Direct Shear (Motorised Twelve Speed).
The apparatus comprises of the following. Loading Unit :Supplied with
load yoke with direct and lever system for applying load. Normal stress
capacity 8 kg/sq. cm. Load is applied either directly or through a
counter balanced detachable lever. Provision is made for the load to be
applied either through a steel ball recessed in the loading pad or
direct through a boss on the pre calibrated loading yoke. The loading
unit is provided with V strips and roller strips for frictionless
movement of shear box housing.
Shear Box Assembly :Comprising direct
shear box in two halves for a square specimen size 60 x 60 x 25mm one
pair of plain gripper plates, One pair of perforated gripper plates, one
pair of porous stones, one top of loading pad. Shear Box
Housing:Accommodates the direct shear box assembly. Complete with two
ball roller strips. Specimen cutter : for cutting 60 x 60 x 25mm.
Specimen form larger samples. Set of weights to give a normal stress of
3kg/sa.cm. Through larger as following : -
To give kg/cm. 0.05,Qty. 4
nos.To give kg/cm. 0.1,Qty. 1 no.To give kg/cm. 0.2,Qty. 1 no.To give
kg/cm. 0.5,Qty. 3 nos.To give kg/cm. 1.0,Qty. 1 no. Complete set as
above but without proving ring. Net weight 140 kg. :High sensitivity
compression proving ring. Cap 200kg. One consolidation dial gauge 0.01mm
x 25mm and one strain dial gauge 0.01mm x 25mm
Optional Extras :2
Additional set of weights to give a normal stress of 5 kg/cm . Soil
sampler for 60mm x 60mm specimen and test forms pad of 50.
SPARES :
Porous stone for 60mm x 60mm size sample available in pairs. Unit is
electrically operated to give the following 12 rates or strains. 1.25,
0.625, 0.25, 0.125, 0.05, 0.025, 0.01, 0.005, 0.002, 0.001, 0.004 and
0.0002 mm/min. The apparatus is suitable for operation on 230 Volts
Single Phase A.C. Supply.
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