Name：Marshall stability test
Model：LWD-3A/B/C
Specification
- Overview
This instrument is developed in accordance with the T0709 Marshall Stability Test Standard of Asphalt Mixture in JTG E20-2011 “Test Regulations for Highway Engineering and Asphalt Mixtures” of the Ministry of Communications of the People’s Republic of China. It is suitable for Marshall Stability Test and Immersion Marshall Stability. Carry out the mix ratio design of the asphalt mixture or the quality inspection of the asphalt pavement construction. This method is suitable for the standard Marshall specimen cylinder (Φ101.6mm×63.5mm) and the large Marshall specimen cylinder (Φ152.4mm×95.3mm) formed by T0702 in JTG E20-2011 “Highway Engineering and Asphalt Mixture Test Regulations” ).
Instrument composition:
The Marshall stability automatic tester includes a host, a force measuring device, a flow value measuring device, a printing device and related accessories, which are used for the measurement of stability and flow value in the Marshall test. At the same time, the host of this test instrument only needs to make a few changes and is equipped with related accessories to complete a variety of tests that require vertical loads.
Features:
- It can realize functions such as automatic loading, automatic shutdown, data display, data acquisition, peak value discrimination, peak value retention, and data printing.
- The circuit adopts strong and weak current separation, digital and analog separation, electronic components are all military products, wide operating temperature range, stable working performance, good repeatability, and strong anti-interference ability.
- The use of hardware and software triple self-protection functions to ensure the safety and reliability of the test process. The whole machine is beautiful and light in weight. 4. Using modular design ideas, each functional module is relatively independent, which is convenient for repair and maintenance.
Main technical indicators
- The vertical ascent speed of the test instrument tray is 50±5mm/min
- The maximum moving distance of the tester tray is 70mm
- Working range of force value: 0-50.00kN
- Working range of flow value: 0-20.00mm
- The measuring accuracy of the force measuring device is ±0.1kN
- The measuring accuracy of the flow value measuring device is 0.01mm
- Working voltage: AC 220V
- Motor specifications: 220V, 0.37KW, 1440rpm, single-phase operation
- Maximum rated load: 50KN
- Conditions of use: ambient temperature 0℃-60℃, relative temperature <85%