CN103149098A - Pitch rotation shear failure experimental device - Google Patents
Pitch rotation shear failure experimental device Download PDFInfo
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- CN103149098A CN103149098A CN2013100395745A CN201310039574A CN103149098A CN 103149098 A CN103149098 A CN 103149098A CN 2013100395745 A CN2013100395745 A CN 2013100395745A CN 201310039574 A CN201310039574 A CN 201310039574A CN 103149098 A CN103149098 A CN 103149098A
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Abstract
The invention discloses a pitch rotation shear failure experimental device and belongs to the test field of material mechanics properties. The pitch rotation shear failure experimental device comprises an experimental platform, a temperature control system and a computer control system. The computer control system is capable of automatically controlling loading facilities to carrying out rotating shear loading to experimental test specimen and controlling an experimental process. The temperature control system is capable of controlling temperatures of the experiment. The pitch rotation shear failure experimental device can be suitable for determining low-temperature brittle failures and middle-high-temperature viscoplasticity failures of asphalt cements such as ordinary pitch, SBS modified asphalt, rubber asphalt and other polymer modified asphalt under different shear rates and tests of cementation interface mechanical property of materials such as bitumen mastic materials, stones, steels and plastic under the low-temperature conditions.
Description
Technical field
The invention belongs to pitch Mechanics Performance Testing field, particularly relate to the measuring technology to pitch rotational shear failure strain, failing stress index and bonding interface destructive characteristics.
Background technology
The major equipment of test bituminous cements destructive characteristics is direct tensilometer (DDT), this equipment is to be at the pitch test specimen to measure its failure strain and failing stress under direct extended state, and a lot of scholars think under the duty of actual road surface, and pitch often produces destruction because being subject to shear action.
Bituminous cements is applied shear action test the equipment of its mechanical property dynamic shear rheometer (DSR) is only arranged, this instrument is measured the complex shear modulus (G in the online viscoelasticity scope of bituminous cements under giving fixed temperature and loading frequency
*) and phasing degree (δ), for high temperature permanent deformation resistance and the warm anti-fatigue performance of estimating bituminous cements.Because the pitch failure strain has substantially exceeded line viscoelasticity scope, so DSR can't directly measure the destruction energy index of bituminous cements.
At present, the equipment that can be used for the test material twisting property has traditional machine for testing torsion (manual loading) and computer control torsion testing machine, all is mainly used in testing the larger metal material of anti-shearing modulus and nonmetallic materials twisting property at ambient temperature.Above-mentioned torsion test equipment is inapplicable for rotation (namely reversing) the shear failure performance test of bituminous cements, main cause: the mechanical property of (1) bituminous cements not only is subjected to the material impact of loading speed, also very responsive to experimental temperature, therefore, for the necessary strict controlled loading speed of the test process of bituminous cements destructive characteristics and experimental temperature; (2) anti-shearing modulus and the breakdown strength of bituminous cements are far smaller than metal material, and the torque sensor range of current material torsion testing machine is relatively excessive, cause experimental precision to be difficult to guarantee; (3) hardness due to asphalt material is less, must adopt special fixtures just can shear loading experiment; (4) be the bonding interface destructive characteristics of reflection pitch and different materials, must adopt different materials make and with the supporting special-purpose die trial of chucking appliance system.
For overcoming the above-mentioned problems in the prior art, the invention provides a kind of experimental provision and method of measuring pitch rotational shear destruction in different temperatures, different shear rate and different materials bonding interface situation (containing low-temperature brittle fracture, middle high temperature visco-plasticity destruction and low temperature interfacial failure etc.) performance index.
Summary of the invention
For measuring rotational shear failure strain and the failing stress of bituminous cements in different temperatures, shear rate and bonding interface situation, the invention provides a kind of pitch rotational shear breaking test device.This experimental provision is comprised of experiment porch, experiment test specimen, loading facility, temperature control system and computer control system.Computer control system is rotated the experiment test specimen and shears loading, and control experimentation according to the target component of setting and the automatic controlled loading facility of data message of Real-time Collection; Temperature control system is controlled experimental temperature.
