CN217033554U - Asphalt material multifactor aging test device - Google Patents
Asphalt material multifactor aging test device Download PDFInfo
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- CN217033554U CN217033554U CN202220751932.XU CN202220751932U CN217033554U CN 217033554 U CN217033554 U CN 217033554U CN 202220751932 U CN202220751932 U CN 202220751932U CN 217033554 U CN217033554 U CN 217033554U
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Abstract
The utility model discloses a multi-factor aging test device for an asphalt material, and aims to solve the problem that simulation influence factors of an existing asphalt material aging test are few. The box body of the asphalt material multifactor aging test device is divided into an aging chamber and a water tank chamber by a partition plate, an exhaust port of an oxygen tank is communicated with the aging chamber through an air pipe, an ultraviolet fluorescent lamp is arranged at the top of the aging chamber, a heater is arranged on the side wall, a water tank is arranged on the partition plate, the water tank is annular, a drain pipe is arranged at the bottom of the water tank, a telescopic rod is arranged on the partition plate and positioned in a circular hole in the center of the annular water tank, and a sample disc is arranged at the telescopic end of the telescopic rod; the acid salt container and the water tank are both positioned in the water tank chamber, the water outlet of the water tank at one end of the spraying pipe is connected, and the other end of the spraying pipe extends into the aging chamber. The utility model can simulate the environments such as ultraviolet irradiation, rain, high temperature, high oxygen and the like, and realize the aging test of the asphalt material under the coupling action of light, heat, water and other factors.
Description
Technical Field
The utility model relates to an asphalt material aging test device under a multi-factor simulation environment.
Background
Asphalt pavement failure is a number of factors, of which asphalt aging is an important factor. In the transportation, paving and service processes of asphalt, the asphalt is subjected to different degrees of aging due to the influence of factors such as high temperature, ultraviolet irradiation and the like, and the asphalt is mainly hardened after aging, such as increased viscosity, increased softening point, greatly reduced ductility, poor rheological property and the like.
In order to study the influence of different environmental factors on the asphalt performance, an indoor simulated aging test is required. The simulated aging test is to simulate the natural environment indoors, amplify the factors of the natural environment and accelerate the aging of the asphalt so as to obtain the aged asphalt sample and data in a short time. The indoor aging method can shorten the test time, design test factors according to needs, eliminate the interference of non-research factors, and has good reproducibility of test phenomena and data.
However, the existing aging test device can only simulate one or two environmental factors sometimes, the simulation factors are few, and the influence of aging on asphalt materials under the comprehensive action of various factors is difficult to study.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the simulation influence factors of the existing asphalt material aging test are few, and provides a multi-factor aging test device for asphalt materials.
The utility model discloses a multi-factor aging test device for asphalt materials, which comprises a test box, a partition plate, a water tank, a telescopic rod, a sample disc, an oxygen tank, an ultraviolet fluorescent lamp, a water tank and a spray pipe, wherein the partition plate is transversely arranged in the test box;
the acid salt container and the water tank are both located in the water tank chamber, the water discharge pipe of the water tank penetrates through the partition plate and is connected with the first water inlet of the water tank, the acid salt container is connected with the second water inlet of the water tank through the connecting pipe, the water outlet of the water tank at one end of the spraying pipe is connected, the other end of the spraying pipe extends into the aging chamber and is located above the sample disc, and the pressure pump is arranged on the spraying pipe.
The multi-factor aging test device for the asphalt material mainly comprises an ultraviolet fluorescent lamp, an oxygen tank, a heater and a spray pipe, wherein the ultraviolet fluorescent lamp irradiates an asphalt sample to simulate sunlight irradiation, so that the asphalt sample is subjected to ultraviolet aging; the heater is started, and oxygen is filled into the test box to perform a thermo-oxidative aging test; and opening the spray pipe, spraying water to the surface of the asphalt sample, collecting redundant sprayed water by the water tank, returning the water in the water tank to realize cyclic utilization, performing a water aging test, adding acid liquor and/or salt into the water tank through the acid salt container, and researching the influence of acid rain and/or salt solution on asphalt aging.
The multi-factor aging test device for the asphalt material can simulate environments such as ultraviolet irradiation, acid rain, high temperature, high oxygen and the like, realize an aging test of the asphalt material under the coupling action of multiple factors such as light, heat, water and the like, accelerate the aging of the asphalt and research the influence of aging on the rheological property of the asphalt under different factors.
Drawings
FIG. 1 is a schematic structural diagram of a multi-factor aging test device for asphalt materials.
