Hand-Held Field Vane Shear Tester

Three vane sizes allow for the direct determination of undrained shear strength of soft to stiff clays. The peak vane value is determined by a calibrated scale ring built into the head assembly. The cross handle is used both to push the vane to the desired test depth and to apply the shearing torque. To correct for the skin friction of the extension rods, a dummy probe replaces the vane and a skin friction test is performed adjacent to the vane test location.

• Torque Head Assembly
• Six Extension Rods, 50 cm long by 1 cm diameter
• Three Vanes, 16 x 32 mm, 20 x 40 mm, 25.4 x 50.8 mm, (0.63 x 1.25 in, 0.79 x 1.58 in, 1 x 2 in)
• Skin Friction Probe
• Double-ended Wrench and Hard-Shell plastic carrying case with die-cut foam insert.