CN202057574U - Device for long-time aging tests of asphalt and asphalt mixture - Google Patents
Device for long-time aging tests of asphalt and asphalt mixture Download PDFInfo
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- CN202057574U CN202057574U CN2011201487435U CN201120148743U CN202057574U CN 202057574 U CN202057574 U CN 202057574U CN 2011201487435 U CN2011201487435 U CN 2011201487435U CN 201120148743 U CN201120148743 U CN 201120148743U CN 202057574 U CN202057574 U CN 202057574U
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Abstract
The utility model discloses a device for long-time aging tests of asphalt and asphalt mixture, which mainly comprises a specimen laboratory, a reflection type black light high-voltage mercury lamp, a spraying head, an ultraviolet radiator, an electric furnace and a specimen test table, wherein the reflection type black light high-voltage mercury lamp, the spraying head, the ultraviolet radiator, the electric furnace and the specimen test table are arranged in the specimen laboratory, the reflection type black light high-voltage mercury lamp, the spraying head and the ultraviolet radiator are all arranged on the top of the specimen laboratory, and the specimen test table is arranged at the bottom of the specimen laboratory and is opposite to the reflection type black light high-voltage mercury lamp and the spraying head. The device can realize the goal of simulating the natural influence factors such as air, sunlight, temperature and water drop received by the asphalt and the asphalt mixture under the natural condition in an artificially made environment, and in addition, the temperature, the air and the ultraviolet radiation intensity are artificially enhanced so that the long-time aging test results of the asphalt and the asphalt mixture can be obtained in a short time.
Description
Technical field
The utility model relates to the highway material property and detects test unit, specifically discloses a kind of device that is used for pitch and asphalt long-term aging test.
Background technology
Asphalt material belongs to organic binder, be exposed to nature and unavoidably be subjected to Effect of Environmental, under effects such as illumination, oxygen, temperature and precipitation, As time goes on, its inner each component concentration changes, and the viscosity that is usually expressed as pitch increases, ductility reduces, the anti-shrinkage cracking performance of low temperature descends.At present, indoor common employing Thin Film Oven Test TFOT (TFOT) and rotating thin film baking oven test (RTFOT) simulate pitch the short ageing process, adopt the long-term ageing process of pressure aging test (PAV) simulation pitch to estimate the usability of pitch.
The ageing-resistant performance of asphalt, be meant that bituminous pavement bears the combined action of environmental factors such as traffic, weather during use, the asphalt usability keeps the ability of stable or less generation mass change, usually be also referred to as ageing resistance, the weather of indication mainly is meant the influence of air (oxygen), sunlight (ultraviolet ray), temperature and precipitation here.Similar to pitch, the ageing process of asphalt also is divided into two stages, i.e. short ageing and long-term ageing.Short ageing characterizes wearing out that bituminous pavement construction period asphalt causes because of being heated, and starts from the batching plant, end at the bituminous pavement compacting after temperature reduce to natural temperature; Long-term ageing characterize asphalt in the bituminous pavement operating period because of the combined action of illumination, temperature, precipitation and traffic loading cause aging, start from ending at the road surface service performance and descending, until the requirement that can not satisfy driving after the road surface builds up.In shop experiment, adopt short-term baking oven for heating method (STOA), promptly after regulation is mixed and stirred the temperature uniform mixing, loose compound is placed heating 4h ± 5min in the forced draft baking oven of (135 ± 1) ℃, with this be used for simulating loose compound mix and stir, store, being heated and volatilizing and the effect of oxidation in transportation and the decking and rolling process, promptly asphalt is in the short ageing effect of construction stage; Adopt long-term baking oven for heating method (LTOA), being about to test specimen through the short ageing aftershaping places in the forced draft baking oven with the temperature heating of (85 ± 1) ℃ 5 days, be subjected to lasting oxidation effect under vehicle-mounted and the environmental factor effect with this bituminous pavement that is used for simulating roller-compaction, promptly bituminous pavement is in the long-term ageing effect of operational phase.
