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The RT-745 Asphalt Dynamic Shear Rheometer (DSR) is a high-precision laboratory testing instrument designed to evaluate the rheological and viscoelastic properties of asphalt binders and other advanced materials. It is widely used for determining the performance charact...
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The RT-745 Asphalt Dynamic Shear Rheometer (DSR) is a high-precision laboratory testing instrument designed to evaluate the rheological and viscoelastic properties of asphalt binders and other advanced materials. It is widely used for determining the performance characteristics of both aged and unaged asphalt, enabling engineers and researchers to predict resistance to rutting, fatigue cracking, and long-term pavement performance.
The RT-745 performs a wide range of advanced rheological tests, including SHRP grading measurements, multi-stress creep testing, strain scanning, and viscosity measurements. By accurately measuring the complex shear modulus (G*) and phase angle (δ), the instrument evaluates the elastic and viscous behaviour of asphalt binders over a controlled temperature range, making it an essential tool for quality control, research, and material development.
Designed for professional laboratories, the RT-745 features stress and strain control modes, high-resolution torque measurement, precise temperature control, and advanced testing software for accurate data acquisition and analysis. It complies with internationally recognised testing standards, ensuring reliable and repeatable test results for highway engineering and materials research.
High-precision dynamic shear rheological analysis
Measures complex shear modulus (G*) and phase angle (δ)
Suitable for aged and unaged asphalt binders
Supports SHRP performance grading (PG) testing
Stress and strain controlled testing modes
Wide speed and angular velocity ranges
High-accuracy temperature control system
Advanced data acquisition and analysis software
Magnetic thrust bearing for stable and accurate operation
Includes both 25 mm and 8 mm test plate systems
Compact laboratory design with reliable performance
The RT-745 is suitable for testing:
Asphalt binders
Polymer-modified asphalt
Rubber-modified asphalt
Pressure-aged asphalt
Rotary film oven (RTFO) aged asphalt
Road construction materials
Coatings
Polymers
Adhesives and binders
Cosmetics
Pharmaceuticals
Food products
Composite materials
| Specification | Details |
|---|---|
| Model | RT-745 |
| Instrument Type | Asphalt Dynamic Shear Rheometer (DSR) |
| Speed Range | 0.01–2850 r/min |
| Angular Velocity Range | 0.01–300 rad/s |
| Oscillation Frequency | 0.1–20 Hz |
| Deviation Angle Resolution | 10⁻⁴ rad |
| Torque Range | 0.001–200 mN·m |
| Torque Resolution | 0.001 mN·m |
| Normal Force Range | 0.01–50 N |
| Control Mode | Stress / Strain |
| Bearing Type | Porous Carbon Magnetic Thrust Bearing |
| Temperature Range | 5–85°C |
| Temperature Resolution | 0.01°C |
| Temperature Control Accuracy | ±0.1°C |
| Measurement System | One pair of 25 mm test plates and one pair of 8 mm test plates |
| Machine Dimensions | Approximately 400 × 415 × 670 mm |
The RT-745 complies with the following international testing standards:
JTG E20-2011 T0628
ASTM P246
AASHTO T315-09
Delivers highly accurate and repeatable rheological measurements
Assesses asphalt performance under varying temperatures and loading conditions
Predicts rutting and fatigue resistance for pavement design
Suitable for research laboratories, universities, testing institutes, and asphalt production facilities
Supports quality control, product development, and performance grading of asphalt materials
| Model | RT-745 |
|---|---|
| Instrument Type | Asphalt Dynamic Shear Rheometer (DSR) |
| Speed Range | 0.01–2850 r/min |
| Angular Velocity Range | 0.01–300 rad/s |
| Oscillation Frequency | 0.1–20 Hz |
| Deviation Angle Resolution | 10⁻⁴ rad |
| Torque Range | 0.001–200 mN·m |
| Torque Resolution | 0.001 mN·m |
| Normal Force Range | 0.01–50 N |
| Control Mode | Stress / Strain |
| Bearing Type | Porous Carbon Magnetic Thrust Bearing |
| Temperature Range | 5–85°C |
| Temperature Resolution | 0.01°C |
| Temperature Control Accuracy | ±0.1°C |
| Measurement System | One pair of 25 mm test plates and one pair of 8 mm test plates |
| Machine Dimensions | Approximately 400 × 415 × 670 mm |
The Dynamic Shear Rheometer has an accuracy of 95.2%, ensuring reliable results for your testing needs.
The device features a wide angular velocity range from 0.01 to 300 rad/s, allowing for versatile testing conditions.
The rheometer has an excellent torque resolution of 0.001 mNm, which helps in obtaining precise measurements.
It can operate within a temperature range of 5 to 85 degrees Celsius.
Yes, it is specifically designed as a rubber testing machine, making it ideal for evaluating rubber materials.
The Dynamic Shear Rheometer requires a power supply of 1000 W, with options for 220 V or 380 V.
The product comes with a two-year warranty, providing peace of mind for your investment.
It is used for material testing in research laboratories, quality control in manufacturing, development of new rubber products, studying flow behavior of materials, and evaluating performance of polymers and composites.
The maximum torque range the rheometer can handle is 0.001 to 200 mNm.
The single gross weight of the Dynamic Shear Rheometer is 230.000 kg.
The single package size of the rheometer is 65 cm x 55 cm x 170 cm.
Yes, it offers customizable support for OEM, ODM, and OBM projects.
The oscillation frequency range of the rheometer is from 0.1 to 10 Hz.
Researchers and engineers in laboratories who require accurate data for material testing will find this tool essential.
Please contact our customer service for information regarding training options for using the rheometer.
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