CN216926468U - Test device for measuring fusion performance of regenerant and asphalt - Google Patents
Test device for measuring fusion performance of regenerant and asphalt Download PDFInfo
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- CN216926468U CN216926468U CN202220401804.2U CN202220401804U CN216926468U CN 216926468 U CN216926468 U CN 216926468U CN 202220401804 U CN202220401804 U CN 202220401804U CN 216926468 U CN216926468 U CN 216926468U
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- 239000010426 asphalt Substances 0.000 title claims abstract description 72
- 238000012360 testing method Methods 0.000 title claims abstract description 49
- 239000012492 regenerant Substances 0.000 title claims abstract description 24
- 230000004927 fusion Effects 0.000 title claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 41
- 238000002156 mixing Methods 0.000 claims abstract description 30
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 238000004140 cleaning Methods 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 238000004064 recycling Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract 1
- 235000013547 stew Nutrition 0.000 description 10
- 238000005259 measurement Methods 0.000 description 7
- 230000008929 regeneration Effects 0.000 description 7
- 238000011069 regeneration method Methods 0.000 description 7
- 230000032683 aging Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model relates to a test device for measuring the fusion performance of a regenerant and asphalt, which comprises a mixing part, a standing and subpackaging part, a first Brinell viscosity measuring part, a second Brinell viscosity measuring part, a temperature heating system and an information display and control system, wherein the mixing part is used for stirring and mixing aged asphalt and the regenerant; the standing and subpackaging part is used for storing the regenerated asphalt and transferring the upper layer and the lower layer of the regenerated asphalt to different Brookfield viscometer measuring parts; the first Brinell viscosity measuring part and the second Brinell viscosity measuring part are used for respectively measuring the apparent viscosity of the upper layer recycled asphalt and the lower layer recycled asphalt; the temperature heating system is used for heating the regenerated asphalt mixing part and the standing and subpackaging part; and the information display and control system is used for displaying the test data in the whole device and controlling the whole device. The method can improve the test accuracy, save labor, reduce material loss, save test time and realize the function of detecting the performance index of the regenerated asphalt.
Description
Technical Field
The utility model belongs to the field of asphalt regeneration tests, and particularly relates to a test device for determining fusion performance of a regenerant and asphalt.
Background
In recent years, the regeneration technology of the aged asphalt is more and more emphasized, the regeneration of the aged asphalt is mainly characterized in that a regenerant is added, the component of the regenerant is mainly an oily component which is easy to volatilize in the aging process of the asphalt, and in the actual application process, due to the influence of the components of the asphalt, the asphalt and the regenerant are easy to separate and layer after being mixed, so that the regeneration technology is very important for detecting the performance of the asphalt mixed with the regenerant.
In the actual test operation process, the process needing manual operation is relatively dangerous, and the operation difficulty is relatively high during manual detection. In the mixing process to pitch and regenerant, if the misoperation will lead to pitch and regenerant to mix inadequately, cause the test result inaccurate, in addition conventional method is to pitch mixing performance detection, need carry out low temperature and high temperature treatment, the operation is complicated, and may influence some performances of pitch, simultaneously in the performance testing process after mixing, pitch temperature drops very fast, lead to the pitch sample to glue thick, be difficult to carry out the detection achievement of performance, need carry out the secondary heating to the sample, and the repeated heating of pitch can aggravate the ageing of pitch sample, influence the test result.
Disclosure of Invention
The utility model aims to provide a test device for rapidly measuring the fusion performance of a regenerant and asphalt, which can solve the problems in the background art and has the following effects: make pitch and regenerant mix more fully under the condition that keeps experimental temperature, made things convenient for the reposition of redundant personnel of upper and lower layer pitch, test testing process convenient and fast, easily operation prevent that low temperature and repeated heating process from to pitch sample performance's influence, reduce the manual operation process simultaneously, the test data is quick accurate, also guarantees personal safety simultaneously.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a survey regenerant and asphalt fusion performance's test device, it includes the mix part, the partial shipment of stewing, first brinell viscosity survey part, second brinell viscosity survey part and temperature heating system, wherein, the partial shipment of stewing is located the lower part of mix part, be linked together through bottom control valve and mix part, first brinell viscosity survey part and second brinell viscosity survey part homoenergetic are linked together with the partial shipment of stewing, wherein first brinell viscosity survey part is linked together through first control valve and the upper portion of the partial shipment of stewing, second brinell viscosity survey part is located first brinell viscosity survey part below, and be connected with the partial right lower part of the partial shipment of stewing through the second control valve, temperature heating system is located the partial all around inner wall position of stewing, for mix part and the partial heating of stewing partial shipment.