Experiment porch is comprised of base steel plates, bearing spider, stationary shaft, turning axle, experiment test specimen, fixture, shaft coupling, loading facility, torque sensor and scrambler and angular displacement sensor and scrambler; Two are fixed on base steel plates in order to the bearing spider that supports stationary shaft and turning axle respectively; Stationary shaft and turning axle are positioned at same straight line, and are placed on its bearing spider; Turning axle can be movable along axis direction, is convenient to the experiment test specimen is fixed between turning axle and stationary shaft with fixture; One end of turning axle is dismountable being fixedly connected with fixture, and the other end is connected with the loading facility by shaft coupling; One end of stationary shaft is connected with the experiment test specimen by fixture, and the other end is fixedly connected with torque sensor and scrambler; Torque sensor and scrambler are fixed on base steel plates; Load the rotation of facility driven rotary axle, make the experiment test specimen that is clipped between turning axle and stationary shaft produce distortion; Angular displacement sensor and scrambler are fixed on the angular displacement that is used for measuring test specimen on turning axle.
Load facility and be comprised of frequency converter, micromachine, reducer casing and shaft coupling, micromachine and reducer casing are used in combination, and shaft coupling is used for connecting the output shaft of turning axle and reducer casing.
The experiment test specimen comprises fixture, two die trials and pitch test specimen; Die trial is all with the pitch test specimen cylinder specimen that floorage equates; With two die trials, the pitch test specimen is clipped in the middle regularly, fixture is clipped in the middle die trial and the pitch test specimen that fixes again; One end of fixture and stationary shaft be for detachably being fixedly connected with, the other end with turning axle for detachably being fixedly connected with.
Temperature control system is comprised of high low temperature experimental box, temperature-controlled pool, pitch test piece maintenance frame, sea water bath, sea water bath water inlet pipe, sea water bath rising pipe, temperature sensor, temperature scrambler and micro pump.Wherein temperature-controlled pool and pitch test piece maintenance frame are fixed in high low temperature experimental box.Sea water bath is positioned under pitch test specimen and die trial.One end of sea water bath water inlet pipe is connected with temperature-controlled pool, and the other end is fixed in above die trial and pitch test specimen by bearing spider.The two ends of sea water bath rising pipe are connected with temperature-controlled pool with sea water bath respectively.The termination of temperature sensor is placed in sea water bath.Sea water bath water inlet pipe, sea water bath rising pipe arrange micro pump at the end near experiment porch.The sea water bath water inlet pipe pumps thermostatted water by micro pump from temperature-controlled pool, and thermostatted water uninterruptedly is cast in die trial and pitch test specimen surface, and thermostatted water imports sea water bath; Simultaneously, the sea water bath rising pipe returns the water pump in sea water bath to temperature-controlled pool by micro pump.Sea water bath, temperature scrambler and micro pump all are fixed on experiment porch.
Computer control system is controlled experimentation and loading facility automatically according to the information of angular displacement sensor and scrambler, torque sensor and scrambler, temperature sensor and the collection of temperature scrambler.
Die trial is made by stone material, steel, high-temperature resistance plastice or other materials, in order to test the bonding interface destructive characteristics of bituminous cements and different materials.
Pitch rotational shear breaking test method is as follows:
1) experiment parameter setting: target temperature, the experiment termination condition (being shortest time and the minimum detection torque value of test constantly) of setting pitch test specimen parameters of basic dimensions, experiment by computer control system; The frequency of operation of frequency converter is set by computer control system, completes target constant rotational speed or the isoparametric setting of target shift speed function to micromachine.
2) test specimen is prepared and the temperature-controlling system startup: the pitch test specimen is made into the right cylinder identical with the die trial floorage, open high low temperature experimental box, pitch test specimen and die trial are placed in pitch test piece maintenance frame carry out maintenance, start micro pump the water circulation system that comprises sea water bath water inlet pipe, sea water bath rising pipe, sea water bath, temperature-controlled pool is started working.Start the data that computer control system receives temperature sensor, the collection of temperature scrambler, the beginning temperature monitoring.
3) test specimen is installed: computer control system prompting sea water bath temperature satisfies requirement of experiment, after pitch test piece maintenance temperature and curing time satisfy the regulation requirement simultaneously, pitch test specimen and die trial are taken out from pitch test piece maintenance frame, be arranged on stationary shaft and turning axle with fixture.
4) experimental phase:
Step 1: computer control system begins the automatic-prompting experiment after satisfying target experimental temperature certain hour by the temperature of temperature sensor, temperature encoders monitor sea water bath.
Step 2: computer control system drives turning axle by the constant target rotating speed rotation of setting or the rotation of target shift speed function according to the object of experiment parameter of setting by loading facility, thereby the pitch test specimen is applied shear action.
Step 3: the multidate information that computer control system Real-time Collection angle displacement transducer and scrambler, torque sensor and scrambler and temperature sensor, temperature scrambler transmit, adjust and control according to the target experiment parameter, until till the pitch test specimen destroys, reaches experiment termination condition (satisfy the shortest experimental period and minimal torque detected).
Step 4: computer control system is preserved angular displacement and the data such as time, moment and time, temperature data and time of Real-time Collection automatically, automatically calculate time dependent shearing strain and shear stress in pitch test specimen destructive process according to pitch test specimen parameters of basic dimensions (radius, thickness), the parameters such as the shearing strain of automatically definite maximum shear and correspondence, time, calculate secant shear modulus, match cropping shears shear modulu, and complete screen graph and draw.
Step 5: the pitch test specimen is taken out in the computer control system prompting and examination destroys form, and experiment finishes.
The invention has the beneficial effects as follows, experimental provision and the method for the various performance index that in a kind of different temperatures measured, different shear rate and different materials bonding interface situation, the pitch rotational shear destroys is provided.The present invention is applicable to measure low-temperature brittle fracture, the middle high temperature visco-plasticity of the bituminous cements such as plain asphalt, SBS modified bitumen, rubber asphalt and other polymer modified asphalts under different shear rate and destroys, and the various destructive characteristics indexs of the bonding interface of bituminous cements and stone material, steel, plastic or other material under cryogenic conditions.
Description of drawings
Accompanying drawing is structural representation of the present invention.
In figure: 1. computer control system, 2. torque sensor and scrambler, 3. stationary shaft, 4. temperature sensor, 5. pitch test specimen, 6. angular displacement sensor and scrambler, 7. turning axle, 8. experiment porch, 9. frequency converter, 10. loading facility, 11 bearing spiders, 12. sea water bath water inlet pipes, 13. sea water bath rising pipe, 14. fixture, 15. sea water baths, 16. reducer casinges, 17. micromachine, 18. temperature-controlled pool, 19. pitch test piece maintenance framves, 20. high low temperature experimental boxs, 21. micro pump, 22. die trial, 23. shaft couplings, 24. temperature scramblers.
Embodiment
Below in conjunction with drawings and embodiments, the present invention is described in further detail.
Pitch rotational shear breaking test device is comprised of experiment porch 8, experiment test specimen, loading facility 10, temperature control system and computer control system 1.Computer control system 1 is rotated the experiment test specimen and shears loading, and control experimentation according to the target component of setting and the automatic controlled loading facility 10 of data message of Real-time Collection; Temperature control system is controlled experimental temperature.
Load facility and be comprised of frequency converter 9, micromachine 17, reducer casing 16 and shaft coupling 23, micromachine 17 is used in combination with reducer casing 16, and shaft coupling 23 is used for connecting the output shaft of turning axle 7 and reducer casing 17.
The experiment test specimen comprises fixture 14, two die trials 22 and pitch test specimen 5; Die trial 22 is all with pitch test specimen 5 cylinder specimen that floorage equates; With two die trials 22, pitch test specimen 5 is clipped in the middle regularly, fixture 14 is clipped in the middle die trial 22 and the pitch test specimen 5 that fixes again; One end of fixture 14 and stationary shaft 3 be for detachably being fixedly connected with, the other end with turning axle 7 for detachably being fixedly connected with.
Temperature control system is comprised of high low temperature experimental box 20, temperature-controlled pool 18, pitch test piece maintenance frame 19, sea water bath 15, sea water bath water inlet pipe 12, sea water bath rising pipe 13, temperature sensor 4, temperature scrambler 24 and micro pump 21.Wherein temperature-controlled pool 18 and pitch test piece maintenance frame 19 are fixed in high low temperature experimental box 20.Sea water bath 15 is placed under pitch test specimen 5 and die trial 22 on experiment porch.One end of sea water bath water inlet pipe 12 is connected with temperature-controlled pool 18, and the other end is fixed in directly over die trial 22 and pitch test specimen 5 by bearing spider 11.Are connected with temperature-controlled pool with sea water bath 15 respectively and are connected in the two ends of sea water bath rising pipe 13.The termination of temperature sensor 4 is placed in sea water bath 15.Sea water bath water inlet pipe 12 sea water bath rising pipes 13 arrange micro pump 21 at the end near experiment porch 8.Sea water bath water inlet pipe 12 pumps thermostatted water by micro pump 21 from temperature-controlled pool 18, and thermostatted water uninterruptedly is cast in die trial 22 and pitch test specimen 5 surfaces, and thermostatted water imports sea water bath 15; Simultaneously, sea water bath rising pipe 13 returns the water pump in sea water bath 15 to temperature-controlled pool 18 by micro pump 21.Sea water bath 15, temperature scrambler 24 and micro pump 21 all are fixed on experiment porch 8.
