Bitumen Testing System - Dynamic Shear Rheometer DSR. 20-4440

Bitumen Testing System - Dynamic Shear Rheometer DSR

EN 14770, ASTM D7175, D7552-09 PC-controlled rotation rheometer consisting of:

► Tripod with stable basic plate and high precision drive unit with measuring system including module for easy and fast changing adjustment the measuring plates

► Height adjustable adapter for setting the measuring plate system 20-4445 with precision positioning unit

► Separate measuring and electronic controller

► Windows software for CR, CS and oscillation tests

 

CR test:
► Preset constant shear speed and measuring of the shear stress:
• Result: viscosity

► Preset shear speed and measuring of the shear stress:
• Result: flow and viscosity curve

► Preset shear speed leaps (strain/relaxation test) and measuring of the shear stress:
• Result: starting/decay curve, shear modulus, viscosity, strain/relaxation time

CS test:
► Preset shear stress-time-ramp and measuring of the shear speed:
• Result: flow and viscosity curve, flow limit

► Preset shear speed and measuring of the shear stress:
• Result: flow and viscosity curve

► Preset shear stress tests (creep retardation test) and measuring of the deformation:
• Result: creep diagram, compliance

Oscillation tests:
► preset harmonic shear stress oscillations and measuring of the deformation:
• Results: memory modulus G`, loss modulus G``, complex modulus G*, loss factor tan Alpha

MSCR test:
► Determination of multiple stress creep recovery

The measuring plate system 20-4445 as well as measuring plates  20-4452/52 are required in addition.

As an option further measuring systems to carry out tests according to DIN EN 13302– 13702 – 14896 – 15324 – 15325 are available.

PC-working place with operating system Windows SE or higher, free capacity on hard disc min. 10 MB, 2 serial interfaces (COM) or 2 USB interfaces 2.0 are necessary.

 

Technical data:

• Torque range: 0.1 … 200 mNm
• Torque resolution: 0.002 mNm
• Speed range: 0 … 1000 rpm
• Speed resolution: 0.015 rpm
• Temperature range: -60 … +350°C
• Angle range: -50 … 300°
• Angle resolution: approx. 0.001°
• Frequency range: 0.001 … 10 Hz
• Complex module: approx. 3*102 … 6*109 Pa
• Phase angle: approx. 0 … 90°
• Connection: 230 V, 50/60 Hz

 

 

Measuring plate system. 20-4445

With attachment to use with 20-4440. Cooling range -10...+150°C is effected using a peltier operated base plate and included cooling thermostat. The base plate is prepared with space to fit the sample and can be cleaned easily.
Supplied with sample centering tool.

 


Measuring Plates

With special connecting shaft.
20-4452        Ø 25 mm
20-4454        Ø 8 mm


 

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