Two feed inlets are arranged at the uppermost part of the mixing part, and both the two feed inlets can be communicated with the outside;
the mixing part comprises a stirring blade and a motor, the motor is fixed to the upper part of the mixing part, and the stirring blade is positioned at the lower part of the motor and is connected with the motor through a connecting rod.
The bottom control valve in the above-mentioned mixing part is located mixing part bottom position, and the mixing part is connected to the bottom control valve and the partial shipment part that stews, and the mixed liquid gets into the partial shipment part that stews through the bottom control valve after the stirring of mixing part.
The first control valve is located in the middle position of the right side of the standing and subpackaging part and communicated with the first Brinell viscosity measuring part, and the second control valve is located in the bottommost position of the left side of the standing and subpackaging part and communicated with the second Brinell viscosity measuring part.
The standing split charging part also comprises a cleaning liquid discharge port control valve, the cleaning liquid discharge port control valve is positioned at the outer side of the bottommost position on the right side of the standing chamber and communicated with the outside through a pipeline, and the cleaning liquid discharged out of the cleaning device is used for cleaning the cleaning device.
The second Brinell viscosity measuring part and the first Brinell viscosity measuring part are identical in structure and function, wherein the first Brinell viscosity measuring part is used for measuring the viscosity data of the upper-layer recycled asphalt, and the second Brinell viscosity measuring part is used for measuring the viscosity data of the lower-layer recycled asphalt.
The viscosity meter is fixedly arranged at the upper part of the first Brinell viscosity measuring part, the asphalt information receiving and outputting part is positioned on the viscosity meter and used for transmitting viscosity data, and the rotor is positioned at the lower part of the viscosity meter and connected with the viscosity meter through a rotating shaft of the viscosity meter and used for measuring the viscosity of the regenerated asphalt.
The first Brinell viscosity measuring part also comprises a temperature controller, a sample containing cylinder and a mass measuring system, wherein the sample containing cylinder is arranged at the upper part of the mass measuring system and the lower part of the viscosity meter, the left side of the sample containing cylinder is connected with the first control valve through a pipeline, and the rotor is positioned at the middle part of the sample containing cylinder; the quality measuring system is arranged at the lower part of the sample containing cylinder and is in direct contact with the sample containing cylinder; the first control valve is controlled in time by measuring the quality of the regenerated asphalt in the sample containing cylinder, so that the quality of the regenerated asphalt in the sample containing cylinder meets the requirements of test conditions.
The temperature controller is arranged on the outer wall of the sample containing cylinder, and an electromagnetic heating wire is arranged in the temperature controller and used for heating the regenerated asphalt.
The temperature heating system is positioned at the periphery of the standing and subpackaging part, and electromagnetic heating wires are arranged in the temperature heating system and used for uniformly heating the standing and subpackaging part and the stirring part.
The utility model has the beneficial effects that:
(1) the electromagnetic heating wires are arranged in the temperature heating system and are arranged at the outer side positions around the standing and subpackaging part, so that the heating function can be continuously provided for the stirring part and the standing and subpackaging part, the secondary aging of asphalt caused by temperature change is prevented, and the regeneration effect of the aged asphalt is prevented from being influenced due to uneven heating caused by the position problem of the electromagnetic heating wires.
(2) This device design scientific and reasonable realizes the initiative rotation of stirring leaf under the drive of motor, makes the synchronous revolution of ageing pitch and regenerant, can realize the abundant integration of regenerant and pitch, reduces the insufficient mixing problem that artificial stirring probably arouses. After the mixed liquid enters the standing and subpackaging part through the bottom control valve after stirring, the temperature heating system can ensure that the regenerated asphalt does not change in temperature within the standing time, so that the test result is accurate and reliable.
(3) The standing and subpackaging part is connected with the Brookfield viscosity measuring part through the left middle control valve and the right lower control valve, so that the apparent viscosities of the upper layer and the lower layer of the regenerated asphalt are detected under the condition that the temperature change of the regenerated asphalt is avoided, the fusion condition of the regenerant and the asphalt is evaluated by judging whether the apparent viscosity data of the upper layer and the lower layer of the regenerated asphalt are different, the fusion performance of the regenerant and the asphalt is measured safely and efficiently, and the risk of manual operation is reduced.
(3) The method optimizes the step of measuring the Brookfield viscosity, realizes real-time control of the quality of the regenerated asphalt in the sample holding cylinder by combining the quality measuring system with the first control valve and the second control valve, and realizes the purpose of quickly measuring the apparent viscosity.
(4) The utility model has simple structure, easy processing and low manufacturing cost, and is suitable for popularization and use.
