CN210376078U - Multifunctional asphalt aging experimental device - Google Patents
Multifunctional asphalt aging experimental device Download PDFInfo
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- CN210376078U CN210376078U CN201920964071.1U CN201920964071U CN210376078U CN 210376078 U CN210376078 U CN 210376078U CN 201920964071 U CN201920964071 U CN 201920964071U CN 210376078 U CN210376078 U CN 210376078U
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Abstract
The utility model discloses a multifunctional asphalt aging experimental device, which comprises an aging box body, a vacuum tube and a vacuum pump; the aging box body is of a closed structure and is made of glass; the lower part of the aging box body is communicated with one end of a vacuum tube, and the other end of the vacuum tube is communicated with a vacuum pump; a vacuum meter and a vacuum degree regulator are arranged on the vacuum tube; the asphalt is arranged in the aging box body; the aging box body is of a closed structure and comprises a base and a cover body assembly arranged on the base; the base and the cover body component form a box body with a cavity inside; the base and the cover body assembly are respectively made of glass. The utility model has the advantages that: device configuration vacuum pump and vacuum tube to ageing box evacuation, can satisfy the asphalt with have under various vacuum environment ultraviolet ray, do not have ultraviolet ray, ultraviolet ray wave band scope is adjustable, the ageing tests of pitch under the multiple condition combination such as ultraviolet ray irradiation intensity is adjustable, compare with current function singleness experimental apparatus, the utility model provides high experimental efficiency and the cost is reduced, convenient operation.
Description
Technical Field
The utility model relates to an experimental apparatus, concretely relates to multi-functional pitch experimental apparatus that ages.
Background
Asphalt aging is one of the main causes of asphalt concrete pavement diseases, and the damage of the asphalt concrete pavement caused by the asphalt aging causes huge loss. The asphalt aging factors are various, such as volatilization, oxidation, polymerization, light, water, thixotropy and the like, and obviously, the asphalt aging factors cannot be influenced by only one factor but act together under the combination of multiple factors in a natural state. Different factors can produce different effects, and the aging mechanism is more complicated when the factors are combined. In addition, different chemical bonds in the asphalt have different sensitivities to different wave bands of ultraviolet light, and different wave bands of ultraviolet light energy are different, and the ultraviolet light aging of the asphalt must occur in the sensitive wave bands corresponding to the chemical bonds of the asphalt, so that the influence of the ultraviolet light of different wave bands on the aging of the asphalt is different. Therefore, the research on the aging mode and the influence factors of the asphalt under various factors has positive and profound effects and meanings on improving the anti-aging performance of the asphalt and prolonging the service life of the asphalt concrete pavement.
However, at present, the experimental equipment for asphalt aging is combined by various equipment, each experimental equipment can only test a certain type of aging condition, and the experimental result is not standard; in addition, the existing ultraviolet light asphalt aging equipment is complex in structure, complex in operation and large in error of experimental results, and influences are generated on the accuracy and authenticity of the experimental results.
Disclosure of Invention
An object of the utility model is to provide a can carry out the ageing experimental apparatus of multi-functional pitch of testing under the influence of multiple factor to prior art not enough.
The utility model adopts the technical proposal that: a multifunctional asphalt aging experimental device comprises an aging box body, a vacuum tube and a vacuum pump; the aging box body is of a closed structure and is made of glass; the lower part of the aging box body is communicated with one end of a vacuum tube, and the other end of the vacuum tube is communicated with a vacuum pump; a vacuum meter and a vacuum degree regulator are arranged on the vacuum tube; the asphalt is arranged in the aging box body.
According to the scheme, the aging box body is of a closed structure and comprises a base and a cover body assembly arranged on the base; the base and the cover body component form a box body with a cavity inside; the base and the cover body assembly are respectively made of glass.
According to the scheme, bosses are arranged on the peripheral edges of the base, and grooves are formed in the bosses; the cover body assembly comprises an upper cover and four side plates which are fixed on the periphery of the upper cover and enclose the upper cover, the upper cover and the four side plates are of an integrated structure, and the lower ends of the four side plates are inserted into the grooves; the upper cover body, the four side plates and the base enclose to form an aging box body.
According to the scheme, the surface of the upper cover is paved with the filter plate.
