CN203534943U - Bitumen photoaging and thermal aging test box - Google Patents
Bitumen photoaging and thermal aging test box Download PDFInfo
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- CN203534943U CN203534943U CN201320685600.7U CN201320685600U CN203534943U CN 203534943 U CN203534943 U CN 203534943U CN 201320685600 U CN201320685600 U CN 201320685600U CN 203534943 U CN203534943 U CN 203534943U
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- light
- aging test
- test chamber
- device case
- pitch
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Abstract
The utility model discloses a bitumen photoaging and thermal aging test box, which comprises a box body, a light selection device capable of changing wavelength and intensity and a heating element, wherein the light selection device capable of changing the wavelength and intensity is used for supplying light to a bitumen sample in the box body; the heating element is used for heating the box body; the light selection box capable of changing the wavelength and intensity is mounted at the upper part of the box body; the heating element is mounted on the sidewall of the box body. The bitumen photoaging and thermal aging test box can simulate the influence of two kinds of aging conditions including the light and the temperature on the aging of the bitumen, and further provides a powerful basis for comprehensively knowing the effect of the light and the temperature on the aging of the bitumen and avoidance of photoaging and thermal aging, so as to facilitate putting forward effective improvement measures.
Description
Technical field
The utility model relates to a kind of test unit, particularly relates to a kind of pitch light aging and heat aging test chamber.
Background technology
Because China is vast in territory, with a varied topography and weather conditions difference is large, the sun is different in size to the difference of each department radiation intensity and radiated time, makes China's areal variation obvious.In road construction, light plays very important effect to pitch aging.
Because its viscosity after pitch light aging declines, with the adhesiveness variation of gathering materials, easily cause that road surface chaps, more serious even pitch comes off from the surface gathering materials, and produces and cheats groove.If maintenance not in time, meeting ponding in the karst topography groove that rains, rainwater penetrates under surface layer, further produces the infringements such as purt mud, has a strong impact on the pavement performance of bituminous pavement, thereby affects the serviceable life of bituminous pavement.
Light is mainly thought the impact of light middle-ultraviolet lamp on the research of ageing of asphalt at present, and to its existing comparatively deep understanding, and the varying strength of the light of other different wave lengths (as ruddiness, green glow etc.) and corresponding light is also had to profound research to the impact of ageing of asphalt.Yet, only aging to pitch of research ultraviolet ray, can not fully understand the impact of light on ageing of asphalt, causes the understanding of pitch photooxidation aging property to have one-sidedness, therefore can not propose effectively to improve the measure of pitch light aging, have a strong impact on the serviceable life of bituminous pavement.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, and a kind of pitch light aging and heat aging test chamber are provided.This pitch light aging and heat aging test chamber can be simulated two kinds of aging condition-light and the impact of temperature on ageing of asphalt, understand more comprehensively various light and the temperature action effect to ageing of asphalt, for avoiding pitch light aging and heat ageing that strong foundation is provided, thereby be also conducive to propose effectively to improve measure.
For achieving the above object, the technical solution adopted in the utility model is: pitch light aging and heat aging test chamber, it is characterized in that: comprise casing, variable wavelength and the variable intensity light selecting arrangement of illumination are provided for asphalt sample in casing, and the heating element for casing is heated, described variable wavelength and variable intensity light selecting arrangement are arranged on the top of casing, and described heating element is arranged on wall box.
Above-mentioned pitch light aging and heat aging test chamber, it is characterized in that: described variable wavelength and variable intensity light selecting arrangement comprise device case and be arranged on the xenon lamp in device case, entrance slit and outlet gap, described entrance slit is arranged on the top of device case, described outlet gap is arranged on the bottom of device case, described device case is interior and be provided with collimating apparatus between entrance slit and outlet gap, reflective diffraction gratings, concentrating element and output deviation mirror, described collimating apparatus be positioned at entrance slit under, described output deviation mirror be arranged on outlet gap directly over, described reflective diffraction gratings and concentrating element are all between collimating apparatus and output deviation mirror, described reflective diffraction gratings is positioned at a side of collimating apparatus, described concentrating element is positioned at the opposite side of collimating apparatus.
Above-mentioned pitch light aging and heat aging test chamber, is characterized in that: in described device case, be provided with the propulsion system for driving reflective diffraction gratings to rotate in perpendicular.
Above-mentioned pitch light aging and heat aging test chamber, is characterized in that: a side of described xenon lamp is provided with irradiatometer.
Above-mentioned pitch light aging and heat aging test chamber, it is characterized in that: also comprise temperature control system, described temperature control system comprises temperature sensor, the temperature controller for receiving temperature sensor and relay being carried out to break-make control for detection of spin manifold temperature, the input end of described temperature sensor and temperature controller joins, output terminal and the relay of described temperature controller join, and described relay and power supply and heating element join.
