DSR-1動態剪切流變儀

一、概述：

動態剪切流變儀DSR-1用來測量瀝青膠結料高溫時的流變性質(復數剪切模量，相位角等)。SHRP動態剪切流變儀（DSR）是測定老化或未老化瀝青，(改性或未改性瀝青)5-85℃溫度范圍內線粘彈性性質的儀器。按AASHTO MP1方法試驗時，瀝青試樣在規定溫度下夾在圓形平行板中，通過作用已知扭矩來測量試樣的復數剪切模量和相位角。使用相應的軟件可進行兩種模式試驗：即應變控制（測量其應力）和應力控制（測量其應變）；可進行AASHTO PP6溫度掃描試驗。使用相應的軟件可進行頻率掃描試驗，通用的系統可進行非SHRP試驗，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、干式瀝青測試系統:

DHR系列流變儀提供一個傳統的瀝青浸沒式單元和干式瀝青溫控附件。兩個溫控系統都符合SHRP、ASTM和AASHTO規范要求，包含8mm和25mm平行板、樣品模具。干式瀝青系統將優異的上加熱板系統（UHP）和的臺階式Peltier板結合。自動零熱流校準確保溫度梯度小于+/- 0.1℃。此干式瀝青系統具有全新設計的智能溫度控制（ATC），使得此干式瀝青系統成為*能夠同時直接控制上下夾具溫度的臺階式Peltier系統。靈活的冷卻方式包括外接循環器或新型渦流冷卻。

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、技術規格:

■DHR（Discovery Hybrid Rheometer）系列旋轉流變儀；

■軸承：多孔碳磁力止推軸承；

■馬達設計：拖杯馬達；

■小振蕩轉矩：10nN.m；

■小穩態剪切轉矩：20nN.m；

■大扭矩：150 mN.m；

■扭矩解析度：0.1 nN.m；

■頻率范圍：1.0E-07~100Hz；

■角速度范圍：0~300rad/s；

■位移傳感器：光學編碼器；

■位移分辨率：10nrad；

■應變切換時間：15ms；

■速度切換時間：5ms；

■法向力傳感器：FRT；

■大的法向力： 50N；

■法向力靈敏度： 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、用于瀝青測試的推薦配置：

■DHR系列流變儀主機，磁力軸承，自動間距控制;

■干式瀝青測試系統（亦可選濕式瀝青測試系統）；

■溫度控制采用Smart Swap技術;

■可根據AASHTO PP 6方法對鋪路瀝青進行分級;

■可根據AASHTO MP 1方法測試驗證鋪路瀝青的使用行為特性;

■可對鋪路瀝青進行其它性能研究;

■配有SHRP標準進行的瀝青測試英文引導軟件。

■可選購的配置：

■DHR系列HR-2和HR-3更高型號的

■DMA動態力學性能測試夾具;

■電加熱及ETC加熱爐，更寬范圍溫控單元；

■其它材料測試夾具。

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.