Temperature, two influence factors of air have only been considered in the LTOA process of the test that existing pressure wears out and asphalt long-term ageing PAV, long-term baking oven for heating wear out, and for sunlight (ultraviolet ray) and these two influence factors of precipitation, the pressure aging test is not taken it into account, yet for pitch that belongs to organic binder and asphalt, ultraviolet ray and these influence factors of precipitation directly influence the ageing properties of pitch and asphalt, and then affect the evaluation result of test.In addition, there is no the device that above-mentioned experimental factor is arranged that possesses that uses in the availability test process in the prior art.
Summary of the invention
Defective or deficiency at prior art, the purpose of this utility model is to provide a kind of device that is used for pitch and asphalt long-term aging test, utilize this device, can in the artificial environment of making, influence the factor that pitch and pitch close the material performance under the simulating natural condition, as air (oxygen), sunlight (ultraviolet ray), temperature and precipitation, and can artificially strengthen temperature, air and ultraviolet radiation intensity (10～15 times), so that obtain scientific and reasonable pitch and asphalt long-term aging test result in the short period of time.
For realizing above-mentioned technical assignment, the utility model is taked following technical solution:
A kind of device that is used for pitch and asphalt long-term aging test is characterized in that this device comprises: the specimen test chamber, advance/the gas bleed valve controller, water pump, water tank; Be installed on specimen test indoor at least one reflection-type black light high-pressure sodium lamp, spray head, ultraviolet radiation meter, pressure transducer, temperature sensor, electric furnace and sample stage; And be installed on gas admittance valve and gas bleed valve on the specimen test locular wall; And the timer, light source control panel, temperature control panel, pressure control face and the spray control panel that are installed on the specimen test outdoor; And the standard compressed air bottle that is positioned at the specimen test outdoor, described reflection-type black light high-pressure sodium lamp, spray head and ultraviolet radiation meter all are installed on the top of specimen test chamber, described sample stage is installed on the bottom of specimen test chamber and relative with reflection-type black light high-pressure sodium lamp and spray head, described reflection-type black light high-pressure sodium lamp is connected with the light source control panel, described ultraviolet radiation meter is connected with the light source control panel, described water pump is installed on the water tank, described water pump is connected with the spray control panel, described spray head is connected with water pump, described pressure transducer is connected with the pressure control panel, described temperature sensor is connected with the temperature control panel, described electric furnace is connected with the temperature control panel, described gas admittance valve is connected with the standard compressed air bottle, described gas admittance valve with advance/the gas bleed valve controller is connected, described gas bleed valve with advance/the gas bleed valve controller is connected, describedly advance/the gas bleed valve controller is connected described light source control panel with the pressure control panel, the pressure control panel all is connected with timer with the spray control panel.
Other technologies of the present utility model are characterized as:
Described device also comprises lifter plate, and this lifter plate is installed on top, specimen test chamber, and described reflection-type black light high-pressure sodium lamp, spray head and ultraviolet radiation meter all are installed on the lifter plate.
Described lifter plate is provided with the lifting control knob.
Described timer, light source control panel, temperature control panel, pressure control face and spray control panel all are installed on the outer wall of specimen test chamber.
Described water tank is installed on the specimen test chamber interior, and is installed on bottom, specimen test chamber.
Describedly advance/the gas bleed valve controller is installed on the specimen test chamber interior, and is installed on bottom, specimen test chamber.
Described reflection-type black light high-pressure sodium lamp is connected with the light source control panel by the light source control line, described ultraviolet radiation meter is connected with the light source control panel by the light source control line, described spray head is connected with water pump by liquid conduits, described water pump is connected with the spray control panel by the spray control line, described pressure transducer is connected with the pressure control panel by the pressure transducer line, described temperature sensor is connected with the temperature control panel by the temperature sensor line, described electric furnace is connected with the temperature control panel by the heating control line, described gas admittance valve is connected with the standard compressed air bottle by gas conduit, described gas admittance valve by advance/lose heart control line and advance/the gas bleed valve controller is connected, described gas bleed valve by advance/lose heart control line and advance/the gas bleed valve controller is connected, describedly advance/the gas bleed valve controller is connected with the pressure control panel by pressure control line.
Described device comprises four reflection-type black light high-pressure sodium lamps.
Described reflection-type black light high-pressure sodium lamp is a GHF125W-03 type reflection-type black light high-pressure sodium lamp.
Described ultraviolet irradiation is counted UA-A type ultraviolet radiation meter.
The utility model can bring following technique effect:
(1) this device can be implemented in the environment of artificial manufacturing pitch and the suffered natural influence factor of asphalt under the simulating natural condition, as air (oxygen), sunlight (ultraviolet ray), temperature and precipitation, and artificially strengthen temperature, air and ultraviolet radiation intensity (10～15 times) are so that obtain pitch and asphalt long-term aging test result in the short period of time.
(2) this device has comprised temperature control system, control pressurer system, uitraviolet intensity control system and time controller, tests easier and efficient.
(3) stable, the reliable test result of this device performance, degree of accuracy height, good reproducibility, easy and simple to handle, quick.
Description of drawings
Fig. 1 is an apparatus structure synoptic diagram of the present utility model.
Each code representative among the figure: 1-reflection-type black light high-pressure sodium lamp, the 2-ultraviolet radiation meter, 3-light source control line, the 4-temperature sensor, 5-temperature sensor line, the 6-electric furnace, 7-heats control line, the 8-pressure transducer, 9-sample laboratory, 10-pressure transducer line, 11-pressure control line, 12-advances/the gas bleed valve controller, the 13-gas admittance valve, the 14-gas bleed valve, 15-standard compressed air bottle, the 16-water pump, the 17-water tank, the 18-spray head, the 19-liquid conduits, the 20-timer, the 21-lifter plate, 22-lifting control knob, 23-light source control panel, 24-temperature control panel, 25-pressure control panel, the 26-gas conduit, 27-advances/loses heart control line, 28-sprays control panel, 29-sprays control line, the 30-sample stage.
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail.
Embodiment
During asphalt pavement construction, asphalt need heat in air dielectric, and after the road surface was built up, long term exposure was in atmospheric environment, stand natural cause effects such as air (oxygen), sunlight (ultraviolet ray), temperature and precipitation, also will be subjected to the effect of mechanical stresses such as automobile simultaneously.Therefore, the evaluation method to the ageing process of asphalt should fully take into account above-mentioned factor, so that as much as possible near the actual behaviour in service on road surface.The utility model just is being based on above-mentioned theory, and a kind of test unit that satisfies above-mentioned test condition is provided, and this device comprises:
Specimen test chamber 9, advance/gas bleed valve controller 12, water pump 16, water tank 17; Be installed at least one reflection-type black light high-pressure sodium lamp 1, spray head 18, ultraviolet radiation meter 2, pressure transducer 8, temperature sensor 4, electric furnace 6 and sample stage 30 in the specimen test chamber 9; Be installed on gas admittance valve 13 and gas bleed valve 14 on 9 walls of specimen test chamber; Be installed on timer 20, light source control panel 23, temperature control panel 24, pressure control face 25 and the spray control panel 28 of 9 outsides, specimen test chamber; Be positioned at the standard compressed air bottle 15 of 9 outsides, specimen test chamber, amount of samples according to conventional test, four reflection-type black light high-pressure sodium lamps 1 are installed wherein in the device, described reflection-type black light high-pressure sodium lamp 1, spray head 18 and ultraviolet radiation meter 2 all are installed on the top of specimen test chamber 9, for the dirigibility of the implement device that better arrives with scientific, one lifter plate 21 can be installed at the top of specimen test chamber 9, reflection-type black light high-pressure sodium lamp 1, spray head 18 and ultraviolet radiation meter 2 all are installed on the lifter plate 21, in addition, can on lifter plate, be provided with lifting control knob 22, with the 21 lifting work of control lifter plate; Described sample stage 30 is installed on the bottom of specimen test chamber and relative with spray head 18 with reflection-type black light high-pressure sodium lamp 1, described reflection-type black light high-pressure sodium lamp 1 is connected with light source control panel 23, described ultraviolet radiation meter 2 is connected with light source control panel 23, described water pump 16 is installed on the water tank 17, described water pump 16 is connected with spray control panel 28, described spray head 18 is connected with water pump 16, described pressure transducer 8 is connected with pressure control panel 25, described temperature sensor 4 is connected with temperature control panel 24, described electric furnace 6 is connected with temperature control panel 24, described gas admittance valve 13 is connected with standard compressed air bottle 15, described gas admittance valve 13 with advance/gas bleed valve controller 12 is connected, described gas bleed valve 14 with advance/gas bleed valve controller 12 is connected, describedly advance/gas bleed valve controller 12 is connected with pressure control panel 25.Consider from the whole angle of device, above-mentioned water tank 17 can be installed on 9 inside, specimen test chamber, and be installed on 9 bottoms, specimen test chamber.Advance/gas bleed valve controller 12 is installed on 9 inside, specimen test chamber, and is installed on 9 bottoms, specimen test chamber.Described light source control panel 23, pressure control panel 25 and spray control panel 28 all are connected with timer 20.
Above-mentioned reflection-type black light high-pressure sodium lamp 1 is a GHF125W-03 type reflection-type black light high-pressure sodium lamp.
The power of above-mentioned electric furnace 6 is 3000w.
Above-mentioned ultraviolet radiation meter 2 is a UA-A type ultraviolet radiation meter.
Comprise light-source system, temperature control system, control pressurer system, spray system, time controlled system and power control system from the function device:
Light-source system mainly comprises reflection-type black light high-pressure sodium lamp 1, UA-A type ultraviolet radiation meter 2 and light source control panel 23; Light source control panel 23 links to each other with UA-A type ultraviolet radiation meter 2 with reflection-type black light high-pressure sodium lamp 1 by light source control line 3, can realize setting and Based Intelligent Control to intensity of illumination; Wherein reflection-type black light high-pressure sodium lamp 1 adopts GHF125W-03 type reflection-type black light high-pressure sodium lamp, its rated power is 125W, rated voltage is 220V, can produce strong 3650A ultraviolet radiation during work, and its shell adopts the Wu Deshi glass of only saturating long wave ultraviolet UV-A.This system can be in the artificial environment of making under the simulating natural condition and strengthen ultraviolet radiation intensity, so that obtain test findings in the short period of time.
Temperature control system comprises that mainly temperature sensor 4, power are electric furnace 6 and the temperature control panel 24 of 3000w; Temperature sensor 4 links to each other with temperature control panel 24 by temperature sensor line 5; Power is that the electric furnace 6 of 3000w links to each other with temperature control panel 24 by heating control line 7, to realize setting and the Based Intelligent Control to temperature.This system can effectively control the temperature of aged samples environment of living in, fully also accelerated deterioration.
Control pressurer system comprises pressure transducer 8, advances/gas bleed valve controller 12, gas admittance valve 13, gas bleed valve 14, standard compressed air bottle 15 and pressure control panel 25; Pressure transducer 8 is connected with pressure control panel 25 by pressure transducer line 10; Pressure control panel 25 by pressure control line 11 with advance/gas bleed valve controller 12 is connected; Standard compressed air bottle 15 is connected with gas admittance valve 13 by gas conduit 26; Advance/gas bleed valve controller 12 is connected with gas bleed valve 14 with gas admittance valve 13 by advancing/lose heart control line 27, to realize setting and the Based Intelligent Control to pressure.This system by the people for applying air pressure, make test specimen under high pressure with the abundant catalytic oxidation of air, be subjected to lasting oxidation effect under vehicle-mounted and the environmental factor effect with this bituminous pavement that is used for simulating roller-compaction, promptly bituminous pavement is in the long-term ageing effect of operational phase.
