CN204649600U - The adhesiveness test device of a kind of pitch and coarse aggregate - Google Patents

Abstract

The utility model provides an adhesion test device between asphalt and coarse aggregate, which comprises a test platform, the bottom of the test platform is fixedly equipped with legs, and the test platform is fixedly installed with two legs for supporting the poles. The first supporting column and the two oppositely arranged second supporting columns, the first U-shaped bracket is fixedly installed on the first supporting column, and the second U-shaped bracket is fixedly installed on the second supporting column, A suspension ring is fixedly connected to the pole, and the suspension ring is connected with coarse aggregate through a connection line. The utility model is simple in structure, easy to use, can effectively save manpower, improve test efficiency, and minimize the test error caused by human factors as much as possible, and provide a reliable method for evaluating the adhesion level between asphalt and coarse aggregate. The test basis can be popularized and applied.

Description

A test device for adhesion between asphalt and coarse aggregate

technical field

The utility model relates to a test device, in particular to a test device for adhesion between asphalt and coarse aggregate.

Background technique

Asphalt is a product of crude oil processing. It is a black or dark brown viscous liquid or solid at room temperature. It is widely used in road engineering. The adhesion test between asphalt and coarse aggregate is used to test the adhesion between asphalt and coarse aggregate surface and evaluate the water peeling ability of coarse aggregate. In the current test specification for the adhesion between asphalt and coarse aggregate, there is no unified test device for this test, but the coarse aggregate is manually carried by hand during the test, so that the surface of the coarse aggregate is coated with Asphalt, and then boiled in water, which makes the degree of coating of each coarse aggregate and asphalt and the degree of boiling in water vary due to human factors, which in turn will lead to the evaluation of the adhesion level of asphalt and coarse aggregate large error occurs.

Utility model content

The technical problem to be solved by the utility model is to provide a test device for the adhesion between asphalt and coarse aggregate, which is simple in structure, easy to use, can effectively save manpower, and improve test efficiency. , and minimize the experimental error due to human factors as much as possible, and provide a reliable experimental basis for accurately evaluating the adhesion level of asphalt and coarse aggregate.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: a kind of adhesion test device for asphalt and coarse aggregate, which is characterized in that it includes a test platform, and the bottom of the test platform is fixedly equipped with legs. The test platform is fixedly installed with two oppositely arranged first support columns and two oppositely arranged second support columns for supporting the poles, and the first U-shaped bracket is fixedly installed on the first support columns. A second U-shaped bracket is fixedly installed on the second support column, and a suspension ring is fixedly connected to the support rod, and the suspension ring is connected with coarse aggregate through a connecting line.

The above-mentioned device for testing the adhesion between asphalt and coarse aggregate is characterized in that a drawer is provided on one side of the test platform, and a handle is provided on the drawer.

The above-mentioned device for testing the adhesion between asphalt and coarse aggregate is characterized in that the connecting wire is a metal wire.

The aforementioned device for testing the adhesion between asphalt and coarse aggregate is characterized in that the height of the first support column is smaller than the height of the second support column.

The above-mentioned device for testing the adhesion between asphalt and coarse aggregate is characterized in that the number of the suspension rings is five.

Compared with the prior art, the utility model has the following advantages:

1. The utility model has simple structure, novel and reasonable design, reliable test results, can conveniently and accurately evaluate the adhesion between asphalt and coarse aggregate, and the test results have good repeatability.

2. In the utility model, the coarse aggregate is tightly tied to the pole through the suspension ring and the connecting wire, and then the pole is placed on the first U-shaped bracket or the second U-shaped bracket to wrap the coarse aggregate with asphalt , The static cooling of the coarse aggregate and the boiling of the coarse aggregate can effectively save manpower, improve the test efficiency, and minimize the test error caused by human factors as much as possible, in order to accurately determine the adhesion level of asphalt Provide reliable evidence.

3. The test platform of the present invention is provided with drawers, which can conveniently accommodate small parts such as connecting wires and poles, and keep the test platform clean and tidy.

4. The utility model makes the operation process of the adhesion test between asphalt and coarse aggregate more convenient, has a long service life, good use effect and low production cost, and can be popularized and used.

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Explanation of reference signs:

1—Test platform; 2—First support column; 3—Second support column;

4—the first U-shaped bracket; 5—the second U-shaped bracket; 6—the pole;

7—hanging ring; 8—connecting line; 9—coarse aggregate;

10—legs; 11—drawer; 12—handle.

Detailed ways

As shown in Figure 1, the utility model includes a test platform 1, the bottom of the test platform 1 is fixedly equipped with legs 10, and the test platform 1 is fixedly equipped with two oppositely arranged first for supporting poles 6. The supporting column 2 and two second supporting columns 3 oppositely arranged, the first U-shaped support 4 is fixedly installed on the first supporting column 2, and the second U-shaped bracket 5 is fixedly installed on the second supporting column 3 , the support rod 6 is fixedly connected with a suspension ring 7, and the suspension ring 7 is connected with a coarse aggregate 9 through a connection line 8.

In this embodiment, a drawer 11 is provided on one side of the test platform 1, and a handle 12 is provided on the drawer 11. The drawer 11 can be used to accommodate small parts such as the pole 6 and the connecting wire 8, and can also be placed at the same time. Gaskets, asbestos nets, paper and pens, etc., to keep the test platform 1 clean and tidy.

In this embodiment, the connecting wire 8 is a metal wire, which has high strength, can fasten the coarse aggregate 9 tightly, and is easy to clean and recycle.

In this embodiment, the height of the first support column 2 is smaller than the height of the second support column 3 .

In this embodiment, the number of the suspension rings 7 is 5, so 5 coarse aggregates 9 can be tested in parallel at one time, which saves time and improves the test efficiency.

The operation steps of using the utility model for the adhesion test of asphalt and coarse aggregate are:

Step 1. Place the electric heating furnace and the large beaker on the test platform 1, pour distilled water into the large beaker, and then use the electric heating furnace to heat the distilled water in the large beaker;

Step 2, get 5 connecting wires 8 with the same length and 5 coarse aggregates 9 with similar shapes and sizes, one end of the connecting wire 8 is tightly fastened to the coarse aggregate 9, the other end of the connecting wire 8 is connected with the suspension ring 7, and finally Place the support rod 6, suspension ring 7, connecting wire 8 and coarse aggregate 9 in an oven at a temperature of 105°C±5°C for 1 hour;

Step 3, take out the support rod 6, the suspension ring 7, the connecting wire 8 and the coarse aggregate 9 from the oven, place the support rod 6 between the two second U-shaped brackets 5, and simultaneously immerse the five pieces of coarse aggregate 9 into the pre- In the heated asphalt sample for 45s, the surfaces of the five coarse aggregates 9 are completely covered with an asphalt film;

Step 4, move the pole 6 between the two first U-shaped brackets 4, and place a paper sheet on the test platform 1 below the coarse aggregate 9 to collect excess dripping asphalt, and set it at room temperature. Make the coarse aggregate 9 cool down for 15min;

Step 5, after the coarse aggregate 9 wrapped with asphalt film is cooled, put the pole 6 back between the two second U-shaped brackets 5, so that 5 pieces of coarse aggregate 9 are simultaneously immersed in a container filled with boiling water. In the large beaker, adjust the electric heating furnace to keep the water in the large beaker in a slightly boiling state, take it out after soaking for 3 minutes, and observe the peeling degree of the asphalt film on the coarse aggregate 9, according to the adhesion level of asphalt and coarse aggregate The requirements of the table evaluate its adhesion level.

The above descriptions are only preferred embodiments of the utility model, and do not limit the utility model in any way. All simple modifications, changes and equivalent changes made to the above embodiments according to the technical essence of the utility model still belong to the protection scope of the technical solution of the utility model.

Claims (5)

1. a kind of adhesion test device of asphalt and coarse aggregate, it is characterized in that, comprise test platform (1), the bottom of described test platform (1) is fixedly equipped with support leg (10), described test platform ( 1) Two oppositely arranged first support pillars (2) and two oppositely arranged second support pillars (3) for supporting the struts (6) are fixedly installed on the top, on the first support pillars (2) A first U-shaped bracket (4) is fixedly installed, a second U-shaped bracket (5) is fixedly installed on the second support column (3), and a suspension ring (7) is fixedly connected to the pole (6), The suspension ring (7) is connected with coarse aggregate (9) through a connecting line (8). 2. the adhesion test device of a kind of asphalt and coarse aggregate according to claim 1, is characterized in that, one side of described test platform (1) is provided with drawer (11), and described drawer (11) A handle (12) is arranged on the top. 3. A device for testing the adhesion between asphalt and coarse aggregate according to claim 1, characterized in that the connecting wire (8) is a metal wire. 4. A device for testing the adhesion between asphalt and coarse aggregate according to claim 1, characterized in that the height of the first support column (2) is smaller than the height of the second support column (3). 5 . The device for testing the adhesion between asphalt and coarse aggregate according to claim 1 , wherein the number of the lifting rings ( 7 ) is five. 6 .