CN108398379A - A kind of asphalt mastic fibne pull-out testing machine - Google Patents
A kind of asphalt mastic fibne pull-out testing machine Download PDFInfo
- Publication number
- CN108398379A CN108398379A CN201810117597.6A CN201810117597A CN108398379A CN 108398379 A CN108398379 A CN 108398379A CN 201810117597 A CN201810117597 A CN 201810117597A CN 108398379 A CN108398379 A CN 108398379A
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- China
- Prior art keywords
- sliding
- asphalt mastic
- pull
- sliding panel
- fiber
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Classifications
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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
Abstract
The invention discloses a kind of asphalt mastic fibne pull-out testing machines, including rack, sliding panel, sliding rail, sliding block, grip block, mounting bracket, die trial, pull pressure sensor, the loading device for pulling sliding panel to slide；The frame upper end is fixed with sliding rail, and the sliding panel is connected with sliding block, and the sliding block is slided on sliding rail；The mounting bracket is fixed on one end of rack, for installing die trial；The die trial is equipped with cavity, the fiber for being filled in filled bitumen rubber cement and asphalt mastic；The other end in rack is arranged in the loading device, and the loading device is connected with sliding panel, for pulling sliding panel to be slided along sliding rail；The grip block is fixed on mounting bracket, the other end for gripping fiber；The pull pressure sensor is connected with grip block, for detecting the pulling force being subject to during grip block tension.The present invention can test the cohesive force of fiber and asphalt mastic, rationally designed for Practical Project and fiber and Fiber Asphalt Mixture is selected to provide basic foundation.
Description
Technical field
The present invention relates to technical field of road engineering materials, and in particular to a kind of asphalt mastic fibne pull-out testing machine.
Background technology
As China's road transportation industry develops rapidly, the volume of traffic increased dramatically, while by ground surface material performance and production
It is horizontal it is low, construction management is not in place, Service Environment is complicated, the comprehensive function of the maintenance factors such as not in time, bituminous paving usually exists
When reaching design life far away, it just will appear the early damage even structural destruction of bituminous paving.At present at home
In outer road surface case history, addition fiber becomes one of the important channel for improving asphalt comprehensive performance.Fiber asphalt is mixed
It closes material and concern both domestic and external has been obtained with the conveniency in its superior pavement performance and construction.
Asphalt mastic is the binder of asphalt, and fiber, which is added, in asphalt mastic forms " matrix+fiber " composite wood
Material.Fibre reinforced asphalt rubber cement is mainly made of fiber, pitch matrix and interface between the two.It mutually not only rises its median surface
" function served as bridge " of link enhancement fiber and pitch matrix and tie that plus load is transmitted from from matrix to reinforcing fiber.
Important parameter of the interface binding intensity as characterization interface performance, mechanical property and failure mode to composite material have great
Influence, thus accurate characterization interface binding intensity is particularly significant.
The adhesive property of fiber and asphalt mastic is the pass for influencing fiber and splitting effect to asphalt enhancing, toughening and resistance
Key factor.Since the stress between each phase material is transmitted by interface, the efficiency of stress transfer depends on the bonding situation at interface,
Therefore the final mechanical property of composite material is largely controlled by state of interface.Therefore, in evaluation fiber and drip
When the adhesive property of green rubber cement, cohesive force is very important technical indicator, but for a long time, due to lacking corresponding experiment dress
It sets, the test of interfacial adhesion is extremely difficult, and the adhesive property between fiber and asphalt mastic there is no directly applicable experiment side
Method.
Therefore, in order to test the cohesive force of fiber and asphalt mastic, activeness and quietness of the fiber to asphalt mastic is understood in depth
Mechanism, and preferably rationally designed for Practical Project and fiber and Fiber Asphalt Mixture is selected to provide basic foundation, it is necessary to
Develop a set of simple, applicable asphalt mastic fibne pull-out testing machine.
Invention content
Technical problem solved by the invention is to provide a kind of asphalt mastic fibne pull-out testing machine, with test fiber with
Cohesive force between asphalt mastic.
Realize that the technical solution of the object of the invention is：
A kind of asphalt mastic fibne pull-out testing machine, including rack, sliding panel, sliding rail, sliding block, grip block, mounting bracket, examination
Mould, pull pressure sensor, the loading device for pulling sliding panel to slide；
The frame upper end is fixed with sliding rail, and the sliding panel is connected with sliding block, and the sliding block is slided on sliding rail；Institute
One end that mounting bracket is fixed on rack is stated, for installing die trial；The die trial is equipped with cavity, is used for filled bitumen rubber cement and pitch
The fiber filled in rubber cement；The other end in rack is arranged in the loading device, and the loading device is connected with sliding panel, is used for
Sliding panel is pulled to be slided along sliding rail；The grip block is fixed on mounting bracket, the other end for gripping fiber；It is described
Pull pressure sensor is connected with grip block, for detecting the pulling force being subject to during grip block tension.
Compared with prior art, the present invention its remarkable advantage：
(1) asphalt mastic fibne pull-out testing machine of the invention, fiber and pitch can be tested by die trial and loading device
The cohesive force of rubber cement rationally designs for Practical Project and fiber and Fiber Asphalt Mixture is selected to provide basic foundation.
(2) asphalt mastic fibne pull-out testing machine of the invention is equipped with Laboratory Module, heating device, wind turbine, with regulation experiment
Environment can test the cohesive force of fiber and asphalt mastic under condition of different temperatures.
(3) asphalt mastic fibne pull-out testing machine of the invention, the cavity of die trial is interior to be equipped with multiple partition boards, can be to difference
The sample of volume is tested, while can be carried out at the same time test to multiple samples.
(4) asphalt mastic fibne pull-out testing machine of the invention, by tablet computer can realize equipment automatically control and
Digitlization display.
Present invention is further described in detail below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the plan view of the pull-out test machine of the present invention.
Fig. 2 is loading device plan view.
Fig. 3 is loading device left view.
Fig. 4 is die trial structure top view.
Fig. 5 is pull-out test machine general structure schematic diagram.
Specific implementation mode
In order to illustrate technical scheme of the present invention and technical purpose, below in conjunction with the accompanying drawings and specific embodiment is the present invention
It is further to introduce.
In conjunction with Fig. 1-Fig. 3, a kind of asphalt mastic fibne pull-out testing machine of the invention, including rack 1, sliding panel 2, sliding rail
3, sliding block 4, grip block 5, mounting bracket 6, die trial 7, pull pressure sensor 8, the loading device for pulling sliding panel 2 to slide；
1 upper end of the rack is fixed with sliding rail 3, and the sliding panel 2 is connected with sliding block 4, the sliding block 4 on sliding rail 3
Sliding；The mounting bracket 6 is fixed on one end of rack 1, for installing die trial 7；The die trial 7 is equipped with cavity, for filling drip
The fiber filled in green rubber cement and asphalt mastic；The other end in rack 1, the loading device and cunning is arranged in the loading device
Movable plate 2 is connected, for pulling sliding panel 2 to be slided along sliding rail 3；The grip block 5 is fixed on mounting bracket 6, solid for being clamped
Determine the other end of fiber；The pull pressure sensor 8 is connected with grip block 5, is subject to during 5 tension of grip block for detecting
Pulling force, to test the adhesive property of fiber and asphalt mastic.
In some embodiments, the loading device is electric cylinder or cylinder, electric cylinder or cylinder and 2 phase of sliding panel
Even, the piston rod of electric cylinder or cylinder is parallel with sliding rail 3.
In other embodiment, the loading device includes motor 9, leading screw 10, screw 11, bearing block 12；Institute
State motor 9, bearing block 12 is each attached in rack 1；The motor 9 is connected with leading screw 10；10 both ends of the leading screw pass through bearing
Seat 12 supports；10 length direction of the leading screw is parallel with 3 length direction of sliding rail；The screw 11 is connected with sliding panel 2；Motor 9
Leading screw 10 is driven to rotate, being further driven to sliding panel 2 by screw 11 slides.
Further, 10 both ends of the leading screw are additionally provided with travel switch 13, sliding to the sliding stroke of limit slippage plate 2
When touching travel switch 13 in 2 sliding process of movable plate, motor 9 stops operating, and sliding panel 2 no longer slides.
Further, 1 upper end of the rack is additionally provided with Laboratory Module 14, the sliding panel 2, sliding rail 3, sliding block 4, grip block 5,
Mounting bracket 6, die trial 7, pull pressure sensor 8, travel switch 13 are arranged in Laboratory Module 14；14 upper end of the Laboratory Module is equipped with
Hatch door 15；The rack 1 is equipped with heating device 16, and heating device 16 in Laboratory Module 14 to heating；The experiment
Cabin 14 is equipped with thermovent, and thermovent is equipped with wind turbine 17, for radiating in Laboratory Module 14；The Laboratory Module 14 is equipped with
Temperature sensor 18, the heating temperature that temperature sensor 18 passes through control heating device 16.
The loading device can be arranged in Laboratory Module 14, may also be arranged on outside Laboratory Module 14, be arranged with 2 connected end of sliding panel
In Laboratory Module 14.
Further, the observation window 19 that transparent material is made is additionally provided on the hatch door 15, so as to being drawn in Laboratory Module 14
The process of pulling out is observed.
Further, 15 lower end of hatch door is additionally provided with sealing ring, to be sealed to hatch door 15.
Further, the heating device 16 uses ptc heater, entire testing machine plug-in to can be realized to Laboratory Module 14
Inside heated.
Further, the wind turbine 17 is centrifugal blower.
Into in conjunction with Fig. 4, a step, multiple slots are equipped in the cavity of the die trial 7, slot is equipped with partition board 20, described
Partition board 20 be equipped with to fiber by gap 21；Partition board 20 by cavity to be divided into a plurality of cavities, by the way that partition board is arranged
20 quantity can adjust the packing volume or length of asphalt mastic, further adjust the combination of fiber one end and asphalt mastic
Length；
Further, the die trial 7 is equipped with multiple rows of cavity, is tested while multiple samples can be achieved at the same time.
Further, 1 bottom end of the rack is additionally provided with wheel 22, so as to the movement of entire drawing.
In some embodiments, the pull pressure sensor is directly connected with digital display.
In other embodiment, in conjunction with Fig. 5, the pressure sensor is connected with data collector, the data
Collector acquisition pressure sensor data simultaneously reach tablet computer 23, tablet computer 23 with control motor 9, heating device 16,
The operation of wind turbine 17, to control tensile speed, the test temperature of loading device；The tablet computer 23 is additionally provided with data storage mould
Block, to store test parameters, including test number, test temperature, tensile speed, bitumen specifications, fiber information and experiment
End condition.It can realize that whole drawbench automatically controls and the detection data of real-time display pulling force by tablet computer 23.
In use, by asphalt mastic fibre pouring inside die trial 7, placed according to required specimen length by partition board 20 is adjusted
In the different slot position of die trial 7.First the asphalt mastic of half is placed on inside die trial 7, it is then that one end of fiber is embedding
It is cast on fiber on asphalt mastic, then by remaining asphalt mastic, one end of fiber is made to be wrapped in asphalt mastic.It beats
Heating device 16 is opened, so that temperature in Laboratory Module 14 is reached test temperature, is conserved by test requirements document.When sample reaches maintenance
Between after, the fiber other end is connected on grip block 5, open loading device, pulling force is demarcated.
Claims (9)
1. a kind of asphalt mastic fibne pull-out testing machine, which is characterized in that including rack (1), sliding panel (2), sliding rail (3), slide
Block (4), grip block (5), mounting bracket (6), die trial (7), pull pressure sensor (8), the load for pulling sliding panel (2) to slide
Device；
Rack (1) upper end is fixed with sliding rail (3), and the sliding panel (2) is connected with sliding block (4), the sliding block (4) with cunning
Rail slides on (3)；The mounting bracket (6) is fixed on one end of rack (1), for installing die trial (7)；The die trial (7) is equipped with
Cavity, the fiber for being filled in filled bitumen rubber cement and asphalt mastic；The loading device is arranged in the another of rack (1)
End, the loading device is connected with sliding panel (2), for pulling sliding panel (2) to be slided along sliding rail (3)；The grip block (5)
It is fixed on mounting bracket (6), the other end for gripping fiber；The pull pressure sensor (8) and grip block (5) phase
Even, for detecting the pulling force being subject to during grip block (5) tension.
2. a kind of asphalt mastic fibne pull-out testing machine according to claim 1, which is characterized in that the loading device is
Electric cylinder or cylinder, electric cylinder or cylinder are connected with sliding panel (2), and the piston rod of electric cylinder or cylinder is parallel with sliding rail (3).
3. a kind of asphalt mastic fibne pull-out testing machine according to claim 1, which is characterized in that the loading device packet
Include motor (9), leading screw (10), screw (11), bearing block (12)；The motor (9), bearing block (12) are each attached to rack (1)
On；The motor (9) is connected with leading screw (10)；Leading screw (10) both ends are supported by bearing block (12)；The leading screw (10)
Length direction is parallel with sliding rail (3) length direction；The screw (11) is connected with sliding panel (2)；Motor (9) drives leading screw (10)
Rotation is further driven to sliding panel (2) sliding by screw (11).
4. a kind of asphalt mastic fibne pull-out testing machine according to claim 3, which is characterized in that the leading screw (10) two
End is additionally provided with travel switch (13), to the sliding stroke of limit slippage plate (2).
5. a kind of asphalt mastic fibne pull-out testing machine according to claim 4, which is characterized in that on the rack (1)
End is additionally provided with Laboratory Module (14), the sliding panel (2), sliding rail (3), sliding block (4), grip block (5), mounting bracket (6), die trial (7),
Pull pressure sensor (8), travel switch (13) are arranged in Laboratory Module (14)；Laboratory Module (14) upper end is equipped with hatch door
(15)；The hatch door (15) is equipped with observation window (19)；The rack (1) is equipped with heating device (16), heating device (16)
To being heated in Laboratory Module (14)；The Laboratory Module (14) is equipped with thermovent, and thermovent is equipped with wind turbine (17), uses
In to radiating in Laboratory Module (14)；The Laboratory Module (14) is equipped with temperature sensor (18), and temperature sensor (18) passes through
Control the heating temperature of heating device (16).
6. a kind of asphalt mastic fibne pull-out testing machine according to claim 5, which is characterized in that the heating device
(16) ptc heater is used.
7. a kind of asphalt mastic fibne pull-out testing machine according to claim 5, which is characterized in that the wind turbine (17) is
Centrifugal blower.
8. a kind of asphalt mastic fibne pull-out testing machine according to claim 5, which is characterized in that the pressure sensor
It is connected with data collector, the data of the data collector acquisition pressure sensor simultaneously reach tablet computer (23), tablet electricity
Brain (23) is to control the operation of motor (9), heating device (16), wind turbine (17), to control tensile speed, the experiment of loading device
Temperature；The tablet computer (23) is additionally provided with data memory module, to store test parameters.
9. a kind of asphalt mastic fibne pull-out testing machine according to claim 1, which is characterized in that the die trial (7)
Be equipped with multiple slots in cavity, slot is equipped with partition board (20), the partition board (20) be equipped with to fiber by gap
(21)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810117597.6A CN108398379B (en) | 2018-02-06 | 2018-02-06 | Asphalt mastic fiber drawing testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810117597.6A CN108398379B (en) | 2018-02-06 | 2018-02-06 | Asphalt mastic fiber drawing testing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108398379A true CN108398379A (en) | 2018-08-14 |
| CN108398379B CN108398379B (en) | 2020-11-13 |
Family
ID=63095840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810117597.6A Active CN108398379B (en) | 2018-02-06 | 2018-02-06 | Asphalt mastic fiber drawing testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108398379B (en) |
Cited By (2)
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| CN110196227A (en) * | 2019-07-04 | 2019-09-03 | 河北工程大学 | A kind of fiber and asphalt material adhesion strength test device and method |
| CN116929905A (en) * | 2023-06-19 | 2023-10-24 | 扬州大学 | Device and method for accurately testing mechanical behavior of interface of single fiber-asphalt substrate |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108398379B (en) | 2020-11-13 |
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