CN106248723B - The method of bitumen mixture specimen volume change when measuring induction heating - Google Patents
The method of bitumen mixture specimen volume change when measuring induction heating Download PDFInfo
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- CN106248723B CN106248723B CN201610628468.4A CN201610628468A CN106248723B CN 106248723 B CN106248723 B CN 106248723B CN 201610628468 A CN201610628468 A CN 201610628468A CN 106248723 B CN106248723 B CN 106248723B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/16—Investigating or analyzing materials by the use of thermal means by investigating thermal coefficient of expansion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
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Abstract
The invention belongs to asphalt performance the field of test technology, it particularly relates to it is a kind of measurement induction heating when bitumen mixture specimen volume change instrument and method.The instrument includes electromagnetic launch system, scalable conducting connecting bar, temperature sensor A, temperature sensor B, temperature sensor C, temperature sensor D, temperature sensor E, camera positioning device, camera, scale, test specimen (11), patch, fixed link, interface, screen, control keyboard, alternating current generator, image analysis apparatus, wind-heat temperature regulating device, connection bar controlling, image collecting device control system, control cabinet, controller, environmental cabinet and telescopic rod.Compared with prior art, the configuration of the present invention is simple, easy to operate, using effect is good, can easy, quick measurement induction heating process bitumen mixture specimen volume change situation, and induction heating process is easily controllable.
Description
Technical field
The invention belongs to asphalt performance the field of test technology, it particularly relates to pitch when arriving a kind of measurement induction heating
The instrument and method of compound test specimen volume change.
Background technique
Asphalt concrete pavement at normal temperature can be with self-healing, but speed is very slow, and requires not traffic load
Ringing.When the adhesive in asphalt is when the intermittent phase is by high temperature, the healing rate of pitch can be improved, pitch healing
Asphalt concrete pavement can be repaired by the diseases such as the crack caused by low temperature, fatigue and base course reflection is loose, therefore drip can be improved
The service life of green concrete road surface reduces the maintenance and reparation on road surface, brings the benefit of economy and traffic etc..Pitch is mixed
Solidifying soil surface self-healing technology will not be brought a negative impact, such as skid resistance compared with the reclamation activities such as sealant to road surface is repaired
Energy is equal.Therefore domestic and foreign scholars have carried out bituminous pavement induction heating self-healing technical research extensively.
Bituminous pavement induction heating self-healing technology is to be filled by adding the bituminous concrete of conductive fiber in Electromagnetic Launching
When setting the movement for doing cutting magnetic induction line in the magnetic field of generation, electric current will be generated by adding in the bituminous concrete of conductive fiber,
To heat up, existing damage of healing.But whether induction heating can make the volume of bituminous pavement vary widely, and draw
Playing the diseases such as bulge is one of the critical issue that we are concerned about.But at present still without good integrated room
Interior testing equipment is used to measure the instrument and method of induction heating process bitumen mixture specimen volume change situation.
Summary of the invention
In order to solve the above technical problems, the measurement that the present invention provides a kind of structures is simple, easy to operate, using effect is good
The instrument and method of bitumen mixture specimen volume change when induction heating.
The instrument of bitumen mixture specimen volume change, the instrument packet when a kind of measurement induction heating of the present invention
It includes and is divided into left and right side, left side is environmental cabinet 24, and right hand top is control cabinet 22；It is alternating current generator below control cabinet 22
17；The lower left of alternating current generator 17 is followed successively by wind-heat temperature regulating device 19 and connection bar controlling 20 down, and lower right is down
It is followed successively by image analysis apparatus 18 and image collecting device control system 21；Electromagnetic launch system is equipped at top in environmental cabinet 24
1, scale 10 is respectively carved in two sidewalls, and center is placed with test specimen 11, and 11 upper and lower sides of test specimen are equipped with camera positioning device 8；Electromagnetic Launching
The both ends of device 1 pass through the two sidewalls horizontal connection of two scalable conducting connecting bars 2 and environmental cabinet 24, and also and alternative electric generation
Machine 17 connects；Electromagnetic launch system 1 moves horizontally under the guidance of two scalable conducting connecting bars 2；Scalable conduction is even
Extension bar 2 is connected with bar controlling 20 is connect；There are two camera positioning devices 8, and cross section is arc-shaped, and raised sides are logical
Telescopic rod 25 is crossed to connect with the top surface of environmental cabinet 24 or bottom surface；There are four the installations of 8 concave side of camera positioning device by circular arc
The camera 9 of face equal part；180 ° of the direction of camera 9 is adjustable；The length for adjusting telescopic rod 25 is adjustable camera positioning dress
Set the height of 8 Yu camera 9；Camera positioning device 8, camera 9 and telescopic rod 25 and image collecting device control system
21 connections；There are two fixed links 13, is located at 11 two sides of test specimen, and test specimen 11 can be fixed on to the centre of environmental cabinet 24；Every
One end of fixed link 13 is connect by patch 12 with test specimen 11, and the other end is connect with the interface 14 of 24 side wall of environmental cabinet；Two rows are carved
The upper and lower ends of degree 10 are set altogether there are four temperature sensor, respectively temperature sensor B4, temperature sensor C5, temperature sensor
D6 and temperature sensor E7；Temperature sensor A3 is located at surface of test piece position；Five temperature sensors and wind-heat temperature regulating device 19
Connection；Control cabinet 22 includes cabinet, the intracorporal electronic circuit board of case and screen 15 and control keyboard 16 on cabinet lateral wall；
Controller 23 is installed on electronic circuit board；Five temperature sensors, screen 15, control keyboard 16, alternating current generator 17, image
Analytical equipment 18, connection bar controlling 20 and image collecting device control system 21 are connect with controller 23.
The method of bitumen mixture specimen volume change, the method specifically walk when measurement induction heating of the present invention
Suddenly are as follows:
1) two patches 12 are fixed with epoxy glue in the two sides along test specimen diameter, is fixed in surface of test piece using epoxy glue
Temperature sensor A3, test specimen 11 at normal temperature health for 24 hours so that epoxy glue completes solidification, two patches 12 and temperature sensor
A3 is firmly cohered in surface of test piece；
2) two patches 12 on test specimen 11 are connect with two fixed links 13 respectively, by the other end of two fixed links with
Two interfaces 14 connect, so that test specimen 11 is fixed in environmental cabinet 24；
3) length of two telescopic rods 25 adjusted by image collecting device control system 21, adjust eight cameras 9
Direction, guarantee that eight cameras 9 can comprehensively acquire the comprehensive image of test specimen 11；
4) set environment box temperature degree, the temperature of environmental cabinet use the live atmosphere of asphalt induction heating recovery project
The test specimen 11 fixed is kept the temperature 5h by temperature in environmental cabinet；
5) by image analysis apparatus 18, and by the structure chart of the scale 10 of 24 two sides of environmental cabinet and environmental cabinet, by eight
Eight views that a camera 9 acquires do 3 D spliced；By the volume of 18 calculation testing piece 11 of image analysis apparatus；
6) after test specimen volume calculates before induction heating, alternating current generator 17 is opened, is generated in electromagnetic launch system 1
The electromagnetic wave signal of fixing intensity, and by two scalable conducting connecting bars (2) and bar controlling 20 is connected, allow electromagnetism
Emitter 1 does horizontally uniform motion；This is equivalent to test specimen 11 and does cutting magnetic induction line movement in magnetic field, at this moment if examination
Adding in part 11 has conducting medium, will generate electric current inside test specimen 11, to heat up, accelerates to repair existing damage；
7) with the heating of surface of test piece, according to the temperature conditions that temperature sensor A3 is transmitted, controller acquires sense in real time
Answer heating time, surface of test piece temperature；Image collecting device control system 21 acquires 11 image of test specimen in real time, and passes through image point
Analysis apparatus 18, and by the structure chart of the scale 10 of 24 two sides of environmental cabinet and environmental cabinet, eight views that eight cameras 9 are acquired
Figure does 3 D spliced；By the volume of the real-time calculation testing piece 11 of image analysis apparatus 18；Finally obtain induction heating time, test specimen
Surface temperature, test specimen volume are in the test data of one；During test, when surface of test piece temperature is greater than asphalt softening point temperature
When, equipment automatically can be by the collaborative work of alternating current generator 17, temperature sensor A3 and controller 23 by the temperature of surface of test piece
It spends constant in asphalt softening point temperature.
Compared with prior art, it is of the present invention measurement induction heating when bitumen mixture specimen volume change instrument
And method has the advantage that
1) apparatus structure is simple, design rationally and installation and easy to use, input cost is lower, and install compact accounts for
It is smaller with space；
2) instrument parameter adjustment is easy, can to environmental cabinet temperature, induction heating speed, surface of test piece induction heating temperature,
The parameters such as data acquiring frequency are adjusted, and are provided with control cabinet, and control is simple, can accurately control environment box temperature degree, sense
Heating speed, surface of test piece induction heating temperature are answered, the bituminous pavement accurately simulated under certain live use condition is different
Bituminous pavement volume change rule in induction heating repair process；
3) instrument be provided with environmental cabinet, wind-heat temperature regulating device, temperature sensor B, temperature sensor C, temperature sensor D,
Temperature sensor E forms the Atmospheric Condition on specific road surface, simulates the big compression ring of bituminous pavement induction recovery project
Border；
4) instrument is provided with temperature sensor A in surface of test piece, and temperature sensor A is connect with controller, tests
Surface of test piece temperature can be accurately acquired in journey, and the temperature of surface of test piece constant is dripping after controlling induction heating for a period of time
Green softening point temperature；
5) instrument is provided with camera positioning device, camera, scale, image collecting device control system, image analysis
Device, they cooperate under the connection of controller, realize the precise measurement of bitumen mixture specimen volume change situation
With calculating；
6) using effect is good and practical value is high, good appearance and environmental protection, largely facilitates induction heating front and back
The measurement of bitumen mixture specimen volume change situation, and analogue inductive heating process is easily controllable, has integration operation
The advantages that facilitating.
Detailed description of the invention
Fig. 1: instrumentation diagram of the present invention；Fig. 2: electromagnetic launch system schematic diagram；Fig. 3: controller circuitry principle is shown
It is intended to；1- electromagnetic launch system；The scalable conducting connecting bar of 2-；3- temperature sensor A；4- temperature sensor B；5- temperature sensing
Device C；6- temperature sensor D；7- temperature sensor E；8- camera positioning device；9- camera；10- scale；11- test specimen；12-
Patch；13- fixed link；14- interface；15- screen；16- control keyboard；17- alternating current generator；18- image analysis apparatus；19-
Wind-heat temperature regulating device；20- connection bar controlling；21- image collecting device control system；22- control cabinet；23- controller；
24- environmental cabinet；25- telescopic rod.
Specific embodiment
Bitumen mixture specimen volume becomes when below with reference to specific embodiment to measurement induction heating of the present invention
The instrument and method of change are described further, but the scope of protection of the present invention is not limited thereto.
Embodiment 1
It is a kind of measurement induction heating when bitumen mixture specimen volume change instrument, the instrument include be divided into left side and
Right side, left side are environmental cabinet 24, and right hand top is control cabinet 22；It is alternating current generator 17 below control cabinet 22；Alternating current generator
17 lower left is followed successively by wind-heat temperature regulating device 19 and connection bar controlling 20 down, and lower right is followed successively by image analysis down
Device 18 and image collecting device control system 21；It is equipped with electromagnetic launch system 1 at top in environmental cabinet 24, two sidewalls are respectively carved with
Scale 10, center are placed with test specimen 11, and 11 upper and lower sides of test specimen are equipped with camera positioning device 8；The both ends of electromagnetic launch system 1 pass through
The two sidewalls horizontal connection of two scalable conducting connecting bars 2 and environmental cabinet 24, also connect with alternating current generator 17；Electromagnetism
Emitter 1 moves horizontally under the guidance of two scalable conducting connecting bars 2；Scalable conducting connecting bar 2 and connecting rod
Control device 20 connects；There are two camera positioning devices 8, and cross section is arc-shaped, and raised sides pass through telescopic rod 25
It is connect with the top surface of environmental cabinet 24 or bottom surface；There are four the installations of 8 concave side of camera positioning device by the camera shooting of arc surface equal part
First 9；180 ° of the direction of camera 9 is adjustable；The length for adjusting telescopic rod 25 is adjustable camera positioning device 8 and camera 9
Height；Camera positioning device 8, camera 9 and telescopic rod 25 are connect with image collecting device control system 21；Fixed link
There are two 13,11 two sides of test specimen are located at, test specimen 11 can be fixed on to the centre of environmental cabinet 24；The one of every fixed link 13
End is connect by patch 12 with test specimen 11, and the other end is connect with the interface 14 of 24 side wall of environmental cabinet；Up and down the two of two rows of scales 10
Hold temperature sensor there are four setting altogether, respectively temperature sensor B4, temperature sensor C5, temperature sensor D6 and temperature sensing
Device E7；Temperature sensor A3 is located at surface of test piece position；Five temperature sensors are connect with wind-heat temperature regulating device 19；Control cabinet 22
Including the screen 15 and control keyboard 16 on cabinet, the intracorporal electronic circuit board of case and cabinet lateral wall；On electronic circuit board
Controller 23 is installed；Five temperature sensors, screen 15, control keyboard 16, alternating current generator 17, image analysis apparatus 18,
Connection bar controlling 20 and image collecting device control system 21 are connect with controller 23.
The method of bitumen mixture specimen volume change, the method specifically walk when measurement induction heating of the present invention
Suddenly are as follows:
1) two patches 12 are fixed with epoxy glue in the two sides along test specimen diameter, is fixed in surface of test piece using epoxy glue
Temperature sensor A3, test specimen 11 at normal temperature health for 24 hours so that epoxy glue completes solidification, two patches 12 and temperature sensor
A3 is firmly cohered in surface of test piece；
2) two patches 12 on test specimen 11 are connect with two fixed links 13 respectively, by the other end of two fixed links with
Two interfaces 14 connect, so that test specimen 11 is fixed in environmental cabinet 24；
3) length of two telescopic rods 25 adjusted by image collecting device control system 21, adjust eight cameras 9
Direction, guarantee that eight cameras 9 can comprehensively acquire the comprehensive image of test specimen 11；
4) set environment box temperature degree, the temperature of environmental cabinet use the live atmosphere of asphalt induction heating recovery project
The test specimen 11 fixed is kept the temperature 5h by temperature in environmental cabinet；
5) by image analysis apparatus 18, and by the structure chart of the scale 10 of 24 two sides of environmental cabinet and environmental cabinet, by eight
Eight views that a camera 9 acquires do 3 D spliced；By the volume of 18 calculation testing piece 11 of image analysis apparatus；
6) after test specimen volume calculates before induction heating, alternating current generator 17 is opened, is generated in electromagnetic launch system 1
The electromagnetic wave signal of fixing intensity, and by two scalable conducting connecting bars 2 and connection bar controlling 20, allow electromagnetism to send out
Injection device 1 does horizontally uniform motion；This is equivalent to test specimen 11 and does cutting magnetic induction line movement in magnetic field, at this moment if test specimen
Adding in 11 has conducting medium, will generate electric current inside test specimen 11, to heat up, accelerates to repair existing damage；
7) with the heating of surface of test piece, according to the temperature conditions that temperature sensor A3 is transmitted, controller acquires sense in real time
Answer heating time, surface of test piece temperature；Image collecting device control system 21 acquires 11 image of test specimen in real time, and passes through image point
Analysis apparatus 18, and by the structure chart of the scale 10 of 24 two sides of environmental cabinet and environmental cabinet, eight views that eight cameras 9 are acquired
Figure does 3 D spliced；By the volume of the real-time calculation testing piece 11 of image analysis apparatus 18；Finally obtain induction heating time, examination
Part surface temperature, test specimen volume are in the test data of one；During test, when surface of test piece temperature is greater than asphalt softening point temperature
When spending, equipment automatically can be by the collaborative work of alternating current generator 17, temperature sensor A3 and controller 23 by surface of test piece
Temperature is constant in asphalt softening point temperature.
Claims (1)
1. a kind of method of bitumen mixture specimen volume change when measurement induction heating, which is characterized in that this method is using survey
The instrument of bitumen mixture specimen volume change measures when measuring induction heating, and the instrument is divided into left and right side two
Point, left side is environmental cabinet (24), and right hand top is control cabinet (22)；It is below control cabinet (22) alternating current generator (17)；Exchange
The lower left of generator (17) be followed successively by down wind-heat temperature regulating device (19) and connection bar controlling (20), lower right down according to
Secondary is image analysis apparatus (18) and image collecting device control system (21)；Electromagnetic Launching is equipped at top in environmental cabinet (24)
Device (1), two sidewalls are respectively carved with scale (10), and center is placed with test specimen (11), and test specimen (11) upper and lower sides are equipped with camera positioning dress
Set (8)；The both ends of electromagnetic launch system (1) pass through the two sidewalls water of two scalable conducting connecting bars (2) and environmental cabinet (24)
Flushconnection is also connect with alternating current generator (17)；Electromagnetic launch system (1) draws at two scalable conducting connecting bar (2)
It leads down, moves horizontally；Scalable conducting connecting bar (2) connects with bar controlling (20) are connect；Camera positioning device (8)
There are two, cross section is arc-shaped, and raised sides are connect by telescopic rod (25) with the top surface of environmental cabinet (24) or bottom surface；
There are four the installations of camera positioning device (8) concave side by the camera (9) of arc surface equal part；180 ° of the direction of camera (9)
It is adjustable；The length for adjusting telescopic rod (25) is adjustable the height of camera positioning device (8) Yu camera (9)；Camera is fixed
Position device (8), camera (9) and telescopic rod (25) are connect with image collecting device control system (21)；Fixed link (13) has
Two, test specimen (11) two sides are located at, test specimen (11) can be fixed on to the centre of environmental cabinet (24)；Every fixed link (13)
One end is connect by patch (12) with test specimen (11), and the other end is connect with the interface (14) of environmental cabinet (24) side wall；Two rows of scales
(10) upper and lower ends are set altogether there are four temperature sensor, and respectively temperature sensor B (4), temperature sensor C (5), temperature pass
Sensor D (6) and temperature sensor E (7)；Temperature sensor A (3) is located at surface of test piece position；Five temperature sensors and wind-heat
Temperature regulating device (19) connection；Control cabinet (22) includes the screen on cabinet, the intracorporal electronic circuit board of case and cabinet lateral wall
(15) and control keyboard (16)；Controller (23) are installed on electronic circuit board；Five temperature sensors, screen (15), control
Keyboard (16), alternating current generator (17), image analysis apparatus (18), connection bar controlling (20) and image collecting device control
System (21) is connect with controller (23)；
The method specific steps are as follows:
1) two patches (12) are fixed with epoxy glue in the two sides along test specimen diameter, it is solid using epoxy glue on test specimen (11) surface
Determine temperature sensor A (3), test specimen (11) at normal temperature health for 24 hours so that epoxy glue completes solidification, two patches (12) and temperature
Degree sensors A (3) is firmly cohered in surface of test piece；
2) two patches (12) on test specimen (11) are connect with two fixed links (13) respectively, by the other end of two fixed links
It is connect with two interfaces (14), so that test specimen (11) is fixed in environmental cabinet (24)；
3) length of two telescopic rods (25) is adjusted by image collecting device control system (21), adjust eight cameras
(9) direction guarantees that eight cameras (9) can comprehensively acquire the comprehensive image of test specimen (11)；
4) set environment box temperature degree, the temperature of environmental cabinet use the big temperature in scene of asphalt induction heating recovery project
Degree, keeps the temperature 5h for the test specimen fixed (11) in environmental cabinet；
5) pass through image analysis apparatus (18), and the structure chart of scale (10) and environmental cabinet by environmental cabinet (24) two sides, it will
Eight views of eight cameras (9) acquisition do 3 D spliced；By the volume of image analysis apparatus (18) calculation testing piece (11)；
6) it after test specimen volume calculates before induction heating, opens alternating current generator (17), is generated in electromagnetic launch system (1) solid
Determine the electromagnetic wave signal of intensity, and by two scalable conducting connecting bars (2) and connection bar controlling (20), electromagnetism is allowed to send out
Injection device (1) does horizontally uniform motion；This is equivalent to test specimen (11) and does cutting magnetic induction line movement in magnetic field, at this moment if
Adding in test specimen (11) has conducting medium, will generate electric current inside test specimen (11), to heat up, accelerates to repair existing damage
Wound；
7) with the heating of surface of test piece, according to the temperature conditions that temperature sensor A (3) are transmitted, controller acquires induction in real time
Heating time, surface of test piece temperature；Image collecting device control system (21) acquires test specimen (11) image in real time, and passes through image
Analytical equipment (18), and the structure chart of scale (10) and environmental cabinet by environmental cabinet (24) two sides, eight cameras (9) are adopted
Eight views of collection do 3 D spliced；By the volume of the real-time calculation testing piece (11) of image analysis apparatus (18)；Finally obtain sense
Answer heating time, surface of test piece temperature, test specimen volume in the test data of one；During test, when surface of test piece temperature is big
When asphalt softening point temperature, equipment can pass through alternating current generator (17), temperature sensor A (3) and controller (23) automatically
It cooperates the temperature of surface of test piece is constant in asphalt softening point temperature.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610628468.4A CN106248723B (en) | 2016-08-03 | 2016-08-03 | The method of bitumen mixture specimen volume change when measuring induction heating |
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| CN201610628468.4A CN106248723B (en) | 2016-08-03 | 2016-08-03 | The method of bitumen mixture specimen volume change when measuring induction heating |
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| CN106248723B true CN106248723B (en) | 2019-07-12 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108760795A (en) * | 2018-08-22 | 2018-11-06 | 沈阳建筑大学 | A kind of device measuring asphalt softening point using air mode of heating |
| CN111272069B (en) * | 2020-03-04 | 2020-11-24 | 清华大学 | Device and method for measuring volume change of rubber under different vulcanization reaction degrees |
| CN116297147B (en) * | 2023-05-15 | 2023-08-01 | 深圳大学 | Rubber aging test device and test method based on different environments |
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