A device for forming a new-old asphalt mortar double-layer test piece in a scanning electron microscope test

Abstract

The application provides a new-old asphalt mortar double-layer test piece forming device in a scanning electron microscope test, which comprises a base, a movable mold connected to the top of the base, one side of the movable mold being slidably connected to the top of the base and the other side of the movable mold being abutted against the base, a cutting assembly slidably connected to the top of the movable mold, the cutting assembly being used for cutting asphalt forming test pieces, a movable assembly slidably connected to the center of the movable mold, the base and the movable mold being surrounded by the movable assembly to form an upper cavity, and the movable assembly and the movable mold being surrounded by the base to form a lower cavity, which is used for the forming and cutting of asphalt test pieces. The new-old asphalt mortar double-layer test piece forming device has the advantages of simple structure, convenience in forming double-layer asphalt test samples and guarantee of the flatness of the cross section of the asphalt mortar double-layer test piece.

Description

Technical Field

[0001] This invention relates to the field of asphalt testing mold technology, and in particular to a device for forming a double-layer specimen of new and old asphalt mortar in scanning electron microscopy testing. Background Technology

[0002] Currently, my country's highway construction has entered a period of comprehensive major and medium-scale maintenance. The large amount of milled waste asphalt pavement material generated during this maintenance process is a significant factor restricting regional economic development and environmental protection. Therefore, promoting the high-value recycling and comprehensive application of waste materials has become an important trend in the future development of the road transportation industry. For waste asphalt pavement materials, aged asphalt adheres to the surface of old aggregates in the form of a thin film. During the recycling process, the new asphalt or recycling agent added continuously diffuses into the aged asphalt mastic and mixes with it, thus achieving miscible recycling. The miscibility and degree of the new asphalt and aged asphalt mastic determine the performance of the recycled asphalt mixture. High-precision testing equipment is necessary to investigate the miscibility behavior of these two materials in both engineering applications and scientific research.

[0003] In the field of road asphalt materials, scanning electron microscopy (SEM) can provide a direct evaluation of the structural composition, surface morphology, and interface state of asphalt materials. To test the miscibility of new and aged asphalt mastic, it is necessary to prepare a double-layer contact specimen of new and aged asphalt mastic and observe the cross-section of the recycled asphalt mastic after its mixing and diffusion. However, current specimen preparation methods cannot directly form double-layer specimens of new and aged asphalt mastic suitable for SEM testing, and suffer from drawbacks such as large dimensional errors, cumbersome operation procedures, and uneven cross-sections that make it difficult to meet observation requirements, easily leading to unclear interface images and invalid test data. Currently, there is no suitable device for forming double-layer specimens of new and aged asphalt mastic for SEM testing. Specimens prepared using existing methods often fail to meet observation standards, requiring repeated rework, thus reducing the accuracy and efficiency of specimen testing. Summary of the Invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of this invention is to provide a device for forming a double-layer specimen of new and old asphalt mastic in scanning electron microscopy. The device has a simple structure, is easy to form double-layer asphalt specimens, and ensures the flatness of the cut surface of the double-layer asphalt mastic specimen.

[0005] To achieve the above objectives, the present invention provides the following solution: a device for forming a double-layer specimen of new and old asphalt mastic in scanning electron microscopy, comprising a base, a movable mold connected above the base, one side of the movable mold being slidably connected above the base, and the other side of the movable mold being close to the base, a cutting component being slidably connected above the movable mold, the cutting component being used to cut the asphalt specimen, a movable component being slidably connected to the center of the movable mold, the base and the movable mold being joined together above the movable component to form an upper cavity, and the movable component and the movable mold being joined together below the base to form a lower cavity, for forming and cutting the asphalt specimen.

[0006] Preferably, a slide rail is provided above the base, and the slide rail is slidably connected to the lower part of the movable mold.

[0007] Preferably, the top of the movable mold is provided with a slide and a side baffle structure, and the cutting assembly is connected to the slide for moving on the movable mold.

[0008] Preferably, the outer surface of the movable mold is marked with scale lines, and the cutting component can be moved or disassembled on the movable mold according to the scale lines.

[0009] Preferably, the movable mold has a centrally embedded slide rail, and the bottom end of the embedded slide rail is connected to a protective partition.

[0010] Preferably, the cutting assembly includes an outer support frame slidably connected above the movable mold, a cutting blade connected to the inner side of the outer support frame for supporting and sliding the cutting blade, and a handle connected above the cutting blade and the top of the outer support frame for controlling the movement of the cutting blade.

[0011] Preferably, the outer surface of the outer support frame is marked with blade graduation lines, and the cutting blade can move inside the outer support frame according to the blade graduation lines.

[0012] Preferably, the movable component includes a movable plate slidably connected to the center of the movable mold, one end of the movable plate is connected to a pull ring, and the other end is telescopically connected to a slide rail in the middle of the movable mold.