According to the scheme, the base is internally provided with the leading-out channel, the inlet end of the leading-out channel is communicated with the inside of the aging box body, and the leading-out channel penetrates out of the lower part of the boss and then is communicated with the vacuum tube through the valve.
According to the scheme, the bottom of the groove is provided with the sealing ring; the lower end of the side plate is arranged on the sealing ring.
According to the scheme, the connection part of the upper cover, the groove and the sealing ring is subjected to sanding treatment.
According to the scheme, the light shield is arranged outside the side plate.
The utility model has the advantages that:
1. the device of the utility model is provided with a vacuum pump and a vacuum tube, and the aging box body is vacuumized, so that the aging test of asphalt under various vacuum environments (vacuum environment, air environment, low vacuum environment, etc.) and under the combination of various conditions such as ultraviolet light, no ultraviolet light, adjustable ultraviolet light wave band range, adjustable ultraviolet light irradiation intensity, etc. can be satisfied, compared with the existing experimental device with single function, the utility model improves the experimental efficiency, reduces the cost and is convenient to operate;
2. the aging box body of the utility model is a split structure, the base of the aging box body is inserted with the cover body component, the structure is convenient for installation and subsequent experimental asphalt placement operation, the operation is simple and easy to operate, and the influence on the subsequent experimental structure is small; meanwhile, the sealing ring is arranged in the groove into which the cover body assembly is inserted, so that the sealing performance of the aging box body is ensured, the experimental accuracy is improved, and the experimental error is reduced;
3. the base and the cover body component of the aging box body are made of glass materials, so that the aging box body is convenient to observe in real time while being transparent;
4. the device is free from cleaning, and low in cost can wide application in pitch ultraviolet ageing experiment field and other relevant experiment fields.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
FIG. 2 shows transmittance of the first cover in a wavelength range of 200nm to 800 nm.
FIG. 3 shows the transmittance of light with a wavelength of 200nm to 800nm for the second cover.
FIG. 4 shows the transmittance of light with a wavelength of 200nm to 800nm for the third upper cover.
FIG. 5 shows the transmittance of the filter between 200nm and 420 nm.
FIG. 6 shows the transmittance of the second filter between 200nm and 420 nm.
FIG. 7 shows the transmittance of the filter III between 200nm and 420 nm.
Fig. 8 shows the transmittance of the filter plate four in the ultraviolet wavelength range of 200nm to 420 nm.
FIG. 9 shows the transmittance of filter V between 200nm and 420 nm.
FIG. 10 shows the transmittance of filter VI between 200nm and 400nm of UV light.
Fig. 11 shows the transmittance of the filter seven in the ultraviolet wavelength range of 200nm to 400 nm.
Fig. 12 shows the transmittance of filter eight for light with a wavelength of ultraviolet light of 200nm to 400 nm.
Fig. 13 shows the transmittance of the filter nine in the ultraviolet wavelength range of 200nm to 400 nm.
FIG. 14 shows the transmittance of the filter between 200nm and 400nm of ultraviolet light.
Wherein: 1. an upper cover; 2. a filter plate; 3. a light shield; 4. a base; 5. a seal ring; 6. a valve; 7. a vacuum tube; 8. a vacuum gauge and a vacuum degree regulator; 9. a vacuum pump; 10. a side plate; 11. and (4) a boss.
Detailed Description
For a better understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
The multifunctional asphalt aging experimental device shown in fig. 1 comprises an aging box body, a vacuum pipe 7 and a vacuum pump 9; the aging box body is of a closed structure and is made of glass materials; the lower part of the aging box body is communicated with one end of a vacuum tube 7, and the other end of the vacuum tube 7 is communicated with a vacuum pump 9; a vacuum gauge and a vacuum degree regulator 8 are arranged on the vacuum tube 7; the asphalt is arranged in the aging box body.
Preferably, the aging box body is of a closed structure and comprises a base 4 and a cover body assembly; bosses 11 are arranged at the peripheral edges of the base 4, and grooves are formed in the bosses 11; the cover body assembly comprises an upper cover 1 and four side plates 10 which are fixed on the periphery of the upper cover 1 and enclose the upper cover 1, the upper cover 1 and the four side plates 10 are of an integrated structure, and the lower ends of the four side plates 10 are inserted into the grooves; the upper cover 1, the four side plates 10 and the base 4 enclose to form an aging box body; the base 4 and the upper cover 1 are made of glass.
