CN206832716U - A kind of linear contraction coefficient of asphalt mixture test device - Google Patents
A kind of linear contraction coefficient of asphalt mixture test device Download PDFInfo
- Publication number
- CN206832716U CN206832716U CN201720696224.XU CN201720696224U CN206832716U CN 206832716 U CN206832716 U CN 206832716U CN 201720696224 U CN201720696224 U CN 201720696224U CN 206832716 U CN206832716 U CN 206832716U
- Authority
- CN
- China
- Prior art keywords
- accuracy
- water tank
- asphalt mixture
- temperature
- shaped support
- 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.)
- Active
Links
Landscapes
- Road Paving Machines (AREA)
Abstract
The utility model discloses a kind of linear contraction coefficient of asphalt mixture test device, and it includes that the high-accuracy and constant warm water tank of temperature can be adjusted（6）, in high-accuracy and constant warm water tank（6）It is interior to be provided with H-shaped support, in the riser of H-shaped support（1）It is provided with ultrasonic signal emission device（3）, in the transverse slat of H-shaped support（2）On be placed with both ends and be connected with ultrasonic wave receiver board（5）Bitumen mixture specimen（4）.The utility model according to《Highway engineering pitch and Asphalt Mixture Experiment code》（JTG E20—2011）Testing requirements specified in T 0,720 1993 devise the present apparatus, it is the influence for the accurate testing degree for solving temperature, whole test equipment and process have been placed in the high-accuracy and constant warm water tank that can adjust temperature, its test make use of infrared ultrasonic ranging principle, can thus improve measuring accuracy and testing efficiency.
Description
Technical field
It the utility model is related to the testing inspection field of asphalt, particularly a kind of linear contraction coefficient of asphalt mixture
Test device.
Background technology
With the development of domestic communication cause, bituminous paving has turned into the main road surface types of high-grade highway, and it makes
Various problems are inevitably produced during, crack is that the typical disease of domestic bituminous paving, the especially temperature difference are larger
Area.The cracking of bituminous paving is relevant with many factors, and wherein linear contraction coefficient of asphalt mixture is opened to influence bituminous paving
The main internal cause split, the linear contractive quotiety of asphalt is the essential ginseng of bituminous paving temperature Stress calculation in addition
Number.Therefore, domestic and foreign scholars have carried out numerous studies to the linear contractive quotiety of asphalt, also develop substantial amounts of detection and set
It is standby, but existing detection device and《Highway engineering pitch and Asphalt Mixture Experiment code》（JTG E20—2011）T 0720-
Detection method has the following disadvantages specified in 1993：
（1）In test process, displacement measurement uses amesdial or slide calliper rule, need to be taken out from high/low temperature insulating box, and
It is required that rapidly determining, error in reading is often resulted in due to too worrying, or error is excessive；In addition, by room temperature after test specimen taking-up
Influence change it is especially fast, cause the error of measurement result；
（2）In existing method of testing, the both ends of test specimen need to paste metal gauge head, and the stickup of metal gauge head requires higher, if
Paste askew, measurement result will be had a strong impact on.
The content of the invention
A kind of deficiency of the utility model in order to solve the above-mentioned technical problem, there is provided linear contraction coefficient of asphalt mixture test
Device, under the premise of guarantee test result is accurate, operating process is simple, can effectively save test period, improve tester
Operating efficiency.
To solve the above problems, the utility model adopts the following technical scheme that：
Linear contraction coefficient of asphalt mixture test device, it includes that the high-accuracy and constant warm water tank of temperature can be adjusted, high-precision
H shape supports are provided with degree Water Tank with Temp.-controlled, ultrasonic signal emission device are provided with the riser of H-shaped support, in the transverse slat of H-shaped support
On be placed with the bitumen mixture specimen that both ends are connected with ultrasonic wave receiver board.
Foregoing linear contraction coefficient of asphalt mixture test device is that apertured partition, H are provided with high-accuracy and constant warm water tank
Shape support is arranged on apertured partition.
Foregoing linear contraction coefficient of asphalt mixture test device is provided with the control interface of high-accuracy and constant warm water tank
The operating key of ultrasonic signal emission device and the computing unit set according to ultrasonic ranging principle, are connected with aobvious on computing unit
Display screen.
