Rheometer for fresh mortar and concrete

The rheometer Viskomat XL is intended for the mechanical characterization of coarse-grained materials, especially mortars and concretes. It is so far the only rheometer for concrete, with a maximum grain size of up to 16 mm, which enables oscillation measurements. With this type of measurement, in addition to the basic flow curve, the mechanical properties of fresh concrete can also be determined: storage modulus G', loss modulus G'', phase shift between them, static and dynamic viscosity, etc. Based on these, it is possible to derive rheological models, on which the digitization of construction with quality control can be based in the future. It also enables measurements of workability and setting time as a function of time and temperature, the influence of mineral and chemical additives, particle packing density, particle charge, etc. on the rheological properties of cement composites.

Responsible for equipment: Ana Brunčič
The interested research public can access the Viskomat XL rheometer with expressed interest via e-mail or phone. After the contact is established, a meeting is organized at which the type, scope and manner of performance of the measurements as well as available term for the performance of the measurements is determined. The measurements are carried out by the qualified staff of ZAG, presence of foreign experts is allowed. Contact details are published on the ZAG website.