CN202372412U - Performance simulation test device for constant negative temperature concrete - Google Patents
Performance simulation test device for constant negative temperature concrete Download PDFInfo
- Publication number
- CN202372412U CN202372412U CN2011205264987U CN201120526498U CN202372412U CN 202372412 U CN202372412 U CN 202372412U CN 2011205264987 U CN2011205264987 U CN 2011205264987U CN 201120526498 U CN201120526498 U CN 201120526498U CN 202372412 U CN202372412 U CN 202372412U
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- negative temperature
- concrete
- sensor
- test device
- temperature concrete
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Abstract
The utility model relates to the mechanical technical field, in particular to a performance simulation test device for constant negative temperature concrete, which comprises a test device body and is characterized in that a constant negative temperature test box is arranged at the center of a support of the test device, a container is arranged in the constant negative temperature test box, a sensor is arranged above the container, and a signal outlet of the sensor is connected with a signal inlet of a computer. Compared with the prior art, before the use of the negative temperature concrete, a frost-heave stress test is performed on the negative temperature concrete, thereby predicting the situation happening well, preparing preventive measures and improving the warning degree.
Description
Technical field
The utility model relates to field of mechanical technique, specifically permanent negative temperature concrete performance simulation testing apparatus.
Background technology
Obtained significant progress and rich experience for the negative temperature concrete operating technique at present, but relevant negative temperature concrete frost heave stress and to the research of concrete crushing strength influence seldom, concrete is at the aquation initial stage; Voidage is big, and moisture is sufficient, if it is in the subzero temperature environment; Inner meeting forms huge ice crystal; Volumetric expansion is about 9%, forms frost heave stress at inside concrete, and inside concrete is concentrated at the ambient stress that forms ice crystal; When frost heave stress surpasses this moment during concrete tensile strength values, can produce the crack; Perhaps when the heat absorption of the ice crystal in the concrete is melted; The volume of water is compared with ice reducing; Concrete inside stays many spaces, and it can directly have a strong impact on concrete strength development and permanance, and therefore studying the early stage frost heave stress of negative temperature concrete has very important meaning.
Summary of the invention
The utility model is the deficiency that overcomes prior art; A kind of equipment of testing its compressive strength specially for negative temperature concrete is provided; Do early stage test for negative temperature concrete; Better predict a series of situation that concrete is taken place in coming into operation, can in time carry out the precautionary measures, improve safe early warning.
For realizing above-mentioned purpose; Design a kind of permanent negative temperature concrete performance simulation testing apparatus, comprise the testing apparatus body, it is characterized in that: the support central authorities of testing apparatus are provided with negative Homothermal Proof Box; Be provided with container in the negative Homothermal Proof Box, the top of container is provided with sensor; The signal outlet of described sensor is connected with the signal input port of computer.
Described sensor comprises temperature sensor and intensity sensor.
The utility model is compared with prior art, before negative temperature concrete comes into operation, this negative temperature concrete is carried out the test of frost heave stress, better predicts what happens, and carries out the precautionary measures, improves the early warning degree.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the utility model structure vertical view.
Referring to Fig. 1, Fig. 2,1 is sensor, and 2 are negative Homothermal Proof Box, and 3 is support, and 4 is container, 5 is concrete.
Embodiment
According to accompanying drawing the utility model is done further explanation below.
Like Fig. 1, shown in Figure 2, support 3 central authorities of testing apparatus are provided with negative Homothermal Proof Box 2, are provided with container 4 in the negative Homothermal Proof Box 2, and the top of container 4 is provided with sensor 1; The signal outlet of described sensor 1 is connected with the signal input port of computer; Described sensor 1 comprises temperature sensor and intensity sensor.
After negative temperature concrete stirred; Pour into to container 4; Temperature is controlled at (20
2) ℃; Relative humidity is precuring 6 hours under 90% the environment; Negative temperature concrete after the precuring is packed in the negative Homothermal Proof Box 2 in the testing apparatus together with container, and adjust sensor 1, apply the power of 3KN in advance to negative temperature concrete; Respectively temperature is set in the situation of testing the frost heave stress of negative temperature concrete under perseverance-5 ,-10 ,-15 ℃ the situation then; Sensor 1 is given computer with the data transmission that is drawn, and analyzes.
Claims (2)
1. permanent negative temperature concrete performance simulation testing apparatus; Comprise the testing apparatus body; It is characterized in that: the support of testing apparatus (3) central authorities are provided with negative Homothermal Proof Box (2), are provided with container (4) in the negative Homothermal Proof Box (2), and the top of container (4) is provided with sensor (1); The signal outlet of described sensor (1) is connected with the signal input port of computer.
2. a kind of permanent negative temperature concrete performance simulation testing apparatus according to claim 1, it is characterized in that: described sensor (1) comprises temperature sensor and intensity sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205264987U CN202372412U (en) | 2011-12-15 | 2011-12-15 | Performance simulation test device for constant negative temperature concrete |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205264987U CN202372412U (en) | 2011-12-15 | 2011-12-15 | Performance simulation test device for constant negative temperature concrete |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202372412U true CN202372412U (en) | 2012-08-08 |
Family
ID=46596109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205264987U Expired - Fee Related CN202372412U (en) | 2011-12-15 | 2011-12-15 | Performance simulation test device for constant negative temperature concrete |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202372412U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743626A (en) * | 2014-02-08 | 2014-04-23 | 浙江大学 | Test apparatus and test method for reinforced concrete beam freeze thawing durability |
| CN108050983A (en) * | 2017-10-27 | 2018-05-18 | 中国石油天然气集团公司 | A kind of test device and method for cement concrete frost-heaving deformation under different temperatures |
| CN111426725A (en) * | 2020-03-12 | 2020-07-17 | 中国建筑材料科学研究总院有限公司 | Method and device for evaluating cement negative temperature hydration |
-
2011
- 2011-12-15 CN CN2011205264987U patent/CN202372412U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743626A (en) * | 2014-02-08 | 2014-04-23 | 浙江大学 | Test apparatus and test method for reinforced concrete beam freeze thawing durability |
| CN108050983A (en) * | 2017-10-27 | 2018-05-18 | 中国石油天然气集团公司 | A kind of test device and method for cement concrete frost-heaving deformation under different temperatures |
| CN111426725A (en) * | 2020-03-12 | 2020-07-17 | 中国建筑材料科学研究总院有限公司 | Method and device for evaluating cement negative temperature hydration |
| CN111426725B (en) * | 2020-03-12 | 2023-03-10 | 中国建筑材料科学研究总院有限公司 | Method and device for evaluating cement negative temperature hydration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qin Shuang Inventor after: Li Huanhuan Inventor after: He Dongming Inventor after: Dong Huan Inventor after: Xu Haitao Inventor after: Zhou Shiqiang Inventor before: Qin Huan Inventor before: Li Huanhuan Inventor before: He Dongming Inventor before: Dong Huan Inventor before: Xu Haitao Inventor before: Zhou Shiqiang |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: QIN HUAN LI HUANHUAN HE DONGMING DONG HUAN XU HAITAO ZHOU SHIQIANG TO: QIN SHUANG LI HUANHUAN HE DONGMING DONG HUAN XU HAITAO ZHOU SHIQIANG |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20151215 |
|
| EXPY | Termination of patent right or utility model |