Handheld, portable and easily used piece of field equipment to enable geotechnical engineers and technicians to provide accurate and meaningful results of shear strength in kilopascals (kPa).
If used correctly it will also measure residual shear strength of cohesive soils (ie clays and silts).
The 19mm vane blade range is approximately 180kPa. Dependant on the internal spring, full range can be between 170-200 kpa. The 33mm vane blade range is approximately 40kPa.
A 19mm vane blade is screwed in to the base of the Hand Vane Tester and the vane is pushed into the soil. Simply rotate the torque head at a rate of 1 revolution per minute and take a reading off the face when the soil fails. A pointer stays in place when failure occurs so all you have to do is look up the reading from the face on the supplied calibration chart to get your reading in kPa.
The Hand Vane Tester is supplied as a complete kit with torque head, 19mm vane blade, 33mm vane blade, 2 spanners and an aluminium carry case.
Optional Accessories and Spares
SL811 - 300mm Extension Rod
SL812 - 1000mm Extension Rod
SL810/1 - Spare 19mm x 29mm Vane
SL810/2 - Spare 33mm x 50mm Vane
Click to view a PDF file of the User Guide
A user guide is available to download from the Impact web site www.impact-test.co.uk