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Soil Testing Equipments

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Vane Shear
Laboratory Vane Shear Apparatus (Motorised)
Consists of a torque head adjustable in height by means of a lead screw rotated by a drive wheel to enable the vane to be lowered into the specimen. Rotation of the vane is by means of an electrically operated rate of rotating is 1/60 R.P.M. Suitable for operation on 230 V A.C. Single Phase which operates a worm gear arrangement turning the upper end of a calibration torsion spring, vane dia, rod dia, vane size & vane height are as per IS specifications.
The vane shaft is attached through the hollow upper shaft to a resettable pointer, which indicates the angle indicates the angle of torque on a dial graduated in degree the dial reading multiplied by spring factor gives the torque a container for soil sample is also supplied & a sampling tube of 38mm. i.d. & 150mm long can also be used as container .
Pocket Vane Shear Apparatus
This is an accurate and portable instrument for the determination of in-situ shear strength of cohesive soil , either on-site or on undisturbed or re-moulded samples in the Laboratory. The instrument comprises of a torque head with a direct reading scale which is turned by hand. A non return pointer assists in reading. Vanes of either 19 mm or 33 mm dia with rods are fixed to the underside of the torque head, and can be pushed well into the undisturbed material below or behind and excavated surface.
In-Situ Vane Shear Test
IS 4434-1967
Specification :
The apparatus is designed for conducting in situ vane shear test from bottom of a bore hole in saturated cohesive deposits for determining their in place shearing resistance.

The equipment consists of a torque applicator assembly mounted on a base, a gear wheel, which is marked in degrees, holds a torque ring and is geared to a crank, the torque ring is a split ring & deforms as torque is applied & the deformation is indicated by a dial gauge. A calibration chart to convert dial gauge readings to torque force in kgs/cm2 is supplied. A pointer is provided For registering the rotations of the vane, a detachable stand is provided to anchor the instrument an attachment to securely hold the string of rods is provided the equipments comprises of the following :
Torque applicator assembly capacity 2000kg/cm2 with split proving ring & dial gauge 0.002 x 5mm complete with stand.
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