CN204101388U - A kind of asphalt torsional shear test device - Google Patents
A kind of asphalt torsional shear test device Download PDFInfo
- Publication number
- CN204101388U CN204101388U CN201420383727.8U CN201420383727U CN204101388U CN 204101388 U CN204101388 U CN 204101388U CN 201420383727 U CN201420383727 U CN 201420383727U CN 204101388 U CN204101388 U CN 204101388U
- Authority
- CN
- China
- Prior art keywords
- asphalt
- test
- shear
- test device
- rotating disk
- 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 - Fee Related
Links
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a kind of asphalt torsional shear test device, adopt torsional shear mode to measure shearing strength and the shear fatigue life-span of asphalt, this test unit comprises test platform, microcomputer controlled electronic universal tester.Vertical power is changed into moment of torsion by rack and pinion by the utility model, and (moment of torsion acted on round section test specimen only can produce pure shear distortion, asphalt is made to be in the Simple stress condition of pure shear, the accuracy of test figure can be improved in theory), right cylinder bitumen mixture specimen is destroyed, analyze shearing strength and shear fatigue life-span that data can obtain asphalt, thus evaluate the shear behavior of asphalt.
Description
Technical field
The invention belongs to asphalt mechanical property test field, particularly relate to a kind of asphalt torsional shear test device.
Background technology
About investigation and research show, under the condition that temperature is higher, the shear resistance of asphalt is not enough to the repeated action resisting wheel load, makes bituminous concrete produce plasticity detrusion, and is extruded to both sides gradually, thus produce rut; In the design process of bituminous pavement, do not consider the shear behavior of asphalt.So the shear behavior of Research on Asphalt Mixture, all has a very big significance the performance evaluation of asphalt and the design of bituminous pavement.
There are some weak parts in current domestic shearing property testing device: under in process of the test, test specimen is generally in complex stress active state, and then generation shear failure, although complex stress condition is closer to road surface actual working state, but on failure mechanics there is uneven, asymmetric and inharmonic phenomenon in shearing stress distribution, and this will produce certain influence to test accuracy.
Utility model content
The present situation of weak part is there is for current domestic shearing property testing device, take bituminous pavement Stress Field Distribution and environmental effects into consideration, the test of exploitation shearing test method, the present invention can carry out shear test to different asphalt mixture materials in different environmental baselines (temperature, loading frequency).Apply the moment reversed by test unit to test specimen, such test specimen is subject to pure shearing, more can simulate the stress state on actual road surface, and is easy to analyze, and meets the sample of many specifications.
The technical scheme that the utility model adopts is achieved by a kind of asphalt torsional shear test device, can complete asphalt torsion shear test and shear fatigue test.A kind of asphalt torsional shear test device comprises microcomputer controlled electronic universal tester and test platform.Wherein microcomputer controlled electronic universal tester is known device.
Wherein test platform comprises test board (7), joint (1), tooth bar (2), gear (3), two rotating disks (4), fixed glides (6) and slide plate bases (5).Rack and pinion is engaged mutually, and tooth bar is connected with joint, connects universal testing machine by joint.A rotating disk is connected with gear, and another rotating disk is fixed in fixed glides.Fixed glides is slided on slide plate base.Slide plate base and rotating disk are screwed on test board.Test specimen (8) is clipped between two rotating disks.Slide plate base (5) has the twice 60mm and parallel groove that fixed glides (6) can be allowed to slide, shaft collar can slide in groove; Test board is screwed in universal testing machine.Shear test Performance Detection can be carried out to the bitumen mixture specimen that specification is diameter 100mm ~ 150mm height 95mm ~ 155mm.
When to bitumen mixture specimen twisting test Performance Detection, after two, left and right rotating disk is bonded in bitumen mixture specimen, inserts in the turning axle of test test stand, insert tooth bar, and rotate test specimen, check the engagement of rack-and-pinion.Move down testing machine elevating lever, make nipple orifice with to the nipple orifice alignment on elevating lever, insert latch.Fixed glides is pushed into left in the hole of rotating disk, checks four, the bottom screw locking of fixed glides after putting in place.One end of test specimen is fixed, and does not rotate; The other end is rotatable, applies moment of torsion, test specimen is destroyed, obtains data.