Spray system comprises water pump 16, water tank 17, spray head 18 and spray control panel 28; Spray head 18 is connected with water pump 16 by liquid conduits 19; Spray control panel 28 is connected with water pump 16 by spray control line 29, to realize the spray operation to sample.This system is by the artificial humidity that increases test specimen experimental enviroment of living in, fully simulates asphalt material at making during in the road surface, the influence of suffered physical environment precipitation.
Time controlled system comprises timer 20, can control the time of pitch and asphalt long-term ageing analogue system, and when regularly finishing, pitch and asphalt long-term ageing analogue system are promptly closed automatically.For adapting to the sample input test of different time, individual sample can be tested timing range respectively: 0.01～999 hour 59 minutes ± 1s.
For improving the intelligent of device, light-source system, temperature control system, control pressurer system, spray system, time controlled system etc. are carried out electrical equipment in the practical work process, all can link to each other with computer control system, change corresponding action into by instructions, thereby finish the overall process of pitch and asphalt long-term ageing emulation automatically computer control system.Computer control system is connected by the light source control panel 23 in timer 20 and the light-source system, the pressure control panel 25 in the control pressurer system, the spray control panel 28 in the spray system, system can realize the control to each system test time according to light application time, pressure time, the spray cycle of prior setting; Computer control system is connected with temperature control panel 24 in the temperature control system, heating system can be according to the temperature heating of prior setting, when temperature reaches design temperature, temperature sensor can transmit signals to computer control system, and then give temperature control system with signal feedback, this moment, temperature control system control added electrothermal stove, made it stop heating.
Device of the present utility model uses step as follows.
(1) pitch or asphalt sample are put on the sample stage 30 of specimen test chamber 9.
(2) height between accommodation reflex type black light high-pressure sodium lamp 1 and the sample.
(3) opening power.
(4) on light source control panel 23, set the required ultraviolet radiation intensity of test, set temperature in the testing laboratory (the highest provide 150 ℃) on the temperature control panel 24, on pressure control panel 25, set test needed pressure (maximum can provide the pressure of 2.1MPa), (time can provide 0.01～999 hour 59 minutes ± 1s, and water spray pressure can provide 78～127kpa) to set the spray cycle on spray control panel 28.
(5) automated system operation according to the time of the corresponding different outdoor unaccelerated aging of the emulation of different indoor long-term digestion times, takes out pitch or asphalt and carries out the conventional analysis test, judges the performance of the anti-long-term ageing of asphalt material.Write down the time of temperature in the specimen test chamber, pressure, ultraviolet ageing, the radiation output decay situation and the spray cycle of reflection-type black light high-pressure sodium lamp simultaneously.
(6) battery of tests finishes, and takes out test specimen, changes new test specimen, carries out the next round test according to above-mentioned steps.