Compared with the prior art, the utility model according to《Highway engineering pitch and Asphalt Mixture Experiment code》（JTG
E20—2011）Testing requirements specified in T 0720-1993 devise the present apparatus, and it is the accurate testing degree for solving temperature
Influence, whole test equipment and process have been placed in the high-accuracy and constant warm water tank that can adjust temperature, its test make use of red
Outer ultrasonic ripple range measurement principle, can thus improve measuring accuracy and testing efficiency, in high-accuracy and constant warm water tank be provided with it is with holes every
Plate, H-shaped support are arranged on apertured partition, and whole test sample and equipment can so be located in high-accuracy and constant warm water tank
Portion, make temperature more accurate, the range unit can be tested under water, and can change automatic amendment, measurement range according to water temperature
0.001~100mm, measurement accuracy 0.001mm, operating temperature range are -40 DEG C~+40 DEG C.In high-accuracy and constant warm water tank
The computing unit that control interface is provided with the operating key of ultrasonic signal emission device and set according to ultrasonic ranging principle, is being calculated
Display screen is connected with unit, can so make complete machine more attractive in appearance, use is more convenient, and can immediately arrive at each temperature
Lower measured value.
Brief description of the drawings
Fig. 1 is linear contraction coefficient of asphalt mixture test device schematic diagram.
Embodiment
As shown in figure 1, the high-accuracy and constant warm water tank 6 of temperature can be adjusted, can directly be bought in market, the Water Tank with Temp.-controlled is equipped with
Automatic temperature control device, temperature control accuracy are 0.1 DEG C, and rate of temperature fall accuracy is 0.5 DEG C/h.Inside dimension is 30cm（L）×20cm
（b）×15cm（h）, H shape supports are provided with high-accuracy and constant warm water tank 6, have two pieces of risers 1 and one piece of transverse slat to connect in H-shaped support
Composition is connect, ultrasonic signal emission device 3 is provided with riser 1, being placed with both ends on the transverse slat 2 of H-shaped support is connected with ultrasonic wave
The bitumen mixture specimen 4 of receiver board 5, ultrasonic wave receiver board 5 is with 502 binding agents by the termination of ultrasonic wave receiver board 5 and test specimen 4
Bond, and slightly pressure treats that its solidification cements.Ultrasonic signal emission device 3 is provided with the control interface 8 of high-accuracy and constant warm water tank 6
Operating key and according to ultrasonic ranging principle set computing unit, display screen is connected with computing unit, while counting
Initial temperature and temperature range, rate of temperature fall etc. can be write in advance by calculating unit, while computing unit can be connected with printer,
Realize the output of test parameter and data.To fully ensure that test specimen temperature even variation, band is provided with high-accuracy and constant warm water tank 6
Hole dividing plate 7, H-shaped support are arranged on apertured partition 7
Illustrate to elaborate to the utility model below in conjunction with the accompanying drawings.
The step of testing linear contraction coefficient of asphalt mixture using the utility model is as follows：
（1）Rut test piece is made using rolling legal system, 20mm*20mm*200mm prism is then cut into using stone sawing machine
Test specimen, and with the size of kind of calliper test specimen（Length, height, width）；
（2）The termination of ultrasonic wave receiver board 5 and test specimen 4 is bonded with 502 binding agents, and slightly pressure treats that its solidification is viscous
Jail；
（3）The test specimen 4 bonded is placed on the transverse slat 2 of H-shaped support, and to the high-accuracy and constant warm water that can adjust temperature
Methanol aqueous solution is injected in groove 6 as refrigerant；
（4）Open experimental rig, setting starting test temperature（+10℃）, range of temperature（+ 10~-30 DEG C）, cooling
Speed（5℃/h）Deng experimental rig sets initial trial temperature automatically（+10℃）And often cool 10 DEG C, constant temperature 30min；
（5）Test specimen is in initial trial temperature（10℃）After constant temperature 30min, ultrasonic ranging system（Ultrasonic signal emission device
3rd, ultrasonic wave receiver board 5）Test test specimen is surveyed length and recorded automatically, and the 10 DEG C of constant temperature 30min that often cool, and test test specimen surveys length
Degree.
（6）" calculating " for clicking on operation and control interface 8 calculates the linear contractive quotiety that can draw each temperature range, and can be beaten
Print.
Claims (3)
- A kind of 1. linear contraction coefficient of asphalt mixture test device, it is characterised in that：It includes that the high-accuracy and constant of temperature can be adjusted Warm water tank（6）, in high-accuracy and constant warm water tank（6）It is interior to be provided with H shape supports, in the riser of H-shaped support（1）It is provided with ultrasonic signal Transmitter（3）, in the transverse slat of H-shaped support（2）On be placed with both ends and be connected with ultrasonic wave receiver board（5）Bitumen mixture specimen （4）.
