LABORATORY VANE APPARATUS, S-074, Hand Op., MATEST.
BS 1377

Description:

Matest Laboratory Vane apparatus represents a valid alternative to the most common standard triaxial equipment whenever a rapid estimation of the undrained shear strength of a soil specimen is required.

Based on the original design by the UK Transport Research Laboratory, this apparatus is hand-operated thus allowing the application of stress to the soil sample as a function of the specific calib
ration spring and vane used (see accessories).

The working principle of the apparatus is governed by the rotation of the vane into the soil sample, while the calibrated spring provides the measurement of the applied torque. In addition, two different graduated scales are present on the instrument; one for the applied torque (inner scale) and another for the vane rotation (outer scale).