The vertical force that universal testing machine is provided by tooth bar (2) and gear (3) by this device changes into moment of torsion.(moment of torsion acted on round section test specimen only can produce pure shear distortion, asphalt is made to be in the Simple stress condition of pure shear, the accuracy of test figure can be improved in theory), right cylinder bitumen mixture specimen is destroyed, analyze shearing strength and shear fatigue life-span that data can obtain asphalt, thus evaluate the shear behavior of asphalt.
Rotating disk can freely be dismantled, can according to the size of bitumen mixture specimen and height, adjustment rotating disk size and fixed glides distance.Process of the test is simple, is easy to operation.
Accompanying drawing explanation
Fig. 1 is elevation drawing of the present invention.
Fig. 2 is vertical view of the present invention.
Fig. 3 is outboard profile of the present invention.
1-joint 2-tooth bar 3-gear 4-rotating disk 5-slide plate base 6-fixed glides 7-test board 8-test specimen in Fig. 1.
Embodiment
A kind of asphalt torsional shear test device comprises microcomputer controlled electronic universal tester and test platform.Wherein universal testing machine comprises frame, constant temperature oven, base, elevating lever, control device, power system.Wherein test platform comprises test board, joint, tooth bar, gear, rotating disk, fixed glides and slide plate base.Rack and pinion is engaged mutually, and tooth bar is connected with joint, connects universal testing machine by joint.A rotating disk is connected with gear, and another rotating disk is fixed in fixed glides.After two, left and right rotating disk is bonded in bitumen mixture specimen, inserts in the turning axle of test test stand, insert tooth bar, and rotate test specimen, check the engagement of rack-and-pinion.Move down testing machine elevating lever, make nipple orifice with to the nipple orifice alignment on elevating lever, insert latch.Fixed glides is pushed into left in the hole of rotating disk, checks four, the bottom screw locking of fixed glides after putting in place.One end of test specimen is fixed, and does not rotate; The other end is rotatable, applies moment of torsion, test specimen is destroyed, obtains data.
Claims (4)
1. an asphalt torsional shear test device, it is characterized in that: a kind of asphalt torsional shear test device comprises microcomputer controlled electronic universal tester and test platform, asphalt torsion shear test and shear fatigue test can be completed, test platform comprises test board (7), joint (1), tooth bar (2), gear (3), two rotating disks (4), fixed glides (6) and slide plate base (5), rack and pinion is engaged mutually, tooth bar is connected with joint, universal testing machine is connected by joint, a rotating disk is connected with gear, another rotating disk is fixed in fixed glides, fixed glides is slided on slide plate base, slide plate base and rotating disk are screwed on test board, test specimen (8) is clipped between two rotating disks.
2. asphalt torsional shear test device according to claim 1, is characterized in that: described rotating disk (4) diameter is 100mm ~ 150mm.
3. asphalt torsional shear test device according to claim 1, is characterized in that: described slide plate base (5) has the twice 60mm and parallel groove that fixed glides can be allowed to slide.
4. asphalt torsional shear test device according to claim 1, is characterized in that: the vertical force that universal testing machine provides by described tooth bar (2) and gear (3) changes into moment of torsion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420383727.8U CN204101388U (en) | 2014-07-12 | 2014-07-12 | A kind of asphalt torsional shear test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420383727.8U CN204101388U (en) | 2014-07-12 | 2014-07-12 | A kind of asphalt torsional shear test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204101388U true CN204101388U (en) | 2015-01-14 |
Family
ID=52269807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420383727.8U Expired - Fee Related CN204101388U (en) | 2014-07-12 | 2014-07-12 | A kind of asphalt torsional shear test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204101388U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913984A (en) * | 2015-05-28 | 2015-09-16 | 福建工程学院 | Pavement material double-layer cylinder specimen compression and torsion combination fatigue test method and device |
| CN105424504A (en) * | 2015-11-04 | 2016-03-23 | 长沙理工大学 | Asphalt mixture torsion shear test device capable of applying normal stress |
