CN203720175U - Concrete rheometer - Google Patents
Concrete rheometer Download PDFInfo
- Publication number
- CN203720175U CN203720175U CN201420091041.1U CN201420091041U CN203720175U CN 203720175 U CN203720175 U CN 203720175U CN 201420091041 U CN201420091041 U CN 201420091041U CN 203720175 U CN203720175 U CN 203720175U
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- CN
- China
- Prior art keywords
- concrete
- container
- pole
- sensor
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012360 testing method Methods 0.000 claims abstract description 30
- 238000010276 construction Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 3
- 238000012544 monitoring process Methods 0.000 abstract 1
- 241001269238 Data Species 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000518 rheometry Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a device for testing a rheological property of fresh mixed concrete. A concrete rheometer is characterized by comprising a container, a supporting rod, a horizontal rod, a motor, a transmission device, a sensor, a resistance part and a testing rod, wherein the container is placed horizontally; the supporting rod is vertically fixed on the center of the container; the motor and the sensor are fixed on the upper part of the supporting rod; an output shaft of the motor is connected with the transmission device; the horizontal rod is perpendicular to the supporting rod; a shaft hole on the horizontal rod sleeves the supporting rod; the horizontal rod is connected with the transmission device; the testing rod is vertically fixed on the horizontal rod; the testing rod is provided with the resistance part adjustable in height. According to the concrete rheometer, three parameters including the plastic viscosity, the yield stress and the uniformity of the fresh mixed concrete can be measured; the concrete rheometer is simple in structure and convenient to operate and has stable and reliable data; the concrete rheometer is suitable for testing the rheological property of the fresh mixed concrete in a laboratory and can also be used for monitoring the quality of concrete of construction sites.
Description
Technical field
The utility model relates to a kind of for testing fresh concrete rheological property device, especially relates to a kind of device of testing concrete yield stress, plastic viscosity and homogeneity.
Background technology
For accurate test calibration rheological property of concrete, except traditional slump cone method of testing, need comprehensive yield stress, plastic viscosity and these parameters of homogeneity, characterize rheological property of concrete.The device that Present Domestic is tested concrete plastic viscosity outward mainly contains turning circle cartridge type viscosity meter, the devices such as blade viscosity apparatus, it only detects yield stress, plastic viscosity, evenly yield stress and plastic viscosity are tested to the deviation causing to the not good concrete of property and ignored, concrete viscometer also exists expensive at present simultaneously, operation inconvenience, the problem that test result discreteness is large.
Summary of the invention
The purpose of this utility model is to provide a kind of concrete rheometer that detects concrete flow variable element.
For achieving the above object, the utility model adopts following technical scheme as follows: concrete rheometer, is characterized in that it comprises container, pole, horizon bar, motor, gearing, sensor, resistance piece, reference test bar; Vessel level is placed, and pole is vertically fixed on the center of container, and motor and sensor are fixed on the top of pole, and the output shaft of motor is connected with gearing; Horizon bar is perpendicular to pole, and the axis hole on horizon bar is inserted in pole above, and horizon bar is connected with gearing, and reference test bar is vertically fixedly connected on horizon bar, has height-adjustable resistance piece on reference test bar.
Described sensor is the one in torque sensor, force sensor, power detector, current detector.
The size height of described resistance piece is not less than 31.5mm; Be shaped as the one in column type, ball type, leaf oar formula, tapered, v form.
Described container is the one in bulge, toroidal container.
The bottom of described reference test bar should be not less than 31.5mm apart from concrete base minimum distance.
Fixing bearing in described axis hole, bearing is fixed on pole.
In the time that reference test bar does shearing motion, under different rotating speeds, detect, can characterize concrete plastic viscosity; With the detection of different resistance pieces position under rotating speed, can characterize concrete homogeneous performance.
The utility model beneficial effect is: solves existing concrete flow graph and can not test homogeneity of concrete, cannot comprehensive characterization rheological property of concrete, and the larger problem of test data discreteness; The utility model can be measured fresh concrete plastic viscosity, yield stress and three parameters of homogeneity; Concrete rheometer simple in structure, easy to operate, data stabilization is reliable, is applicable to laboratory fresh concrete rheology testing, can monitor again concrete on construction site quality.
Brief description of the drawings
Fig. 1 is the structural representation of utility model.
Fig. 2 is the front view [section is inside equipped with concrete (in figure, point represents concrete)] of bulge.
Fig. 3 is the vertical view of bulge.
Fig. 4 is the front view [section is inside equipped with concrete (in figure, point represents concrete)] of toroidal container.
Fig. 5 is the vertical view of toroidal container.
Description of symbols in figure: 1-container, 2-pole, 3-horizon bar, 4-motor, 5-gearing, 6-sensor, 7-resistance piece, 8-reference test bar, 9-axis hole.
Embodiment
Below in conjunction with Figure of description, the utility model is described further:
Refer to Fig. 1-5, concrete rheometer, it comprises container 1, pole 2, horizon bar 3, motor 4, gearing 5, sensor 6, resistance piece 7, reference test bar 8; Container 1 horizontal positioned, pole 2 is vertically fixed on the center of container 1, and motor 4 and sensor 6 are fixed on the top of pole 2, and the output shaft of motor 4 is connected with gearing 5; Horizon bar 3 is perpendicular to pole 2, it (is that horizon bar 3 can rotate around pole 2 that axis hole 9 on horizon bar 3 is inserted on pole 2, also can adopt: the interior fixing bearing of axis hole 9, bearing is fixed on pole 2), horizon bar 3 is connected and (moves in a circle as the center of circle taking pole 2 with gearing 5, gearing 5 can be contiguous block), reference test bar 8 is vertically fixedly connected on horizon bar 3, has height-adjustable resistance piece 7 on reference test bar 8.
