Description

DIRECT SHEAR TEST APPARATUS

AS PER IS: 2720 (Part-VIII), ASTM D-3080 For determination of the direct shear strength of soils on specimen size 60 mm x 60 mm x 25 mm. Specification: The apparatus comprises of the following: Loading Unit: Supplied with load yoke with direct and lever system for applying load. Normal stress capacity 8kg/sq.cm. Load is applied either directly of through a counter balanced detachable lever. Provision is made for 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 25 mm one pair of plain gripper plates, one pair or perforated gripper plates, one pair or porous stones, one top 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 25 mm specimen from larger samples. 

Set of weights to give a normal stress of 3 kg/sq.cm. through lever as follows:

To give kg/cm sq 0.05 4 Nos., 0.1 1No. , 0.2 1No., 0.5 3 Nos. , 1..0 1No. Complete set as above but without proving ring. Nett weight 140Kg. Essential Accessories: High sensitivity compression ring cap 200 kg one consolidation dial gauge 0.01 mm x 25 mm and one strain dial gauge 0.01 mm x 25 mm and one strain dial gauge 0.01 mm x 25 mm. Optional extras: Additional set of weights to give a normal stress of 5 kg/cm2 Soil Sampler for 60 mm x 60mm specimen and test from pad of 50. Spares: Porous stone for 60 mm x 60 mm size sample available in pairs.