CN220455112U - Testing device for measuring asphalt cohesion - Google Patents
Testing device for measuring asphalt cohesion Download PDFInfo
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- CN220455112U CN220455112U CN202321724962.2U CN202321724962U CN220455112U CN 220455112 U CN220455112 U CN 220455112U CN 202321724962 U CN202321724962 U CN 202321724962U CN 220455112 U CN220455112 U CN 220455112U
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- asphalt
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- 239000010426 asphalt Substances 0.000 title claims abstract description 48
- 238000012360 testing method Methods 0.000 title claims abstract description 37
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000005259 measurement Methods 0.000 claims abstract description 18
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 10
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 10
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 238000001514 detection method Methods 0.000 abstract description 3
- 239000000523 sample Substances 0.000 description 13
- 239000000853 adhesive Substances 0.000 description 9
- 230000001070 adhesive effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 230000035515 penetration Effects 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to the technical field of highway engineering asphalt tests, in particular to a test device for measuring asphalt cohesion, which comprises: the device comprises a synthesis box body, a constant-temperature water tank and a pressurizing measurement structure, wherein the constant-temperature water tank and the pressurizing measurement structure are arranged at the upper end of the synthesis box body, a control panel is fixedly arranged on the side wall of one end of the synthesis box body, and three groups of display screens are arranged on the control panel; a limiting sleeve is arranged in the constant-temperature water tank, a lantern ring is sleeved on the outer wall of the limiting sleeve, and a first supporting rod and a second supporting rod are fixedly arranged on the outer wall of the lantern ring respectively; the temperature stability during measurement of the asphalt adhesion force can be guaranteed through the constant-temperature water tank, the stability of pressure can be guaranteed through the air pressure control device by adopting the external air pump, the adhesion force of asphalt can be rapidly measured through the pressurization measurement structure, and the accuracy of a detection result can be guaranteed through multiple measurement data.
Description
Technical Field
The utility model relates to the technical field of highway engineering asphalt tests, in particular to a test device for measuring asphalt cohesion.
Background
The mechanical strength of the asphalt mixture is composed of the embedding and extruding force (internal friction resistance) among mineral aggregate particles, the adhesive force between asphalt and aggregate and the cohesive force of asphalt. The cohesive strength of asphalt is closely related to the mechanical strength of asphalt mixtures. At present, three major indexes (penetration index, softening point and ductility) are mainly adopted as the detection indexes of asphalt in a construction site laboratory, and the penetration index, the softening point, the ductility, the viscosity, the solubility, the density, the film heating test or the rotating film heating test and the like are mainly adopted as the detection indexes of the asphalt in the current specifications, wherein the penetration asphalt has the consistency under a certain condition, the ductility reflects the low-temperature cracking resistance of the asphalt, the softening point, the dynamic viscosity at 60 ℃ and the rotating viscosity at 135 ℃ reflect the viscosity of the asphalt under a certain condition, the film heating test or the rotating film test reflects the ageing resistance of the asphalt, and the indexes reflect the self-performance of the asphalt and cannot intuitively reflect the cohesive strength of the asphalt and cannot reflect the functions of the asphalt in a mixture.
The evaluation method for the asphalt cohesion mainly comprises a force measurement ductility method, an adhesion impact pendulum test, an atomic force microscope method and the like. The testing method is that the force generated when a test piece is stretched is measured on the basis of the conventional ductility test, and the asphalt is under the action of a compression shear force in an asphalt mixture, so that the result is greatly different from the actual stress state of the asphalt; the adhesive force impact pendulum test is to smear asphalt with certain mass on a serrated support, test the adhesive force of the asphalt by adopting the adhesive force impact pendulum, and calculate the adhesive force of the asphalt according to the measured peak angle by using the kinetic energy principle; the test is that the support is placed in the oven for heat preservation, the support is taken out from the oven for placement on the testing device during the test, the temperature cannot be accurately controlled, and the asphalt is in a natural smearing state, so that the measured cohesive force of the support is greatly different from the stress state of the asphalt in the actual asphalt mixture, and more reflects the shearing resistance of the asphalt at different temperatures; the adhesion force between the tip of the atomic force probe and the asphalt is measured by an atomic force microscope method, the testing principle is that the atomic force interaction force between the tip of the probe and the surface of a sample is measured at a microscopic interface, when the method is used for testing modified asphalt, the modified asphalt is easily affected by uneven distribution of a modifier, the correlation between test data and a macroscopic test is poor, and the method is expensive in instrument, complex in operation and not suitable for popularization and use.