Preferably, a filter plate 2 is laid on the surface of the upper cover 1; the filter plate 2 has two half-wavelength of 20nm-25nm and 10nm, and can filter ultraviolet light with various wavelengths corresponding to ultraviolet light with different wavelengths. In the present embodiment, three types of upper covers 1 are designed, and the transmittance of light with a wavelength of 200nm to 800nm of each upper cover is shown in fig. 2 to 4; ten kinds of filters 2 are designed in this embodiment, wherein the transmittance of 5 kinds of filters 2 in the wavelength range of 200nm to 420nm of ultraviolet light is shown in fig. 5 to 9, and the transmittance of the other 5 kinds of filters 2 in the wavelength range of 200nm to 400nm of ultraviolet light is shown in fig. 10 to 14.
Preferably, a leading-out channel is formed in the base 4, the inlet end of the leading-out channel is communicated with the inside of the aging box body, and the leading-out channel penetrates out of the lower part of the boss 11 and is communicated with the vacuum tube 7. The utility model discloses in, the entry that requires to draw forth the passageway is close to the edge of base 4 as far as possible.
Preferably, in order to ensure the sealing of the aging box body, a sealing ring 5 is arranged at the bottom of the groove; the lower end of the side plate 10 is arranged on the sealing ring 5. In order to further improve the sealing performance, the joint of the upper cover 1, the groove and the sealing ring 5 is frosted.
Preferably, a light shield 3 is provided outside the side panel 10.
The utility model discloses in, one of far ultraviolet optics quartz glass, infrared optics quartz glass and the full transmission optics quartz glass can be adopted to upper cover 1 and base 4, selects according to the ageing experiment of specific pitch.
Example one
Placing a No. 110 asphalt sample with the thickness of 10mm in the middle of a base 4, placing a sealing ring 5 in a groove, covering a cover body assembly to be tightly attached to the sealing ring 5, and sleeving a light shield 3 on the outer side of the cover body assembly; a filter 2 with the passing wavelength of 340nm is placed on the surface of the upper cover 1; connecting a vacuum pump 9 with the lead-out channel by using a vacuum tube 7, starting the vacuum pump 9 to remove air in the aging box, checking the vacuum degree by using a vacuum meter, closing a valve 6 after the aging box is completely vacuum, taking away the vacuum tube 7, putting the aging box into a filter 2 with the set ultraviolet radiation intensity of 7W/m under the condition of passing through a filter with the wavelength of 340nm2The ultraviolet box (2) was irradiated for 1 day. The ultraviolet radiation intensity under the vacuum environment is 7W/m through the experiment2340nm ultraviolet light of (1) A day of the No. 110 asphalt sample.
Example two
Putting a No. 90 asphalt sample with the thickness of 10mm into the middle position of a base 4, putting a sealing ring 5 in a groove, covering a cover body assembly to be tightly attached to the sealing ring 5, and sleeving a light shield 3 on the outer side of the cover body assembly; connecting a vacuum pump 9 with the lead-out channel by using a vacuum tube 7, starting the vacuum pump 9 to remove air in the aging box, checking the vacuum degree by using a vacuum meter, closing a valve 6 after the aging box is completely vacuum, and taking away the vacuumAfter the filter 2 with the passable wavelength of 320nm is placed in the aging box body after the tube 7, the box body is integrally placed in the aging box body, and the ultraviolet radiation intensity of the filter 2 with the passable wavelength of 320nm is set to be 14W/m2The inside of the ultraviolet box was irradiated for 3 days. The ultraviolet radiation intensity under the vacuum environment is 14W/m through the experiment2320nm uv light three days aged 90 pitch sample.
