CN110411860B - Interlaminar shear test device and method for asphalt pavement structure - Google Patents
Interlaminar shear test device and method for asphalt pavement structure Download PDFInfo
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- CN110411860B CN110411860B CN201910601753.0A CN201910601753A CN110411860B CN 110411860 B CN110411860 B CN 110411860B CN 201910601753 A CN201910601753 A CN 201910601753A CN 110411860 B CN110411860 B CN 110411860B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N19/00—Investigating materials by mechanical methods
- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/32—Investigating strength properties of solid materials by application of mechanical stress by applying repeated or pulsating forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0003—Steady
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0001—Type of application of the stress
- G01N2203/0005—Repeated or cyclic
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
Abstract
The invention relates to an interlaminar shear test device and an interlaminar shear test method for an asphalt pavement structure. This shear test device between bituminous paving structural layer includes the workstation, be equipped with the slip that is used for fixed bituminous paving structural layer test piece on the workstation and bear the seat, it bears the clamp plate to slide to be equipped with directly over the seat, shear test device is still including the pressure-bearing rod that is located workstation one side, the pressure-bearing rod upper end is promoted down and is followed vertical direction motion at the press, the lower extreme of pressure-bearing rod articulates there is the connecting rod, the one end that the pressure-bearing rod was kept away from to the connecting rod is articulated with the plate of exerting pressure, the connecting rod is used for exerting horizontal load and vertical load to bituminous paving structural layer test piece when the pressure-bearing rod is down. Compared with the asphalt pavement structure interlaminar shear test device in the prior art, the asphalt pavement structure interlaminar shear test device is simple in test operation and accurate in result, can truly reflect the strength of the asphalt pavement interlaminar bonding interface, and provides an effective means for interlaminar stability research.
Description
Technical Field
The invention relates to the technical field of asphalt concrete pavement structures, in particular to an interlayer shear test device and an interlayer shear test method for an asphalt pavement structure.
Background
Asphalt pavement is gradually becoming the main form of highway in our country due to its characteristics of smooth surface, comfortable driving, low noise, wear resistance, convenient construction and maintenance, etc. The asphalt pavement is a multilayer elastic system, so the inter-layer shear strength of the asphalt pavement structure has important influence on the stability and durability of the pavement. If the shear strength between the asphalt pavement structural layers is not enough, under the repeated action of natural factors and vehicle loads, the bonding capacity between the pavement layers is reduced, slippage occurs between the layers, the capacity of the pavement for transferring the vehicle loads to the roadbed is reduced, and finally various diseases such as rutting, structural layer pushing, crowding, cracking and the like occur on the asphalt pavement. The diseases can seriously affect the driving safety and the service life of roads, increase the later maintenance cost of the asphalt pavement and cause great economic loss.
The interlayer shearing index is commonly used for evaluating the interlayer shearing performance of the asphalt pavement, and the influence of the type, the using amount, the curing time and the surface condition of the bonding layer on the interlayer shearing performance is evaluated by measuring the interlayer shearing strength. At present, a direct shear test and a single shear test are mostly adopted in a shear test, namely, a shear force is applied to a composite test piece, and the maximum shear force in unit area when the test piece obviously slips is taken as the shear strength between structural layers. The asphalt pavement is in a working state that a horizontal load and a vertical load act simultaneously under the action of a driving load, however, the method only applies the horizontal load in the shearing process, does not consider the action of the vertical load, is inconsistent with the actual stress condition of the pavement, and has a low test result.
