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How should an asphalt penetration tester be used?
Adjust the asphalt penetration tester so that it is level with the water. Adjust the needle rod and the counterweight, loosen the set screw on the cantilever to allow the cantilever to drop, and when the needle tip is approximately in contact with the specimen, tighten the cantilever nut.
2020-05-22
Operating and Usage Precautions for the Asphalt Mixture Compaction Tester
Features of the Asphalt Mixture Compaction Tester:
It features automatic counting, automatic compaction, and automatic shutdown. It also comes with a hammer-hanging bracket and a manual handle for easy lifting of the hammer. The semi-automatic mold-clamping device makes it even more convenient to insert and remove molds.
2020-05-18
Test Method and Precautions for Asphalt Extensibility Tester
The extensometer’s digital display directly shows the elongation length and automatically calculates the average value of the elongation for three specimens simultaneously. It features convenient operation, stable pulling speed, minimal vibration, and low noise.
2020-05-14
Operating Principle and Maintenance Methods for Low-Temperature Asphalt Extensometer
The low-temperature asphalt elongation tester mainly consists of a mechanical tensile device, a temperature control unit, and an LCD display section.
1. The mechanical tensile device is driven by a low-speed motor and, via transmission gears and racks in the gearbox, moves from one end to the other. The transmission mechanism is also equipped with a variable-speed device, enabling two different tensile speeds: 50 mm/min and 10 mm/min.
2020-05-11
The compaction hammer comes in two types: heavy-duty and light-duty. When performing light-duty compaction, insert the small hammer core into the hammer cylinder and tighten it securely. For heavy-duty compaction, insert the large hammer core into the hammer cylinder and tighten it securely, while also verifying that the drop height of the hammer is correct.
2020-05-08