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Advantages and Features of Mobile Laboratories
With the advancement of science and technology, mobile laboratories have emerged to meet the needs of on-site experiments in specific industries—enabling flexible, rapid experimentation and timely result generation. A mobile laboratory refers to an experimental facility or setup equipped with specialized experimental capabilities, supported by active or passive carrying devices, and designed to be movable or temporarily set up at various locations.
2020-10-15
Common Faults and Solutions for Asphalt Extensometers
The common faults and troubleshooting methods for the asphalt ductility tester are as follows:
① Fault: The leakage protection device trips upon power-on.
Cause: The leakage protection device detects ground current. Since this instrument requires grounding to operate, some units may cause the leakage protection device to trip.
Solution: Bypass the power supply through the leakage protection device, or replace it with a leakage protection device that allows for a higher leakage current.
2020-10-11
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