Therefore, the chinese utility model patent with the publication number of CN203310708U discloses an interlaminar shearing device for testing viscoelasticity of an asphalt concrete pavement structure of a bridge, which comprises a first force measuring ring, a first jack, a second force measuring ring, a second jack, a bracket, a working platform, a dial indicator, a first test mold, a second test mold, a third test mold, a fourth test mold, a counter-force frame and a backing plate; the first test mould and the second test mould, and the third test mould and the fourth test mould are respectively connected together, the third test mould and the fourth test mould are fixed on the upper surface of the working platform, the bracket is fixed on the left side of the working platform, the second jack is arranged on the bracket, the bottom of the second jack is fixed on the counter-force frame, and the second force measuring ring is arranged between the second jack and the first test mould as well as between the second jack and the third test mould; the first jack is arranged on the base plate, the top end of the first jack is fixed to the top of the counter-force frame, the first force measuring ring is arranged between the first jack and the base plate, and the dial indicator is arranged on one side of the second test die and one side of the fourth test die. However, the interlaminar shearing device is mainly measured and recorded manually, the test precision is not high, the test result accuracy is low in complex conditions, and the operability is poor. Simultaneously, this interlaminar shearing mechanism's first dynamometry ring is used in the top of experimental mould, and second dynamometry ring is used in the side of experimental mould, and this just makes vertical load and horizontal load's action point different, has broken away from the condition that bituminous paving actually receives the load to can lead to the test result error to appear, the degree of accuracy reduces.
Disclosure of Invention
Aiming at the technical problem, the invention provides a test method of an interlaminar shear test device of an asphalt pavement structure; the device is used for solving the technical problems of complex structure and low test precision of the conventional asphalt pavement structure interlayer shear test device.
The invention discloses a technical scheme of an interlaminar shear test device of an asphalt pavement structure, which comprises the following steps:
the utility model provides a shear test device between bituminous paving structural layer includes the workstation, be equipped with the slip that is used for fixed bituminous paving structural layer test piece on the workstation and bear the seat, it bears the clamp plate to slide to be equipped with directly over bearing the seat, shear test device is still including the pressure-bearing rod that is located workstation one side, the pressure-bearing rod upper end is promoted down and is followed vertical direction motion at the press, the lower extreme of pressure-bearing rod articulates there is the connecting rod, the one end that the pressure-bearing rod was kept away from to the connecting rod is articulated with the board of exerting pressure, the connecting rod is used for exerting horizontal load and vertical load to bituminous paving structural layer test piece when the pressure-bearing rod is down.
The shear test device further comprises a guide rod, the axis of the guide rod extends in the vertical direction, and the bearing rod is assembled on the guide rod in a guiding mode in the vertical direction.
The shear test device further comprises a press machine, and a pressure head of the press machine is located right above the bearing rod.
The upper end of the pressure bearing rod is provided with a lower pressure plate, the lower end of the pressure head of the press machine is provided with an upper pressure plate, and the projections of the upper pressure plate and the lower pressure plate in the up-down direction are overlapped.
The shear test device is characterized in that a load sensor is arranged between a pressure head of the press machine and the upper pressure plate, the shear test device further comprises a control module, the control module comprises a processor, the processor is in control connection with the press machine and the load sensor, the processor is used for controlling the load applied by the press machine, the control module further comprises a display, and the processor is further used for receiving and processing signals from the load sensor and outputting a processing result to the display for display. And a ball plate is arranged between the workbench and the sliding bearing seat.
The invention discloses a technical scheme of an interlaminar shear test method of an asphalt pavement structure, which comprises the following steps:
the interlayer shear test method of the asphalt pavement structure comprises the following steps:
s1: manufacturing a test piece of the asphalt pavement structure layer;
s2: fixing the asphalt pavement structure layer test piece in a sliding bearing seat, starting a press machine, pushing a pressure-bearing rod to vertically move downwards by the press machine, driving a connecting rod to move obliquely downwards by the pressure-bearing rod, and applying a horizontal load and a vertical load to a pressing plate by the pressure-bearing rod;
s3: along with the horizontal sliding of the sliding bearing seat, the load collected by the load sensor is increased, when the upper layer and the lower layer of the asphalt pavement structural layer test piece obviously slide and the interlaminar shear failure occurs, the load reaches the peak value, and the peak load at the moment is recorded.
