temp.-controlled（5）It is interior
It is provided with Li Shi specific gravity bottles（3）, in Li Shi specific gravity bottles（3）Top be provided with cement filling tube（1）With kerosene pipe tubulature（2）,
Li Shi specific gravity bottles（3）Inside it is plugged with liquid level sensor（4）.
2. the experimental rig of measure cement density according to claim 1, it is characterised in that：In Water Tank with Temp.-controlled（5）Inside set
There is heater strip（6）And temperature sensor（7）.
3. the experimental rig of measure cement density according to claim 1, it is characterised in that：Described cement filling tube
（1）With kerosene pipe tubulature（2）To attain the body that brilliant material makes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720698844.7U CN206756630U (en) | 2017-06-15 | 2017-06-15 | A kind of experimental rig for determining cement density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720698844.7U CN206756630U (en) | 2017-06-15 | 2017-06-15 | A kind of experimental rig for determining cement density |
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| Publication Number | Publication Date |
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| CN206756630U true CN206756630U (en) | 2017-12-15 |
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| CN201720698844.7U Active CN206756630U (en) | 2017-06-15 | 2017-06-15 | A kind of experimental rig for determining cement density |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858093A (en) * | 2021-03-22 | 2021-05-28 | 中铁一局集团第五工程有限公司 | Cement density test method |
-
2017
- 2017-06-15 CN CN201720698844.7U patent/CN206756630U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858093A (en) * | 2021-03-22 | 2021-05-28 | 中铁一局集团第五工程有限公司 | Cement density test method |
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