An apparatus for forming asphalt mixture composites for oblique shear tests

Abstract

This utility model discloses an asphalt mixture composite molding device for oblique shear tests, comprising: a rolling unit including a customized rolling tile component, on which a driving component is provided; and a customized composite mold unit including a rectangular mold steel plate, on which a square mold steel plate is provided. This utility model can produce rutted plates with different requirements by replacing the square mold and the arc-shaped steel plate. The driving component drives the customized rolling tile to roll and mold the square mold. Its structural principle is simple, easy to operate, safe and reliable, effectively avoiding the problems of cumbersome steps and long time consumption in the asphalt mixture composite molding process, thereby effectively improving the molding efficiency of the composite.

Description

Technical Field

[0001] This utility model relates to the field of asphalt mixture testing technology, and in particular to an asphalt mixture composite molding device for oblique shear testing. Background Technology

[0002] With the increasing traffic volume and vehicle overloading, early damage to asphalt pavements is becoming increasingly serious, and the shear resistance of asphalt mixtures, which is closely related to this, is attracting more and more attention. Currently, the shear resistance of asphalt mixtures is tested by core sampling after molding rutting slabs and conducting 45° oblique shear tests. According to the relevant provisions of JTG E20-2011 "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering", when molding composite components, the size of the rutting slabs is limited by the mold because the size of the roller in a conventional rutting forming machine is larger than the size of the rutting slab mold. Therefore, only a single layer of rutting slab can be molded at a time.

[0003] Currently, when forming composite rutting slabs, the lower rutting slab must first be formed using a roller mill in a steel mold. After waiting 24 hours, an adhesive layer is applied to the surface of the lower slab, the mold baffle is raised, and then the upper slab is formed according to the conventional rutting slab forming method. The entire composite slab forming process is cumbersome and time-consuming, which greatly affects the efficiency of testing the shear properties of asphalt mixtures. Therefore, there is an urgent need for a device with a simple structure and principle, convenient operation, safety and reliability, and that can effectively improve the forming efficiency of composite rutting slabs. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] In view of the problems existing in the current asphalt mixture composite molding device for oblique shear test, this utility model is proposed.

[0006] Therefore, the purpose of this utility model is to provide a molding device for asphalt mixture composite components for oblique shear tests. It aims to solve the problem that "currently, when molding composite rutting slabs, it is necessary to first use a wheel mill to mold the lower rutting slab in a steel mold, wait 24 hours, apply an adhesive layer to the surface of the lower slab, raise the mold baffle, and then mold the upper slab according to the conventional rutting slab molding method. The entire molding process of the composite slab is cumbersome and time-consuming, which greatly affects the testing efficiency of the shear performance of asphalt mixtures".

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a molding device for asphalt mixture composite parts for oblique shear tests, comprising:

[0008] A rolling unit includes a customized tile rolling component, on which a driving component is provided;

[0009] A customized composite mold unit includes a rectangular mold steel plate, on which a square mold steel plate is provided.

[0010] As a preferred embodiment of the asphalt mixture composite molding device for oblique shear test described in this utility model, the customized rolling tile component includes an arc-shaped steel plate, a square steel plate is provided on the arc-shaped steel plate, and a connecting rod is provided on the square steel plate.

[0011] As a preferred embodiment of the asphalt mixture composite molding device for oblique shear test described in this utility model, the rectangular mold steel plates are in four sets, and the four sets of rectangular mold steel plates are welded with a set of square mold steel plates to form a square mold with the opening facing upward.

[0012] In a preferred embodiment of the asphalt mixture composite molding device for oblique shear test described in this utility model, the driving component includes a vibration motor welded to the upper end of the square steel plate, the vibration motor being connected to an external power source, a vibration stop button being provided on the square steel plate, and a vibration start button being provided on one side of the vibration stop button.

[0013] In a preferred embodiment of the asphalt mixture composite molding device for oblique shear test described in this utility model, the connecting rod is connected to an external rutting test molding machine, and the connecting rod has two sets welded to the upper end of a square steel plate.

[0014] In a preferred embodiment of the asphalt mixture composite molding device for oblique shear test described in this utility model, bolt grooves are provided on both the square steel plate and the arc-shaped steel plate, and the square steel plate and the arc-shaped steel plate are fixed by bolts.

[0015] As a preferred embodiment of the asphalt mixture composite molding device for oblique shear test described in this utility model, the square mold has a bottom dimension of 30cm×30cm, a mold height greater than 14cm, and an internal longitudinal scale accuracy of less than 0.1cm.

[0016] In a preferred embodiment of the asphalt mixture composite molding device for oblique shear test described in this utility model, the arc-shaped steel plate has the same bottom size as the square mold.

[0017] The beneficial effects of this utility model are:

[0018] Different types of rutted slabs can be made by changing the square mold and the arc-shaped steel plate. The customized roller is driven by the drive component to roll and form the square mold. Its structure is simple, easy to operate, safe and reliable. It effectively avoids the problems of complicated steps and long time consumption in the molding process of asphalt mixture composite parts, thereby effectively improving the molding efficiency of composite parts. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0020] Figure 1 This is a frontal schematic diagram of the overall structure of an asphalt mixture composite molding device for oblique shear testing proposed in this utility model.

[0021] Figure 2 This is a side view of the asphalt mixture composite molding device for oblique shear testing proposed in this utility model.

[0022] Figure 3 This is a schematic diagram of the rut plate forming unit structure.

