New Product Release: Asphalt Pressure Aging Tester

New Product Release: Asphalt Pressure Aging Tester

Recently, our company has launched a new asphalt pressure aging tester. Below is a detailed introduction of this product

1、 Product Introduction

The TD630-1 asphalt pressure aging tester is designed and manufactured by Hebei Tianqi Xingzi Testing Equipment Co., Ltd. in accordance with the requirements specified in the industry standards JTG E20-2011 "Test Code for Asphalt and Asphalt Mixtures in Highway Engineering" (T0630-2011) "Accelerated Asphalt Aging Test for Pressure Aging Vessels" and SH/T 0774-2005 "PAV Method for Asphalt Accelerated Aging Test" in the petrochemical industry of the People's Republic of China, as well as reference to ASTM D6521 and AASHTO PPI test methods. It can simulate the oxidation aging of asphalt during road use and is suitable for evaluating the K oxidation aging ability of different asphalt under test temperature and pressure conditions.

2、 Performance characteristics

1. This system consists of TD630-Y asphalt pressure aging box and TD630-Z asphalt aging vacuum box.

2. The manufacturing, installation, and use of this system comply with the relevant provisions of the Special Equipment A Supervision Regulations.

3. This system is equipped with a computer, and the high-voltage aging test is controlled and monitored by the computer. The entire test process is automatically completed by the computer control.

4. All technical indicators of this system meet the requirements of similar imported equipment, making it an ideal substitute for imported equipment.

3、 Main technical parameters

1. TD630-Y Asphalt Pressure Aging Chamber

1.1 Power supply voltage: AC (220 ± 10%) V, 50Hz; Power of 1.1kW.

1.2 Working volume of pressure vessel: 13L.

1.3 Rated operating temperature: 110 ℃± 5 ℃.

1.4 Rated working pressure: 2.1MPa ± 0.01MPa.

1.5 Dimensions: 630mm x 450mm x 500mm (length x width x height).

2. TD630-Z Asphalt Aging Vacuum Box

2.1 Power supply voltage: AC (220 ± 10%) V, 50Hz; Power of 0.9kW.

2.2 Working volume of vacuum container: 13L.

2.3 Rated operating temperature: 180 ℃± 5 ℃.

2.4 Rated working pressure: J has a pressure of 15kPa.

2.5 External dimensions: 560mm x 390mm x 350mm (length x width x height).

(Note: Compressed air is required for work)

4、 Experimental operation steps

1. Preparation work

1.1 Prepare the sample according to the method of T0602 in this regulation. Asphalt is subjected to a rotary film oven test (RTFOT), and the residue from the aging test is poured into a container. 1.2 Place a standard thin film oven test tray of known quality on a balance, add 50g ± 0.5g of asphalt to the tray, and make the asphalt film thickness about 3.2mm. If the residue has cooled, it can be heated to a flowing state before pouring the sample.

2. Experimental steps

2.1 Place the tray inside the pressure vessel, select the temperature of the pressure aging vessel according to relevant requirements, turn on the heater, and preheat the pressure vessel to the selected aging temperature. When the temperature reaches the aging temperature, quickly open the pressure vessel, place the prepared sample tray on the sample rack in the pressure vessel, and then close the pressure vessel. 2.2 When the temperature inside the pressure vessel reaches 2 ℃ below the specified temperature (required to be reached within 2 hours), supply an air pressure of 1MPa ± 0.1MPa and start timing. Maintain the temperature and air pressure inside the pressure vessel for 20 hours ± 10 minutes. 2.3 After the specified 20 hour aging time, open the pressure reducing valve to reduce the pressure inside the pressure aging vessel (PAV) to the same level as the external pressure within 8-15 minutes. During the 20 hour aging stage, if the temperature recorded by the temperature recording device is higher or lower than the target aging greenhouse by ± 0.5 ℃; If the total time exceeds 60 minutes, the aging process is invalid and the test sample is discarded; Similarly, if the pressure exceeds the regulatory range, the test sample will also be discarded. 2.5 Open the pressure vessel, take out the test stand and sample tray, pour the hot residue from the tray into a container, add gas and stir to remove bubbles, and immediately perform performance testing of pressure aging (PAV) residue. If the residue is not tested immediately, it should be stored under cover at room temperature for future testing.

5、 Test Results Report

The report after the experiment includes: sample number, aging temperature, accurate to 0.5 ℃; Record the aging temperature of Z high and Z low, accurate to 0.1 ℃; Total aging time, accurate to 1 minute.