Described sensor is the one in torque sensor, force sensor, power detector, current detector.
Described resistance piece is Height Adjustable on reference test bar, and resistance piece size height is not less than 31.5mm; Be shaped as the one in column type, ball type, leaf oar formula, tapered, v form.
Described container is the one in bulge, toroidal container.
Described container inner concrete packed height should be not less than 130mm.
The bottom of described reference test bar 8 should be not less than 31.5mm apart from concrete base minimum distance.
Measure fresh concrete plastic viscosity, comprise the steps:
1) prepare concrete rheometer (as mentioned above), and definite resistance piece shape and resistance piece height;
2) concrete newly mixing is poured in container, packed height is to 130mm place, open motor, driven by motor gearing, horizon bar and reference test bar do circumference rotation taking pole as the center of circle, in the process that rotates a circle, collect altogether at least 4 symmetric points sensing datas, and record, then collect and be no less than 4 sensor values under different rotating speeds successively;
3) thus obtain many group different rotating speeds-sensor relation curves, and convert and obtain concrete plastic viscosity and yield value of stress by formula.
While measuring fresh concrete homogeneity, comprise the steps:
1) prepare concrete rheometer (as mentioned above), and definite resistance piece shape;
2) concrete newly mixing is poured in container, packed height is to 130mm place, resistance piece is placed in to reference test bar lowermost end, opens motor, driven by motor gearing, horizon bar and reference test bar do circumference rotation taking pole as the center of circle, in the process that rotates a circle, collect altogether at least 4 symmetric points sensing datas, and record, fixing after then resistance piece being moved up, under same rotating speed, in the process that rotates a circle, collect altogether at least 4 symmetric points sensing datas;
Contrast two groups of rotating speed-sensor relation curves, and weigh homogeneous performance by analyzing data difference.
Claims (6)
1. concrete rheometer, is characterized in that it comprises container (1), pole (2), horizon bar (3), motor (4), gearing (5), sensor (6), resistance piece (7), reference test bar (8); Container (1) horizontal positioned, pole (2) is vertically fixed on the center of container (1), and motor (4) and sensor (6) are fixed on the top of pole (2), and the output shaft of motor (4) is connected with gearing (5); Horizon bar (3) is perpendicular to pole (2), axis hole on horizon bar (3) is inserted on pole (2), horizon bar (3) is connected with gearing (5), and reference test bar (8) is vertically fixedly connected on horizon bar (3), has height-adjustable resistance piece (7) on reference test bar (8).
2. concrete rheometer according to claim 1, is characterized in that: described sensor is the one in torque sensor, force sensor, power detector, current detector.
3. concrete rheometer according to claim 1, is characterized in that: the size height of described resistance piece is not less than 31.5mm; Be shaped as the one in column type, ball type, leaf oar formula, tapered, v form.
4. concrete rheometer according to claim 1, is characterized in that: described container is the one in bulge, toroidal container.
5. concrete rheometer according to claim 1, is characterized in that: the bottom of described reference test bar should be not less than 31.5mm apart from concrete base minimum distance.
6. concrete rheometer according to claim 1, is characterized in that: fixing bearing in described axis hole, bearing is fixed on pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420091041.1U CN203720175U (en) | 2014-02-28 | 2014-02-28 | Concrete rheometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420091041.1U CN203720175U (en) | 2014-02-28 | 2014-02-28 | Concrete rheometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203720175U true CN203720175U (en) | 2014-07-16 |
Family
ID=51159315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420091041.1U Expired - Lifetime CN203720175U (en) | 2014-02-28 | 2014-02-28 | Concrete rheometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203720175U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018178A (en) * | 2016-08-09 | 2016-10-12 | 郭颂怡 | Concrete rheometer |
| CN108007764A (en) * | 2017-12-29 | 2018-05-08 | 上海岩土工程勘察设计研究院有限公司 | Lower embedding type concrete component intensity Indirect testing devices and methods therefor |
| CN108956381A (en) * | 2018-08-01 | 2018-12-07 | 中南大学 | A kind of concrete dynamic and static rheological performance test methods |
| CN114166691A (en) * | 2021-11-30 | 2022-03-11 | 中建西部建设湖南有限公司 | Method and device for testing rheological property of cementing material |
| 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 |
-
2014
- 2014-02-28 CN CN201420091041.1U patent/CN203720175U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018178A (en) * | 2016-08-09 | 2016-10-12 | 郭颂怡 | Concrete rheometer |
| CN108007764A (en) * | 2017-12-29 | 2018-05-08 | 上海岩土工程勘察设计研究院有限公司 | Lower embedding type concrete component intensity Indirect testing devices and methods therefor |
| CN108007764B (en) * | 2017-12-29 | 2023-12-29 | 上海勘察设计研究院(集团)股份有限公司 | Non-excavation detection device and method for strength of buried concrete member |
| CN108956381A (en) * | 2018-08-01 | 2018-12-07 | 中南大学 | A kind of concrete dynamic and static rheological performance test methods |
| CN114166691A (en) * | 2021-11-30 | 2022-03-11 | 中建西部建设湖南有限公司 | Method and device for testing rheological property of cementing material |
| CN114166691B (en) * | 2021-11-30 | 2023-07-14 | 中建西部建设湖南有限公司 | Method and device for testing rheological property of cementing material |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140716 |