Die trial 22 is made by stone material, steel, high-temperature resistance plastice or other materials, in order to test the bonding interface destructive characteristics of bituminous cements and different materials.
Experimental technique is as follows:
Experiment parameter arranges:
Set target temperature, the experiment termination condition (being shortest time and the minimum detection torque value of test constantly) of pitch test specimen 5 parameters of basic dimensions, experiment by computer control system 1; The frequency of operation of frequency converter 9 is set by computer control system 1, completes target constant rotational speed or the isoparametric setting of target shift speed function to micromachine 17.
Test specimen is prepared and temperature-controlling system starts:
Test specimen is installed:
Experimental phase:
Step 1: computer control system 1 begins the automatic-prompting experiment after satisfying target experimental temperature certain hour by the temperature of temperature sensor 4, temperature scrambler 24 monitoring sea water baths 15.
Step 2: computer control system 1 drives turning axle 7 by the constant target rotating speed rotation of setting or the rotation of target shift speed function according to the object of experiment parameter of setting by loading facility 10, thereby pitch test specimen 5 is applied shear action.
Step 3: the multidate information that computer control system 1 Real-time Collection angle displacement transducer and scrambler 6, torque sensor and scrambler 2 and temperature sensor 4, temperature scrambler 24 transmit, adjust and control according to the target experiment parameter, until till pitch test specimen 5 destroys, reaches experiment termination condition (satisfy the shortest experimental period and minimal torque detected).
Step 4: computer control system 1 is preserved angular displacement and the data such as time, moment and time, temperature data and time of Real-time Collection automatically, automatically calculate time dependent shearing strain and shear stress in pitch test specimen destructive process according to pitch test specimen 5 parameters of basic dimensions (radius, thickness), the parameters such as the shearing strain of automatically definite maximum shear and correspondence, time, calculate secant shear modulus, match cropping shears shear modulu, and complete screen graph and draw.
Step 5: pitch test specimen 5 is taken out in computer control system 1 prompting and examination destroys form, and experiment finishes.
Claims (6)
1. pitch rotational shear breaking test device, formed by experiment porch (8), experiment test specimen, loading facility (10), temperature control system and computer control system (1), it is characterized in that computer control system (1) is according to the target component of setting and the automatic controlled loading facility of experimental data information (10) of Real-time Collection, the experiment test specimen is rotated shears loading, and control experimentation; Temperature control system is controlled experimental temperature.
2. pitch rotational shear breaking test device according to claim 1, it is characterized in that experiment porch (8) by base steel plates, bearing spider (11), stationary shaft (3), turning axle (7), experiment test specimen, fixture (14), shaft coupling (23), load facility (10), shaft coupling (23), torque sensor and scrambler (2) and angular displacement sensor and scrambler (6) and form; Two are fixed on base steel plates in order to the bearing spider (11) that supports stationary shaft (3) and turning axle (7) respectively; Stationary shaft (3) is positioned on the same level straight line with turning axle (7), and stationary shaft (3) is placed in respectively on its bearing spider (11) separately with turning axle (7); Turning axle (7) can be movable along axis direction, is convenient to the experiment test specimen is fixed between turning axle (7) and stationary shaft (3) with fixture (14); One end of turning axle (7) is dismountable being fixedly connected with fixture, and the other end is connected with loading facility (10) by shaft coupling (23); One end of stationary shaft (3) is connected with the experiment test specimen by fixture (14), and the other end is fixedly connected with torque sensor and scrambler (2); Torque sensor and scrambler (2) are fixed on base steel plates; Load facility (10) by shaft coupling (23) driven rotary axle (7) rotation, make the experiment test specimen that is clipped between turning axle (7) and stationary shaft (3) produce distortion; It is upper for measuring the test specimen angular displacement that angular displacement sensor and scrambler (6) are fixed on turning axle (7); Loading facility is comprised of frequency converter (9), micromachine (17) and reducer casing (16), frequency converter is arranged on department of computer science and unifies between micromachine, and the order tape actuating miniature motor rotation that sends according to computing machine, micromachine (17) is used in combination with reducer casing (16), and shaft coupling (23) is used for connecting the output shaft of turning axle (7) and reducer casing (17).
