CN106501096A - A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device - Google Patents
A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device Download PDFInfo
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- CN106501096A CN106501096A CN201610921949.4A CN201610921949A CN106501096A CN 106501096 A CN106501096 A CN 106501096A CN 201610921949 A CN201610921949 A CN 201610921949A CN 106501096 A CN106501096 A CN 106501096A
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- test specimen
- ground surface
- staight scissors
- surface material
- electric cylinder
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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
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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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
- G01N2203/0058—Kind of property studied
- G01N2203/0069—Fatigue, creep, strain-stress relations or elastic constants
- G01N2203/0073—Fatigue
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- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device.Which includes frame, longitudinal load maintainer, horizontal addload mechanism and horizontal fixed mechanism；Longitudinal load maintainer includes longitudinal electric cylinder and upper padding plate；Longitudinal electric cylinder is located at frame inner top, and rotating shaft below connects upper padding plate；Horizontal addload mechanism includes guide rail；Guide rail is located at frame inner bottom part, which is provided with slide block；Lower bolster is located on slide block, and its left end is connected with the horizontal electric cylinder on frame left side wall by fixture block；Test specimen is located between upper padding plate and lower bolster, and its top left and right sides is equipped with jack；Jack is connected horizontally on frame side wall.Compared with prior art, the present invention can obtain the rule that tack coat fatigue properties road pavement characteristic of material mechanics under pressure affects in the case where force-bearing situation residing for real ground surface material is close to；The fatigue resistance under different pressures load, different staight scissors displacements and speed can be studied.
Description
Technical field
The invention belongs to pavement double-layer Material Testing Technology field, it particularly relates to it is double-deck long to arrive a kind of ground surface material
Cube test specimen compresses staight scissors fatigue experimental device.
Background technology
The indoor small fatigue test of country's road pavement material is primarily directed to the characteristic of single asphalt, example at present
The such as end sinusoidal loading test of cantilever ladder beam test specimen, beam specimen fatigue test etc..And have been found that in practice, interlayer glues
Often be damaged at knot layer, be in pavement structure, to compare weak link, especially on the more road of heavy-duty vehicle by
It is damaged in shearing strength deficiency.Therefore obtain pavement structure interlayer tack coat fatigue behaviour at various pressures and
The impact of road pavement structural mechanical property is most important.
Content of the invention
For solving above-mentioned technical problem, the invention provides a kind of ground surface material bilayer cuboid examination of suitable varying environment
Part compresses staight scissors fatigue experimental device.
A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device of the present invention, the test dress
Put including frame 1, longitudinal load maintainer, horizontal addload mechanism and horizontal fixed mechanism；Longitudinal load maintainer includes longitudinal electric
Cylinder 10 and upper padding plate 9；Longitudinal electric cylinder 10 is located at 1 inner top of frame, and rotating shaft below connects upper padding plate 9；Horizontal addload machine
Structure includes horizontal electric cylinder 6, fixture block 5, upper padding plate 9, slide block 3 and guide rail 2；Guide rail 2 is located at 1 inner bottom part of frame, which is provided with cunning
Block 3；Lower bolster 4 is located on slide block 3, and its left end is connected with the horizontal electric cylinder 6 on 1 left side wall of frame by fixture block 5；Road surface is double
Layer material cuboid test specimen 7 is located between upper padding plate 9 and lower bolster 4, and its top left and right sides is equipped with jack 8；Jack 8
It is connected horizontally on 1 side wall of frame.
A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device of the present invention, the guide rail 2
Secondary for one, it is fixedly mounted in frame 1 at equal intervals.
A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device of the present invention, the slide block 3
Friction pair is constituted with guide rail 2, contact surface is grease lubrication.
A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device of the present invention, the slide block 3
It is connected by hexagon socket head cap screw with lower bolster.
A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device of the present invention, the fixture block 5
One end is threaded connection with horizontal electric cylinder 6, its retaining part with 4 relevant position of lower bolster on be provided with through hole, for bolt
Fastening.
A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device of the present invention, the road surface are double
7 points of layer material cuboid testpieces is two parts, and upper and lower two parts are asphalt 701, and centre is provided with tack coat 702.
A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device of the present invention, the road surface are double
The upper and lower surface of layer material cuboid testpieces 7 smears identical epoxy resin, for consolidating with upper lower bolster.