[0013] Preferably, the movable plate can slide in the middle of the movable mold via the pull ring for mixing new and old asphalt.

[0014] Preferably, the pull ring consists of a pull ring handle, a pull ring connecting ball, and a pull ring inner ball. The pull ring handle passes through the pull ring connecting ball, the pull ring connecting ball is partially hollow and is connected to the pull ring inner ball in a circular manner, so that the pull ring can rotate around the center. The other end of the pull ring inner ball is connected to the movable plate.

[0015] According to the above-described technical solution provided by the present invention, the present invention discloses the following technical effects:

[0016] This invention provides a device for forming double-layer specimens of new and old asphalt mastic in scanning electron microscopy (SEM) experiments. Through a rational structural design, a movable mold and a base are enclosed on a movable plate to form an upper cavity, while the movable plate and the movable mold are enclosed on the base to form a lower cavity. Asphalt specimens can be formed and cut within these cavities. This invention offers advantages such as facilitating the forming of double-layer recycled asphalt mastic specimens, ensuring smooth and observable cut surfaces, and a simpler device structure. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a device for forming a double-layer specimen of new and old asphalt mortar in a scanning electron microscope test, provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the assembly of the base, movable mold and movable plate in a scanning electron microscope test device for forming a double-layer specimen of new and old asphalt mastic.

[0020] Figure 3 This invention provides a schematic diagram of the cutting disc working in a scanning electron microscope (SEM) apparatus for forming a double-layer specimen of new and old asphalt mastic.

[0021] Figure 4 This is a schematic diagram of the assembly of the pull ring in a double-layer specimen molding device for new and old asphalt mastic in a scanning electron microscope test, provided in an embodiment of the present invention.

[0022] Figure 5 A schematic cross-sectional view of a device for forming a double-layer specimen of new and old asphalt mortar in a scanning electron microscope test, provided for an embodiment of the present invention.

[0023] Figure Labels

[0024] 1-Handle, 2-Cutter blade, 3-Outer support frame, 4-Movable mold, 5-Base, 6-Movable plate, 7-Pull ring, 8-Scale line, 9-Pull ring handle, 10-Pull ring connecting ball, 11-Pull ring inner ball, 101-Upper cavity, 102-Lower cavity. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] The purpose of this invention is to provide a device for forming a double-layer specimen of new and old asphalt mastic in scanning electron microscopy. The device has a simple structure, facilitates the forming of double-layer asphalt specimens, and ensures the flatness of the cut surface of the double-layer asphalt mastic specimen.

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] like Figure 1 , Figure 2 As shown, the present invention provides a device for forming a double-layer specimen of new and old asphalt mastic in scanning electron microscopy, including a base 5, a movable mold 4 connected above the base 5, one side of the movable mold 4 being slidably connected above the base 5, and the other side being close to the base 5, a cutting component being slidably connected above the movable mold 4, the cutting component being used to cut the asphalt molded specimen, and a movable component being slidably connected to the center of the movable mold 4.

[0030] The base 5 has a slide rail on its upper part, which is slidably connected to the lower part of the movable mold 4. The movable mold 4 has a slide block and side baffle structure on its top, and the cutting assembly is connected to the slide block for movement on the movable mold. The outer surface of the movable mold 4 is marked with scale lines 8, allowing the cutting assembly to move or disassemble on the movable mold 4 according to these scale lines. A slide rail is embedded in the center of the movable mold 4, and a protective partition is connected to the bottom of the embedded slide rail to prevent irregular molding of the asphalt specimen due to improper removal of the movable plate 6.

[0031] Specifically, such as Figure 3 As shown, the cutting assembly includes an outer support frame 3 slidably connected above the movable mold. A cutting blade 2 is connected to the inner side of the outer support frame 3 for supporting and sliding the cutting blade 2. A handle 1 is connected to the top of the cutting blade 2 and the top of the outer support frame 3 for controlling the movement of the cutting blade 2. The outer surface of the outer support frame 3 is marked with blade graduation lines, and the cutting blade 2 can move inside the outer support frame 3 according to the blade graduation lines.

[0032] More specifically, the movable component includes a movable plate 6 slidably connected to the center of the movable mold. One end of the movable plate 6 is connected to a pull ring 7, and the other end is retractably connected to a slide rail in the middle of the movable mold 4. The movable plate 6 can slide in the middle of the movable mold 4 via the pull ring 7 for mixing new and old asphalt. Figure 4 As shown, the pull ring 7 consists of a pull ring handle 9, a pull ring connecting ball 10, and a pull ring inner ball 11. The pull ring handle 9 passes through the pull ring connecting ball 10. The pull ring connecting ball 10 is partially hollow and is connected to the pull ring inner ball 11 in a circular manner, so that the pull ring 7 can rotate around the center. The other end of the pull ring inner ball 11 is connected to the movable plate 6.

