Abstract: A method for the determination of the properties of mouldable materials, such as the granular and pulverous masses of fresh concrete, and stiff liquids, particularly for the determination of the plastic and reologic properties thereof. A sample of a known weight is taken from the mass; the sample is subjected to a moulding effect; and a compression (S) and the number of working revolutions required therefor are determined. In order that the behavior of the material to be measured can be controlled accurately during the measuring process and that the obtained measuring results are accurate and reliable, the sample is compressed in two axially opposite directions with a constant force (P); the sample is moulded under a constant compression between two parallel inclined planes which change the rotationally change the direction of inclination thereof; the volume (V and V.sub.