Solid asphalt detection apparatus and system

Abstract

The utility model discloses a kind of solid asphalt detection equipment and system, it is related to detection equipment technical field, the solid asphalt detection equipment includes test table, magnetic field generating device, rheological property tester, base and support frame;The test table is located on the base, and is used to load test sample;The bottom end of the support frame is fixed on the base, the top end of the support frame is connected with the rheological property tester and is used to support the rheological property tester, so that the rheological property tester is located above the test table;The magnetic field generating device includes two groups of permanent magnet modules, the two groups of permanent magnet modules are separately arranged on the two sides of the test table, so that the two groups of permanent magnet modules form magnetic field on the test table. By using the utility model, the rheological parameter of sample under different magnetic field intensity can be measured quickly.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a solid asphalt testing equipment and system. Background Technology

[0002] In road construction, building waterproofing, and other projects, the performance of asphalt directly affects the quality and service life of the project. However, existing asphalt testing methods mainly face the following challenges:

[0003] I. Distorted test results

[0004] Traditional asphalt testing often involves repeated heating of asphalt samples, failing to adequately consider the asphalt's sensitivity to heat and lacking effective techniques to prevent heat aging. For example, in conducting tests such as asphalt penetration and softening point, multiple heating processes are necessary due to sample preparation and testing procedures. During heating, the asphalt undergoes chemical reactions such as oxidation and polymerization, altering its chemical composition and physical structure, leading to changes in performance. This results in test data that cannot accurately reflect the actual performance of the asphalt, impacting engineering quality assessment and material selection.

[0005] II. Inaccurate on-site observations

[0006] Existing methods for observing the aging of asphalt under on-site curing are also quite limited. Most of them rely on visual observation and simple hardness tests, which cannot accurately obtain changes in the internal structure and properties of asphalt and thus cannot provide accurate aging information.

[0007] III. Low detection efficiency

[0008] The repeated heating process is time-consuming, and coupled with the limitations of existing on-site observation methods, the entire detection process is inefficient and cannot meet the needs of rapid engineering development.

[0009] As can be seen from the above, traditional asphalt testing focuses on macroscopic performance testing, neglecting microstructural changes and the impact of heating on asphalt performance, and does not fundamentally solve the problems of repeated heating and on-site observation; at the same time, traditional asphalt testing is not only inefficient, but also has large errors in test results, making it difficult to meet the actual needs of engineering. Utility Model Content

[0010] The technical problem to be solved by this utility model is to provide a simple solid asphalt testing device and system that can quickly measure the rheological parameters of samples under different magnetic field intensities.

[0011] To address the aforementioned technical problems, this utility model provides a solid asphalt testing device, comprising: a test platform, a magnetic field generating device, a rheological performance tester, a base, and a support frame; the test platform is mounted on the base and used to load test samples; the bottom end of the support frame is fixed to the base, and the top end of the support frame is connected to the rheological performance tester and used to support the rheological performance tester, so that the rheological performance tester is positioned above the test platform; the magnetic field generating device includes two sets of permanent magnet modules, which are respectively disposed on both sides of the test platform, so that the two sets of permanent magnet modules form a magnetic field on the test platform.

[0012] As an improvement to the above scheme, each group of permanent magnet modules includes at least one permanent magnet.

[0013] As an improvement to the above solution, the permanent magnet has a ring structure, and the radial direction of the permanent magnet is located in a vertical plane.

[0014] As an improvement to the above scheme, the center of the permanent magnet and the test surface of the test platform are on the same plane.

[0015] As an improvement to the above solution, the bottom of the test bench is provided with a lifting mechanism, which is used to adjust the height of the test surface of the test bench.

[0016] As an improvement to the above solution, the magnetic field generating device further includes an adjustment mechanism, which is used to adjust the distance between the two sets of permanent magnet modules and / or adjust the angle of the two permanent magnets.