The invention has the beneficial effects that: the device and the method for testing the interlayer shear of the asphalt pavement structure can truly reflect the interlayer bonding interface strength of the asphalt pavement when a horizontal load and a vertical load simultaneously act under the action of a driving load. The action points of the horizontal load and the vertical load applied to the asphalt structure layer test piece by the asphalt pavement structure layer interlayer shear test device are the same, the true stress condition of the asphalt pavement structure layer is met, and compared with the prior art, the test result of the asphalt pavement structure interlayer shear test device is more accurate. The control module can effectively control the pressure applied to the bearing rod by the press machine, so that the cyclic load and the loading intermittence of the test piece are realized. The control module is connected with the load sensor, and output signals of the load sensor are acquired and processed and then displayed through the display. Meanwhile, the control module can effectively control the pressure applied to the bearing rod by the press machine, so that the cyclic load and loading intermittence of the test piece are realized. Compared with the asphalt pavement structure interlaminar shear test device in the prior art, the asphalt pavement structure interlaminar shear test device is simple in test operation and accurate in result, can truly reflect the strength of the asphalt pavement interlaminar bonding interface, and provides an effective means for interlaminar stability research.
Drawings
FIG. 1 is a schematic view of an interlaminar shear test apparatus for asphalt pavement structures of the present invention;
FIG. 2 is a schematic structural view of a ball plate in the interlaminar shear test apparatus for asphalt pavement structures of the present invention;
in the figure: 1-a press; 2-a pressure head; 3-a load cell; 4, an upper pressing plate; 5, pressing a lower plate; 6-bearing rod; 7-a connecting rod; 8-a guide rod; 9-fixing the rod; 10-pressing plate; 11-asphalt pavement structure layer test piece; 12-a ball plate; 13-sliding bearing seat; 14-a workbench; 15-control module.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
The first specific embodiment of the asphalt pavement structure interlaminar shear test device of the invention, as shown in fig. 1, includes a workbench 14, a sliding bearing seat 13 capable of sliding on the workbench 14 is provided on the workbench 14, and the sliding bearing seat 13 is used for fixing an asphalt pavement structure layer test piece 11. In order to reduce the friction between the slide bearing base 13 and the table 14, a ball plate 12 is provided between the slide bearing base 13 and the table 14. As shown in fig. 2, the ball plate 12 includes upper and lower plate bodies, the upper and lower plate bodies have corresponding arc-shaped through holes, and the arc-shaped through holes on the upper and lower plate bodies enclose a ball accommodating cavity, in which the balls are accommodated.
A guide rod 8 extending axially in the vertical direction is fixedly connected to one side of the table 14, and a guide groove extending in the vertical direction in length is formed in the upper end of the guide rod 8. A pressing plate 10 is arranged right above the sliding bearing seat 13, and the pressing plate 10 coincides with the projection of the asphalt pavement structure layer test piece 11 in the vertical direction, so that the pressing plate 10 can completely cover the asphalt pavement structure layer test piece 11, and the pressing plate 10 can apply force to each position of the asphalt pavement structure layer test piece 11.
The central position of the pressure applying plate 10 is hinged with a connecting rod 7, and one end of the connecting rod 7, which is far away from the pressure applying plate 10, is hinged with a pressure bearing rod 6. The bearing rod 6 is in guide fit with the guide rod 8 along the up-down direction through the fixing rod 9, specifically, the fixing rod 9 is radially connected to the upper end of the bearing rod 6, and one end, far away from the bearing rod 6, of the fixing rod 9 is inserted into the guide groove.
The upper end of the pressure-bearing rod 6 is fixedly connected with a lower pressing plate 5 through a bolt, and the lower pressing plate 5 is used for increasing the contact area between the pressure-bearing rod 6 and the pressure head 2 of the press machine 1.