Disclosure of Invention
The utility model aims to provide a test device for measuring asphalt cohesion, which is used for solving the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a test device for determining asphalt cohesion, comprising: the device comprises a synthesis box body, a constant-temperature water tank and a pressurizing measurement structure, wherein the constant-temperature water tank and the pressurizing measurement structure are arranged at the upper end of the synthesis box body, a control panel is fixedly arranged on the side wall of one end of the synthesis box body, and three groups of display screens are arranged on the control panel;
a limiting sleeve is arranged in the constant-temperature water tank, a lantern ring is sleeved on the outer wall of the limiting sleeve, and a first supporting rod and a second supporting rod are fixedly arranged on the outer wall of the lantern ring respectively;
one end of the first support rod and one end of the second support rod, which are far away from the lantern ring, are respectively clamped with the side wall of the upper port of the constant-temperature water tank through the first clamping plate and the second clamping plate.
Preferably, the constant temperature water tank is made of stainless steel and internally provided with a sample support, and the support is made of stainless steel and provided with a through hole with the diameter of 1 cm.
Preferably, the control panel is respectively provided with a temperature display screen, an adhesion force display screen and an air pressure display screen.
Preferably, the lower ends of the three groups of display screens are respectively and independently provided with a control button and an indicator lamp, and the control buttons and the indicator lamps are respectively and electrically connected with the three groups of display screens.
Preferably, a baffle ring is fixedly arranged on the outer wall of the upper port of the limit sleeve, and the inner diameter of the lantern ring is larger than the limit sleeve and smaller than the baffle ring.
Preferably, the first support rod and the second support rod are respectively provided with two support rods, and are symmetrically and fixedly arranged on the outer wall of the lantern ring.
Preferably, the first clamping plate and the second clamping plate are U-shaped, the inner walls of the first clamping plate and the second clamping plate are clamped with the outer wall of the upper port of the constant-temperature water tank, a hand-screwed bolt is connected to the outer wall of one end of the second clamping plate in a threaded manner, and the front end of the hand-screwed bolt is in contact with the outer wall of the constant-temperature water tank.
Compared with the prior art, the utility model has the beneficial effects that:
can provide a temperature-controllable, pressure-controllable pitch adhesion power testing arrangement, temperature stability when can guaranteeing pitch adhesion power measurement through constant temperature basin, adopt external air pump to guarantee pressure's stability through atmospheric pressure controlling means, can survey pitch adhesion power fast through the pressurization measurement structure, can guarantee the accuracy of testing result through many times measurement data.
Drawings
FIG. 1 is a right side view of the overall structure of the present utility model;
FIG. 2 is a left side view of the overall structure of the present utility model;
fig. 3 is a schematic view of the structure of the stop collar of the present utility model during installation.
In the figure: 1. synthesizing a box body; 2. a control panel; 3. a temperature display screen; 4. an adhesive force display screen; 5. an air pressure display screen; 6. a control button; 7. an indicator light; 9. a constant temperature water tank; 10. a limit sleeve; 11. a baffle ring; 12. a collar; 13. a first support rod; 14. a clamping plate I; 15. a second support rod; 16. a second clamping plate; 17. screwing the bolt by hand; 101. a pressurized measurement structure.
Detailed Description
In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.
In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.
Referring to fig. 1 to 3, the present utility model provides a technical solution: a test device for determining asphalt cohesion, comprising: the device comprises a synthesis box body 1, a constant temperature water tank 9 and a pressurizing and measuring structure 101 (the prior art, the pressurizing and measuring structure 101 comprises a barometer, an adjusting knob and a pressure head structure, air pressurization is adopted, an external air pump is needed for air supply), the constant temperature water tank 9 and the pressurizing and measuring structure 101 are both arranged at the upper end of the synthesis box body 1, a control panel 2 is fixedly arranged on one end side wall of the synthesis box body 1, three groups of display screens are arranged on the control panel 2, the constant temperature water tank 9 is made of stainless steel, a sample bracket is placed inside the constant temperature water tank 9, the bracket is made of stainless steel and provided with a through hole with the diameter of 1cm, and a heating structure inside the constant temperature water tank 9 is electrically connected with the control panel 2;
the constant temperature basin 9 is internally provided with a stop collar 10, the outer wall of the stop collar 10 is sleeved with a collar 12, the outer wall of the collar 12 is fixedly provided with a first supporting rod 13 and a second supporting rod 15 respectively, the stop collar 10 is used for Cheng Fangcheng sample containers, a pressurizing measurement structure 101 is arranged right above the sample containers, the pressurizing measurement structure 101 can bond a pressure head and samples in the sample containers by certain air pressure, the pressure measurement structure can rotate clockwise at a certain rotating speed and collect torque, the stop collar 10 is cylindrical with a bottom and is made of stainless steel, three holes with threads and screws are equidistantly arranged at a position 1cm away from the lower end of a base and are used for fixing the sample containers, the inner diameter of the sample containers is 55mm, the outer diameter of the sample containers is 56mm, the depth of the sample containers is 35mm, the height is 10mm away from the bottom, and a groove with the diameter of 2mm is arranged at intervals of 3 positions and is used for being matched with the stop collar 10 to fix the sample containers.