A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device of the present invention, the level electricity
Dynamic cylinder 6 and longitudinal electric cylinder 10 adopt displacement-control mode, can precise control test specimen staight scissors displacement and decrement, and will be complete
Portion's data reach host computer.
In process of the test, ground surface material bilayer cuboid test specimen is first made, is made after finishing in asphalt 701
Cylinder test specimen 7 is placed on lower bolster 4, this moment after resin dries certain time by upper and lower surface uniform application epoxy resin
Upper padding plate 9 is also placed in 7 upper surface of test specimen, the position of jack 8 is adjusted, test specimen 7 is tightly pushed down in both sides, open longitudinal electric
Cylinder 10, be compacted upper padding plate 9, about 10 minutes later epoxy resin test specimen 7 and upper lower bolster are cemented, afterwards open horizontal electric
Cylinder 6, drives fixture block 5 and lower bolster 4 and slide block 3 to move reciprocatingly on guide rail 2, and test specimen 7 is in staight scissors state.Host computer is recorded
The lower stroke of longitudinal electric cylinder 10, the staight scissors speed of horizontal electric cylinder 6 and staight scissors displacement, stop when tack coat is damaged real
Test, adopt heater 7 upper and lower surface of test specimen to be heated with aging epoxy resin, test specimen 5 is removed from backing plate, cleaning pad
Plate, experiment terminate.
Compared with prior art, ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device of the present invention
Tack coat fatigue properties road pavement under pressure can be obtained in the case where force-bearing situation residing for real ground surface material is close to
The rule that characteristic of material mechanics affects；The fatigue resistance under different pressures load, different staight scissors displacements and speed can be studied.
Description of the drawings
Fig. 1 is assay device figure of the present invention；1- frames；2- guide rails；3- slide blocks；4- lower bolsters；5- fixture blocks；6- levels
Electric cylinder；7- ground surface materials bilayer cuboid test specimen；8- jack；9- upper padding plates；10- longitudinal electric cylinders；Asphalt-
701；Centre is provided with tack coat -702.
Specific embodiment
With reference to specific embodiment to ground surface material of the present invention bilayer cuboid test specimen compression staight scissors fatigue
Assay device is described further, but protection scope of the present invention is not limited to this.
Embodiment 1
A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device, the assay device include frame 1,
Longitudinal load maintainer, horizontal addload mechanism and horizontal fixed mechanism；Longitudinal load maintainer includes longitudinal electric cylinder 10 and upper padding plate
9；Longitudinal electric cylinder 10 is located at 1 inner top of frame, and rotating shaft below connects upper padding plate 9；Horizontal addload mechanism includes level electricity
Dynamic cylinder 6, fixture block 5, upper padding plate 9, slide block 3 and guide rail 2；Guide rail 2 is located at 1 inner bottom part of frame, which is provided with slide block 3；Lower bolster 4 sets
On slide block 3, its left end is connected with the horizontal electric cylinder 6 on 1 left side wall of frame by fixture block 5；Pavement double-layer material cuboid
Test specimen 7 is located between upper padding plate 9 and lower bolster 4, and its top left and right sides is equipped with jack 8；Jack 8 is connected horizontally on machine
On 1 side wall of frame.
The guide rail 2 is a pair, is fixedly mounted in frame 1 at equal intervals.The slide block 3 constitutes friction pair with guide rail 2,
Contact surface is grease lubrication.The slide block 3 is connected by hexagon socket head cap screw with lower bolster.5 one end of the fixture block and level electricity
Dynamic cylinder 6 is threaded connection, its retaining part with 4 relevant position of lower bolster on be provided with through hole, for bolt fasten.The road surface
7 points of double layer material cuboid testpieces is two parts, and upper and lower two parts are asphalt 701, and centre is provided with tack coat
702.The upper and lower surface of the pavement double-layer material cuboid testpieces 7 smears identical epoxy resin, for upper underlay
Plate is consolidated.The horizontal electric cylinder 6 and longitudinal electric cylinder 10 adopt displacement-control mode, being capable of precise control test specimen staight scissors position
Move and decrement, and total data is reached host computer.