In this embodiment, the interlaminar shear test device for the asphalt pavement structure further comprises a press machine 1, wherein the press machine 1 comprises a frame, and the workbench 14 is located at the center of the bottom of the frame. The frame is provided with a guide post axially extending along the vertical direction, the guide post is sleeved with a guide sleeve, the outer wall surface of the guide sleeve is connected with a support rod radially extending along the guide sleeve, and the support rod is provided with a pressure head 2. The lower end of the pressure head 2 is connected with an upper pressure plate 4 through a bolt. In this embodiment, the projections of the upper pressure plate 4 and the lower pressure plate 5 in the up-down direction are overlapped, so as to increase the stability of the pressure-bearing rod 6 in the down-moving process.
In this embodiment, the asphalt pavement structure interlaminar shear test device further comprises a control module 15, the control module 15 comprises a processor and a display in control connection with the processor, a load sensor 3 is connected between the pressure head 2 of the press machine 1 and the upper press plate 4, and the load sensor 3 is connected with the processor. The load sensor 3 is used for collecting a load signal at the position of the pressure head 2 and transmitting the load signal to the processor, and the processor receives the signal from the load sensor 3, processes the signal and simultaneously displays the processed result on the display.
The interlayer shear test device for the asphalt pavement structure can truly reflect the interlayer bonding interface strength of the asphalt pavement when a horizontal load and a vertical load simultaneously act under the action of a driving load. The control module 15 can effectively control the pressure applied to the pressure-bearing rod 6 by the press machine 1, so that the cyclic load and loading intermittence of the test piece are realized. The control module 15 is connected with the load sensor 3, and output signals of the load sensor 3 are acquired and displayed through the display after signal processing. Meanwhile, the control module 15 can effectively control the pressure applied to the bearing rod 6 by the press machine 1, so that the cyclic load and the loading intermittence of the test piece are realized. Compared with the asphalt pavement structure interlaminar shear test device in the prior art, the asphalt pavement structure interlaminar shear test device is simple in test operation and accurate in result, can truly reflect the strength of the asphalt pavement interlaminar bonding interface, and provides an effective means for interlaminar stability research.
The second specific embodiment of the asphalt pavement structure interlaminar shear test device of the invention is different from the first specific embodiment of the asphalt pavement structure interlaminar shear test device in that the asphalt pavement structure interlaminar shear test device in the second specific embodiment of the invention does not comprise a press machine, and when the asphalt pavement structure interlaminar shear test device is used, a pressure-bearing rod in the asphalt pavement structure interlaminar shear test device of the invention is arranged on the lower side of a pressure head of the press machine. The rest is the same as the first embodiment, and is not described again.
The third specific embodiment of the asphalt pavement structure interlayer shear test device of the invention is different from the first specific embodiment of the asphalt pavement structure interlayer shear test device in that no pressing plate is arranged at the upper end of the bearing rod and the lower end of the pressing head in the embodiment. The rest is the same as the first embodiment, and is not described again.
According to the specific embodiment of the interlaminar shear test method for the asphalt pavement structure, the interlaminar shear test method for the asphalt pavement structure comprises the following steps:
s1: manufacturing a test piece of the asphalt pavement structure layer;
s2: fixing the asphalt pavement structure layer test piece in a sliding bearing seat, starting a press machine, pushing a pressure-bearing rod to vertically move downwards by the press machine, driving a connecting rod to move obliquely downwards by the pressure-bearing rod, and applying a horizontal load and a vertical load to a pressure applying plate by the pressure-bearing rod;
s3: the load collected by the load sensor is increased along with the horizontal sliding of the sliding bearing seat, when the upper layer and the lower layer of the asphalt pavement structure layer test piece obviously slide and the interlayer shear failure occurs, the load reaches a peak value, and the peak load at the moment is recorded.
In step S1, an asphalt pavement structure layer specimen having a size of 300mm × 50mm (length × width × height) is molded in a rut plate mold, and left to stand in a natural state for 24 hours to be demolded. Then the test piece is put into a die with the length, width and height of 300mm, 300mm and 100mm, and a certain amount of super PCR modified emulsified asphalt is uniformly coated on the test piece of the lower layer to be used as the viscous layer oil. After the emulsified asphalt is completely demulsified, an upper asphalt mixture test piece with the size of 300mm by 50mm is molded on the emulsified asphalt by adopting a wheel rolling molding mode. And demolding after curing to obtain a complete test piece with two layers bonded together. The test pieces were cooled and cut to a size of 100mm by 100 mm.