Drawings
FIG. 1 is a schematic diagram of the principles of the present invention;
FIG. 2 is a schematic structural diagram of one proposed implementation of the present invention;
fig. 3 is a three-dimensional cross-sectional view of fig. 2.
Description of reference numerals: 1-a mixing section; 101-a motor; 102-stirring blade; 103-bottom control valve; 2-standing and subpackaging; 201-a first control valve; 202-a second control valve; 203-cleaning liquid discharge port control valve; 3-a first brookfield viscosity measurement section; 301-information receiving and output section; 302-a viscometer; 303-a rotor; 304-a temperature controller; 305-sample containing cylinder; 306-a mass measurement system; 4-a second brookfield viscosity measurement section; 5-temperature heating system; 6-information display and control system; 601-information receiving and processing part; 602-a turnkey center; 603-information display section.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings, in order that the present disclosure may be more fully understood and fully conveyed to those skilled in the art. While the exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the disclosure is not limited to the embodiments set forth herein.
Referring to fig. 1 to 3, the present invention provides a testing apparatus for determining a blending performance of a recycling agent and asphalt, including a mixing portion 1, a standing and dispensing portion 2, a first brookfield viscosity determining portion 3, a second brookfield viscosity determining portion 4, and a temperature heating system 5.
The partial 2 of partial 1 lower part of dress that stews is located the mix, be linked together with mix part 1 through bottom control valve 103, first brucelly viscosity survey part 3 and second brucelly viscosity survey part 4 homoenergetic and the partial 2 of dress that stews are linked together, wherein first brucelly viscosity survey part 3 is linked together through first control valve 201 and the upper portion of the partial 2 of dress that stews, second brucelly viscosity survey part 4 is located first brucelly viscosity survey part 3 below, and be connected with the partial 2 right lower parts of dress that stews through second control valve 202, temperature heating system 5 is located the partial all around inner wall position of the partial of dress that stews, for mix part 1 and the partial 2 heats of the partial 2 of dress that stews.
The device respectively measures the apparent viscosities of the upper layer and the lower layer of the regenerated asphalt through the first Brinell viscosity measuring part 3 and the second Brinell viscosity measuring part 4, displays the apparent viscosities of the upper layer and the lower layer of the regenerated asphalt through the information receiving and processing part 601, and then evaluates the fusion performance condition of the regenerant and the asphalt by judging whether the apparent viscosities of the upper layer and the lower layer of the regenerated asphalt are different or not through the information display part 603.
The uppermost part of the mixing part 1 is provided with two feed inlets which can be communicated with the outside.
The mixing part 1 comprises a stirring blade 102 and a motor 101, wherein the motor 101 is fixed on the upper part of the mixing part 1, and the stirring blade 102 is positioned on the lower part of the motor 101 and is connected with the motor 101 through a connecting rod. The stirring part 1 provides driving force by means of a motor 101, and drives the stirring blades 102 to rotate at a constant speed through connecting rods so as to mix aged asphalt and a regenerant.
The motor 101 in the stirring part is a commercially available product, the stirring speed and the stirring time of the motor 101 are set by a program in the master control center 602, the stirring time and the stirring speed of the regenerant and the aged asphalt are one of key factors influencing the regeneration effect of the regenerated asphalt, according to related experience, the stirring speed is set to be 50r/min, and the stirring time is set to be 30 min.
The first control valve 201 is located at the middle position of the right side of the standing and packaging part 2 and is communicated with the first Brinell viscosity measurement part 3, and the second control valve 202 is located at the bottommost position of the left side of the standing and packaging part 2 and is communicated with the second Brinell viscosity measurement part 4. The standing and subpackaging part 2 further comprises a cleaning liquid discharge port control valve 203, the cleaning liquid discharge port control valve 203 is positioned at the outer side of the bottommost position on the right side of the standing chamber and communicated with the outside through a pipeline, and the cleaning liquid discharged out of the device after the cleaning device is used.
The bottom control valve 103, the first control valve 201, the second control valve 202 and the cleaning liquid discharge port control valve 203 are all purchased existing products, the switching sequence of the four is regulated and controlled by the master control center 602, after stirring is completed, the bottom control valve 103 is automatically opened, the stirred regenerated asphalt enters the standing and subpackaging part 2, the bottom control valve 103 is closed, after standing for 48 hours, the first control valve 201 is automatically opened, other control valves are all in a closed state at the moment, after the regenerated asphalt enters the first Brinell viscosity measuring part 3 and reaches the specified quality, the first control valve 201 is closed, the second control valve 202 is opened, the lower layer regenerated asphalt enters the second Brinell viscosity measuring part 4, and after the specified quality is reached, the second control valve 202 is closed. The cleaning liquid discharge port control valve 203 is automatically opened only when the apparatus enters the cleaning mode and the cleaning is completed.