Detailed Description
The first specific implementation way is as follows: the asphalt material multifactor aging test device of the embodiment comprises a test box 1, a partition plate 2, a water tank 5, an expansion link 6, a sample disc 8, an oxygen tank 11, an ultraviolet fluorescent lamp 14, a water tank 15 and a spray pipe 18, wherein the partition plate 2 is transversely arranged in the test box 1, the test box 1 is divided into an upper aging chamber 3 and a lower water tank chamber 4 by the partition plate 2, the oxygen tank 11 is fixed on the outer wall of the test box 1, an exhaust port of the oxygen tank 11 is communicated with the aging chamber 3 through an air pipe 12, a lamp bracket 13 is arranged on the inner wall of the top of the test box 1, the ultraviolet fluorescent lamp 14 is arranged on the lamp bracket 13, a heater 9 is arranged on the side wall of the aging chamber 3, the water tank 5 is arranged on the partition plate 2, the water tank 5 is annular, a drain pipe 5-1 is arranged at the bottom of the water tank 5, the expansion link 6 is arranged on the partition plate 2 and positioned in a round hole at the center of the annular water tank 5, a fixing plate 7 is arranged at the expansion end of the expansion link 6, the sample plate 8 is arranged on the fixing plate 7;
the acid salt container 20 and the water tank 15 are both positioned in the water tank chamber 4, a water discharge pipe 5-1 of the water tank 5 penetrates through a partition plate to be connected with a first water inlet of the water tank 15, the acid salt container 20 is connected with a second water inlet of the water tank 15 through a connecting pipe 21, a water outlet of the water tank 15 is connected with one end of the spray pipe 18, the other end of the spray pipe 18 extends into the aging chamber 3 and is positioned above the sample tray 8, and the pressure pump 17 is arranged on the spray pipe 18.
The second embodiment is as follows: the difference between the present embodiment and the first embodiment is that a plurality of sensors 10 are further disposed on the side wall of the aging chamber 3, and the sensors 10 include a temperature sensor, a humidity sensor, an oxygen concentration sensor, and an ultraviolet radiometer.
The third concrete implementation mode: the difference between this embodiment and the first or second embodiment is that the sample plate 8 is inserted or magnetically attached to the fixing plate 7.
The fourth concrete implementation mode is as follows: this embodiment differs from one of the first to third embodiments in that a stirrer 16 is provided in the water tank 15.
The fifth concrete implementation mode: the present embodiment is different from one of the first to fourth embodiments in that a plurality of spray nozzles 19 are provided in the shower pipe 18 in the aging chamber 3.
The sixth specific implementation mode: the present embodiment is different from one of the first to fifth embodiments in that the aging chamber 3 and the water tank chamber 4 are each provided with a chamber door.
The chamber door on this embodiment ageing chamber 3 and the water tank room 4 is convenient for get put pitch sample and water tank and adds water.
The embodiment is as follows: the asphalt material multifactor aging test device comprises a test box 1, a partition plate 2, a water tank 5, an expansion link 6, a sample disc 8, an oxygen tank 11, an ultraviolet fluorescent lamp 14, a water tank 15 and a spray pipe 18, wherein the partition plate 2 is transversely arranged in the test box 1, the test box 1 is divided into an upper aging chamber 3 and a lower water tank chamber 4 by the partition plate 2, the oxygen tank 11 is fixed on the outer wall of the test box 1, an exhaust port of the oxygen tank 11 is communicated with the aging chamber 3 through an air pipe 12, the air pipe 12 is provided with a valve, a lamp bracket 13 is arranged on the inner wall of the top of the test box 1, the ultraviolet fluorescent lamp 14 is arranged on the lamp bracket 13, a heater 9 is arranged on the side wall of the aging chamber 3, the water tank 5 is arranged on the partition plate 2, the water tank 5 is annular, the bottom of the water tank 5 is provided with a drain pipe 5-1, the expansion link 6 is arranged on the partition plate 2 and is positioned in a round hole in the center of the annular water tank 5, a fixing plate 7 is arranged at the telescopic end of the telescopic rod 6, and the sample disc 8 is inserted on the fixing plate 7;
the acid salt container 20 and the water tank 15 are both positioned in the water tank chamber 4, the acid salt container 20 is positioned at the upper part of the water tank chamber 4, the two acid salt containers 20 are arranged, one acid rain simulation liquid configured by nitric acid, the other saline solution configured by sodium chloride, a drain pipe 5-1 of the water tank 5 penetrates through a partition plate to be connected with a first water inlet of the water tank 15, the acid salt containers 20 are connected with a second water inlet of the water tank 15 through a connecting pipe 21, a valve is arranged on the connecting pipe 21, a water outlet of the water tank 15 at one end of the spraying pipe 18 is connected, the other end of the spraying pipe 18 extends into the aging chamber 3 and is positioned above the sample tray 8, the spraying pipe 18 is provided with a plurality of nozzles 19, the pressure pump 17 is arranged on the spraying pipe 18, and the pressure pump 17 is positioned in the water tank chamber 4.
The aging chamber 3 and the water tank chamber 4 of the present embodiment are both provided with chamber doors, and the chamber door of the aging chamber 3 is provided with an observation window. The outer diameter of the water tank 5 is larger than the diameter of the sample tray 8; the water tank 15 is provided with scales.
The telescopic rod 6 is positioned in the circular hole of the circular water tank 5, and the distance between the sample and the ultraviolet fluorescent lamp can be adjusted through the electric telescopic rod. The sample disc 8 is inserted on the fixing plate 7, so that the sample disc 8 can be conveniently disassembled and assembled. The diameter of the fixing plate 7 on the telescopic rod 6 is smaller than the diameter of the circular hole of the circular ring-shaped water tank 5, the sample tray 8 is detached firstly after the aging test, the water tank is convenient to take out, and the water tank is cleaned.
The asphalt material multi-factor aging test device of the embodiment is applied to carry out an aging test, the asphalt material is poured into a mold on the sample tray 8, the distance between the asphalt material sample and the ultraviolet fluorescent lamp 14 is adjusted through the telescopic rod 6, and the ultraviolet fluorescent lamp 14 is started to carry out the ultraviolet aging test. And (3) starting the heater 9, controlling the temperature in the aging chamber 3, filling oxygen into the aging chamber 3, and performing a thermo-oxidative aging test on the asphalt material. Adding water into a water tank 15, adding acid rain simulation liquid or salt solution of an acid salt container 20, starting a pressure pump 17, simulating acid rain (or salt solution) to spray on the asphalt sample, and enabling redundant simulated acid rain to fall into a water tank 5 and flow back into the water tank 15 through a drain pipe 5-1 of the water tank 5, so that cyclic spraying of the simulated acid rain is realized, and the influence of the acid rain on asphalt aging is researched.
The multi-factor aging test device for the asphalt material can simulate environmental factors such as high temperature, ultraviolet irradiation, water spraying and high oxygen, can also perform an asphalt sample aging test in a light, heat, oxygen, water and other multi-factor coupling state, provides a simulation environment for researching the influence of different factors and multi-factor comprehensive action on the performance of asphalt or asphalt mixture, and performs an accelerated asphalt sample aging test.
Claims (6)
1. The multi-factor aging test device for the asphalt materials is characterized by comprising a test box (1), a partition plate (2), a water tank (5), an expansion rod (6), a sample disc (8), an oxygen tank (11), an ultraviolet fluorescent lamp (14), a water tank (15) and a spray pipe (18), wherein the partition plate (2) is transversely arranged in the test box (1), the test box (1) is divided into an upper aging chamber (3) and a lower water tank chamber (4) through the partition plate (2), the oxygen tank (11) is fixed on the outer wall of the test box (1), an exhaust port of the oxygen tank (11) is communicated with the aging chamber (3) through an air pipe (12), a lamp bracket (13) is arranged on the inner wall of the top of the test box (1), the ultraviolet fluorescent lamp (14) is arranged on the lamp bracket (13), a heater (9) is arranged on the side wall of the aging chamber (3), the water tank (5) is placed on the partition plate (2), the water tank (5) is annular, a water discharge pipe (5-1) is arranged at the bottom of the water tank (5), the telescopic rod (6) is arranged on the partition plate (2) and is positioned in a circular hole in the center of the annular water tank (5), a fixing plate (7) is arranged at the telescopic end of the telescopic rod (6), and the sample plate (8) is arranged on the fixing plate (7);
the acid salt container (20) and the water tank (15) are both located in the water tank chamber (4), a drain pipe (5-1) of the water tank (5) penetrates through the partition plate to be connected with a first water inlet of the water tank (15), the acid salt container (20) is connected with a second water inlet of the water tank (15) through a connecting pipe (21), a water outlet of the water tank (15) at one end of the spraying pipe (18) is connected, the other end of the spraying pipe (18) extends into the aging chamber (3) and is located above the sample tray (8), and the pressure pump (17) is arranged on the spraying pipe (18).
2. The multi-factor aging test device for asphalt materials according to claim 1, characterized in that a plurality of sensors (10) are further provided on the side wall of the aging chamber (3), and the sensors (10) include a temperature sensor, a humidity sensor, an oxygen concentration sensor and an ultraviolet radiometer.
3. The apparatus for testing the multifactorial aging of asphalt materials according to claim 1, wherein the sample plate (8) is connected to the fixing plate (7) by means of insertion or magnetic attraction.
4. The multifactorial ageing test device for bituminous materials according to claim 1, characterised in that an agitator (16) is provided in the water tank (15).
5. The multifactorial ageing test device for bituminous materials according to claim 1, characterised in that a plurality of nozzles (19) are provided on the shower pipes (18) in the ageing chamber (3).
6. The multifactorial ageing test device for bituminous materials according to claim 1, characterised in that the ageing chamber (3) and the tank chamber (4) are each equipped with a chamber door.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220751932.XU CN217033554U (en) | 2022-04-02 | 2022-04-02 | Asphalt material multifactor aging test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220751932.XU CN217033554U (en) | 2022-04-02 | 2022-04-02 | Asphalt material multifactor aging test device |
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| Publication Number | Publication Date |
|---|---|
| CN217033554U true CN217033554U (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220751932.XU Active CN217033554U (en) | 2022-04-02 | 2022-04-02 | Asphalt material multifactor aging test device |
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| CN (1) | CN217033554U (en) |
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2022
- 2022-04-02 CN CN202220751932.XU patent/CN217033554U/en active Active
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