[0017] As an improvement to the above solution, the adjustment mechanism includes a slide groove on the base, two positioning members, and two sliding members in the slide groove; the permanent magnet module corresponds one-to-one with the positioning member and the sliding member, the permanent magnet module is located on the corresponding positioning member, and the positioning member is located on the corresponding sliding member and moves synchronously with the sliding member along the slide groove.

[0018] As an improvement to the above solution, the slide includes at least one transverse slide and two longitudinal slides that are interconnected, with the two longitudinal slides located at both ends of the transverse slide.

[0019] As an improvement to the above solution, the adjustment mechanism further includes two rotating parts, and the sliding part and the positioning part are connected by the rotating parts.

[0020] Accordingly, this utility model also provides a solid asphalt testing system, which includes a heating device, a stirrer, a sample mold, and the aforementioned solid asphalt testing equipment.

[0021] The beneficial effects of implementing this utility model are as follows:

[0022] This invention combines a magnetic field generator with a rheological performance tester. The magnetic field generator produces different magnetic field intensities, and the rheological performance tester detects the viscosity, shear stress, and other rheological properties of the sample under different magnetic field intensities, thus meeting the actual needs of users.

[0023] Meanwhile, this utility model is small in size, easy to carry, and simple to operate, which can meet the needs of rapid testing on the engineering site;

[0024] Furthermore, this invention can effectively change the superposition effect of the magnetic field by adjusting the spatial arrangement (such as distance, angle, relative position, etc.) between permanent magnets, thereby adjusting the magnetic field strength. Attached Figure Description

[0025] Figure 1 Main view of an embodiment of the solid asphalt testing equipment of this utility model;

[0026] Figure 2 A perspective view of an embodiment of the solid asphalt testing equipment of this utility model;

[0027] Figure 3 This is a schematic diagram of an embodiment of the permanent magnet in this utility model;

[0028] Figure 4 This is a schematic diagram of the first embodiment of the adjusting mechanism in this utility model;

[0029] Figure 5 This is a schematic diagram of an embodiment of the slide groove in this utility model;

[0030] Figure 6 This is a schematic diagram of the second embodiment of the adjustment mechanism in this utility model. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings. It is hereby declared that the terms "up," "down," "left," "right," "front," "back," "inner," and "outer," etc., appearing or about to appear in this document, are based solely on the accompanying drawings and are not intended to specifically limit this utility model.

[0032] See Figure 1 and Figure 2 , Figure 1 and Figure 2 The specific structure of the solid asphalt testing equipment of this utility model is shown, which includes a test platform 1, a magnetic field generating device 2, a rheological performance tester 3, a base 4, and a support frame 5, specifically:

[0033] The test stand 1 is mounted on the base 4 and is used to load the test sample;

[0034] The bottom end of the support frame 5 is fixed to the base 4, and the top end of the support frame 5 is connected to the rheological performance tester 3 and used to support the rheological performance tester 3 so that the rheological performance tester 3 is placed above the test bench 1.

[0035] The magnetic field generating device 2 includes two sets of permanent magnet modules 21, which are respectively arranged on both sides of the test platform 1 so that the two sets of permanent magnet modules 21 form a magnetic field on the test platform 1.

[0036] Unlike existing technologies, this invention combines a magnetic field generating device 2 with a rheological performance tester 3. The magnetic field generating device 2 generates different magnetic field intensities, and the rheological performance tester 3 detects the viscosity, shear stress, and other rheological properties of the sample under different magnetic field intensities.

[0037] Preferably, the rheological performance tester 3 can be a rheometer, but this is not a limitation, as long as it can perform the testing of rheological performance.

[0038] In this embodiment, each group of permanent magnet modules 21 includes at least one permanent magnet. In practical applications, users can adjust the magnetic field strength by increasing or decreasing the number of permanent magnets.

[0039] like Figure 3 As shown, the permanent magnet has a circular ring structure, and the radial direction of the permanent magnet is in a vertical plane.

[0040] In this embodiment, the outer diameter D1 of the permanent magnet is 15cm, the inner diameter D2 is 13cm, and the thickness is 2cm, but this is not a limitation. In practical applications, users can adjust the magnetic field strength by replacing permanent magnets of different sizes.

[0041] In order to make full use of the permanent magnet, it is necessary to ensure that the center of the permanent magnet and the test surface of the test platform 1 are on the same plane.

[0042] More preferably, the bottom of the test stage 1 is provided with a lifting mechanism 6, which can flexibly adjust the height of the test surface of the test stage 1 to ensure that the magnetic field strength of the sample is more stable and concentrated.

[0043] Furthermore, the magnetic field generating device 2 also includes an adjustment mechanism, which is used to adjust the distance between the two sets of permanent magnet modules 21 and / or adjust the angle of the two permanent magnets.

[0044] It should be noted that by adjusting the spatial arrangement of permanent magnets (such as distance, angle, relative position, etc.), the superposition effect of the magnetic field can be effectively changed, thereby adjusting the magnetic field strength.

[0045] like Figure 4As shown, the adjustment mechanism includes a slide groove 7 on the base 4, two positioning elements 8, and two sliding elements 9 in the slide groove 7; the permanent magnet module 21 corresponds one-to-one with the positioning elements 8 and the sliding elements 9. The permanent magnet module 21 is fixed on the corresponding positioning element 8, while the positioning element 8 is on the corresponding sliding element 9 and moves synchronously with the sliding element 9 along the slide groove 7.

[0046] Therefore, through the cooperation of the slide groove 7, the sliding member 9, and the positioning member 8, the relative position between the two sets of permanent magnet modules 21 can be changed, thereby achieving adjustment of the magnetic field strength. The sliding member 9 is preferably a pulley structure, and the positioning member 8 is preferably a slot structure to secure the permanent magnet.

[0047] Generally, the closer the two sets of permanent magnet modules 21 are, the stronger the magnetic field superposition; the farther the two sets of permanent magnet modules 21 are, the weaker the magnetic field strength.

[0048] like Figure 5 As shown, the slide 7 includes at least one transverse slide 71 and two longitudinal slides 72 that are interconnected, with the two longitudinal slides 72 located at both ends of the transverse slide 71.

[0049] The axial distance between the two sets of permanent magnet modules 21 can be adjusted by the transverse slide groove 71, and the radial distance between the two sets of permanent magnet modules 21 can be adjusted by the longitudinal slide groove 72, thereby realizing the adjustment of relative position and distance from multiple directions.

[0050] like Figure 6 As shown, the adjustment mechanism also includes two rotating parts 10, and the sliding part 9 and the positioning part 8 are connected by the rotating parts 10.

[0051] The angle of the permanent magnet module 21 can be adjusted by rotating component 10, thereby changing the direction of the magnetic poles of the permanent magnet module 21 (such as changing the angle between the magnetization directions), adjusting the vector superposition effect of the magnetic field, and ultimately changing the strength of the synthesized magnetic field.

[0052] Therefore, the magnetic field strength on the test platform 1 can be flexibly changed through this utility model, which facilitates the rheological performance tester 3 to detect the viscosity, shear stress and other rheological properties of the sample under different magnetic field strengths.

[0053] Accordingly, this utility model also provides a solid asphalt testing system, which includes a heating device, a stirrer, a sample mold, and the aforementioned solid asphalt testing equipment, specifically:

[0054] The heating device is used to heat the asphalt sample to a flowable state;

[0055] The agitator is used to mix magnetic powder with asphalt samples in a fluid state.

[0056] The sample mold is used to load the mixed magnetic powder and the asphalt sample in a fluid state; the mixed sample in the standard sample mold is rapidly cooled and solidified at room temperature to form a magnetorheological asphalt composite material sample.

[0057] The magnetic field generator 2 in the solid asphalt testing equipment is used to generate different magnetic field intensities;

[0058] The rheological property tester 3 in the solid asphalt testing equipment is used to measure the rheological parameters of magnetorheological asphalt composite material samples under different magnetic field intensities.

