Dynamic shear rheometer DSR
It is used to evaluate the viscous (non-recoverable) and elastic (recoverable) properties of aged and unaged asphalt in the temperature range 5-85℃ by measuring the dynamic shear modulus G* and phase angle s of the bitumen to predict the ability to resist rutting and fatigue cracking.
STANDARD
- ASTM P246
- AASHTO T315
- JTG E20-2011 T0628
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As a reliable dsr dynamic shear rheometer, it detects two core indicators: dynamic shear modulus G* and phase angle of bitumen. Based on the test results, users can scientifically predict the asphalt’s performance against rutting deformation and fatigue cracking, which is essential for road material quality inspection and research.
APPLICATION
Asphalt, coatings, food, cosmetics, polymers, adhesives, medicine, composite materials, etc.
CONFIGURATION
Host, temperature control (circlation) system, asphalt fixture (8/25mm), asphalt test software.
FEATURES
Ultra-low inertia servo motor technology
- Smooth positioning and drive speed regulation are realized through toothless torque.
- Ultra-low inertia hollow cup motor design, fast torque and speed response, and excellent dynamic characteristics.
- Relative to the volume and weight of the motor itself, it can provide extremely high torque and power.
- Absolute linear relationship between current and torque, voltage and speed.
Ultra-high precision sensing and measuring system
- Optical encoder, with a resolution of 10⁻⁴ rad, can accurately measure the rotational angular displacement and angular velocity.
- Ultra-high sensitivity normal force sensor design, fast transient response, accurate measurement and control of normal force.
- Ultra sensitive torque sensor design, which can accurately measure rotor torque.
- The ultra-high precision grating system accurately measures and controls the vertical running position, and the gap resolution is 0.1 μm.
Temperature control unit
- Peltier temperature control system is adopted, and high-resolution temperature sensor is embedded to ensure fast and accurate sample temper-
ature control.
- One step plug-in design of power supply, communication and fluid connection, fast, convenient and firm.
Integrated design
- All mechanical, power supply, control, communication, display and other components are arranged in one machine body, with small volume, high
integration and high requirements for design,processing and assembly.
Intelligent software
- Friendly interface to ensure the best rheological measurement operation.
- Including the setting of fixture, temperature, test and other parameters required for all DSR tests.
- Try to avoid the influence of operators.
- Time temperature equivalent superposition (TTS) to generate the main curve
TECHNICAL PARAMETERS
Torque range: 10nNm to 150nNm (200, 350 optional)
Torque resolution: 0.1nNm
Displacement resolution: 10nrad
Control mode: Stress/strain
Angular velocity: 0-3rad/s
Rotating speed: <10-7 rads/sec to 300 rads/sec
Vibration frequency range: 10μ - 10Hz
Temperature range: -5~100℃±0.1℃
Water bath: 6L, temperature fluctuation ±0.05℃
Power supply: 220V, 50Hz
Dimensions: 500*300*400mm(H*W*D)
TRAINING
Training services are available for this equipement, including on-site training, training videos and training documents. Contact us for a quote.
Duration: 2 days
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| On-site training | Training videos | Training documents |