The control panel 2 is respectively provided with a temperature display screen 3, an adhesion display screen 4 and an air pressure display screen 5, the lower ends of the three groups of display screens are respectively and independently provided with a control button 6 and an indicator lamp 7, the control button 6 and the indicator lamp 7 are respectively and electrically connected with the three groups of display screens, and the three groups of display screens are electrically connected with the control panel 2.
One end that the lantern ring 12 was kept away from to bracing piece one 13 and bracing piece two 15 is respectively through cardboard one 14 and cardboard two 16 and the last port lateral wall joint of constant temperature basin 9, fixed mounting has baffle ring 11 on the last port outer wall of stop collar 10, the internal diameter of lantern ring 12 is greater than stop collar 10 and just under baffle ring 11, bracing piece one 13 and bracing piece two 15 are equipped with two respectively, and symmetrical fixed mounting is on the outer wall of lantern ring 12, cardboard one 14 and cardboard two 16 all are the U-shaped, the inner wall of cardboard one 14 and cardboard two 16 and the last port outer wall joint of constant temperature basin 9, and threaded connection has hand to twist bolt 17 on the one end outer wall of cardboard two 16, the front end of hand to twist bolt 17 contacts with the outer wall of constant temperature basin 9, fix stop collar 10 on the last port outer wall of constant temperature basin 9.
When the device works, the operation of the constant temperature water tank 9 can be controlled through the temperature display screen 3 on the control panel 2, so that the accuracy of the test temperature is ensured; the running of the pressurizing measurement structure 101 is controlled by adopting the air pressure display screen 5 through an external air pump, the stability of the loading pressure is ensured, the test result can be displayed on the adhesive force display screen 4, the defects that the existing asphalt adhesive force measurement equipment is expensive, the temperature and the pressure are uncontrollable and the actual stress is not consistent are overcome through the matched running of the structure, and the rapid, condition-controllable and accurate asphalt adhesive force measurement device is provided.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A test device for determining asphalt cohesion, comprising: synthetic box (1), constant temperature basin (9) and pressurization measurement structure (101) all install the upper end at synthetic box (1), its characterized in that: a control panel (2) is fixedly arranged on the side wall of one end of the synthesis box body (1), and three groups of display screens are arranged on the control panel (2);
a limiting sleeve (10) is arranged in the constant-temperature water tank (9), a lantern ring (12) is sleeved on the outer wall of the limiting sleeve (10), and a first supporting rod (13) and a second supporting rod (15) are fixedly arranged on the outer wall of the lantern ring (12) respectively;
one end of the first supporting rod (13) and one end of the second supporting rod (15) far away from the lantern ring (12) are respectively clamped with the side wall of the upper port of the constant-temperature water tank (9) through the clamping plate I (14) and the clamping plate II (16).
2. The test device for determining asphalt cohesion of claim 1, wherein: the constant temperature water tank (9) is made of stainless steel, a sample support is placed in the constant temperature water tank, and the support is made of stainless steel and provided with a through hole with the diameter of 1 cm.
3. The test device for determining asphalt cohesion of claim 1, wherein: the control panel (2) is respectively provided with a temperature display screen (3), a cohesive force display screen (4) and an air pressure display screen (5).
4. The test device for determining asphalt cohesion of claim 1, wherein: the lower ends of the three groups of display screens are respectively and independently provided with a control button (6) and an indicator lamp (7), and the control button (6) and the indicator lamp (7) are respectively and electrically connected with the three groups of display screens.
5. The test device for determining asphalt cohesion of claim 4, wherein: the stop ring (11) is fixedly mounted on the outer wall of the upper port of the limit sleeve (10), and the inner diameter of the collar (12) is larger than the limit sleeve (10) and smaller than the stop ring (11).
6. The test device for determining asphalt cohesion of claim 5, wherein: the first support rod (13) and the second support rod (15) are respectively provided with two support rods and are symmetrically and fixedly arranged on the outer wall of the lantern ring (12).
7. The test device for determining asphalt cohesion of claim 6, wherein: the clamping plate I (14) and the clamping plate II (16) are U-shaped, the inner walls of the clamping plate I (14) and the clamping plate II (16) are clamped with the outer wall of the upper port of the constant-temperature water tank (9), a hand-screwed bolt (17) is connected to the outer wall of one end of the clamping plate II (16) in a threaded manner, and the front end of the hand-screwed bolt (17) is in contact with the outer wall of the constant-temperature water tank (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321724962.2U CN220455112U (en) | 2023-07-04 | 2023-07-04 | Testing device for measuring asphalt cohesion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321724962.2U CN220455112U (en) | 2023-07-04 | 2023-07-04 | Testing device for measuring asphalt cohesion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220455112U true CN220455112U (en) | 2024-02-06 |
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ID=89734496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321724962.2U Active CN220455112U (en) | 2023-07-04 | 2023-07-04 | Testing device for measuring asphalt cohesion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220455112U (en) |
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2023
- 2023-07-04 CN CN202321724962.2U patent/CN220455112U/en active Active
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