3. pitch rotational shear breaking test device according to claim 2, is characterized in that testing test specimen and comprise fixture (14), two die trials (22) and pitch test specimen (5); Die trial (22) is all with pitch test specimen (5) cylinder specimen that floorage equates; With two die trials (22), pitch test specimen (5) is clipped in the middle regularly, fixture (14) is clipped in the middle die trial (22) and the pitch test specimen (5) that fixes again; One end of fixture (14) and stationary shaft (3) be for detachably being fixedly connected with, the other end with turning axle (7) for detachably being fixedly connected with.
4. pitch rotational shear breaking test device according to claim 1, is characterized in that temperature control system is comprised of high low temperature experimental box (20), temperature-controlled pool (18), pitch test piece maintenance frame (19), sea water bath (15), sea water bath water inlet pipe (12), sea water bath rising pipe (13), temperature sensor (4), temperature scrambler (24) and micro pump (21); Wherein temperature-controlled pool (18) and pitch test piece maintenance frame (19) are fixed in high low temperature experimental box (20); Sea water bath (15) is placed under pitch test specimen (5) and die trial (22) on experiment porch; One end of sea water bath water inlet pipe (12) is connected with temperature-controlled pool (18), and the other end is fixed in directly over die trial (22) and pitch test specimen (5) by bearing spider (11); The two ends of sea water bath rising pipe (13) are connected 18 with sea water bath (15) with temperature-controlled pool respectively) be connected; The termination of temperature sensor (4) is placed in sea water bath (15); Sea water bath water inlet pipe (12), sea water bath rising pipe (13) arrange micro pump (21) at the end near experiment porch (8); Sea water bath water inlet pipe (12) pumps thermostatted water by micro pump (21) from temperature-controlled pool (18), and thermostatted water uninterruptedly is cast in die trial (22) and pitch test specimen (5) surface, and thermostatted water imports sea water bath (15); Simultaneously, sea water bath rising pipe (13) returns the water pump in sea water bath (15) to temperature-controlled pool (18) by micro pump (21); Sea water bath (15), temperature scrambler (24) and micro pump (21) all are fixed on the base steel plates of experiment porch (8).
5. according to claim 3 or 4 described pitch rotational shear breaking test devices is characterized in that die trial (22) made by stone material, steel, high-temperature resistance plastice or other material, in order to test the bonding interface destructive characteristics of bituminous cements and different materials.
6. pitch rotational shear breaking test method:
1) experiment parameter setting: target temperature, the experiment termination condition (being shortest time and the minimum detection torque value of test constantly) of setting pitch test specimen (5) parameters of basic dimensions, experiment by computer control system (1); The frequency of operation of frequency converter (9) is set by computer control system (1), completes target constant rotational speed or the isoparametric setting of target shift speed function to micromachine (17);
2) test specimen is prepared and the temperature-controlling system startup: pitch test specimen (5) is made into the right cylinder identical with die trial (22) floorage, open high low temperature experimental box (20), pitch test specimen (5) and die trial (22) are placed in pitch test piece maintenance frame (19) carry out maintenance, start micro pump (21) water circulation system that comprises sea water bath water inlet pipe (12), sea water bath rising pipe (13), sea water bath (15), temperature-controlled pool (18) is started working; Start the data that computer control system (1) receives temperature sensor (4), temperature scrambler (24) collection, the beginning temperature monitoring;
3) test specimen is installed: computer control system (1) prompting sea water bath (15) temperature satisfies requirement of experiment, after pitch test specimen (5) curing temperature and curing time satisfy the regulation requirement simultaneously, pitch test specimen (5) and die trial (22) are taken out from pitch test piece maintenance frame (19), be arranged on stationary shaft (3) and turning axle (7) with fixture (14);
4) experimental phase: step 1: computer control system (1) begins the automatic-prompting experiment after satisfying target experimental temperature certain hour by the temperature of temperature sensor (4), temperature scrambler (24) monitoring sea water bath (15);
Step 2: computer control system (1) drives turning axle (7) by the constant target rotating speed rotation of setting or the rotation of target shift speed function according to the object of experiment parameter of setting by loading facility (10), thereby pitch test specimen (5) is applied shear action;
Step 3: the multidate information that computer control system (1) Real-time Collection angle displacement transducer and scrambler (6), torque sensor and scrambler (2) and temperature sensor (4), temperature scrambler (24) transmit, adjust and control according to the target experiment parameter, until till pitch test specimen (5) destroys, reaches experiment termination condition (satisfy the shortest experimental period and detect minimal torque);
Step 4: computer control system (1) is preserved angular displacement and the data such as time, moment and time, temperature data and time of Real-time Collection automatically, automatically calculate time dependent shearing strain and shear stress in pitch test specimen destructive process according to pitch test specimen (5) parameters of basic dimensions (radius, thickness), the parameters such as the shearing strain of automatically definite maximum shear and correspondence, time, calculate secant shear modulus, match cropping shears shear modulu, and complete screen graph and draw;
Step 5: pitch test specimen (5) is taken out in computer control system (1) prompting and examination destroys form, and experiment finishes.
