CN2569143Y - Concrete rheometer - Google Patents
Concrete rheometer Download PDFInfo
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- CN2569143Y CN2569143Y CN 02257091 CN02257091U CN2569143Y CN 2569143 Y CN2569143 Y CN 2569143Y CN 02257091 CN02257091 CN 02257091 CN 02257091 U CN02257091 U CN 02257091U CN 2569143 Y CN2569143 Y CN 2569143Y
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Abstract
The utility model discloses a concrete rheometer. The utility model is composed of a frame, an electric motor, a material barrel, stirring fins, a torque sensor, a measuring instrument and a computer, wherein, the frame is composed of a horizontal base, two hollow upright posts which are connected with the horizontal base, and a horizontally upper bracket which lifts along the upright posts. The utility model is characterized in that a rotary disc is arranged on the base and is driven by a speed variable electric motor; the rotary disc is connected with a material barrel; the interior of the horizontal upper bracket is provided with shafts of the stirring fins, the torque sensor and the measuring instrument. The shape of the stirring fin is a cylinder type, a multiple-column type and a blade type. Through measuring torque under different rotation speeds, the rheological parameter of the measured concrete is obtained. The utility model has the advantages of simple structure, convenient operation, and reliable test result. The utility model can be used for the research of the laboratory on the concrete rheological performance, and can also be used for the control and the monitoring of the concrete quality on construction sites.
Description
Technical field
The utility model is a kind of instrument that is used to measure the Cracking of High Flowing Concrete rheological parameter, belongs to the measurement mechanism of rheological property of concrete and workability control.
Background technology
Be that the Cracking of High Flowing Concrete of representative has obtained widespread use in engineering with high performance concrete, pump concrete in recent years, but the instrumentation that never is used to estimate its serviceability and carries out quality control on construction.Tieing up the vigorous denseness and the slump is respectively the important indicator of reflection dry concrete and normal concrete serviceability, but is not suitable for Cracking of High Flowing Concrete.Carrying out the significance of rheological property of concrete research is recognized by people for a long time
[1-5], also paid close attention to the current an urgent demand that more becomes concrete scientific research and application by the lot of domestic and foreign experts and scholars.The laboratory method that is used at present to estimate high performance concrete and pump concrete workability both at home and abroad mainly is test of slump divergence and the L-flow test that is improved and expand on slump basis, but can't directly provide rheological parameter, be difficult to practical application on last journey.The cement and the concrete research institute of France road and bridge experimental center and Sweden
[6Once developed similarly concrete rheological instrument, and obtained experiment effect preferably, but the stone maximum particle diameter of mix must not be greater than 16mm, and instrument costs an arm and a leg, must use, be not easy to on-the-spot the use by personnel through specialized training.Still there is not this kind instrument both at home and abroad in the market.
Summary of the invention
The purpose of this utility model is to provide a kind of instrumentation of developing according to rheology principle that is used to measure the Cracking of High Flowing Concrete rheological parameters.This apparatus structure is simple, principle of work is clear and definite, processing ease, data are reliable, high in technological content, both can be used for the concrete performance research of standard laboratory, can be used for the quality control on construction of working-yard and concrete mixing plant again.
For achieving the above object, the utility model is achieved through the following technical solutions.The concrete rheological instrument is made up of framework, motor, barrel, stirring wing, torque sensor, measuring instrument and computing machine.Framework constitutes by horizontal base and two hollow columns that are attached thereto and along the horizontal upper bracket of column lifting.It is characterized in that the base top is provided with the rotating disk that is driven by change speed motor, rotating disk links to each other with barrel, and axle and the torque sensor and the instrument of stirring wing is installed in the horizontal upper bracket.
Stirring wing be shaped as drum type brake, polystyle and vane type.
Advantage of the present utility model is, simple in structure, easy to operate, reliable test result both can be used for breadboard rheological property of concrete research, can be used for the concrete Quality Control and the monitoring of working-yard again.
Description of drawings
Fig. 1 is that the structure of concrete rheological instrument is formed synoptic diagram.
Fig. 2 is a drum type brake stirring wing synoptic diagram
Fig. 3 is a polystyle stirring wing synoptic diagram
Fig. 4 is a vane type stirring wing synoptic diagram.