[0033] Furthermore, such as Figure 5 As shown, the movable plate 6 is movably connected to the movable mold 4. The movement of the movable plate 6 is controlled by the pull ring 7, thereby dividing the cavity formed by the movable mold 4 and the base 5 into an upper cavity 101 and a lower cavity 102. By pulling out the movable plate 6, the upper and lower cavities can be merged into one cavity, thereby realizing the conversion of the number of asphalt specimens formed. Those skilled in the art can adjust the movable plate according to the needs of use.

[0034] In addition, the asphalt specimen molding and cutting device in this embodiment can control the movable plate 6 to mold 1 to 2 asphalt specimens at a time according to experimental needs, and can mix asphalts according to experimental needs. After the specimens are prepared, the cutting blade 2 can be slid according to the scale to cut the asphalt specimen cross-sections at multiple positions, and the prepared asphalt specimens can be obtained by sliding the movable mold 4.

[0035] Therefore, this invention employs the aforementioned scanning electron microscopy (SEM) apparatus for forming double-layer specimens of new and old asphalt mastic. Through a rational structural design, the movable mold and base enclose on the movable plate to form an upper cavity, while the movable plate and movable mold enclose on the base to form a lower cavity. Asphalt specimens can be formed and cut within these cavities. This invention offers advantages such as facilitating the forming of double-layer recycled asphalt mastic specimens, ensuring a smooth and observable cut surface, and simplifying the apparatus structure.

[0036] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the systems disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple; relevant parts can be referred to the method section.

[0037] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A device for forming a double-layer specimen of new and old asphalt mortar in scanning electron microscopy, characterized in that, The device includes a base, with a movable mold connected to the top of the base. One side of the movable mold is slidably connected to the top of the base, and the other side is close to the base. A cutting component is slidably connected to the top of the movable mold for cutting asphalt molded specimens. A movable component is slidably connected to the center of the movable mold. The base and the movable mold are combined to form an upper cavity around the movable component, and the movable component and the movable mold are combined to form a lower cavity around the bottom of the base for molding and cutting asphalt specimens. A slide rail is provided above the base, and the slide rail is slidably connected to the lower part of the movable mold; The movable component includes a movable plate slidably connected to the center of the movable mold, one end of which is connected to a pull ring, and the other end is telescopically connected to a slide rail in the middle of the movable mold. The movable plate is movably connected to the movable mold. The movement of the movable plate is controlled by the pull ring, thereby dividing the cavity formed by the movable mold and the base into the upper cavity and the lower cavity. By pulling out the movable plate, the upper and lower cavities can be merged into one cavity.

2. The device for forming a double-layer specimen of new and old asphalt mortar in scanning electron microscopy according to claim 1, characterized in that, The top of the movable mold is provided with a slide and a side baffle structure, and the cutting component is connected to the slide for moving on the movable mold.

3. The device for forming a double-layer specimen of new and old asphalt mortar in scanning electron microscopy according to claim 2, characterized in that, The outer surface of the movable mold is marked with scale lines, and the cutting component can be moved or disassembled on the movable mold according to the scale lines.

4. The device for forming a double-layer specimen of new and old asphalt mortar in scanning electron microscopy according to claim 3, characterized in that, The movable mold has a centrally embedded slide rail, and a protective partition is connected to the bottom end of the embedded slide rail.

5. The device for forming a double-layer specimen of new and old asphalt mortar in scanning electron microscopy according to claim 1, characterized in that, The cutting assembly includes an outer support frame slidably connected above the movable mold. A cutting blade is connected to the inner side of the outer support frame for supporting and sliding the cutting blade. A handle is connected above the cutting blade and to the top of the outer support frame for controlling the movement of the cutting blade.

6. The device for forming a double-layer specimen of new and old asphalt mortar in scanning electron microscopy according to claim 5, characterized in that, The outer surface of the outer support frame is marked with blade graduation lines, and the cutting blade can move inside the outer support frame according to the blade graduation lines.

7. The device for forming a double-layer specimen of new and old asphalt mortar in scanning electron microscopy according to claim 1, characterized in that, The movable plate can slide in the middle of the movable mold via the pull ring for mixing new and old asphalt.

8. The device for forming a double-layer specimen of new and old asphalt mortar in scanning electron microscopy according to claim 7, characterized in that, The pull ring consists of a pull ring handle, a pull ring connecting ball, and a pull ring inner ball. The pull ring handle passes through the pull ring connecting ball, and the pull ring connecting ball is partially hollow and is connected to the pull ring inner ball in a circular manner, so that the pull ring can rotate around the center. The other end of the pull ring inner ball is connected to the movable plate.

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