Embodiment 2
A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device, the assay device include frame 1,
Longitudinal load maintainer, horizontal addload mechanism and horizontal fixed mechanism；Longitudinal load maintainer includes longitudinal electric cylinder 10 and upper padding plate
9；Longitudinal electric cylinder 10 is located at 1 inner top of frame, and rotating shaft below connects upper padding plate 9；Horizontal addload mechanism includes level electricity
Dynamic cylinder 6, fixture block 5, upper padding plate 9, slide block 3 and guide rail 2；Guide rail 2 is located at 1 inner bottom part of frame, which is provided with slide block 3；Lower bolster 4 sets
On slide block 3, its left end is connected with the horizontal electric cylinder 6 on 1 left side wall of frame by fixture block 5；Pavement double-layer material cuboid
Test specimen 7 is located between upper padding plate 9 and lower bolster 4, and its top left and right sides is equipped with jack 8；Jack 8 is connected horizontally on machine
On 1 side wall of frame.
The guide rail 2 is a pair, is fixedly mounted in frame 1 at equal intervals.The slide block 3 constitutes friction pair with guide rail 2,
Contact surface is grease lubrication.The slide block 3 is connected by hexagon socket head cap screw with lower bolster.5 one end of the fixture block and level electricity
Dynamic cylinder 6 is threaded connection, its retaining part with 4 relevant position of lower bolster on be provided with through hole, for bolt fasten.The road surface
7 points of double layer material cuboid testpieces is two parts, and upper and lower two parts are asphalt 701, and centre is provided with tack coat
702.The upper and lower surface of the pavement double-layer material cuboid testpieces 7 smears identical epoxy resin, for upper underlay
Plate is consolidated.The horizontal electric cylinder 6 and longitudinal electric cylinder 10 adopt displacement-control mode, being capable of precise control test specimen staight scissors position
Move and decrement, and total data is reached host computer.The tack coat is formed by steel bonding glue JKJ-G1, is mixed thoroughly in its each component
When, 4,7- dimethoxys phenanthrene -1, the 2- diketone for accounting for its quality 2% is added in JKJ-G1.Add 4,7- dimethoxy phenanthrene -1,2-
Compared with former steel bonding glue, the steel bonding glue is just drawing adhesive strength for 4.5Mp with test specimen to steel bonding glue after diketone, enhances
24.1%.
In process of the test, ground surface material bilayer cuboid test specimen is first made, is made after finishing in asphalt 701
Cylinder test specimen 7 is placed on lower bolster 4, this moment after resin dries certain time by upper and lower surface uniform application epoxy resin
Upper padding plate 9 is also placed in 7 upper surface of test specimen, the position of jack 8 is adjusted, test specimen 7 is tightly pushed down in both sides, open longitudinal electric
Cylinder 10, be compacted upper padding plate 9, about 10 minutes later epoxy resin test specimen 7 and upper lower bolster are cemented, afterwards open horizontal electric
Cylinder 6, drives fixture block 5 and lower bolster 4 and slide block 3 to move reciprocatingly on guide rail 2, and test specimen 7 is in staight scissors state.Host computer is recorded
The lower stroke of longitudinal electric cylinder 10, the staight scissors speed of horizontal electric cylinder 6 and staight scissors displacement, stop when tack coat is damaged real
Test, adopt heater 7 upper and lower surface of test specimen to be heated with aging epoxy resin, test specimen 5 is removed from backing plate, cleaning pad
Plate, experiment terminate.
Compared with prior art, ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device of the present invention
Tack coat fatigue properties road pavement under pressure can be obtained in the case where force-bearing situation residing for real ground surface material is close to
The rule that characteristic of material mechanics affects；The fatigue resistance under different pressures load, different staight scissors displacements and speed can be studied.
Claims (8)
1. a kind of ground surface material bilayer cuboid test specimen compresses staight scissors fatigue experimental device, it is characterised in that the assay device
Including frame (1), longitudinal load maintainer, horizontal addload mechanism and horizontal fixed mechanism；Longitudinal load maintainer includes longitudinal electric
Cylinder (10) and upper padding plate (9)；Longitudinal electric cylinder (10) is located at frame (1) inner top, and rotating shaft below connects upper padding plate (9)；
Horizontal addload mechanism includes horizontal electric cylinder (6), fixture block (5), upper padding plate (9), slide block (3) and guide rail (2)；Guide rail (2) is located at
Frame (1) inner bottom part, which is provided with slide block (3)；Lower bolster (4) is located on slide block (3), and its left end is by fixture block (5) and frame
(1) horizontal electric cylinder (6) connection on left side wall；Pavement double-layer material cuboid test specimen (7) is located at upper padding plate (9) and lower bolster
(4), between, its top left and right sides is equipped with jack (8)；Jack (8) is connected horizontally on the wall of frame (1) side.