1 is horizontal base among the figure, and 2 is change speed motor, and 3 is hollow column, and 4 is horizontal upper bracket, and 5 is measuring instrument, and 6 is torque sensor, and 7 is stirring wing, and 8 is barrel, and 9 is rotating disk, and 10 is computing machine.
Embodiment
Use the test process of this concrete rheological instrument below in conjunction with description of drawings.Mix and stir the material 30kg barrel (or having mixed the mix that makes) of packing into what weigh up, this moment, stirring wing was arranged in material, open motor and speed is arranged on 10r/min or 20r/min shelves, rotating disc drives the barrel rotation, vertical shaft does not change with stirring wing but vertical shaft links to each other with load transducer, and accurately the big I of rotating speed and stirring moment of torsion is by instrument and computing machine output.Treat to note reading after the sensor stable reading, then rotating speed is increased to successively step by step 20,30,40,50r/min, write down stable reading respectively, thereby obtain moment of torsion-rotation speed relation curve of speed ascent stage corresponding to every grade of rotating speed.
By same quadrat method, rotating speed is reduced successively by 50r/min, write down stable reading respectively corresponding to every grade of rotating speed, can obtain the moment of torsion-rotation speed relation curve of rotating speed descending branch again.
For the drum type brake stirring wing, can be directly draw concrete rheological parameter τ 0 and η according to the moment of torsion-rotation speed relation curve of rotating speed descending branch. For polystyle and vane type stirring wing, can pass through following transform
Calculate concrete rheological parameter τ
0And η.α and β are the proportionality constants of instrument in the formula, and a and b are the characteristic parameters of the moment of torsion-rotation speed relation curve of rotating speed descending branch.
Claims (2)
1. concrete rheological instrument, this instrument is made up of framework, motor, barrel, stirring wing, torque sensor, measuring instrument and computing machine, framework constitutes by horizontal base and two hollow columns that are attached thereto and along the horizontal upper bracket of column lifting, it is characterized in that: the base top is provided with the rotating disk that is driven by change speed motor, rotating disk links to each other with barrel, and axle and the torque sensor and the instrument of stirring wing is installed in the horizontal upper bracket.
2. concrete rheological instrument according to claim 1 is characterized in that: stirring wing be shaped as drum type brake, polystyle and vane type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257091 CN2569143Y (en) | 2002-09-24 | 2002-09-24 | Concrete rheometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02257091 CN2569143Y (en) | 2002-09-24 | 2002-09-24 | Concrete rheometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2569143Y true CN2569143Y (en) | 2003-08-27 |
Family
ID=33725156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02257091 Expired - Fee Related CN2569143Y (en) | 2002-09-24 | 2002-09-24 | Concrete rheometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2569143Y (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063652B (en) * | 2006-04-29 | 2010-09-29 | 赵文成 | Mass-flow instrument |
| CN102590038A (en) * | 2012-01-31 | 2012-07-18 | 哈尔滨工业大学 | Device for measuring rheological parameters of fresh concrete |
| CN103616315A (en) * | 2013-12-05 | 2014-03-05 | 三一汽车制造有限公司 | Lifting-pulling type rheometer and concrete pumping equipment type selection method |
| CZ304920B6 (en) * | 2013-08-28 | 2015-01-21 | Vysoké Učení Technické V Brně | Assembly of homogenization multispeed interval rotator for hydrated cement materials |
| CN107703284A (en) * | 2017-08-09 | 2018-02-16 | 陕西省兴平市西北工程机械制造有限公司 | A kind of affined concrete collapses the measurement apparatus and method of stream parameter |
| CN108225939A (en) * | 2018-01-12 | 2018-06-29 | 上海建工集团股份有限公司 | Measure the device and method of fresh concrete yield stress |
