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How to Use an Asphalt Penetration Tester
1. Heat and melt the pre-dewatered sample; the heating temperature must not exceed 90℃ above the sample’s estimated softening point, and the heating duration must not exceed 30 minutes. After thorough stirring and sieving, pour the melted sample into a sample dish. The depth of the sample in the dish should be at least about 10 mm greater than the expected penetration value. Place the dish in a room at a temperature of 15–39℃ and allow it to cool for 1 hour. During cooling, ensure that no dust falls into the sample.
2021-12-14
Main features of the asphalt mixture stability tester
1. The entire experiment is automatically controlled by the instrument, and automatic measurement eliminates various human errors and prints out the experimental results.
2021-12-07
Operating Procedures for the Asphalt Softening Point Tester
■ Connect the power cord and press the “Power” button; the indicator light will turn on.
2021-12-02
Parameters and Calibration Methods for the Asphalt Extensometer
1. Adjust the zero point, power on and move the device, then simultaneously start the stopwatch. When the time reaches 1 minute, read and record the displacement measured on the scale. Repeat the measurement three times and calculate the arithmetic mean, ensuring that the speed is within the range of (50 ± 5.0) mm/min.
2021-11-30
Introduction to the Intelligent Tracking Multi-Functional Electric Compactor
The machine consists of a base, a body, a transmission section, a lifting section, a heavy compaction section, and a light compaction section.
2021-11-25