| CN105445119A (en) * | 2015-11-13 | 2016-03-30 | 长安大学 | Device and method for testing torsion resistance and shear performance of bituminous mixture |
| WO2017179770A1 (en) * | 2016-04-12 | 2017-10-19 | 성균관대학교 산학협력단 | Torsion testing apparatus |
| CN109870370A (en) * | 2019-03-05 | 2019-06-11 | 三峡大学 | Sample devices are cut in a kind of torsion of multifunctional in-situ Rock And Soil |
| CN110082226A (en) * | 2019-04-03 | 2019-08-02 | 西北工业大学 | Crane torsion test device |
| CN114002085A (en) * | 2021-08-10 | 2022-02-01 | 北京工业大学 | Dot matrix material shearing performance test fixture |
-
2014
- 2014-07-12 CN CN201420383727.8U patent/CN204101388U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913984A (en) * | 2015-05-28 | 2015-09-16 | 福建工程学院 | Pavement material double-layer cylinder specimen compression and torsion combination fatigue test method and device |
| CN105424504A (en) * | 2015-11-04 | 2016-03-23 | 长沙理工大学 | Asphalt mixture torsion shear test device capable of applying normal stress |
| CN105445119A (en) * | 2015-11-13 | 2016-03-30 | 长安大学 | Device and method for testing torsion resistance and shear performance of bituminous mixture |
| CN105445119B (en) * | 2015-11-13 | 2018-01-12 | 长安大学 | A kind of test device and method of asphalt anti-torsion and cutting performance |
| WO2017179770A1 (en) * | 2016-04-12 | 2017-10-19 | 성균관대학교 산학협력단 | Torsion testing apparatus |
| CN109870370A (en) * | 2019-03-05 | 2019-06-11 | 三峡大学 | Sample devices are cut in a kind of torsion of multifunctional in-situ Rock And Soil |
| CN110082226A (en) * | 2019-04-03 | 2019-08-02 | 西北工业大学 | Crane torsion test device |
| CN114002085A (en) * | 2021-08-10 | 2022-02-01 | 北京工业大学 | Dot matrix material shearing performance test fixture |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204101388U (en) | A kind of asphalt torsional shear test device | |
| Zhang et al. | Using DSR and MSCR tests to characterize high temperature performance of different rubber modified asphalt | |
| Zelelew et al. | Laboratory evaluation of the mechanical properties of plant-produced warm-mix asphalt mixtures | |
| CN103245571B (en) | Rotary shear failure performance determination test device of asphalt mixture | |
| CN103743631A (en) | Torsional shear test method for asphalt mixture | |
| CN103245542B (en) | Test method of compound cracking of asphalt mixture | |
| CN105136587A (en) | Bituminous mixture rutting test device | |
| CN202066761U (en) | Torsion shear test device used for bituminous pavement materials and structure | |
| CN102297812A (en) | Torsional shear test device for asphalt pavement material and structure | |
| CN102879272B (en) | Method for evaluating damage self-healing capacity of asphalt mortar | |
| CN105241761A (en) | Method for evaluating bonding strength and durability between layers of asphalt road | |
| CN204514733U (en) | A kind of bituminous pavement right cylinder test specimen interlayer pressurization boxshear apparatus | |
| CN101788431A (en) | Device and method for testing shear performance of asphalt mixture | |
| CN104913984A (en) | Pavement material double-layer cylinder specimen compression and torsion combination fatigue test method and device | |
| CN105445119A (en) | Device and method for testing torsion resistance and shear performance of bituminous mixture | |
| CN204988883U (en) | Bituminous mixture wheel tracking test device | |
| CN102494962B (en) | Circulating single shaft dynamic load testing device with function of simulating tire load | |
| CN107219131B (en) | A kind of asphalt horizontal shear performance test apparatus and method considering local axial compressive force | |
| CN104819895A (en) | Asphalt mixed material tensile dynamic modulus test device | |
| CN104316416A (en) | Semicircle loading direct shear test device and method for bituminous mixture | |
| CN103674696A (en) | Multi-angle large-deformation shear test fixture of structure stress absorption layer of pavement | |
| CN105181529A (en) | Method for measuring viscoelasticity of gel particles | |
| Qiu et al. | Fatigue evolution characteristic and self-healing behaviour of asphalt binders | |
| CN102519812A (en) | Method for evaluating high-temperature stability of asphalt pavement structure or asphalt mixture | |
| CN203519527U (en) | Temperature field and heat conductivity coefficient tester applicable to multilayer pavement structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150114 Termination date: 20150712 |
|
| EXPY | Termination of patent right or utility model |