| CN108333334A (en) * | 2018-01-12 | 2018-07-27 | 上海建工集团股份有限公司 | A kind of device and method measuring concrete pumping pressure and discharge relation |
| CN108369219A (en) * | 2015-12-09 | 2018-08-03 | 建筑研究和技术有限公司 | Determine the device and method of the rheological behavior of concrete |
| CN108680732A (en) * | 2018-05-18 | 2018-10-19 | 上海建工集团股份有限公司 | Measure the apparatus and method of flowing concrete pumpability |
| CN108818934A (en) * | 2018-03-15 | 2018-11-16 | 厦门理工学院 | A kind of ultra-high performance concrete blender of measurable flow variable element |
| CN110389085A (en) * | 2018-04-16 | 2019-10-29 | 天津市港源试验仪器厂 | A kind of concrete rheometer |
| CN112903536A (en) * | 2021-05-10 | 2021-06-04 | 江西科技学院 | Device for monitoring rheological property of mortar |
| CN114199723A (en) * | 2021-12-21 | 2022-03-18 | 哈尔滨工业大学 | Rheological property testing device under vibration action of fresh concrete and using method thereof |
| CN114888962A (en) * | 2022-05-16 | 2022-08-12 | 长安大学 | Vertical shaft stirring device based on material rheological property test |
| CN115091619A (en) * | 2022-02-23 | 2022-09-23 | 上海建工集团股份有限公司 | Device and method for determining mixing system of ultra-high performance concrete |
-
2002
- 2002-09-24 CN CN 02257091 patent/CN2569143Y/en not_active Expired - Fee Related
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101063652B (en) * | 2006-04-29 | 2010-09-29 | 赵文成 | Mass-flow instrument |
| CN102590038A (en) * | 2012-01-31 | 2012-07-18 | 哈尔滨工业大学 | Device for measuring rheological parameters of fresh concrete |
| CN102590038B (en) * | 2012-01-31 | 2013-10-23 | 哈尔滨工业大学 | Device for measuring rheological parameters of fresh concrete |
| CZ304920B6 (en) * | 2013-08-28 | 2015-01-21 | Vysoké Učení Technické V Brně | Assembly of homogenization multispeed interval rotator for hydrated cement materials |
| CN103616315A (en) * | 2013-12-05 | 2014-03-05 | 三一汽车制造有限公司 | Lifting-pulling type rheometer and concrete pumping equipment type selection method |
| CN103616315B (en) * | 2013-12-05 | 2016-08-31 | 三一汽车制造有限公司 | Pull-type flow graph and concrete pumping equipment selection method |
| CN108369219A (en) * | 2015-12-09 | 2018-08-03 | 建筑研究和技术有限公司 | Determine the device and method of the rheological behavior of concrete |
| CN107703284A (en) * | 2017-08-09 | 2018-02-16 | 陕西省兴平市西北工程机械制造有限公司 | A kind of affined concrete collapses the measurement apparatus and method of stream parameter |
| CN108225939A (en) * | 2018-01-12 | 2018-06-29 | 上海建工集团股份有限公司 | Measure the device and method of fresh concrete yield stress |
| CN108333334A (en) * | 2018-01-12 | 2018-07-27 | 上海建工集团股份有限公司 | A kind of device and method measuring concrete pumping pressure and discharge relation |
| CN108225939B (en) * | 2018-01-12 | 2020-09-04 | 上海建工集团股份有限公司 | Device and method for measuring yield stress of fresh concrete |
| CN108333334B (en) * | 2018-01-12 | 2020-03-13 | 上海建工集团股份有限公司 | Device and method for measuring relation between concrete pumping pressure and flow |
| CN108818934A (en) * | 2018-03-15 | 2018-11-16 | 厦门理工学院 | A kind of ultra-high performance concrete blender of measurable flow variable element |
| CN110389085A (en) * | 2018-04-16 | 2019-10-29 | 天津市港源试验仪器厂 | A kind of concrete rheometer |
| CN108680732A (en) * | 2018-05-18 | 2018-10-19 | 上海建工集团股份有限公司 | Measure the apparatus and method of flowing concrete pumpability |
| CN112903536A (en) * | 2021-05-10 | 2021-06-04 | 江西科技学院 | Device for monitoring rheological property of mortar |
| CN114199723A (en) * | 2021-12-21 | 2022-03-18 | 哈尔滨工业大学 | Rheological property testing device under vibration action of fresh concrete and using method thereof |
| CN114199723B (en) * | 2021-12-21 | 2023-11-17 | 哈尔滨工业大学 | Rheological property testing device under vibration action of fresh concrete and application method thereof |
| CN115091619A (en) * | 2022-02-23 | 2022-09-23 | 上海建工集团股份有限公司 | Device and method for determining mixing system of ultra-high performance concrete |
| CN115091619B (en) * | 2022-02-23 | 2023-08-11 | 上海建工集团股份有限公司 | Ultra-high performance concrete stirring system determining device and method |
| CN114888962A (en) * | 2022-05-16 | 2022-08-12 | 长安大学 | Vertical shaft stirring device based on material rheological property test |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |