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Inspection and Test Preparation Before Using the Asphalt Penetration Tester
The asphalt penetration tester’s chuck nut securely fastens the penetrometer needle, ensuring that the needle rod and the penetrometer needle are aligned on the same central axis. A displacement sensor detects the penetration process, automatically records the penetration depth, and displays the entire penetration procedure. The device is equipped with a cold-light illumination system that has no adverse effect on the asphalt surface temperature. It also comes with a low-temperature water bath, enabling low-temperature penetration tests.
2020-09-29
Working Principle and Preparatory Steps for Using the Asphalt Extensometer
The asphalt ductility tester is suitable for determining the ductility of various types of asphalt, as well as the residue left after distilling liquid asphalt and the evaporative residue from asphalt emulsions. Next, our editor will introduce you to the working principle and preparation steps for using the asphalt ductility tester—let’s take a closer look!
2020-09-23
Application and Operating Procedures for the Asphalt Softening Point Tester
The asphalt softening point tester features a floor-standing, monolithic structure with a rectangular exterior. The instrument uses a stainless steel plate as the bath chamber, and beneath the chamber are electric heating and refrigeration evaporators. At the base of the upright columns is a closed refrigeration system comprising a compressor, fan, and other components. On the upper right side is the control system. This asphalt softening point tester is used to determine the penetration of residual materials left after distillation or emulsification of road petroleum asphalt, liquid petroleum asphalt, or emulsified asphalt. Place a flat-bottomed glass dish containing the sample onto the platform of the penetration tester, then slowly lower the needle rod until the tip of the needle just touches the surface of the sample, and set the scale to zero.
2020-09-16
Operating Instructions for the Asphalt Softening Point Tester
Operating Instructions for the Asphalt Softening Point Tester:
Place the metal ring on a glass plate coated with a glycerin-talc separator (glycerin:talc = 2:1). Heat the asphalt (for petroleum asphalt, heat to ≤ the estimated softening point + 90℃; for coal asphalt, heat to ≤ the estimated softening point + 50℃). Then, pour the heated and thoroughly mixed asphalt into the metal ring, slightly higher than the surface of the ring.
2020-09-10
Precautions for the Use and Maintenance of the Asphalt Extensometer
I. Instructions for Using the Asphalt Elongation Tester:
1. Add water to the elongation tester’s water tank so that the water level is at least 35 mm above the top surface of the traction motor’s slide plate.
2. Set the temperature controller to either 15°C or 25°C (as required by the test), and press the “Stir,” “Heat,” or “Cool” switch to bring the water temperature precisely to the set point.
2020-09-02