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DIRECT SHEAR APPARATUS AS PER IS: 2720 Part 13
Direct Shear Apparatus, Multiple Reversal Type and Motorized 12 Speeds - This model has an additional facility of determine the residual shear strength and 12 rates of strain. It is suitable for testing a square specimen of 60 mm X 60 mm X 25 mm.
SPECIFICATION - The equipment comprises the following:
Loading Unit: It consists of a load frame with V-strips on which shear box housing rests, load yoke with direct and lever system for applying normal load to capacity of 3kg/cm2, fixture for proving ring, bracket for holding consolidation dial gauge and lead screw for application of shear stress and an additional arrangement for conducting residual shear strength and choice of 12 rates of strain by electric operation through a turret gear system.
Rates of strain: 1.25, 0.625, 0.25, 0.125, 0.05, 0.025, 0.01, 0.005, 0.002, 0.001, 0.0004 and 0.0002 mm/min.
Shear box assembly for square specimen, size 60mm X 60mm X 25mm complete with
Shear box housing fitted with a U-bracket and an adaptor for connecting the lead screw complete with two ball roller strips. Specimen cutter for cutting - 60 mm X 60 mm X 25 mm specimens. One each of strain dial gauge and consolidation dial gauge of 0.01 X 25 mm. Set of weights to give normal stress of 3kg/cm2 through lever i.e. 0.05 - 4Nos., 0.1 - 1No., 0.2 - 1No., 0.5 - 3Nos and 1 - 1No.
This apparatus is supplied completely as above with Proving Ring and dial gauge.