The second Brinell viscosity measuring part 4 and the first Brinell viscosity measuring part 3 are identical in structure and function, wherein the first Brinell viscosity measuring part 3 is used for measuring the viscosity data of the upper-layer recycled asphalt, and the second Brinell viscosity measuring part 4 is used for measuring the viscosity data of the lower-layer recycled asphalt.
The viscosity meter 302 is fixedly arranged at the upper part of the first Brinell viscosity measuring part 3, the asphalt information receiving and outputting part 301 is positioned on the viscosity meter 302 and connected with the viscosity meter 302 for information transmission, and the rotor 303 is positioned at the lower part of the viscosity meter 302 and connected with the viscosity meter 302 through a rotating shaft of the viscosity meter for measuring the viscosity of the regenerated asphalt. Viscometer 302 uses an existing model HB series brookfield viscometer.
The device is provided with the channel switch in first brookfield viscosity survey part 3 and the second brookfield viscosity survey part 4 outside, after the experiment, can take out rotor 303 and flourishing appearance section of thick bamboo 305 for the interior regeneration pitch of the flourishing appearance section of thick bamboo of clearance.
The first brookfield viscosity measuring part 3 further comprises a temperature controller 304, a sample container 305 and a mass measuring system 306, wherein the sample container 305 is arranged at the upper part of the mass measuring system 306 and the lower part of the viscosity meter 302, the left side of the sample container 305 is connected with the first control valve 201 through a pipeline, and the rotor 303 is arranged at the middle part of the sample container; the mass measurement system 306 is arranged at the lower position of the sample holding cylinder 305 and is in direct contact with the sample holding cylinder 305; the first control valve 201 is controlled in time by measuring the quality of the regenerated asphalt in the sample holding cylinder, so that the quality of the regenerated asphalt in the sample holding cylinder 305 meets the requirement of test conditions.
The mass measurement system 306 has a mass sensor therein, and mass data obtained by the mass sensor can be transmitted to the information display portion 603 in real time.
The temperature controller 304 is arranged at the position of the outer wall of the sample holding cylinder 305, and an electromagnetic heating wire is arranged inside the sample holding cylinder for heating the regenerated asphalt.
Before the detection task is carried out, the temperature controller starts the heating mode 2h in advance, the heat preservation time of the sample containing barrel and the rotor is not less than 1.5h, and in addition, the asphalt to be detected is still required to be preserved after being added into the sample containing barrel, so that the balance temperature (not less than 15min) required by the test is reached, and then the viscosity is measured.
The temperature heating system 5 is positioned at the position of one circle outside the standing split charging part 2, and electromagnetic heating wires are arranged in the temperature heating system and used for uniformly heating the standing split charging part 2 and the stirring part 1.
Before the stirring task is carried out, the temperature heating system 5 starts a heating mode 0.5h in advance, and the mixing part 1 and the standing split charging part 2 are guaranteed to reach the specified test temperature before the test starts.
Claims (10)
1. A test device for testing the fusion performance of a regenerant and asphalt comprises a mixing part (1), a standing split charging part (2), a first Brinell viscosity testing part (3), a second Brinell viscosity testing part (4) and a temperature heating system (5),
the standing and subpackaging part (2) is located on the lower portion of the mixing part (1), and is communicated with the mixing part (1) through a bottom control valve (103), a first Brinell viscosity measuring part (3) and a second Brinell viscosity measuring part (4) can be communicated with the standing and subpackaging part (2), wherein the first Brinell viscosity measuring part (3) is communicated with the upper portion of the standing and subpackaging part (2) through a first control valve (201), the second Brinell viscosity measuring part (4) is located below the first Brinell viscosity measuring part (3), and is connected with the right lower portion of the standing and subpackaging part (2) through a second control valve (202), and the temperature heating system (5) is located on the periphery of the standing and subpackaging part (2) and heats the mixing and subpackaging part (1) and the standing and subpackaging part (2).
2. The testing device for testing the fusion performance of the recycling agent and the asphalt according to claim 1, wherein: two feed inlets are arranged at the uppermost part of the mixing part (1), and both the two feed inlets can be communicated with the outside;
the mixing part (1) comprises a stirring blade (102) and a motor (101);
the motor (101) is fixed on the upper part of the mixing part (1), and the stirring blade (102) is positioned on the lower part of the motor (101) and is rotationally connected with the connecting rod of the motor (101).
