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JTGE20-2011 T0628, ASTM P246, AASHTO T315-09
The Dynamic Shear Rheometer DSR is mainly used to measure the rheological properties (complex shear modulus, phase angle, etc.) of asphalt binders under high temperature. The SHRP Dynamic Shear Rheometer (DSR) is used to measure viscoelasticity of aged or unaged and modified or unmodified asphalt in the temperature range of 5-90 degrees. According to AASHTO MP1 method, the asphalt sample is placed between 25 mm/8mm circular plate clamps under specified temperature, and the complex shear modulus and phase angle of specimen is measured by applying a known torque.
| Loading Mode | air bearing |
| Bearing | porous carbon magnetic thrust bearing |
| Minimum Oscillation Torque | 10nN.m |
| Minimum Steady-State Shear Torque | 20nN.m |
| Maximum Torque | 50N.m; 100N.m to 350N.m(200, 350 optional) |
| Torque Resolution | 0.1 mN.m |
| Frequency Range | 1.0E-07~100Hz |
| Angular Velocity Range | 0~300rad/s |
| Displacement Sensor | optical encoder |
| Displacement Resolution | 10nrad |
| Strain Switching Time | 15ms |
| Speed Switching Time | 5ms |
| Normal Force Sensor | HBM |
| Maximum Normal Force | 150N |
| Normal Force Sensitivity | 0.01N |
| Normal Force Resolution | 1mN |
| Peltier Board | -40~200ºC |
| Dimension | 300*300*400mm |
| Weight | about 50kg |
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