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| CN201310039574.5A CN103149098B (en) | 2013-02-01 | 2013-02-01 | Pitch rotation shear failure experimental device |
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| CN201310039574.5A CN103149098B (en) | 2013-02-01 | 2013-02-01 | Pitch rotation shear failure experimental device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN105954119A (en) * | 2016-06-22 | 2016-09-21 | 大连理工大学 | Static three-axis torsion shearing destructive property testing device of asphalt mixture |
| CN106840920A (en) * | 2017-03-14 | 2017-06-13 | 华南理工大学 | A kind of experimental rig and method for thin-layer-asphalt pavement structure rotational shear |
| CN106840921A (en) * | 2017-01-23 | 2017-06-13 | 浙江科技学院（浙江中德科技促进中心） | The cementing area's torsional strength of sand particle nanogel and shearing strain test device and method |
| CN108507942A (en) * | 2018-06-22 | 2018-09-07 | 长安大学 | A kind of device and method of test pitch cohesive strength and adhesion strength |
| CN110186810A (en) * | 2019-07-01 | 2019-08-30 | 哈尔滨工业大学 | The non-linear rheology characteristic test method of pitch of stress substantially oscillatory shear load |
| CN112763378A (en) * | 2020-12-30 | 2021-05-07 | 西南交通大学 | Asphalt apparent viscosity testing method based on dynamic shear rheometer |
| CN115201032A (en) * | 2022-07-13 | 2022-10-18 | 哈尔滨工业大学 | Portable asphalt dynamic shear rheometer |
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| US5712431A (en) * | 1996-05-01 | 1998-01-27 | Endura-Tec Systems Corporation | Device and method for testing the shear response of a material in response to an applied force |
| CN101788431A (en) * | 2010-02-10 | 2010-07-28 | 长沙理工大学 | Device and method for testing shear performance of asphalt mixture |
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Patent Citations (2)
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| US5712431A (en) * | 1996-05-01 | 1998-01-27 | Endura-Tec Systems Corporation | Device and method for testing the shear response of a material in response to an applied force |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| CN105954119A (en) * | 2016-06-22 | 2016-09-21 | 大连理工大学 | Static three-axis torsion shearing destructive property testing device of asphalt mixture |
| CN105954119B (en) * | 2016-06-22 | 2018-08-07 | 大连理工大学 | A kind of static three axis torsional shear destructive characteristics experimental rigs of asphalt |
| CN106840921A (en) * | 2017-01-23 | 2017-06-13 | 浙江科技学院（浙江中德科技促进中心） | The cementing area's torsional strength of sand particle nanogel and shearing strain test device and method |
| CN106840921B (en) * | 2017-01-23 | 2019-04-05 | 浙江科技学院（浙江中德科技促进中心） | The cementing area's torsional strength of sand particle nanogel and shearing strain test device and method |
| CN106840920B (en) * | 2017-03-14 | 2023-12-22 | 华南理工大学 | Test device and method for rotary shearing of thin-layer asphalt pavement structure |
| CN106840920A (en) * | 2017-03-14 | 2017-06-13 | 华南理工大学 | A kind of experimental rig and method for thin-layer-asphalt pavement structure rotational shear |
| CN108507942A (en) * | 2018-06-22 | 2018-09-07 | 长安大学 | A kind of device and method of test pitch cohesive strength and adhesion strength |
| CN110186810A (en) * | 2019-07-01 | 2019-08-30 | 哈尔滨工业大学 | The non-linear rheology characteristic test method of pitch of stress substantially oscillatory shear load |
| CN112763378A (en) * | 2020-12-30 | 2021-05-07 | 西南交通大学 | Asphalt apparent viscosity testing method based on dynamic shear rheometer |
| CN115201032A (en) * | 2022-07-13 | 2022-10-18 | 哈尔滨工业大学 | Portable asphalt dynamic shear rheometer |
| CN115201032B (en) * | 2022-07-13 | 2023-10-31 | 哈尔滨工业大学 | Portable asphalt dynamic shear rheometer |
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| CN103149098B (en) | 2015-10-14 |
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