产品介绍

I. Overview

This instrument was developed in accordance with the T0709 standard for the Marshall stability test of asphalt mixtures, as specified in the “Test Procedures for Highway Engineering and Asphalt Mixtures” (JTG E20-2011) issued by the Ministry of Transport of the People's Republic of China. It is suitable for conducting Marshall stability tests and water-soaked Marshall stability tests for the purpose of designing asphalt mixture mix designs or inspecting the construction quality of asphalt pavements. This method is applicable to the standard Marshall test specimens (cylinders, Φ101.6 mm × 63.5 mm) formed in accordance with T0702 of the “Test Procedures for Highway Engineering and Asphalt Mixtures” (T0702) for standard Marshall test specimens (cylinders, Φ101.6 mm × 63.5 mm) and large Marshall test specimens (cylinders, Φ152.4 mm × 95.3 mm). Standard configuration: One set of Marshall indenters (101.6 mm).

II. Main Technical Specifications

1. The vertical upward speed of the test instrument tray is 50.8 mm/min   

2. The maximum travel distance of the test instrument tray is 70 mm

3. Force measurement range: 0–50.00 kN             

4. Displacement working range: 0–25.00 mm

5. Measurement accuracy of the force measurement device: ±0.01 kN

6. Measurement accuracy of the displacement measurement device: 0.01 mm

7. Operating voltage: AC 220 V, 50 Hz/60 Hz

8. Motor specifications: 220 V, 1.2 kW, servo motor

9. Maximum rated load: 50 kN               

10. Operating conditions: Ambient temperature 0°C–60°C, relative humidity <85%.