Claims (10)
1. device that is used for pitch and asphalt long-term aging test is characterized in that this device comprises: specimen test chamber (9), advance/gas bleed valve controller (12), water pump (16), water tank (17); Be installed at least one reflection-type black light high-pressure sodium lamp (1), spray head (18), ultraviolet radiation meter (2), pressure transducer (8), temperature sensor (4), electric furnace (6) and sample stage (30) in the specimen test chamber (9); And be installed on gas admittance valve (13) and gas bleed valve (14) on the wall of specimen test chamber (9); And be installed on the outside timer (20) in specimen test chamber (9), light source control panel (23), temperature control panel (24), pressure control face (25) and spray control panel (28); And the standard compressed air bottle (15) that is positioned at outside, specimen test chamber (9), described reflection-type black light high-pressure sodium lamp (1), spray head (18) and ultraviolet radiation meter (2) all are installed on the top of specimen test chamber (9), described sample stage (30) is installed on the bottom of specimen test chamber (9) and relative with spray head (18) with reflection-type black light high-pressure sodium lamp (1), described reflection-type black light high-pressure sodium lamp (1) is connected with light source control panel (23), described ultraviolet radiation meter (2) is connected with light source control panel (23), described water pump (16) is installed on the water tank (17), and this water pump (16) is connected with spray control panel (28), described spray head (18) is connected with water pump (16), described pressure transducer (8) is connected with pressure control panel (25), described temperature sensor (4) is connected with temperature control panel (24), described electric furnace (6) is connected with temperature control panel (24), described gas admittance valve (13) is connected with standard compressed air bottle (15), described gas admittance valve (13) with advance/gas bleed valve controller (12) is connected, described gas bleed valve (14) with advance/gas bleed valve controller (12) is connected, describedly advance/gas bleed valve controller (12) is connected described light source control panel (23) with pressure control panel (25), pressure control panel (25) all is connected with timer (20) with spray control panel (28).
2. device as claimed in claim 1, it is characterized in that, described device also comprises lifter plate (21), this lifter plate (21) is installed on top, specimen test chamber (9), and described reflection-type black light high-pressure sodium lamp (1), spray head (18) and ultraviolet radiation meter (2) all are installed on the lifter plate (21).
3. device as claimed in claim 2 is characterized in that, described lifter plate (21) is provided with lifting control knob (22).
4. device as claimed in claim 1, it is characterized in that described timer (20), light source control panel (23), temperature control panel (24), pressure control face (25) and spray control panel (28) all are installed on the outer wall of specimen test chamber (9).
5. device as claimed in claim 1 is characterized in that, described water tank (17) is installed on inside, specimen test chamber (9), and is installed on bottom, specimen test chamber (9).
6. device as claimed in claim 1 is characterized in that, describedly advance/gas bleed valve controller (12) is installed on inside, specimen test chamber (9), and is installed on bottom, specimen test chamber (9).
7. device as claimed in claim 1, it is characterized in that, described reflection-type black light high-pressure sodium lamp (1) is connected with light source control panel (23) by light source control line (3), described ultraviolet radiation meter (2) is connected with light source control panel (23) by light source control line (3), described spray head (18) is connected with water pump (16) by liquid conduits (19), described water pump (16) is connected with spray control panel (28) by spray control line (29), described pressure transducer (8) is connected with pressure control panel (25) by pressure transducer line (10), described temperature sensor (4) is connected with temperature control panel (24) by temperature sensor line (5), described electric furnace (6) is connected with temperature control panel (24) by heating control line (7), described gas admittance valve (13) is connected with standard compressed air bottle (15) by gas conduit (26), described gas admittance valve (13) by advance/lose heart control line (27) and advance/gas bleed valve controller (12) is connected, described gas bleed valve (14) by advance/lose heart control line (27) and advance/gas bleed valve controller (12) is connected, describedly advance/gas bleed valve controller (12) is connected with pressure control panel (25) by pressure control line (11).
8. device as claimed in claim 1 is characterized in that, described device comprises four reflection-type black light high-pressure sodium lamps (1).
9. as claim 1 or 8 described devices, it is characterized in that described reflection-type black light high-pressure sodium lamp (1) is a GHF125W-03 type reflection-type black light high-pressure sodium lamp.
10. device as claimed in claim 1 is characterized in that, described ultraviolet radiation meter (2) is a UA-A type ultraviolet radiation meter.
