Asphalt Dynamic Shear Rheometer DSR (RT-745)

dynamic shear rheometer test for bitumen

Category 2. Plastic Testing Machine

Additional information

Product Details：

RT-745 Dynamic Shear Rheometer Test For Bitumen

The DSR dynamic shear rheometer is mainly used to measure the asphalt binder’s rheological properties (complex shear modulus, phase angle, etc.) at high temperatures. The SHRP dynamic shear rheometer (DSR) measures the viscoelasticity of aged or unaged asphalt, modified or unmodified asphalt in the 5-90 degrees Celsius temperature range. According to the AASHTO MP1 method, asphalt is tested at a specified temperature on a circular flat plate between 25mm/8mm, and the sample’s complex shear modulus and phase angle are measured by applying a known moment. Use corresponding software for stress-strain control.

RT-745 Dynamic Shear Rheometer Specification:

1. Speed range: 0.01-2850r/min

2. Angular velocity range: 0.01-300rad/s

3. Deviation angle resolution: 10-4rad

4. Oscillation frequency: 0.1-20Hz

5. Torque range: 0.001-200mm

6. Torque resolution: 0.001mm

7. Normal force range: 0.01-50N

8. Normal knife resolution: 1m

9. Control mode: stress/strain

10. Bearing: Porous carbon magnetic thrust bearing.

11. Temperature range: 5-85 ℃

12. Temperature resolution: 0.01 ℃

13. Temperature control accuracy: ± 0.1 ℃

14. Measurement system: 1 pair of 25mm test plates and 1 pair of 8mm test plates

15. Mincun ≈ 400x415x670 mm

RT-745 Dynamic Shear Rheometer main configuration:

Rheometer host:	one unit
Temperature control (circulation) system:	one unit
Asphalt special fixture (8mm):	one set
Asphalt special fixture (25mm):	one set
Computer notebook:	one unit
Asphalt-specific testing software:	one set (installed)
Network cable:	– root

RT-745 DSR Dynamic Shear Rheometer:

Meets specifications: JTG E20-2011T0628, ASTM P246, AASHTO T315-09

Application industries: asphalt, coatings, food, cosmetics, polymers, binders, pharmaceuticals, composite materials, etc

RT-745 High Efficient DSR Dynamic Shear Rheometer is used to study the rheological properties of asphalt, such as SHRP (Strategic Highway Research Program) grading measurement, multi-stress creep measurement, strain scanning measurement, viscosity measurement, etc. It can be used to measure matrix asphalt, polymer-modified, rubber powder-modified, and aged asphalt after pressure aging and rotary film oven treatment. By measuring the dynamic shear modulus G * and phase angles of asphalt, the viscosity (nonrecoverable) and elasticity (recoverable) properties of aged and unaged asphalt in the temperature range of 5-85 ℃ are evaluated, and the ability to resist rutting and fatigue cracking is predicted.

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