2. ground surface material bilayer cuboid test specimen according to claim 1 compresses staight scissors fatigue experimental device, and its feature exists
In described guide rail (2) are a pair, are fixedly mounted in frame (1) at equal intervals.
3. ground surface material bilayer cuboid test specimen according to claim 1 compresses staight scissors fatigue experimental device, and its feature exists
In slide block (3) constitute friction pair with guide rail (2), and contact surface is grease lubrication.
4. ground surface material bilayer cuboid test specimen according to claim 1 compresses staight scissors fatigue experimental device, and its feature exists
In slide block (3) are connected by hexagon socket head cap screw with lower bolster.
5. ground surface material bilayer cuboid test specimen according to claim 1 compresses staight scissors fatigue experimental device, and its feature exists
In, fixture block (5) one end is threaded connection with horizontal electric cylinder (6), its retaining part with lower bolster (4) relevant position
Through hole is provided with, is fastened for bolt.
6. ground surface material bilayer cuboid test specimen according to claim 1 compresses staight scissors fatigue experimental device, and its feature exists
In, the pavement double-layer material cuboid testpieces (7) is divided into two parts, and upper and lower two parts are asphalt (701), in
Between be provided with tack coat (702).
7. ground surface material bilayer cuboid test specimen according to claim 1 compresses staight scissors fatigue experimental device, and its feature exists
In, the upper and lower surface of the pavement double-layer material cuboid testpieces (7) smears identical epoxy resin, for upper underlay
Plate is consolidated.
8. ground surface material bilayer cuboid test specimen according to claim 1 compresses staight scissors fatigue experimental device, and its feature exists
In horizontal electric cylinder (6) and longitudinal electric cylinder (10) adopt displacement-control mode, being capable of precise control test specimen staight scissors position
Move and decrement, and total data is reached host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610921949.4A CN106501096A (en) | 2016-10-21 | 2016-10-21 | A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device |
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| CN201610921949.4A CN106501096A (en) | 2016-10-21 | 2016-10-21 | A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device |
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| CN201610921949.4A Withdrawn CN106501096A (en) | 2016-10-21 | 2016-10-21 | A kind of ground surface material bilayer cuboid test specimen compression staight scissors fatigue experimental device |
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Cited By (5)
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| CN106932282A (en) * | 2017-03-31 | 2017-07-07 | 长安大学 | A kind of bituminous paving interlayer shearing test device |
| CN109030242A (en) * | 2018-08-15 | 2018-12-18 | 三峡大学 | A kind of electromagnetic power rock direct shear apparatus and operating method |
| CN109436374A (en) * | 2018-11-30 | 2019-03-08 | 中国航空工业集团公司沈阳飞机设计研究所 | Canopy installation method in a kind of test of aircraft fatigue |
| CN110542618A (en) * | 2019-09-11 | 2019-12-06 | 东南大学 | Direct shear test method for interlaminar shear strength of emulsified asphalt surface treatment layer |
| CN114705621A (en) * | 2022-06-06 | 2022-07-05 | 江苏康程新材料科技有限公司 | Device and method for detecting bonding strength between layers of outer wall decorative plate |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN109030242A (en) * | 2018-08-15 | 2018-12-18 | 三峡大学 | A kind of electromagnetic power rock direct shear apparatus and operating method |
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| CN109436374A (en) * | 2018-11-30 | 2019-03-08 | 中国航空工业集团公司沈阳飞机设计研究所 | Canopy installation method in a kind of test of aircraft fatigue |
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| CN114705621A (en) * | 2022-06-06 | 2022-07-05 | 江苏康程新材料科技有限公司 | Device and method for detecting bonding strength between layers of outer wall decorative plate |
| CN114705621B (en) * | 2022-06-06 | 2022-09-02 | 江苏康程新材料科技有限公司 | Device and method for detecting bonding strength between layers of outer wall decorative plate |
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