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| CN2011201487435U CN202057574U (en) | 2011-05-11 | 2011-05-11 | Device for long-time aging tests of asphalt and asphalt mixture |
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| CN2011201487435U CN202057574U (en) | 2011-05-11 | 2011-05-11 | Device for long-time aging tests of asphalt and asphalt mixture |
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| CN102519836A (en) * | 2011-12-15 | 2012-06-27 | 长安大学 | Device for testing adhesion between asphalt and aggregate |
| CN102539651A (en) * | 2011-12-15 | 2012-07-04 | 长安大学 | Snow melting service life predicting device for salt self-snow-melting road surface |
| CN102680383A (en) * | 2012-05-17 | 2012-09-19 | 扬州大学 | Indoor aging method of rubber powder modified asphalt under joint effect of heat, oxygen and water |
| CN102735823A (en) * | 2012-06-20 | 2012-10-17 | 江苏山水建设集团有限公司 | Asphalt water-aging test method |
| CN103196818A (en) * | 2013-03-19 | 2013-07-10 | 同济大学 | Partition test method for ultraviolet light aging intensity of asphalt |
| CN103528939A (en) * | 2012-07-05 | 2014-01-22 | 阿特拉斯材料测试技术公司 | Detection of the emission radiation of a uv light emitting diode using a uv light receiving diode of the same design |
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| CN102539651B (en) * | 2011-12-15 | 2014-12-10 | 长安大学 | Snow melting service life predicting device for salt self-snow-melting road surface |
| CN102539651A (en) * | 2011-12-15 | 2012-07-04 | 长安大学 | Snow melting service life predicting device for salt self-snow-melting road surface |
| CN102519836A (en) * | 2011-12-15 | 2012-06-27 | 长安大学 | Device for testing adhesion between asphalt and aggregate |
| CN102519836B (en) * | 2011-12-15 | 2013-11-20 | 长安大学 | Device for testing adhesion between asphalt and aggregate |
| CN102680383A (en) * | 2012-05-17 | 2012-09-19 | 扬州大学 | Indoor aging method of rubber powder modified asphalt under joint effect of heat, oxygen and water |
| CN102735823A (en) * | 2012-06-20 | 2012-10-17 | 江苏山水建设集团有限公司 | Asphalt water-aging test method |
| CN103528939B (en) * | 2012-07-05 | 2016-02-17 | 阿特拉斯材料测试技术公司 | By the emitted radiation of mutually isostructural light receiving diode identification ultraviolet LED |
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| CN103760329A (en) * | 2014-02-19 | 2014-04-30 | 重庆交通大学 | Heat, light and water coupled aging test chamber for asphalt |
| CN104458625A (en) * | 2014-11-14 | 2015-03-25 | 扬州大学 | Light-water coupling asphalt aging instrument |
| CN104458625B (en) * | 2014-11-14 | 2017-04-19 | 扬州大学 | Light-water coupling asphalt aging instrument |
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| CN105784575A (en) * | 2016-03-10 | 2016-07-20 | 同济大学 | Ultraviolet aging test method for asphalt material in tension state |
| CN105784575B (en) * | 2016-03-10 | 2018-06-05 | 同济大学 | Asphalt material ultraviolet light and aging test method under tension state |
| CN106092866A (en) * | 2016-05-27 | 2016-11-09 | 哈尔滨工业大学 | The multifactor ageing oven of asphalt material |
| CN108956438A (en) * | 2018-07-23 | 2018-12-07 | 长安大学 | Ultraviolet radioactive-oxygen-temperature-humidity coupling ageing of asphalt experimental rig and method |
| CN108956438B (en) * | 2018-07-23 | 2020-12-15 | 长安大学 | Ultraviolet radiation-oxygen-temperature-humidity coupled asphalt aging test device and method |
| CN110687278A (en) * | 2019-10-16 | 2020-01-14 | 长安大学 | Detection and treatment device for carbon emission of asphalt mixture and operation method |
| CN111220533A (en) * | 2020-01-20 | 2020-06-02 | 长安大学 | Color analyzer for color asphalt under ultraviolet light aging |
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| 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 |
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| CN112945839A (en) * | 2021-03-29 | 2021-06-11 | 民航建设(天津)科技有限公司 | Concrete pavement durability test method |
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