G - Physics – 01 – N
Patent
G - Physics
01
N
73/81
G01N 11/00 (2006.01) G01N 3/24 (2006.01) G01N 33/38 (2006.01) G01N 1/28 (2006.01) G01N 3/00 (2006.01) G01N 3/02 (2006.01) G01N 33/00 (2006.01)
Patent
CA 1305337
Abstract The invention relates to a method for the deter- mination 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. In the method a sample (20) of a known weight is taken from the mass; the sample is subjected to a moulding effect; and a compres- sion (S) and the number of working revolutions required therefor are determined. In order that the behaviour of the material to be measured could be controlled accurately during the measuring process and that the obtained mea- suring results would be accurate and reliable, the sample (20) is compressed in two opposite directions with a constant force (P); the sample is moulded under a constant compression between two parallel inclined planes (13, 14) which change the position thereof by revolving; the volume (V and Vt) of the sample is measured prior to the moulding and after a determined number of working revolutions (n); and the magnitude of the torque resisting the revolving of the inclined planes (13, 14) is measured from the sample at least at one determined shear speed of the sample, which shear speed depends on the revolving speed of the inclined planes and the angle of incline thereof. (Figure 5)
548114
Nordenswan Erik T.
Paakkinen Ilmari
Rantanen Heikki O.
Nordenswan Erik T.
Paakkinen Ilmari
Rantanen Heikki O.
Sim & Mcburney
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