CN209784144U - Automatic dry-wet cycle test device for asphalt mixture under salt corrosion condition - Google Patents
Automatic dry-wet cycle test device for asphalt mixture under salt corrosion condition Download PDFInfo
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- CN209784144U CN209784144U CN201920558179.0U CN201920558179U CN209784144U CN 209784144 U CN209784144 U CN 209784144U CN 201920558179 U CN201920558179 U CN 201920558179U CN 209784144 U CN209784144 U CN 209784144U
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Abstract
an automatic dry-wet cycle test device for asphalt mixture under a salt corrosion condition comprises a test box, wherein a temperature control box is arranged at the upper part of the test box, a water tank is arranged at the lower part of the test box, the top of the temperature control box is connected with a test piece box through a vertically arranged telescopic rod, and a net-shaped pore structure is arranged on a box body of the test piece box; a test piece is placed in the test piece box, a salt etching solution is injected into the water tank, and the test piece box can be immersed into the salt etching solution in the water tank under the driving of the telescopic rod; a telescopic heat insulation layer is arranged between the temperature control box and the water tank, and a heating pipe and an air blower are arranged in the temperature control box. The test box is provided with a control device, and the control device is connected with the telescopic rod, the heating pipe and the air blower. And a temperature sensor and a timer which are connected with the control device are arranged in the temperature control box. And a concentration sensor and an automatic stirrer which are connected with the control device are arranged in the water tank. The utility model discloses simple structure, convenient operation can effectively be applied to bituminous mixture's durability test.
Description
Technical Field
The utility model relates to a durability test field of bituminous mixture marshall test piece, concretely relates to automatic wet cycle test device futilely of bituminous mixture under salt loses the condition for research salt loses and does wet condition coupling to bituminous mixture's influence futilely.
Background
In the current practical working environment, the asphalt mixture is mostly subjected to the combined action of salt corrosion and dry-wet cycle conditions, and the salt corrosion effect coupled with the dry-wet cycle conditions has a serious influence on the durability of the asphalt mixture.
The conventional dry-wet cycle test device has many disadvantages due to its special configuration: firstly, a manual carrying mode is adopted, and a test piece can be damaged in a carrying process; secondly, the dry-wet cycle test device cannot automatically set drying and soaking time, and needs to manually operate the instrument for multiple times, so that time cost and energy are increased; and the water tank is fixed on the test box, so that the cleaning is inconvenient.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the problem among the above-mentioned prior art, provide an automatic dry and wet cycle test device of bituminous mixture under the salt loses the condition, simple structure, convenient operation can effectively be applied to bituminous mixture's durability test.
In order to realize the purpose, the utility model discloses a technical scheme be:
The device comprises a test box, wherein a temperature control box is arranged at the upper part of the test box, a water tank is arranged at the lower part of the test box, the top of the temperature control box is connected with a test piece box through a vertically arranged telescopic rod, and a box body of the test piece box is provided with a mesh pore structure; a test piece is placed in the test piece box, a salt etching solution is injected into the water tank, and the test piece box can be immersed into the salt etching solution in the water tank under the driving of the telescopic rod; a telescopic heat insulation layer is arranged between the temperature control box and the water tank, and a heating pipe and an air blower are arranged in the temperature control box.
The test box is provided with a control device, and the control device is connected with the telescopic rod, the heating pipe and the air blower.
And a temperature sensor and a timer which are connected with the control device are arranged in the temperature control box.
And a concentration sensor and an automatic stirrer which are connected with the control device are arranged in the water tank.
An upper limiter is arranged in the temperature control box, a lower limiter is arranged in the water tank, and the upper limiter and the lower limiter are connected with a control device to control the ascending and descending positions of the test piece box.
The bottom of the water tank is provided with a plurality of rollers which are convenient for the water tank to move into or out of the test chamber.
A plurality of test pieces are arranged in the test piece box at intervals, and the distance between the test pieces is 20 mm.
The distance between the test piece and the side wall of the test piece box is not less than 20 mm.
The test piece box is driven by the telescopic rod to be immersed into the salt etching solution at least 20mm below the liquid level.
Compared with the prior art, the utility model discloses following beneficial effect has:
Can carry out effectual temperature control to the test piece in the test piece box through setting up the temperature control box, arrange heating pipe and air-blower in the middle of the temperature control box, be favorable to salt erosion solution fast drying on the test piece, make the test piece box dip in the middle of the salt erosion solution of water tank through the telescopic link during use, after soaking, the telescopic link rises and makes the test piece break away from the water tank, after the test piece box breaks away from the water tank and gets into the temperature control box, scalable heat preservation insulating layer extends to and seals the temperature control box, the air-blower is opened, test piece in the test piece box is air-dried, air-dry after finishing, the heating pipe starts immediately, heat up the test piece, begin the drying process, after drying, adopt the air-blower to cool off the test piece, scalable heat preservation insulating layer shrink, the. The utility model discloses can circulate and carry out the dry wet test of bituminous mixture under the salt loses the condition, effectively be applied to its durability test.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
In the drawings: 1-test chamber; 2, a telescopic rod; 3-a temperature sensor; 4-heating a tube; 5-upper limiter; 6-a timer; 7-a control device; 8-a lower limiter; 9-a roller; 10-a concentration sensor; 11-automatic stirrer; 12-a water tank; 13-a telescopic heat insulation layer; 14-a blower; 15-test piece box; 16-a temperature control box; 17-test piece.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the utility model discloses automatic dry-wet cycle test device of bituminous mixture under salt corrosion condition structurally includes proof box 1, test piece box 15, telescopic link 2, water tank 12, controlling means 7 etc. and temperature control case 16 and telescopic link 2 are installed on proof box 1 upper portion, are close to the upper end position and are close to the lower extreme position and install stopper 5 respectively and lower stopper 8, and water tank 12 is placed to inside downside, and externally mounted has controlling means 7 and time-recorder 6. The temperature sensor 3 is installed on the upper portion of the temperature control box 16, the lower layer is a telescopic heat insulation layer 13, the heating pipe 4 is installed on the inner wall, and the air blower 14 is installed on the outer wall. The test piece box 15 is connected with the telescopic rod 2, the upper part of the test piece box is open, and the bottom and the side parts of the test piece box are of net-shaped pore structures. A concentration sensor 10 and an automatic stirrer 11 are arranged in the water tank 12, and a plurality of rollers 9 are arranged at the lower end of the water tank 12. The control device 7 is connected with the temperature control box 16, the telescopic rod 2, the temperature sensor 3, the concentration sensor 10, the automatic stirrer 11, the upper stopper 5, the lower stopper 8 and the timer 6.
The utility model discloses automatic change wet cycle test device futilely when using, take out water tank 12 from proof box 1's inside earlier, then put into test piece 17 on test piece box 15, should keep 20mm interval between the adjacent test piece 17, and the distance of test piece 17 and test piece box lateral wall is not less than 20 mm. After a test piece 17 is placed in a test piece box 15, adding a solution with a certain concentration into a water tank 12, placing the water tank 12 into a test box 1, placing a concentration sensor 10 into the water tank 12 for concentration monitoring, then controlling a telescopic rod 2 to enable the test piece box 15 to descend into the water tank 12, enabling the liquid level of the solution in the water tank 12 to exceed at least 20mm of the surface of the uppermost test piece 17, then beginning to soak, after soaking is finished, lifting the telescopic rod 2 to enable the test piece 17 to be separated from the water tank 12, after the test piece box 15 is separated from the water tank 12 and enters a temperature control box 16, stretching a telescopic heat insulation layer 13 to the temperature control box 16 for sealing, starting an air blower 14, air-drying the test piece 17 in the test piece box 15, immediately starting a heating pipe 4 after air-drying is finished, heating the test piece; after drying, the test piece 17 is cooled by the air blower 14, the telescopic heat insulation layer 13 contracts, and the test piece box 15 descends into the water tank 12 to enter the next dry-wet cycle process. When the designed dry-wet cycle times reach or the concentration is monitored by the concentration sensor 10 to have large changes, the test is stopped, and the dry-wet cycle times are automatically recorded.
The above embodiments are merely exemplary and should not be construed as limiting the present invention, and those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention and also fall within the protection scope.
