Mortar and Cement Paste Rheometer - Viskomat NT

Viskomat NT Rheometer for Cement, Mortar and Paste

The Qualitest-Schleibinger Viskomat NT Rheometer for Cement, Mortar and Paste is a flexible rotational rheometer designed to evaluate the workability and rheological behavior of fine-grained construction materials, including cement paste, mortar, and plaster with particle sizes up to 4 mm. It is suitable for both research and development (R&D) and quality control applications, providing detailed insights into material behavior during testing.

With the Viskomat NT Rheometer, users can determine:

• Flow curves and rheological parameters of cement paste, mortar, and plaster

• Workability characteristics and setting behavior over time, including temperature sensitivity

• The effects of admixtures and additives on material rheology and workability

Viskomat NT Rheometer for Cement, Mortar and Paste Features

• Robust construction for reliable use in laboratory and industrial environments

• Programmable measurement profiles provide flexibility for different testing requirements

• Network interface enables convenient integration with an intranet or laboratory network

• No dedicated PC or software requirements, simplifying system operation and setup

• Optional shear stress-controlled drive for additional testing capabilities

• Optional oscillation mode for expanded rheological analysis

• Suitable for research and development as well as quality control applications

Viskomat NT Rheometer for Cement, Mortar and Paste Measurement Principle

The Viskomat NT Rheometer for Cement, Mortar and Paste determines the rheological behavior of a sample by measuring the torque acting on a submerged measuring probe. A fresh sample is placed in the sample container, after which the appropriate measuring probe is positioned within the material. As the sample container rotates, the probe experiences resistance from the sample, and the resulting torque is measured to evaluate its rheological properties.

Measurement Setup

The Viskomat NT Rheometer can be configured with different measuring probes to accommodate various construction materials and particle sizes:

• Mortar probe — suitable for samples containing particles up to 2 mm

• Paste probe — suitable for particles up to 0.5 mm

• Modified paste probe — suitable for particles up to 2 mm

• Vane probe — suitable for materials containing particles up to 4 mm

• Sphere probe — available with 10 mm, 20 mm, and 30 mm balls, with a compatible sample container

• Basket probe — designed for testing mortar and tile adhesive

• Cylinder probe — for suitable rheological measurement applications

• Plate-cone probe — for rheological testing requiring a plate-cone configuration

Viskomat NT Rheometer for Cement, Mortar and Paste Technical Specifications

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