- 2. linear contraction coefficient of asphalt mixture test device according to claim 1, it is characterised in that：In High Accuracy Constant Temperature Tank（6）It is interior to be provided with apertured partition（7）, H-shaped support is arranged on apertured partition（7）On.
- 3. linear contraction coefficient of asphalt mixture test device according to claim 1 or 2, it is characterised in that：In high accuracy Water Tank with Temp.-controlled（6）Control interface（8）It is provided with ultrasonic signal emission device（3）Operating key and set according to ultrasonic ranging principle The computing unit put, is connected with display screen on computing unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720696224.XU CN206832716U (en) | 2017-06-15 | 2017-06-15 | A kind of linear contraction coefficient of asphalt mixture test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720696224.XU CN206832716U (en) | 2017-06-15 | 2017-06-15 | A kind of linear contraction coefficient of asphalt mixture test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206832716U true CN206832716U (en) | 2018-01-02 |
Family
ID=60774776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720696224.XU Active CN206832716U (en) | 2017-06-15 | 2017-06-15 | A kind of linear contraction coefficient of asphalt mixture test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206832716U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098455A (en) * | 2020-09-02 | 2020-12-18 | 兰州理工大学 | Instrument and method for testing shrinkage performance of road material |
| CN114002261A (en) * | 2021-11-29 | 2022-02-01 | 广西交科集团有限公司 | Asphalt mixture linear shrinkage coefficient measuring device and using method thereof |
-
2017
- 2017-06-15 CN CN201720696224.XU patent/CN206832716U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098455A (en) * | 2020-09-02 | 2020-12-18 | 兰州理工大学 | Instrument and method for testing shrinkage performance of road material |
| CN114002261A (en) * | 2021-11-29 | 2022-02-01 | 广西交科集团有限公司 | Asphalt mixture linear shrinkage coefficient measuring device and using method thereof |
| CN114002261B (en) * | 2021-11-29 | 2024-02-20 | 广西交科集团有限公司 | Asphalt mixture line shrinkage coefficient measuring device and using method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103245542B (en) | Test method of compound cracking of asphalt mixture | |
| CN104360042B (en) | Testing arrangement and the method for testing of the inner frost heaving amount of a kind of compacted soil | |
| CN104568694A (en) | Method for testing gas-water relative permeability of dense core | |
| CN106153862B (en) | Slurry shield model test mudcake thickness real-time determining device and assay method | |
| CN206832716U (en) | A kind of linear contraction coefficient of asphalt mixture test device | |
| CN202974813U (en) | Indoor testing device for seepage characteristics of jointed rock mass | |
| CN209368648U (en) | The test of cement stabilizing RAP mixture Base Asphalt Pavement reflection crack and evaluating apparatus | |
| CN105510203A (en) | Method for determination of sandstone oil reservoir oil-water relative permeability under different temperature gradients | |
| CN102121357A (en) | Drilling fluid return flow measuring method and measuring device thereof | |
| CN107271062A (en) | A kind of concrete form removal opportunity decision method based on maturity | |
| CN107870201A (en) | A kind of air bubble mix light-textured soil embankment lossless detection method | |
| CN107907430B (en) | Test device and test method for testing shearing performance of asphalt mixture | |
| CN103266889B (en) | The method of the rock drillability under the different drilling direction of prediction shale formation | |
| CN108827193A (en) | A kind of detection device for accurate detection template flatness | |
| CN203275158U (en) | Test device for compound cracking of asphalt mixture | |
| CN102539280A (en) | Temperature increasing and pressurizing foam cement slurry density testing device | |
| CN206037923U (en) | Concreted structure roughness measurement device | |
| CN205228337U (en) | Gutter detection device | |
| CN205138908U (en) | Novel asphaltic sands shearing test device | |
| CN206362279U (en) | A kind of pitch-road-face loosepaving thickness measuring instrument | |
| CN105486487A (en) | Wave detection system | |
| CN106225654A (en) | A kind of concrete surface roughness measuring device and measuring method thereof | |
| CN102854302A (en) | Testing device and method for real-time measurement of cracking time and crack width of concrete at early age | |
| CN105136907A (en) | Plane testing method based grouting compactness intelligent detection system and method | |
| CN108931562B (en) | Nondestructive testing method for dielectric constant of large-size uneven mixture |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |