CN106092866A - The multifactor ageing oven of asphalt material - Google Patents
The multifactor ageing oven of asphalt material Download PDFInfo
- Publication number
- CN106092866A CN106092866A CN201610363560.2A CN201610363560A CN106092866A CN 106092866 A CN106092866 A CN 106092866A CN 201610363560 A CN201610363560 A CN 201610363560A CN 106092866 A CN106092866 A CN 106092866A
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- China
- Prior art keywords
- ageing oven
- asphalt material
- multifactor
- slab body
- room
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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
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/002—Test chambers
Abstract
The multifactor ageing oven of asphalt material, the present invention relates to a kind of device accelerating asphalt material degradation, and it simulates, for the aging equipment solving existing asphalt material, the problem that factor is more single.Ageing oven of the present invention comprises Ultraluminescence fluorescent tube, spray header, adds heat pipe, rotating disk, electric rotating machine, aerator, water tank, separation slab body and electric control box, ageing oven is divided into degradation room and control room by separating slab body, spray header and Ultraluminescence fluorescent tube it is provided with on top cover, rotating disk is by electric rotating machine control, slab body is hollow structure, lower face at slab body has backflow water hole, backflow water hole, by water pipe and water tank and spray header composition water circulation system, is additionally provided with electric control box and aerator in control room.The ageing oven of the present invention can the factor comprehensive function to asphalt material such as simulated light, heat, water, it is achieved asphalt material degradation under various factors coupling state.
Description
Technical field
The present invention relates to a kind of device accelerating asphalt material degradation.
Background technology
Bituminous paving refers to mix various types of road surfaces of bitumen for road use material making in mineral nitrogen material.Due to throughout the year
Being under natural environment, natural environment road pavement performance, serviceability have vital impact.Wherein ageing of asphalt is shadow
Ring the key factor of Service Performance of Asphalt Pavement.For Colophonium, its " aging " refer to Colophonium after oil plant is refined out,
During storing, transport, construct and using, owing to exposing in atmosphere for a long time, be such as heated in environmental factors, oxygen, sun
Under the effect of light and water, a series of change occurring, as volatilized, aoxidize, being polymerized, or even Colophonium internal structure changes, simultaneously
There is qualitative change, cause the process that pavement performance deteriorates.
The asphalt material the most deep aging existing understanding under the factor such as oxygen, heat, the most widely used be exactly
The Super-pave technology that SHRP plan is released, uses rotating thin film heat run (RTFOT) and thin film heating test (TFOT)
Simulation Colophonium short term thermal oxygen aging in mix and paving process, uses pressure vessel ageing device (PAV) simulation Colophonium in road
Long-term ageing during the use of road.Owing to the experimental condition of PAV aging techniques differs with the actual environment residing for bituminous paving
Relatively big, and do not account for the factor such as light and water, therefore, it there is also some to the simulation effect of asphalt material long-term ageing and strives
View.At present, in all asphalt material degradation instruments, almost without considering under the multifactor effects such as light, heat, water, oxygen
The equipment of simulation ageing of asphalt.Therefore, want to carry out asphalt material problem of aging deeply comprehensively studying, with regard to urgent need
The test method of a kind of more effective simulated roadway Colophonium long-term ageing, and research road drip the most further are proposed
Blue or green aging-resistant effective way, strengthens the durability of bituminous paving, improves the use quality of bituminous paving, extends the pavement usage longevity
Life.
Summary of the invention
The aging equipment that the invention aims to solve existing asphalt material simulates the problem that factor is more single, and
There is provided a kind of and be capable of asphalt material asphalt material ageing test apparatus under the various factors coupling states such as light, heat, water.
The multifactor ageing oven of asphalt material of the present invention comprises Ultraluminescence fluorescent tube, spray header, add heat pipe, turn
Dish, electric rotating machine, aerator, water tank, separation slab body and electric control box, separate slab body and be positioned at the middle part of ageing oven
And be arranged in parallel with the box plate of ageing oven, ageing oven by separate slab body be divided into top degradation room and
The control room of bottom, is provided with a spray header and the Ultraluminescence of multiple parallel interval arrangement in the top cover of ageing oven
Fluorescent tube, is provided with multiple spray head on spray header, is positioned at the rotating disk in the middle part of degradation room by rotating shaft and electric rotating machine
Being connected, be provided with and add heat pipe in the left tank wall and right tank wall of degradation room, separating slab body is hollow structure, is separating
The upper face of slab body has air holes and multiple mouth of a river, has a backflow water hole, recirculation water at the lower face separating slab body
Hole is connected with the inlet opening of the water tank being positioned in control room by water inlet pipe, and the apopore of water tank passes through outlet pipe and spray header
Being connected, be provided with water pump in outlet pipe, the air holes separating slab body upper face is then passed through airduct and is positioned in control room
Aerator is connected, and is provided with control panel before control room on boxboard, and control panel is connected with electric control box by electric wire,
Electric control box rear portion connects the outside having attaching plug, attaching plug to extend to ageing oven by electric wire.
The multifactor ageing oven of asphalt material of the present invention can in simulating natural environment the factor such as light, heat, water to Colophonium
The comprehensive function of material, it is achieved aging under the various factors coupling states such as light, heat, water of asphalt material, strong by controlling illumination
Degree, the temperature inside the box, automatic spray, ventilated environment simulate full weather conditions, for asphalt material or the weatherability of asphalt
Environmental simulation and accelerated test are provided.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the multifactor ageing oven of asphalt material of the present invention；
Fig. 2 is the structural representation that top cover is omitted in the multifactor ageing oven of asphalt material；
Fig. 3 is the structural representation controlling indoor water circulation；
Fig. 4 is the structural representation controlling indoor blower.
Detailed description of the invention
Detailed description of the invention one: comprise Ultraluminescence fluorescent tube in the multifactor ageing oven of present embodiment asphalt material
(1), spray header (2), add heat pipe (3), rotating disk (4), electric rotating machine (5), aerator (6), water tank (7), separate slab body (8)
With electric control box (9), separate slab body (8) and be positioned at the middle part of ageing oven and parallel with the box plate of ageing oven set
Putting, ageing oven is divided into degradation room and the control room of bottom on top by separating slab body (8), ageing oven
A spray header (2) and the Ultraluminescence fluorescent tube (1) of multiple parallel interval arrangement it is provided with, in spray header (2) in top cover
On be provided with multiple spray head (2-1), be positioned at the rotating disk in the middle part of degradation room (4) and be connected with electric rotating machine (5) by rotating shaft,
Being provided with in the left tank wall and right tank wall of degradation room and add heat pipe (3), separating slab body (8) is hollow structure, is dividing
Upper face every slab body (8) has air holes (8-1) and multiple mouth of a river (8-2), has one at the lower face separating slab body (8)
Individual backflow water hole, backflow water hole is connected with the inlet opening of the water tank (7) being positioned in control room by water inlet pipe (13), water tank (7)
Apopore be connected with spray header (2) by outlet pipe (12), outlet pipe (12) is provided with water pump (11), and separates thickness
The air holes (8-1) of plate body (8) upper face is then connected, before control room with the aerator (6) being positioned in control room by airduct
Being provided with control panel (9-1) on boxboard, control panel (9-1) is connected with electric control box (9) by electric wire, electric control box
(9) rear portion is connected by electric wire has attaching plug (9-2), attaching plug (9-2) to extend to the outside of ageing oven.
Present embodiment by electric control box to Ultraluminescence fluorescent tube, feeding spraying pump, add heat pipe, electric rotating machine and air blast
Machine carries out Automated condtrol, utilizes the control panel in front panel to carry out parameters number and shows.To be many by separating slab body
Factor ageing proof box is separated into degradation room and the control room of bottom on top, and electric rotating machine controls rotating disk by rotating shaft and revolves
Turning, rotating disk be arranged in parallel with bottom, and rotating shaft is through separating slab body.
Present embodiment simulation asphalt material degradation condition, it is achieved Colophonium is at single factor test or multifactor such as light, heat, water
Degradation under coupling, in order to more in-depth study and analysis asphalt material ageing properties.
Detailed description of the invention two: present embodiment air holes 8-1 unlike detailed description of the invention one is positioned at separation slab
The middle part of body 8 upper face.
Detailed description of the invention three: present embodiment is the top cover of ageing oven unlike detailed description of the invention one or two
Inside being provided with the Ultraluminescence fluorescent tube 1 of 6 parallel interval, rated power is 60w.
Solar spectrum is a kind of continuous spectrum, arrives the ultraviolet spectra of earth surface by atmosphere after being partially absorbed
In the range of wavelength is mainly distributed on 290～400nm.According to analysis and research, the main inducing of Colophonium photoaging is that ultraviolet light causes.
Therefore, present embodiment uses Philip UVA-340 series fluorescent tube as light source, and it is to intend the most with solar ultraviolet spectrum at present
A light source closed, can preferably simulated solar ultraviolet spectra distribution.Selecting Philip UV series rated power is the ultraviolet of 60w
Fluorescent tube is as light source.
Detailed description of the invention four: present embodiment spray head 2-1 unlike one of detailed description of the invention one to three adopts
It is the atomizer of 0.8mm with bore.
Rainwater is also that bituminous paving destroys one of topmost factor.Water plays to pass during asphalt material is aging
Important effect, the washing away and corrode of water makes the surface layer composition of ageing of asphalt the most weakened, makes the aging of Colophonium deepen continuously,
Accelerate the aging of Colophonium, make asphalt material serviceability be gradually lowered.
Present embodiment use bore be the atomizer of 0.8mm as spray equipment, be distributed in the angle of inclination of 45 °
The top of inner cabinet.
Spray equipment and rainfall conversion:
Rainfall refers to drop to the water depth in ground certain point or a certain unit are within a certain period of time,
Calculate with millimeter.Arranging 6 shower nozzles in present embodiment chamber altogether, each shower nozzle spray flux per minute is 480mL.According to rainfall
Amount definition, in the case of shower nozzle standard-sized sheet, in a minutes, rainfall depth H is calculated as follows:
Under normal circumstances, the light rain generally said, moderate rain, heavy rain, heavy rain etc., typically with daily rainfall measurement.Wherein light rain
In a few days rainfall is below 10 millimeters；Moderate rain daily rainfall is 10～24.9 millimeters；Heavy rain rainfall is 25～49.9 millimeters；Cruelly
Rain rainfall is 50～99.9 millimeters；Torrential rain rainfall is 100～250 millimeters；Extra torrential rain rainfall 250 millimeters with
On.Therefore, to be scaled the horizontal corresponding relation of equal rainfall as follows for ageing of asphalt proof box spray time.
Table 2 shower nozzle spray time correspondence rainfall level
The water tank that the moisture that present embodiment is sprayed is recovered in control room by the reflux of aging chamber bottom, reaches
To the purpose recycled.
Detailed description of the invention five: present embodiment adds heat pipe 3 unlike one of detailed description of the invention one to four and uses U
Type Titanium Alloy is heated electrothermal tube.
The temperature regulating range of present embodiment electrothermal tube is 20～80 DEG C.
Detailed description of the invention six: present embodiment unlike one of detailed description of the invention one to five in degradation room
Inside being additionally provided with 2 temperature sensors, one of them temperature sensor is between the Ultraluminescence fluorescent tube at interval, and another is warm
Degree sensor is positioned on the side box wall of casing.
2 temperature sensors described in present embodiment, air themperature in a main monitoring ageing oven, another is close
Ultraluminescence fluorescent tube, the main temperature monitoring fluorescent tube, prevent too high generation of lamp hole temperature from bursting.In addition ageing oven arranges superhigh temperature
Protection system, if case indoor temperature is more than 95 DEG C, casing just automatically powers off, to prevent from causing danger.In process of the test, use 70
DEG C as test temperature, this is the temperature close with bituminous paving road in the summer table highest temperature.
Detailed description of the invention seven: present embodiment unlike one of detailed description of the invention one to six in degradation room
Inside it is provided with the rotating disk 4 of two parallel arranged.
Detailed description of the invention eight: present embodiment electric rotating machine 5 unlike one of detailed description of the invention one to eight has
Having gear regulator, the rotating speed controlling rotating disk is 1～60 rev/min.
Detailed description of the invention nine: present embodiment is electric control box 9 unlike one of detailed description of the invention one to eight
The left side being arranged in control room, water tank 7 is arranged on the right side in control room.
Detailed description of the invention ten: present embodiment unlike one of detailed description of the invention one to nine in degradation room
Front tank wall on have hatch door 10.
Present embodiment is easy to picking and placeing of asphalt material sample by the setting of hatch door.
Embodiment one: comprise Ultraluminescence fluorescent tube 1, spray header in the multifactor ageing oven of the present embodiment asphalt material
2, add heat pipe 3, rotating disk 4, electric rotating machine 5, aerator 6, water tank 7, separate slab body 8 and electric control box 9, separate slab body 8
Being positioned at the middle part of ageing oven and be arranged in parallel with the box plate of ageing oven, ageing oven is by separating slab body 8
It is divided into degradation room and the control room of bottom on top, is provided with a spray header 2 in the top cover of ageing oven with many
The Ultraluminescence fluorescent tube 1 of individual parallel interval arrangement, is provided with multiple spray head 2-1 on spray header 2, is positioned at degradation room
Two rotating disks 4 at middle part are connected with electric rotating machine 5 by rotating shaft, and two rotating disk 4 parallel arranged, at the left tank wall of degradation room
Adding heat pipe 3 with being provided with in right tank wall, separating slab body 8 is hollow structure, has air holes at the upper face separating slab body 8
8-1 and multiple mouth of a river 8-2, has a backflow water hole at the lower face separating slab body 8, backflow water hole by water inlet pipe 13 with
The inlet opening of the water tank 7 being positioned in control room is connected, and the apopore of water tank 7 is connected with spray header 2 by outlet pipe 12, is going out
Water pipe 12 is provided with water pump 11, separates air holes 8-1 of slab body 8 upper face then by airduct and the drum being positioned in control room
Blower fan 6 is connected, and is provided with control panel 9-1, control panel 9-1 by electric wire and electric control box before control room on boxboard
9 are connected, and electric control box 9 rear portion is connected by electric wire has attaching plug 9-2, attaching plug 9-2 to extend to ageing oven
Outside, has hatch door 10 on the front tank wall of degradation room, is provided with roller at 4 bottom angles of ageing oven.
The length × width × height of the multifactor ageing oven of asphalt material described in the present embodiment be 1400mm × 650mm ×
1200mm, a diameter of 500mm of rotating disk, the distance between rotating disk and fluorescent tube is 0～400mm adjustable.U-shaped titanium alloy is heated electric heating
The height h of pipe is 500mm.6 fluorescent tubes are parallel to be distributed in above chamber, and a length of 1200mm of fluorescent tube, spacing is 70mm, irradiance model
Enclose is 0～50w/m2, by voltage in control switching regulation circuit to control intensity of illumination, and can be tested by ultraviolet radiation meter
With regulation light intensity.Running voltage is 220V exchange.Aerator passes through box bottom inspiration outside air, and (after preheating) is blown into aging
The inside of test chamber, and flow out from the gap between hatch door and casing.Wherein water circulation system is by water tank by water pump
Water extract out, be sprayed at asphalt material sample surfaces by the spray head on spray header, then from separating slab body upper face
The mouth of a river fall into portion in slab body, from the backflow water hole reflow tank of lower face, a portion water pipe is from ageing oven
Left side wall in pass.The present embodiment separates the upper face of slab body and has two air holes, and the airduct in control room is " U "-shaped,
Electric rotating machine is positioned in separation slab body.
The multifactor aging test method of the present embodiment application asphalt material multifactor ageing oven memory is as follows:
One, use special die trial, be poured into the asphalt material sample of test, asphalt material sample is put into casing
Rotating disk on, check aging equipment water tank, supplement water as required；
Two, switch on power, open temperature and control, the temperature in ageing oven is set, experimental target call, open or
Close Ultraluminescence illumination/rainfall simulation system (spray head), if opening ultra violet illumination or rainfall simulation system, at chain of command
Ultra violet illumination strength grade, exposure time and deluge system working time is regulated, to simulate the ultraviolet spoke of particular locality on plate
Penetrate intensity and rainfall grade；
Three, open the hatch door of ageing oven front side wall, the height between regulation rotating disk and Ultraluminescence fluorescent tube, use ultraviolet spoke
Penetrate the radiant intensity of each sample position on measurement preliminary operation dish, be allowed to consistent with the radiation intensity value designed, close hatch door, open rotation
Rotating motor, arranges rotary speed as requested；
Four, according to design requirement, it is simulated degradation in the temperature specified, ultraviolet radiation under rainfall intensity,
Rear closedown power supply, opens ageing oven hatch door, takes out bitumen samples and carries out the inspection of physically-based model.
Claims (10)
1. the multifactor ageing oven of asphalt material, it is characterised in that comprise ultraviolet in the multifactor ageing oven of this asphalt material
Fluorescent tube (1), spray header (2), add heat pipe (3), rotating disk (4), electric rotating machine (5), aerator (6), water tank (7), separate
Slab body (8) and electric control box (9), separate slab body (8) be positioned at ageing oven middle part and with the case of ageing oven
Base plate be arranged in parallel, and ageing oven is divided into degradation room and the control room of bottom on top by separating slab body (8), always
A spray header (2) and the Ultraluminescence fluorescent tube (1) of multiple parallel interval arrangement it is provided with, in spray in changing the top cover of proof box
It is provided with multiple spray head (2-1) on spray pipe (2), is positioned at the rotating disk (4) in the middle part of degradation room by rotating shaft and electric rotating
Machine (5) is connected, and is provided with and adds heat pipe (3) in the left tank wall and right tank wall of degradation room, and separating slab body (8) is hollow
Structure, has air holes (8-1) and multiple mouth of a river (8-2) at the upper face separating slab body (8), under separating slab body (8)
Plate face has a backflow water hole, the backflow water hole inlet opening phase by water inlet pipe (13) with the water tank (7) being positioned in control room
Even, the apopore of water tank (7) is connected with spray header (2) by outlet pipe (12), is provided with water pump in outlet pipe (12)
(11) air holes (8-1), separating slab body (8) upper face is then connected with the aerator (6) being positioned in control room by airduct
Logical, control panel (9-1) is installed on boxboard before control room, control panel (9-1) passes through electric wire and electric control box (9) phase
Even, electric control box (9) rear portion is connected by electric wire has attaching plug (9-2), attaching plug (9-2) to extend to ageing oven
Outside.
The multifactor ageing oven of asphalt material the most according to claim 1, it is characterised in that air holes (8-1) is positioned at separation
The middle part of slab body (8) upper face.
The multifactor ageing oven of asphalt material the most according to claim 1, it is characterised in that the top cover of ageing oven
Inside being provided with the Ultraluminescence fluorescent tube (1) of 6 parallel interval, rated power is 60w.
The multifactor ageing oven of asphalt material the most according to claim 1, it is characterised in that spray head (2-1) uses mouth
Footpath is the atomizer of 0.8mm.
The multifactor ageing oven of asphalt material the most according to claim 1, it is characterised in that add heat pipe (3) and use U-shaped
Titanium alloy is heated electrothermal tube.
The multifactor ageing oven of asphalt material the most according to claim 1, it is characterised in that in degradation indoor also
Being provided with 2 temperature sensors, one of them temperature sensor is between the Ultraluminescence fluorescent tube at interval, and another temperature passes
Sensor is positioned on the side box wall of casing.
The multifactor ageing oven of asphalt material the most according to claim 1, it is characterised in that set in degradation indoor
It is equipped with the rotating disk (4) of two parallel arranged.
The multifactor ageing oven of asphalt material the most according to claim 1, it is characterised in that electric rotating machine (5) has shelves
Position actuator, the rotating speed controlling rotating disk is 1～60 rev/min.
The multifactor ageing oven of asphalt material the most according to claim 1, it is characterised in that electric control box (9) is arranged
Left side in control room, the right side that water tank (7) is arranged in control room.
The multifactor ageing oven of asphalt material the most according to claim 1, it is characterised in that before degradation room
Hatch door (10) is had on tank wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610363560.2A CN106092866A (en) | 2016-05-27 | 2016-05-27 | The multifactor ageing oven of asphalt material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610363560.2A CN106092866A (en) | 2016-05-27 | 2016-05-27 | The multifactor ageing oven of asphalt material |
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| Publication Number | Publication Date |
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| CN106092866A true CN106092866A (en) | 2016-11-09 |
Family
ID=57231004
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| CN201610363560.2A Pending CN106092866A (en) | 2016-05-27 | 2016-05-27 | The multifactor ageing oven of asphalt material |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108318414A (en) * | 2018-04-04 | 2018-07-24 | 长安大学 | A kind of ultraviolet ageing environmental cabinet of simulation optical and thermal-water coincidence effect |
| CN108918401A (en) * | 2018-05-21 | 2018-11-30 | 安徽双红机械制造有限公司 | A kind of automotive door hinge corrosion resistance detection device |
| CN110608995A (en) * | 2019-10-31 | 2019-12-24 | 华南理工大学 | O-shaped sealing ring multi-factor aging test platform and aging test method |
| CN111999238A (en) * | 2020-06-05 | 2020-11-27 | 河海大学 | Indoor simulation asphalt mixture aging method |
| CN112683767A (en) * | 2020-12-24 | 2021-04-20 | 南京林业大学 | Asphalt indoor aging method under heat-light-water coupling circulation effect |
| CN112798517A (en) * | 2021-02-01 | 2021-05-14 | 北京科技大学 | Accelerated aging test system for pavement structural material |
| CN114235670A (en) * | 2021-11-29 | 2022-03-25 | 郑州大学 | Asphalt ultraviolet aging test method with control group |
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| CN114235670A (en) * | 2021-11-29 | 2022-03-25 | 郑州大学 | Asphalt ultraviolet aging test method with control group |
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Application publication date: 20161109 |