Positioning bottom plate for asphalt softening point test
By introducing a positioning base plate and a high-temperature resistant film into the asphalt softening point test device, the problems of sample ring slippage and asphalt adhesion were solved, and the test was made convenient to operate and clean.
Patent Information
- Application Number
- CN202520216252.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-11
AI Technical Summary
In existing technologies, during asphalt softening point tests, the sample ring is prone to slipping and asphalt tends to stick to the periphery of the sample ring, making cleaning difficult.
A positioning base plate was designed, which includes a base plate and an openable positioning plate. The positioning plate is provided with positioning holes for fixing the sample ring and is covered with a high-temperature resistant film to prevent asphalt adhesion.
It effectively prevents sample ring slippage and asphalt adhesion, simplifies the cleaning process, and improves testing efficiency.
Smart Images
Figure CN223841821U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of asphalt performance testing devices, specifically relating to a positioning base plate for asphalt softening point testing. Background Technology
[0002] In civil engineering, asphalt is a widely used waterproofing and anti-corrosion material, mainly used for waterproofing roofs, floors, and underground structures, as well as for the corrosion protection of timber and steel. Asphalt is also a widely used pavement structural binder in road engineering. When mixed with mineral materials of different compositions in specific proportions, it can form asphalt pavements with various structures, and its application is particularly widespread on highways. According to the "Test Procedures for Asphalt and Asphalt Mixtures in Highway Engineering" (JTJ5052-2000) and the asphalt softening point test (ring and ball method) (T0606-2011), the prepared asphalt sample is injected into the mold's sample ring and cooled for 30 minutes. Then, the raised sample on the ring surface is scraped off with a hot scraper before the softening point test. When scraping the sample off the ring surface with a hot scraper, the mold tends to slide on the sample base plate coated with a release agent. Furthermore, because the sample ring is too small, viscous asphalt easily adheres to the perimeter of the sample ring during scraping, making cleaning difficult. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a positioning base plate for asphalt softening point test. Through the positioning function of the positioning hole, it can prevent the sample ring from sliding during the scraping process and also prevent asphalt from sticking to the periphery of the sample ring.
[0004] To solve the above-mentioned technical problems, this utility model provides a positioning base plate for asphalt softening point testing, including a base plate and a positioning plate. The positioning plate is hinged to the base plate, and the positioning plate has at least two positioning holes for placing the sample ring. The diameter of the positioning holes is slightly larger than the outer diameter of the sample ring, and the height of the positioning holes is equal to or slightly smaller than the height of the sample ring. During sample preparation, the positioning plate can be rotated to expose the base plate, a release agent can be applied to the base plate, and then the positioning plate can be rotated back to place the sample ring in the positioning hole for sample preparation. After cooling, excess asphalt can be scraped off with a hot scraper. Because the sample ring is placed in the positioning hole, it will not slide on the base plate during scraping, and the positioning plate also prevents asphalt from sticking to the periphery of the sample ring.
[0005] As a further description of the above technical solution:
[0006] The positioning plate is a two-part structure that can be opened and closed, consisting of a first plate and a second plate. The first plate has a first half-hole, and the second plate has a second half-hole. The first and second half-holes can be closed to form a positioning hole. During sample preparation, the first and second plates are first separated to expose the bottom plate. A release agent is applied, and then the first and second plates are closed. The sample ring is placed in the positioning hole to achieve the positioning of the sample ring. After sample preparation, the first and second plates are opened to facilitate the removal of the sample ring for testing.
[0007] As a further description of the above technical solution:
[0008] The upper surface of the positioning plate is covered with multiple layers of removable, high-temperature resistant film. If asphalt is accidentally spilled, it will adhere to the film due to its protection. The sample ring can be removed or the contaminated film can be peeled off after the experiment; cleaning of the positioning plate is not required.
[0009] As a further description of the above technical solution:
[0010] The first and second plates are equipped with interlocking fasteners. When the first and second plates are closed, the fasteners are locked for easy positioning. After sample preparation, the fasteners are opened and the first and second plates are rotated to easily remove the sample ring.
[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are:
[0012] A positioning plate is set on the base plate with positioning holes to prevent the sample ring from sliding on the base plate during the scraping process and to prevent asphalt from sticking to the periphery of the sample ring. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a top view of the present invention;
[0015] Figure 3 This is a schematic diagram of the utility model in its open state.
[0016] Legend:
[0017] 1. Base plate; 2. Fixed shaft; 3. Positioning plate; 31. First plate; 32. Second plate; 4. Positioning hole; 41. First half hole; 42. Second half hole; 5. Locking fastener; 51. Locking buckle; 52. Locking block; 6. High temperature resistant film. Detailed Implementation
[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.
[0019] A positioning base plate for asphalt softening point testing, such as Figure 1 — Figure 3 As shown, the device includes a base plate 1 and a positioning plate 3. The base plate 1 is made of glass, and the positioning plate 3 is made of brass or stainless steel. The positioning plate 3 is hinged to the base plate 1 via a hinge shaft 2. The positioning plate 3 has at least two positioning holes 4 for placing sample rings. The positioning holes 4 are stepped holes, and their shape and size are matched to the sample rings. That is, the diameter of the positioning hole 4 is slightly larger than the outer diameter of the sample ring, and the height of the positioning hole 4 is equal to or slightly smaller than the height of the sample ring. In this embodiment, based on the size of a conventional sample ring, the diameter of the large hole 4 is 19.9 mm, the height of the large hole is 6.0 mm, the diameter of the small hole is 19.1 mm, and the height of the small hole is 1.4 mm. The positioning plate 3 is a two-half structure that can be opened and closed, consisting of a first plate 31 and a second plate 32. The first plate 31 has a first half hole 41, and the second plate 32 has a second half hole 42. The first half hole 41 and the second half hole 42 can be closed to form the positioning hole 4. During sample preparation, rotate the first plate 31 and the second plate 32 to open them and expose the bottom plate 1. Apply a release agent to the bottom plate 1, then close the first plate 31 and the second plate 32 to form the positioning hole 4. Place the sample ring in the positioning hole 3 to prepare the sample. After cooling for 30 minutes, scrape off the excess asphalt with a hot scraper. Since the sample ring is placed in the positioning hole 4, it will not slide on the bottom plate 1 during the scraping process. Moreover, the positioning plate 3 also prevents asphalt from sticking to the periphery of the sample ring. After the sample preparation is completed, open the first plate 31 and the second plate 32 to facilitate the removal of the sample ring for testing.
[0020] The upper surface of the positioning plate 3 is covered with multiple layers of removable high-temperature resistant film 6. If asphalt is accidentally spilled, it will stick to the film 6 due to its protection. The contaminated film 6 can be removed by taking the sample ring or after the experiment, without the need to clean the positioning plate.
[0021] The first plate 31 and the second plate 32 are provided with locking fasteners 5 that cooperate with each other. The locking fasteners 5 include a latch 51 on the first plate 31 and a locking block 52 on the second plate 32 that cooperates with the latch 51. After the first plate 31 and the second plate 32 are closed, the locking fasteners 5 are locked to facilitate positioning. After the sample preparation is completed, the locking fasteners 5 are opened to facilitate the removal of the sample ring.
[0022] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it; those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of this utility model.
Claims
1. A positioning base plate for asphalt softening point testing, comprising a base plate (1), characterized in that: It also includes a positioning plate (3) hinged to the base plate (1), and the positioning plate (3) is provided with at least two positioning holes (4) for placing the sample ring. The positioning plate (3) is a two-part structure that can be opened and closed, consisting of a first plate (31) and a second plate (32). The first plate (31) has a first half hole (41), and the second plate (32) has a second half hole (42). The first half hole (41) and the second half hole (42) can be closed to form a positioning hole (4).
2. The positioning base plate for asphalt softening point testing as described in claim 1, characterized in that: The upper surface of the positioning plate (3) is covered with multiple layers of removable high-temperature resistant film (6).
3. The positioning base plate for asphalt softening point testing as described in claim 1, characterized in that: The first plate (31) and the second plate (32) are provided with locking fasteners (5) that cooperate with each other.