3. The test device for testing the fusion performance of the regenerant and the asphalt according to claim 2, wherein the test device comprises: bottom control valve (103) in mix part (1) are located mix part (1) bottom position, and mix part (1) and partial (2) of partial standing are connected to bottom control valve (103), and the mixed liquid gets into partial (2) of partial standing through bottom control valve (103) after mix part (1) stirring.
4. The testing device for testing the fusion performance of the recycling agent and the asphalt according to claim 1, wherein: the first control valve (201) is located at the middle position of the right side of the standing and subpackaging part (2) and is communicated with the first Brinell viscosity measuring part (3), and the second control valve (202) is located at the bottommost position of the left side of the standing and subpackaging part (2) and is communicated with the second Brinell viscosity measuring part (4).
5. The test device for testing the fusion performance of the regenerant and the asphalt according to claim 4, wherein the test device comprises: the standing and subpackaging part (2) further comprises a cleaning solution discharge port control valve (203), the cleaning solution discharge port control valve (203) is positioned at the outer side of the bottommost position on the right side of the standing and subpackaging part (2) and communicated with the outside through a pipeline, and the cleaning solution is discharged out of the device after the cleaning device.
6. The testing device for testing the fusion performance of the recycling agent and the asphalt according to claim 1, wherein: the second Brinell viscosity measuring part (4) and the first Brinell viscosity measuring part (3) are identical in structure and function, wherein the first Brinell viscosity measuring part (3) is used for measuring the viscosity data of the upper-layer recycled asphalt, and the second Brinell viscosity measuring part (4) is used for measuring the viscosity data of the lower-layer recycled asphalt.
7. The testing device for testing the fusion performance of the recycling agent and the asphalt according to claim 6, wherein: the viscosity meter (302) is fixedly installed at the upper part of the first Brinell viscosity measuring part (3), the asphalt information receiving and outputting part (301) is located on the viscosity meter (302) and used for transmitting viscosity data, and the rotor (303) is located on the lower part of the viscosity meter (302), is connected with the viscosity meter (302) through a rotating shaft of the viscosity meter and is used for measuring the viscosity of the regenerated asphalt.
8. The testing device for testing the fusion performance of the recycling agent and the asphalt according to claim 6, wherein: the first Brinell viscosity measuring part (3) further comprises a temperature controller (304), a sample containing cylinder (305) and a mass measuring system (306), wherein the sample containing cylinder (305) is arranged at the upper part of the mass measuring system (306) and the lower part of the viscosity meter (302), the left side of the sample containing cylinder is connected with the first control valve (201) through a pipeline, and the rotor (303) is arranged at the middle position of the sample containing cylinder; the quality measuring system (306) is arranged at the lower position of the sample containing cylinder (305) and is directly contacted with the sample containing cylinder (305); the quality of the regenerated asphalt in the sample containing barrel (305) is measured to timely control the first control valve (201) so that the quality of the regenerated asphalt in the sample containing barrel (305) meets the requirement of test conditions.
9. The testing device for testing the fusion performance of the recycling agent and the asphalt according to claim 8, wherein: the temperature controller (304) is arranged at the position of the outer wall of the sample containing barrel (305), and an electromagnetic heating wire is arranged inside the sample containing barrel and used for heating the regenerated asphalt.
10. The testing device for testing the fusion performance of the recycling agent and the asphalt according to claim 1, wherein: the temperature heating system (5) is located at the periphery of the standing split charging part (2), and electromagnetic heating wires are arranged in the temperature heating system and used for uniformly heating the standing split charging part (2) and the mixing part (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220401804.2U CN216926468U (en) | 2022-02-25 | 2022-02-25 | Test device for measuring fusion performance of regenerant and asphalt |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220401804.2U CN216926468U (en) | 2022-02-25 | 2022-02-25 | Test device for measuring fusion performance of regenerant and asphalt |
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| CN216926468U true CN216926468U (en) | 2022-07-08 |
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| CN202220401804.2U Expired - Fee Related CN216926468U (en) | 2022-02-25 | 2022-02-25 | Test device for measuring fusion performance of regenerant and asphalt |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115235950A (en) * | 2022-07-22 | 2022-10-25 | 四川省公路规划勘察设计研究院有限公司 | Method for evaluating compatibility of regenerant and aged asphalt |
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2022
- 2022-02-25 CN CN202220401804.2U patent/CN216926468U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115235950A (en) * | 2022-07-22 | 2022-10-25 | 四川省公路规划勘察设计研究院有限公司 | Method for evaluating compatibility of regenerant and aged asphalt |
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