Testing Mixer
Introduction
The Laboratory Mortar Mixer is a combination of mixing and measuring tool to assess the behavior of cementicious mortar during the mixing process. The software supports normal mixing and water dosing according to EN-Standards, but gives also the possibility to assess the exact water demand of the mortar to reach a specific flow characteristic or workability (comparable to viscosity). These mixers are typically used in cement / concrete laboratories of cement / concrete manufacturing plants.
Measuring Principle
The Laboratory Mortar Mixer is equipped with a torque sensor, a control unit and a water dosing system. A specific amount of standardized sand and cement are put into the bowl. After some time of dry mixing, a precise amount of water is added, which increases the force for mixing significantly. The mixing force is constantly measured by the torque sensor. More water is added to the mortar and the torque starts to decrease. The so called Water Demand, which is the main result of this measurement, is the total amount of water, which has to be added until the torque comes down to the specified torque value.