In step S2, the cut asphalt pavement structure layer test piece is fixed on the sliding bearing seat, and a workbench is installed on the lower portion of the sliding bearing seat, so that the sliding of the sliding bearing seat can be controlled by the workbench. And uniformly coating a certain amount of epoxy resin on the test piece of the asphalt pavement structure layer to serve as a bonding layer between the test piece of the asphalt pavement structure layer and the pressing plate, so that the test piece of the asphalt pavement structure layer can be tightly bonded with the pressing plate. The upper pressing plate 4 is fixed on the press head 2 through a nut, the pressing head slowly and continuously descends, the upper pressing plate is adjusted to be matched with the lower pressing plate, and the pressing head continuously descends after the upper pressing plate is adjusted, so that the upper pressing plate and the lower pressing plate are tightly attached.
And starting the press machine, adjusting the speed, starting to perform an interlaminar shear test, and enabling the pressure bearing rod to bear the continuous increase of the pressure and start to vertically slide along the inside of the guide rod.
In step S3, the downward oblique pressure applied by the connecting rod on the pressing plate is also increased, the sliding bearing seat slides horizontally, the included angle between the pressing plate and the connecting rod is changed, the force value and the displacement in the display begin to increase, when the upper and lower layers slide obviously and the interlayer shear failure occurs, the force value reaches the peak value, and the peak value at this time is recorded as the maximum failure force for calculating the interlayer bonding interface strength. Meanwhile, the control module can effectively control the pressure applied to the bearing rod by the press machine, such as intermittent load application, cyclic load application and the like.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (7)
1. The utility model provides a shear test device between bituminous paving structural layer which characterized in that: the shearing test device comprises a workbench, be equipped with the slip that is used for fixed bituminous paving structure layer test piece and bear the seat, be equipped with directly over the slip bears the seat and execute the clamp plate, the shearing test device is still including the pressure-bearing rod that is located workstation one side, the pressure-bearing rod upper end is under the press promotion and along vertical direction motion, the lower extreme of pressure-bearing rod articulates there is the connecting rod, the one end that the pressure-bearing rod was kept away from to the connecting rod is articulated with the board of exerting pressure, the connecting rod is used for exerting horizontal load and vertical load to bituminous paving structure layer test piece when the pressure-bearing rod is down.
2. The interlaminar shear test device for asphalt pavement structures according to claim 1, characterized in that: the shear test device further comprises a guide rod, the axis of the guide rod extends in the vertical direction, and the bearing rod is assembled on the guide rod in a guiding mode in the vertical direction.
3. The interlaminar shear test device for an asphalt pavement structure according to claim 1 or 2, characterized in that: the shear test device further comprises a press machine, and a pressure head of the press machine is located right above the bearing rod.
4. The interlaminar shear test device for asphalt pavement structures according to claim 3, characterized in that: the upper end of the pressure bearing rod is provided with a lower pressure plate, the lower end of the pressure head of the press machine is provided with an upper pressure plate, and the projections of the upper pressure plate and the lower pressure plate in the up-down direction are overlapped.
5. The interlaminar shear test device for asphalt pavement structures according to claim 4, characterized in that: the shear test device is characterized in that a load sensor is arranged between a pressure head of the press machine and the upper pressure plate, the shear test device further comprises a control module, the control module comprises a processor, the processor is in control connection with the press machine and the load sensor, the processor is used for controlling the load applied by the press machine, the control module further comprises a display, and the processor is further used for receiving and processing signals from the load sensor and outputting a processing result to the display for display.
