The field vane shear test (FVST) is the most widely used method for measuring the undrained shear strength and sensitivity of clays in-situ.

• Detailed field investigation of undrained shear strength and sensitivity of soft and medium stiff clays.
• From 0-30 meters by hand jack, even through hard layers of clay, sand or silt.
• Two vane sizes: Measurements from 0-60 kPa & 0-100 kPa.
• Top-level accuracy, results can be used for the design of earth fill foundations and embankments.
• ISO 9001 Certified

H-10 specifications

• Preliminary field investigation of undrained shear strength of soft to stiff clays.
• Quick and easy to use, low weight.
• Direct manual boring down to 3 meters
• Three vane sizes: Measurements from 0-200 kPa

H-60 specifications

• Preliminary field investigation of undrained shear strength of soft to medium stiff clays.
• Geonor 180 degree slip-coupling system gives a better evaluation of rod-soil friction.
• Direct penetration to 10 meters without need for pre-boring.
• Two vane sizes: Measurement range from 0 to 80 kPa & 0-60 kPa.

H-70 specifications