[0023] In the diagram: 100, rolling unit; 101, customized rolling tile component; 101a, arc-shaped steel plate; 101b, square steel plate; 101c, connecting rod; 102, bolt; 103, driving component; 103a, vibration motor; 103b, vibration stop button; 103c, vibration start button; 200, customized composite mold unit; 201, rectangular mold steel plate; 202, square mold steel plate. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0027] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not adhering to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0028] Example 1

[0029] Reference Figure 1 , Figure 3 This is the first embodiment of the present invention. This embodiment provides an asphalt mixture composite molding device for oblique shear test, which can achieve the effect of molding rut slabs in one step according to different road thicknesses. It includes a rolling unit 100, including a customized rolling tile component 101, and a driving component 103 is provided on the customized rolling tile component 101.

[0030] The customized composite mold unit 200 includes a rectangular mold steel plate 201, on which a square mold steel plate 202 is provided. There are four sets of rectangular mold steel plates 201. The four sets of rectangular mold steel plates 201 are welded with one set of square mold steel plates 202 to form a square mold with the opening facing upward. The bottom size of the square mold is 30cm×30cm, the height of the mold is greater than 14cm, and the longitudinal scale accuracy inside the mold is less than 0.1cm.

[0031] In use, according to the actual situation, the corresponding material is laid in the customized composite mold unit 200, and the customized rolling component 101 that is compatible with the customized composite mold unit 200 is replaced. The customized rolling component 101 can be driven by the driving component 103 to roll the material in the customized composite mold unit 200. After cooling for 24 hours, the material can be demolded and tested.

[0032] Example 2

[0033] Reference Figures 1 to 3This is the second embodiment of the present invention. Unlike the previous embodiment, the customized rolling tile component 101 includes an arc-shaped steel plate 101a, a square steel plate 101b on the arc-shaped steel plate 101a, and a connecting rod 101c on the square steel plate 101b. The connecting rod 101c is connected to an external rutting test forming machine. Two sets of connecting rods 101c are welded to the upper end of the square steel plate 101b. Both the square steel plate 101b and the arc-shaped steel plate 101a are provided with bolt grooves. The square steel plate 101b and the arc-shaped steel plate 101a are fixed by bolts 102. The arc-shaped steel plate 101a has the same bottom size as the square mold.

[0034] Furthermore, the driving component 103 includes a vibration motor 103a welded to the upper end of the square steel plate 101b. The vibration motor 103a is connected to an external power source. A vibration stop button 103b is provided on the square steel plate 101b, and a vibration start button 103c is provided on one side of the vibration stop button 103b.

[0035] During use, check whether the vibratory motor 103a and the rutting test forming machine are working properly; whether the connection between the vibratory motor 103a and the square steel plate 101b is firm, and whether the vibration is smoothly transmitted to the arc-shaped steel plate 101a; and whether the inside of the square mold is clean. Select the square mold according to the actual situation, and then remove the arc-shaped steel plate 101a with bolts 102 and replace it with an arc-shaped steel plate 101a that matches the square mold. Then, the vibratory motor 103a and the rutting test forming machine can be used to roll the material in the square mold into a single-layer rutting plate of a certain thickness. The thickness of the rutting plate is determined according to the specific road surface layer. If it is a composite of the road surface surface layer and the middle surface layer, a 6cm thick middle surface layer rutting plate should be formed first. After the lower rutting plate is formed, apply an adhesive layer, turn on the vibratory motor 103a, and use the customized rutting instrument to vibrate and roll the upper rutting plate. After rolling, after cooling for 24 hours, it can be demolded for testing.

[0036] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An asphalt mixture composite forming device for a diagonal shear test, characterized by: include: The rolling unit (100) includes a customized rolling tile component (101), on which a driving component (103) is provided. A customized composite mold unit (200) includes a rectangular mold steel plate (201) on which a square mold steel plate (202) is provided.

2. The asphalt mixture composite forming device for a diagonal shear test according to claim 1, characterized in that: The customized rolling tile component (101) includes an arc-shaped steel plate (101a), a square steel plate (101b) is provided on the arc-shaped steel plate (101a), and a connecting rod (101c) is provided on the square steel plate (101b).

3. The asphalt mixture composite forming device for a diagonal shear test according to claim 1, characterized in that: The rectangular mold steel plate (201) consists of four sets, and the four sets of rectangular mold steel plates (201) are welded with a set of square mold steel plates (202) to form a square mold with the opening facing upward.

4. The asphalt mixture composite forming device for a diagonal shear test according to claim 2, characterized in that: The driving component (103) includes a vibration motor (103a) welded to the upper end of the square steel plate (101b). The vibration motor (103a) is connected to an external power source. A vibration stop button (103b) is provided on the square steel plate (101b), and a vibration start button (103c) is provided on one side of the vibration stop button (103b).

5. The asphalt mixture composite forming device for a diagonal shear test according to claim 2, characterized in that: The connecting rod (101c) is connected to an external rut testing molding machine. Two sets of the connecting rod (101c) are welded to the upper end of the square steel plate (101b).

6. The asphalt mixture composite forming device for a diagonal shear test according to claim 2, characterized in that: Both the square steel plate (101b) and the arc-shaped steel plate (101a) are provided with bolt grooves, and the square steel plate (101b) and the arc-shaped steel plate (101a) are fixed by bolts (102).

7. The asphalt mixture composite forming device for a diagonal shear test according to claim 3, characterized in that: The square mold has a bottom dimension of 30cm × 30cm, a height greater than 14cm, and an internal longitudinal scale accuracy of less than 0.1cm.

8. The asphalt mixture composite forming device for a diagonal shear test according to claim 2, characterized in that: The arc-shaped steel plate (101a) has the same dimensions as the bottom of the square mold.

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