Viscosity measurements for slurries

The Viskomat NT measures the relative viscosity of slurries such as cement paste, cement mortar or similar slurries of mortars with particle sizes of 2 mm maximum. The relative viscosity provides insights into
-    the stiffening behavior,
-    the effect of additives and admixtures and
-    the effect of different temperature levels upon the material under investigation.

A temperature sensor integrated into the paddle takes up the sample temperature during the ongoing measurements. A cryostat permits a controlled temperature conditioning of the sample. Test regimes can be defined freely. The following information is recorded during the measurement: time, temperature, torque, speed of rotation or the angle.

Fresh concrete rheometer BT-2

This piece of equipment determines rheological properties of fresh concrete like relative viscosity and relative shear limit. In contrast to the commonly used flow table test the rheometer measures the shear resistance (relative viscosity and relative shear) of fresh concrete under well-defined loading conditions.

The measuring container is first fill with 20 dm3 of fresh concrete. The BT-2 is placed on top of the container and the handle is used for one initial rotation. Two measuring arms sitting under the BT-2 in different distances dive into the concrete during the rotation. Each arm registers the torque and in parallel the drive rotational speed. Both information are used for calculating the relative flow curve.

The BT-2 sends its data via an infrared interface to a mobile device where the measurement is displayed graphically. The data can be copied to a computer for further processing.