[0059] During the process, a suitable amount of asphalt sample is first taken from the asphalt in the field and heated to a flowable state using a heating device. Then, magnetic powder is added to the flowable asphalt sample according to a preset ratio, and the asphalt sample and magnetic powder are stirred for 10-15 minutes using a stirrer at a speed of 2000-3000 rpm to ensure that the magnetic powder is evenly dispersed in the flowable asphalt sample, forming a mixed sample. Next, the mixed sample is poured into a standard sample mold and rapidly cooled and solidified at room temperature to form a magnetorheological asphalt composite material sample. Subsequently, the magnetorheological asphalt composite material sample is... The sample is placed on the test bench 1. The state (number, position, and angle) of the two sets of permanent magnet modules 21 in the magnetic field generating device 2 is adjusted to make the initial magnetic field strength 0.5 Tesla. Then, the initial viscosity and initial shear stress of the magnetorheological asphalt composite material sample are collected by the rheological performance tester 3. Next, the state of the two sets of permanent magnet modules 21 is adjusted to gradually increase the magnetic field strength by 0.5 Tesla each time. Under each magnetic field strength, the corresponding viscosity and shear stress are measured by the rheological performance tester 3, and the changes in rheological parameters under different magnetic field strengths are recorded to provide technical support for the subsequent on-site aging assessment of the asphalt.

[0060] As can be seen from the above, this utility model is small in size, easy to carry, and simple to operate, which can meet the needs of rapid testing on engineering sites. At the same time, this utility model can accurately measure the changes in the rheological properties of asphalt through the magnetorheological effect. The testing process only requires heating once, which can provide technical support for the subsequent on-site assessment of the aging of asphalt.

[0061] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A solid asphalt testing device, characterized in that, Includes a test stand, a magnetic field generator, a rheological performance tester, a base, and a support frame; The test stand is mounted on the base and is used to load the test sample; The bottom end of the support frame is fixed to the base, and the top end of the support frame is connected to the rheological performance tester and is used to support the rheological performance tester so that the rheological performance tester is positioned above the test platform. The magnetic field generating device includes two sets of permanent magnet modules, which are respectively arranged on both sides of the test platform to form a magnetic field on the test platform.

2. The solid asphalt testing equipment as described in claim 1, characterized in that, Each set of permanent magnet modules includes at least one permanent magnet.

3. The solid asphalt testing equipment as described in claim 2, characterized in that, The permanent magnet has a circular ring structure, and the radial direction of the permanent magnet is located in a vertical plane.

4. The solid asphalt testing equipment as described in claim 3, characterized in that, The center of the permanent magnet and the test surface of the test platform are on the same plane.

5. The solid asphalt testing equipment as described in claim 1 or 3, characterized in that, The bottom of the test bench is equipped with a lifting mechanism, which is used to adjust the height of the test surface of the test bench.

6. The solid asphalt testing equipment as described in claim 1, characterized in that, The magnetic field generating device also includes an adjustment mechanism, which is used to adjust the distance between the two sets of permanent magnet modules and / or adjust the angle of the two permanent magnets.

7. The solid asphalt testing equipment as described in claim 6, characterized in that, The adjustment mechanism includes a slide groove on the base, two positioning members, and two sliding members disposed within the slide groove; The permanent magnet module corresponds one-to-one with the positioning component and the sliding component. The permanent magnet module is located on the corresponding positioning component, and the positioning component is located on the corresponding sliding component and moves synchronously with the sliding component along the slide groove.

8. The solid asphalt testing equipment as described in claim 7, characterized in that, The slide includes at least one transverse slide and two longitudinal slides that are interconnected, with the two longitudinal slides located at both ends of the transverse slide.

9. The solid asphalt testing equipment as described in claim 7, characterized in that, The adjustment mechanism also includes two rotating parts, and the sliding part and the positioning part are connected by the rotating parts.

10. A solid asphalt testing system, characterized in that, It includes a heating device, a stirrer, a sample mold, and the solid asphalt testing equipment as described in any one of claims 1 to 9.

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