Above-mentioned pitch light aging and heat aging test chamber, is characterized in that: between described power supply and relay, be serially connected with successively earth leakage protective device and fuse.
The utility model compared with prior art has the following advantages:
1, of the present utility model simple in structure, rationally novel in design.
2, existing ageing of asphalt chamber, or just for light aging, or be heat ageing, and the utility model can be simulated two kinds of aging conditions simultaneously, understands more comprehensively the action effect of various light and temperature ageing of asphalt.
3, the utility model drives reflective diffraction gratings to rotate by propulsion system, to change the optical wavelength of transmission.
4, of the present utility model to realize cost low, and result of use is good, is convenient to promote the use of.
In sum, the utility model is simple in structure, and rationally novel in design, functional reliability is high, long service life, and result of use is good, is convenient to promote the use of.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model variable wavelength and variable intensity light selecting arrangement.
Fig. 2 is the schematic block circuit diagram of the utility model temperature control system.
Description of reference numerals:
1-variable wavelength and variable intensity light selecting arrangement; 1-1-device case;
1-2-collimating apparatus; 1-3-entrance slit; 1-4-xenon lamp;
1-5-irradiatometer; 1-6-reflective diffraction gratings; 1-7-output shaft;
1-8-output deviation mirror; 1-9-outlet gap; 1-10-concentrating element;
2-heating element; 3-temperature sensor; 4-temperature controller;
5-relay; 6-power supply; 7-earth leakage protective device;
8-fuse.
Embodiment
A kind of pitch light aging and heat aging test chamber as depicted in figs. 1 and 2, comprise casing, variable wavelength and the variable intensity light selecting arrangement 1 of illumination are provided for asphalt sample in casing, and the heating element 2 for casing is heated, described variable wavelength and variable intensity light selecting arrangement 1 are arranged on the top of casing, and described heating element 2 is arranged on wall box.
In the present embodiment, by utilizing variable wavelength and the different wave length of variable intensity light selecting arrangement 1 ejaculation and the light of varying strength to irradiate asphalt sample, thereby the test light (as ruddiness, green glow etc.) of different wave length and the impact of the varying strength of corresponding light on ageing of asphalt, and then make up current pitch light aging only for the deficiency of ultraviolet light, thereby can fully understand the impact of light on ageing of asphalt, improve the one-sidedness that the understanding of pitch photooxidation aging property is existed, therefore can help to propose effectively to improve the measure of pitch light aging.By asphalt sample is heated, test the heat aging performance of pitch simultaneously.
As shown in Figure 1, described variable wavelength and variable intensity light selecting arrangement 1 comprise device case 1-1 and are arranged on the xenon lamp 1-4 in device case 1-1, entrance slit 1-3 and outlet gap 1-9, described entrance slit 1-3 is arranged on the top of device case 1-1, described outlet gap 1-9 is arranged on the bottom of device case 1-1, described device case 1-1 is interior and be provided with collimating apparatus 1-2 between entrance slit 1-3 and outlet gap 1-9, reflective diffraction gratings 1-6, concentrating element 1-10 and output deviation mirror 1-8, described collimating apparatus 1-2 be positioned at entrance slit 1-3 under, described output deviation mirror 1-8 be arranged on outlet gap 1-9 directly over, described reflective diffraction gratings 1-6 and concentrating element 1-10 are all between collimating apparatus 1-2 and output deviation mirror 1-8, described reflective diffraction gratings 1-6 is positioned at a side of collimating apparatus 1-2, described concentrating element 1-10 is positioned at the opposite side of collimating apparatus 1-2.
As shown in Figure 1, in described device case 1-1, be provided with the propulsion system for driving reflective diffraction gratings 1-6 to rotate in perpendicular.In the present embodiment, described propulsion system are motor, and described reflective diffraction gratings 1-6 is connected with the outer circumference surface of motor output shaft 1-7.By propulsion system, drive reflective diffraction gratings 1-6 to rotate, to change the optical wavelength of transmission.
In the present embodiment, described reflective diffraction gratings 1-6, for example every millimeter of grating with 2400 grooves.In order to calibrate and guide light, between entrance slit 1-3 and reflective diffraction gratings 1-6, provide collimating apparatus 1-2.Also, by concentrating element 1-10, with focused light, towards outlet gap 1-9, described outlet gap 1-9 determines transmission bandwidth.For guide light from concentrating element 1-10 towards outlet gap 1-9, thereby output deviation mirror 1-8 is set.During use, the light of xenon lamp 1-4 is injected collimating apparatus 1-2 by entrance slit 1-3, and then enter utilize propulsion system change reflective diffraction gratings 1-6-incident angle and export the light of specific wavelength, utilize concentrating element 1-10 that light is focused on, then inject output deviation mirror 1-8 from the light of outlet gap 1-9 output specific wavelength.
