DSR-1动态剪切流变仪

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一、概述：

动态剪切流变仪DSR-1用来测量沥青胶结料高温时的流变性质(复数剪切模量，相位角等)。SHRP动态剪切流变仪（DSR）是测定老化或未老化沥青，(改性或未改性沥青)5-85℃温度范围内线粘弹性性质的仪器。按AASHTO MP1方法试验时，沥青试样在规定温度下夹在圆形平行板中，通过作用已知扭矩来测量试样的复数剪切模量和相位角。使用相应的软件可进行两种模式试验：即应变控制（测量其应力）和应力控制（测量其应变）；可进行AASHTO PP6温度扫描试验。使用相应的软件可进行频率扫描试验，通用的系统可进行非SHRP试验，用于研究目的。

I. Overview:

The dynamic shear rheometer DSR-1 is used to measure the rheological properties (complex shear modulus, phase angle, etc.) of asphalt binders at high temperatures. The SHRP Dynamic Shear Rheometer (DSR) is an essential instrument for measuring the linear viscoelastic properties of aged or unaged asphalt (modified or unmodified asphalt) in the temperature range of 5-85°C. When testing according to the AASHTO MP1 method, the asphalt sample is clamped in a circular parallel plate at a specified temperature, and the complex shear modulus and phase angle of the sample are measured by applying a known torque. Two mode tests can be carried out using the corresponding software: strain control (measure the stress) and stress control (measure the strain); AASHTO PP6 temperature scanning test can be carried out. The corresponding software can be used for frequency sweep test, and the general system can be used for non-SHRP test for research purposes.

二、干式沥青测试系统:

DHR系列流变仪提供一个传统的沥青浸没式单元和干式沥青温控附件。两个温控系统都符合SHRP、ASTM和AASHTO规范要求，包含8mm和25mm平行板、样品模具。干式沥青系统将优异的上加热板系统（UHP）和独特的台阶式Peltier板完美结合。自动零热流校准确保温度梯度小于+/- 0.1℃。此干式沥青系统具有全新设计的智能温度控制（ATC），使得此干式沥青系统成为*能够同时直接控制上下夹具温度的台阶式Peltier系统。灵活的冷却方式包括外接循环器或新型涡流冷却。

2. Dry asphalt test system:

The DHR series rheometer provides a traditional asphalt immersion unit and dry asphalt temperature control accessories. Both temperature control systems meet the requirements of SHRP, ASTM and AASHTO specifications, including 8mm and 25mm parallel plates and sample molds. The dry asphalt system perfectly combines the excellent upper heating plate system (UHP) and the unique stepped Peltier plate. Automatic zero heat flow calibration ensures that the temperature gradient is less than +/- 0.1°C. This dry asphalt system has a newly designed intelligent temperature control (ATC), making this dry asphalt system a stepped Peltier system that can directly control the temperature of the upper and lower fixtures at the same time. Flexible cooling methods include external circulators or new vortex cooling.

三、技术规格:

■DHR（Discovery Hybrid Rheometer）系列高端旋转流变仪；

■轴承：多孔碳磁力止推轴承；

■马达设计：拖杯马达；

■小振荡转矩：10nN.m；

■小稳态剪切转矩：20nN.m；

■大扭矩：150 mN.m；

■扭矩解析度：0.1 nN.m；

■频率范围：1.0E-07~100Hz；

■角速度范围：0~300rad/s；

■位移传感器：光学编码器；

■位移分辨率：10nrad；

■应变切换时间：15ms；

■速度切换时间：5ms；

■法向力传感器：FRT；

■大的法向力： 50N；

■法向力灵敏度： 0.01N；

■法向力解析度：1mN；

■Peltier板：-40~200℃；

Three, technical specifications:

■DHR (Discovery Hybrid Rheometer) series of high-end rotary rheometers;

■Bearing: porous carbon magnetic thrust bearing;

■Motor design: drag cup motor;

■Small oscillation torque: 10nN.m;

■Small steady state shear torque: 20nN.m;

■High torque: 150 mN.m;

■Torque resolution: 0.1 nN.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: FRT;

■Large normal force: 50N;

■Normal force sensitivity: 0.01N;

■Normal force resolution: 1mN;

■Peltier board: -40~200℃;

四、用于沥青测试的推荐配置：

■DHR系列流变仪主机，磁力轴承，自动间距控制;

■干式沥青测试系统（亦可选湿式沥青测试系统）；

■温度控制采用Smart Swap技术;

■可根据AASHTO PP 6方法对铺路沥青进行分级;

■可根据AASHTO MP 1方法测试验证铺路沥青的使用行为特性;

■可对铺路沥青进行其它性能研究;

■配有SHRP标准进行的沥青测试英文引导软件。

■可选购的配置：

■DHR系列HR-2和HR-3更高型号的

■DMA动态力学性能测试夹具;

■电加热及ETC加热炉，更宽范围温控单元；

■其它材料测试夹具。

4. Recommended configuration for asphalt testing:

■DHR series rheometer host, magnetic bearing, automatic spacing control;

■Dry asphalt test system (wet asphalt test system is also optional);

■Temperature control adopts Smart Swap technology;

■The paving asphalt can be classified according to the AASHTO PP 6 method;

■It can be tested and verified according to the AASHTO MP 1 method to verify the use behavior characteristics of paving asphalt;

■Other performance studies can be carried out on paving asphalt;

■It is equipped with English guide software for asphalt test conducted by SHRP standard.

■Optional configuration:

■DHR series HR-2 and HR-3 higher models

■ DMA dynamic mechanical performance test fixture;

■Electric heating and ETC heating furnace, a wider range of temperature control units;

■Other materials test fixture.

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