CN204228708U - Ageing of asphalt instrument - Google Patents
Ageing of asphalt instrument Download PDFInfo
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- CN204228708U CN204228708U CN201420306887.2U CN201420306887U CN204228708U CN 204228708 U CN204228708 U CN 204228708U CN 201420306887 U CN201420306887 U CN 201420306887U CN 204228708 U CN204228708 U CN 204228708U
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Abstract
The utility model discloses a kind of ageing of asphalt instrument, comprise material table, an Electrode connection drives described material table, and described material table revolution is at 15 ± 0.2 revs/min.The ageing of asphalt instrument that the utility model provides adopts motor driving material table, makes it at the uniform velocity to rotate, causes material in uniform light, uniform spraying, make experimental result have more science.
Description
Technical field
The utility model relates to field of mechanical technique, is specifically related to a kind of ageing of asphalt instrument.
Background technology
Pitch is the important materials in road construction, pitch aging/hardening has a significant impact the usability of pitch, is related to the serviceable life on road surface.Ageing of asphalt causes the moulding decline of pitch, and ductility deteriorates, finally loses use value, causes the reason of ageing of asphalt to mainly contain: the active transformation of material itself, sunshine impact, air oxidation, temperature variation, water and humidity effect.The method of current Asphalt Aging Study mainly contains unaccelerated aging method and simulation aging test.
The method of current simulation aging test has: oxygen absorbed method, inverse gas liquid chromatography, thin film oven method and rotary thin film in drying oven method (RTFOT) etc.
Rotary thin film in drying oven method (RTFOT) is proposed by Schmidt for 1973, the short ageing of simulation pitch mixing and stirring, in paving process.In RTFOT, asphalt film is exposed in air in the baking oven of 163 DEG C, forced draft in baking oven, asphalt membrane thickness is not at 0-3mm etc., liquid film flow, constantly changes in process of the test with the specimen surface of hot air, larger to the aging action of pitch, heated time is shorter, and code test continues 85 minutes.RTFOT test accuracy is high, favorable reproducibility, especially can give the burn-in effects of equal extent for different pitch.
But existing asphalt rotating thin-film oven material table maintains static, and causes test article light and non-uniform spraying like this, affects experimental result.
Summary of the invention
Technical problem to be solved in the utility model is, provides a kind of ageing of asphalt instrument effectively overcoming prior art defect.
The technical solution of the utility model is: ageing of asphalt instrument, comprises material table, it is characterized in that, an Electrode connection drives described material table.
This novel optimal technical scheme, described material table revolution is at 15 ± 0.2 revs/min.
This novel optimal technical scheme, described ageing of asphalt instrument uses accurate RTD sensor to carry out sampling to the temperature of operating room and is transferred to controller.
This novel optimal technical scheme, is heat-insulation layer between the case shell of described ageing of asphalt instrument and operating room, and is filled with glass fibre in described heat-insulation layer.
The ageing of asphalt instrument that the utility model provides adopts motor driving material table, makes it at the uniform velocity to rotate, causes material in uniform light, uniform spraying, make experimental result have more science.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is ageing of asphalt instrument structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described.One embodiment of ageing of asphalt instrument as shown in Figure 1, ageing of asphalt instrument, comprise outside case shell 2 and internal work room 1, it is heat-insulation layer 3 between case shell 2 and operating room 1, and be filled with glass fibre in heat-insulation layer 3, be provided with uviol lamp 4 and spray head 5 above in operating room 1, operating room 1 is provided with material table 6 close to bottom, and motor 7 connects this material table 6 of drive; And ageing of asphalt instrument of the present utility model uses accurate RTD sensor to carry out sampling to the temperature of operating room is transferred to controller.
When opening ageing of asphalt instrument, (1), first power supply is started, heating " I " shelves are used during intensification, and set temperature controller to temperature required, when for reaching temperature required, changing heating " I " shelves is " 1/3 " or " 2/3 " gear, until be suspended on oven interior, a thermometer indicates temperature for " 163 ± 0.5 DEG C " balance;
(2), by test method, take a certain amount of bitumen samples, load reducing sample plasma bottle, be positioned on equably again on material table, when the bottle containing sample is less than 8, also empty bottle symmetry should be loaded onto, open switch, allow material table rotate according to certain speed, be preferably 15 ± 0.2 revs/min;
(3), start air compressor to baking oven air feed, after reaching the stipulated time, stop heating, rotating disk stall, then open the taking-up of operating room goalkeeper bottle.
More than show and describe ultimate principle of the present utility model, principal character and advantage of the present utility model.The technician of the industry should understand; the utility model is not by the restriction of above-mentioned example; what describe in above-mentioned example and instructions just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (1)
1. ageing of asphalt instrument, comprises material table, it is characterized in that, a motor connects the described material table of drive, and described ageing of asphalt instrument uses accurate RTD sensor to carry out sampling to the temperature of operating room and is transferred to controller; Described material table revolution, at 15 ± 0.2 revs/min, is heat-insulation layer between the case shell of described ageing of asphalt instrument and operating room, and is filled with glass fibre in described heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306887.2U CN204228708U (en) | 2014-06-10 | 2014-06-10 | Ageing of asphalt instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420306887.2U CN204228708U (en) | 2014-06-10 | 2014-06-10 | Ageing of asphalt instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204228708U true CN204228708U (en) | 2015-03-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420306887.2U Active CN204228708U (en) | 2014-06-10 | 2014-06-10 | Ageing of asphalt instrument |
Country Status (1)
| Country | Link |
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| CN (1) | CN204228708U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043964A (en) * | 2015-07-16 | 2015-11-11 | 哈尔滨工业大学 | Test apparatus for ultraviolet aging acceleration of asphalt-based materials |
| CN106124745A (en) * | 2016-08-29 | 2016-11-16 | 济南市市政工程设计研究院（集团）有限责任公司 | Measure instrument and the method for asphalt operational phase CO2 emissions |
-
2014
- 2014-06-10 CN CN201420306887.2U patent/CN204228708U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043964A (en) * | 2015-07-16 | 2015-11-11 | 哈尔滨工业大学 | Test apparatus for ultraviolet aging acceleration of asphalt-based materials |
| CN105043964B (en) * | 2015-07-16 | 2017-12-08 | 哈尔滨工业大学 | A kind of experimental rig for accelerating ultraviolet ageing for asphalt-based material |
| CN106124745A (en) * | 2016-08-29 | 2016-11-16 | 济南市市政工程设计研究院（集团）有限责任公司 | Measure instrument and the method for asphalt operational phase CO2 emissions |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |