Viscosity

81-B0120/B with thermometer
Viscosity corresponds to the resistance of a liquid to flowing, so it’s a parameter strictly related to binder consistency and workability. Binder viscosity is heavily affected by temperature, and is measured using different methods such as measuring the time needed to pass through a capillary (kinematic and dynamic viscosity), an orifice (Standard TAR, Engler and Saybolt viscosity) or the force needed to rotate two coaxial cylinders (Rotational viscometer).

Dynamic Viscometers

For determining the dynamic viscosity with Cannon-Manning and AI viscometers.

Standards ASTM D2171 EN 12596

81-B0117/1 to 81-B0117/11

Engler Viscometer

Used to determine the specific viscosity of tars and their products.

Standards AASHTO T54 ASTM D1665 ASTM D490

81-B0120/B with thermometer

High Performance Rotational Viscometer

Used for high-performance measurement of apparent viscosity of binders.

Standards ASTM D4402 AASHTO T316 EN 13302 ASTM D2196

Rotational viscometer High Perfromance Version 81-PV0118/B

Kinematic Viscometers

Used for the determination of kinematic viscosity of liquid asphalts (bitumen) at 135°C.

Standards AASHTO T201 EN 12595 ASTM D2170

81-PV0116/A Viscosity Bath

Saybolt Viscometers

Used for the empirical measurement of Saybolt viscosity of binders between 21 and 99°C.

Standards ASTM D88 AASHTO T72 ASTM D7496

81-B0121

Standard Tar Viscometer

Used for determining the viscosity of cut-back bitumen and road oil.

Standards EN 12846 EN 13357

81-B0122/C with thermometer

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