EXAMPLE III
Putting a No. 90 asphalt sample with the thickness of 10mm into the middle position of a base 4, putting a sealing ring 5 in a groove, covering a cover body assembly to be tightly attached to the sealing ring 5, and sleeving a light shield 3 on the outer side of the cover body assembly; the vacuum pump 9 is connected with the leading-out channel by the vacuum tube 7, the vacuum pump 9 is started to remove air in the aging box, the vacuum degree is checked by the vacuum meter at the same time, the valve 6 is closed after the aging box is completely vacuumized, the filter 2 with the accessible wavelength of 360nm is placed in the aging box after the vacuum tube 7 is taken away, and the box is placed into the aging box integrally, and the ultraviolet radiation intensity of the filter 2 with the accessible wavelength of 360nm is set to be 7W/m2The ultraviolet box was irradiated for 9 days. The ultraviolet radiation intensity under the vacuum environment is 7W/m through the experiment2320nm uv light aged for seven days for No. 90 asphalt sample.
Example four
Putting a No. 70 asphalt sample with the thickness of 10mm into the middle position of a base 4, putting a sealing ring 5 in a groove, covering a cover body assembly to be tightly attached to the sealing ring 5, and sleeving a light shield 3 on the outer side of the cover body assembly; connecting a vacuum pump 9 with a leading-out channel by using a vacuum tube 7, starting the vacuum pump 9 to remove air in the aging box, checking the vacuum degree by using a vacuum meter, closing a valve 6 after the aging box is completely vacuumized, taking away the vacuum tube 7, putting a filter 2 with a passable wavelength of 400nm into the aging box, putting the box into the aging box integrally, setting the ultraviolet radiation intensity of 14W/m under the condition of the filter 2 with the passable wavelength of 400nm2The UV chamber was irradiated for twelve days. The ultraviolet radiation intensity under the vacuum environment is 14W/m through the experiment2400nm UV aged twelve days for No. 70 asphalt sample.
It should be noted that the above is only a preferred embodiment of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the embodiments, it will be apparent to those skilled in the art that the technical solutions described in the foregoing embodiments can be modified or some technical features can be replaced with equivalents, but any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (8)
1. A multifunctional asphalt aging experimental device is characterized by comprising an aging box body, a vacuum tube and a vacuum pump; the aging box body is of a closed structure and is made of glass; the lower part of the aging box body is communicated with one end of a vacuum tube, and the other end of the vacuum tube is communicated with a vacuum pump; a vacuum meter and a vacuum degree regulator are arranged on the vacuum tube; the asphalt is arranged in the aging box body.
2. The multifunctional asphalt aging experimental device as claimed in claim 1, wherein the aging box body is of a closed structure and comprises a base and a cover body assembly arranged on the base; the base and the cover body component form a box body with a cavity inside; the base and the cover body assembly are respectively made of glass.
3. The multifunctional asphalt aging experimental device as claimed in claim 2, wherein bosses are arranged on the peripheral edges of the base, and grooves are arranged on the bosses; the cover body assembly comprises an upper cover and four side plates which are fixed on the periphery of the upper cover and enclose the upper cover, the upper cover and the four side plates are of an integrated structure, and the lower ends of the four side plates are inserted into the grooves; the upper cover body, the four side plates and the base enclose to form an aging box body.
4. The multifunctional asphalt aging experimental device as claimed in claim 3, wherein a filter is laid on the surface of the upper cover.
5. The multifunctional asphalt aging experimental device as claimed in claim 3, wherein the base is internally provided with an extraction channel, the inlet end of the extraction channel is communicated with the inside of the aging box body, and the extraction channel penetrates out of the lower part of the boss and then is communicated with the vacuum tube through a valve.
6. The multifunctional asphalt aging experimental device as claimed in claim 3, wherein a sealing ring is arranged at the bottom of the groove; the lower end of the side plate is arranged on the sealing ring.
7. The multifunctional asphalt aging test device as claimed in claim 3, wherein the connection part of the upper cover, the groove and the sealing ring is frosted.
8. The multifunctional asphalt aging test device as claimed in claim 3, wherein a light shield is provided outside the side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920964071.1U CN210376078U (en) | 2019-06-25 | 2019-06-25 | Multifunctional asphalt aging experimental device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920964071.1U CN210376078U (en) | 2019-06-25 | 2019-06-25 | Multifunctional asphalt aging experimental device |
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| CN210376078U true CN210376078U (en) | 2020-04-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208173A (en) * | 2019-06-25 | 2019-09-06 | 武汉理工大学 | A kind of Multifunctional asphalt senile experiment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110208173A (en) * | 2019-06-25 | 2019-09-06 | 武汉理工大学 | A kind of Multifunctional asphalt senile experiment device |
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