As shown in Figure 1, a side of described xenon lamp 1-4 is provided with irradiatometer 1-5.By irradiatometer 1-5 being set for the variation of measurement light source intensity.During actual use, can regulate the light intensity of xenon lamp 1-4.
As shown in Figure 2, this pitch light aging and heat aging test chamber also comprise temperature control system, described temperature control system comprises temperature sensor 3, the temperature controller 4 for receiving temperature sensor 3 and relay 5 being carried out to break-make control for detection of spin manifold temperature, described temperature sensor 3 joins with the input end of temperature controller 4, the output terminal of described temperature controller 4 and relay 5 join, and described relay 5 joins with power supply 6 and heating element 2.By 6 pairs of heating element 2 transmission of electric energy of power supply, by 2 pairs of casings of heating element, heat, and then the asphalt sample in casing is heated, can set heat time and heating-up temperature by temperature controller 4.
As shown in Figure 2, between described power supply 6 and relay 5, be serially connected with successively earth leakage protective device 7 and fuse 8.By earth leakage protective device 7 being set and fuse 8 has guaranteed Electrical Safety.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification, change and equivalent structure transformation of above embodiment being done according to the utility model technical spirit, all still belongs in the protection domain of technical solutions of the utility model.
Claims (6)
1. pitch light aging and heat aging test chamber, it is characterized in that: comprise casing, variable wavelength and the variable intensity light selecting arrangement (1) of illumination are provided for asphalt sample in casing, and the heating element (2) for casing is heated, described variable wavelength and variable intensity light selecting arrangement (1) are arranged on the top of casing, and described heating element (2) is arranged on wall box.
2. pitch light aging according to claim 1 and heat aging test chamber, it is characterized in that: described variable wavelength and variable intensity light selecting arrangement (1) comprise device case (1-1) and be arranged on the xenon lamp (1-4) in device case (1-1), entrance slit (1-3) and outlet gap (1-9), described entrance slit (1-3) is arranged on the top of device case (1-1), described outlet gap (1-9) is arranged on the bottom of device case (1-1), in described device case (1-1) and be positioned between entrance slit (1-3) and outlet gap (1-9) and be provided with collimating apparatus (1-2), reflective diffraction gratings (1-6), concentrating element (1-10) and output deviation mirror (1-8), described collimating apparatus (1-2) be positioned at entrance slit (1-3) under, described output deviation mirror (1-8) be arranged on outlet gap (1-9) directly over, described reflective diffraction gratings (1-6) and concentrating element (1-10) are all positioned between collimating apparatus (1-2) and output deviation mirror (1-8), described reflective diffraction gratings (1-6) is positioned at a side of collimating apparatus (1-2), described concentrating element (1-10) is positioned at the opposite side of collimating apparatus (1-2).
3. pitch light aging according to claim 2 and heat aging test chamber, is characterized in that: in described device case (1-1), be provided with the propulsion system for driving reflective diffraction gratings (1-6) to rotate in perpendicular.
4. pitch light aging according to claim 2 and heat aging test chamber, is characterized in that: a side of described xenon lamp (1-4) is provided with irradiatometer (1-5).
5. pitch light aging according to claim 1 and heat aging test chamber, it is characterized in that: also comprise temperature control system, described temperature control system comprises the temperature sensor (3) for detection of spin manifold temperature, the temperature controller (4) that is used for receiving temperature sensor (3) and relay (5) is carried out to break-make control, described temperature sensor (3) joins with the input end of temperature controller (4), the output terminal of described temperature controller (4) and relay (5) join, described relay (5) joins with power supply (6) and heating element (2).
6. pitch light aging according to claim 5 and heat aging test chamber, is characterized in that: between described power supply (6) and relay (5), be serially connected with successively earth leakage protective device (7) and fuse (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685600.7U CN203534943U (en) | 2013-10-31 | 2013-10-31 | Bitumen photoaging and thermal aging test box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320685600.7U CN203534943U (en) | 2013-10-31 | 2013-10-31 | Bitumen photoaging and thermal aging test box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203534943U true CN203534943U (en) | 2014-04-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320685600.7U Expired - Fee Related CN203534943U (en) | 2013-10-31 | 2013-10-31 | Bitumen photoaging and thermal aging test box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203534943U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092866A (en) * | 2016-05-27 | 2016-11-09 | 哈尔滨工业大学 | The multifactor ageing oven of asphalt material |
-
2013
- 2013-10-31 CN CN201320685600.7U patent/CN203534943U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106092866A (en) * | 2016-05-27 | 2016-11-09 | 哈尔滨工业大学 | The multifactor ageing oven of asphalt material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20161031 |