6. The interlaminar shear test device for an asphalt pavement structure according to claim 1 or 2, characterized in that: and a ball plate is arranged between the workbench and the sliding bearing seat.
7. An asphalt pavement structure interlaminar shear test method applied to the asphalt pavement structure interlaminar shear test device of any one of claims 1 to 6, characterized in that: the method comprises the following steps:
s1: manufacturing a test piece of the asphalt pavement structure layer;
s2: fixing the asphalt pavement structure layer test piece in a sliding bearing seat, starting a press machine, pushing a pressure-bearing rod to vertically move downwards by the press machine, driving a connecting rod to move obliquely downwards by the pressure-bearing rod, and applying a horizontal load and a vertical load to a pressure applying plate by the pressure-bearing rod;
s3: the load collected by the load sensor is increased along with the horizontal sliding of the sliding bearing seat, when the upper layer and the lower layer of the asphalt pavement structure layer test piece obviously slide and the interlayer shear failure occurs, the load reaches a peak value, and the peak load at the moment is recorded.
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Families Citing this family (3)
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| CN111735689B (en) * | 2020-07-29 | 2022-07-15 | 安徽荣港建筑工程有限公司 | Steel bridge bituminous pavement shearing fatigue degree detection equipment |
| CN112033777B (en) * | 2020-09-07 | 2021-08-24 | 嘉兴德基机械设计有限公司 | Steel bridge asphalt pavement shearing fatigue degree detection device capable of quickly curing and molding sample |
| CN113984546B (en) * | 2021-09-28 | 2023-08-22 | 北京建筑大学 | Testing machine and testing method for measuring road interlayer shear strength |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004093315A (en) * | 2002-08-30 | 2004-03-25 | Chiyoda Maintenance Kk | Apparatus for testing strength of member |
| CN101598649A (en) * | 2008-12-22 | 2009-12-09 | 长沙理工大学 | Inter-layer interface shearing instrument of pavement structure |
| CN202066761U (en) * | 2011-05-20 | 2011-12-07 | 长安大学 | Torsion shear test device used for bituminous pavement materials and structure |
| CN107764630A (en) * | 2017-10-19 | 2018-03-06 | 长安大学 | A kind of experimental rig for testing bituminous paving failure by shear |
| CN107796714A (en) * | 2017-11-28 | 2018-03-13 | 长安大学 | Simulate the asphalt mixture shearing strength tester of actual wheel load |
| CN107831070A (en) * | 2017-12-04 | 2018-03-23 | 长沙理工大学 | A kind of compression shear test device of composite pavement structure intensity and fatigue |
| CN108507884A (en) * | 2018-03-20 | 2018-09-07 | 和县祥龙沥青混凝土有限公司 | The detection device of inter-layer shearing strength in a kind of asphalt concrete layer |
-
2019
- 2019-07-04 CN CN201910601753.0A patent/CN110411860B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004093315A (en) * | 2002-08-30 | 2004-03-25 | Chiyoda Maintenance Kk | Apparatus for testing strength of member |
| CN101598649A (en) * | 2008-12-22 | 2009-12-09 | 长沙理工大学 | Inter-layer interface shearing instrument of pavement structure |
| CN202066761U (en) * | 2011-05-20 | 2011-12-07 | 长安大学 | Torsion shear test device used for bituminous pavement materials and structure |
| CN107764630A (en) * | 2017-10-19 | 2018-03-06 | 长安大学 | A kind of experimental rig for testing bituminous paving failure by shear |
| CN107796714A (en) * | 2017-11-28 | 2018-03-13 | 长安大学 | Simulate the asphalt mixture shearing strength tester of actual wheel load |
| CN107831070A (en) * | 2017-12-04 | 2018-03-23 | 长沙理工大学 | A kind of compression shear test device of composite pavement structure intensity and fatigue |
| CN108507884A (en) * | 2018-03-20 | 2018-09-07 | 和县祥龙沥青混凝土有限公司 | The detection device of inter-layer shearing strength in a kind of asphalt concrete layer |
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