Claims (9)
1. The utility model provides an automatic dry-wet cycle test device of bituminous mixture under salt loses condition which characterized in that: the device comprises a test box (1), wherein a temperature control box (16) is arranged at the upper part of the test box (1), a water tank (12) is arranged at the lower part of the test box (1), the top of the temperature control box (16) is connected with a test piece box (15) through a vertically arranged telescopic rod (2), and a net-shaped pore structure is formed on a box body of the test piece box (15); a test piece (17) is placed in the test piece box (15), a salt corrosion solution is injected into the water tank (12), and the test piece box (15) can be driven by the telescopic rod (2) to be immersed into the salt corrosion solution in the water tank (12); a telescopic heat insulation layer (13) is arranged between the temperature control box (16) and the water tank (12), and a heating pipe (4) and an air blower (14) are arranged in the temperature control box (16).
2. The automatic dry-wet cycle test device for the asphalt mixture under the salt corrosion condition of claim 1 is characterized in that: the test box (1) is provided with a control device (7), and the control device (7) is connected with the telescopic rod (2), the heating pipe (4) and the air blower (14).
3. The automatic dry-wet cycle test device for the asphalt mixture under the salt corrosion condition of claim 2 is characterized in that: and a temperature sensor (3) and a timer (6) which are connected with the control device (7) are arranged in the temperature control box (16).
4. The automatic dry-wet cycle test device for the asphalt mixture under the salt corrosion condition of claim 2 is characterized in that: the water tank (12) is internally provided with a concentration sensor (10) and an automatic stirrer (11) which are connected with the control device (7).
5. The automatic dry-wet cycle test device for the asphalt mixture under the salt corrosion condition of claim 2 is characterized in that: an upper limiter (5) is arranged in the temperature control box (16), a lower limiter (8) is arranged in the water tank (12), and the upper limiter (5) and the lower limiter (8) are connected with a control device (7) to control the ascending and descending positions of the test piece box (15).
6. The automatic dry-wet cycle test device for the asphalt mixture under the salt corrosion condition of claim 1 is characterized in that: the bottom of the water tank (12) is provided with a plurality of rollers (9) which are convenient for the water tank (12) to move into or out of the test box (1).
7. The automatic dry-wet cycle test device for the asphalt mixture under the salt corrosion condition of claim 1 is characterized in that: a plurality of test pieces (17) are arranged in the test piece box (15) at intervals, and the distance between the test pieces (17) is 20 mm.
8. The automatic dry-wet cycle test device for the asphalt mixture under the salt corrosion condition of claim 1 is characterized in that: the distance between the test piece (17) and the side wall of the test piece box (15) is not less than 20 mm.
9. The automatic dry-wet cycle test device for the asphalt mixture under the salt corrosion condition of claim 1 is characterized in that: the test piece box (15) is driven by the telescopic rod (2) to be immersed into the salt etching solution for at least 20mm below the liquid level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920558179.0U CN209784144U (en) | 2019-04-23 | 2019-04-23 | Automatic dry-wet cycle test device for asphalt mixture under salt corrosion condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920558179.0U CN209784144U (en) | 2019-04-23 | 2019-04-23 | Automatic dry-wet cycle test device for asphalt mixture under salt corrosion condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209784144U true CN209784144U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920558179.0U Expired - Fee Related CN209784144U (en) | 2019-04-23 | 2019-04-23 | Automatic dry-wet cycle test device for asphalt mixture under salt corrosion condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209784144U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866080A (en) * | 2021-09-28 | 2021-12-31 | 太原理工大学 | Test device and test method for simulating salt corrosion damage of porous medium material |
| CN114047080A (en) * | 2021-11-16 | 2022-02-15 | 内蒙古工业大学 | Concrete beam loading device under sulfate soaking and continuous load coupling effect |
-
2019
- 2019-04-23 CN CN201920558179.0U patent/CN209784144U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866080A (en) * | 2021-09-28 | 2021-12-31 | 太原理工大学 | Test device and test method for simulating salt corrosion damage of porous medium material |
| CN113866080B (en) * | 2021-09-28 | 2023-12-05 | 太原理工大学 | Salt corrosion damage test device and method for simulating porous medium material |
| CN114047080A (en) * | 2021-11-16 | 2022-02-15 | 内蒙古工业大学 | Concrete beam loading device under sulfate soaking and continuous load coupling effect |
| CN114047080B (en) * | 2021-11-16 | 2023-12-08 | 内蒙古工业大学 | Concrete beam loading device under coupling action of sulfate soaking and continuous load |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20191213 Termination date: 20210423 |