JMT - 635
DIRECT SHEAR (MOTORISED SINGLE SPEED)
IS : 2720 (Part - VIII), ASTM D-3080.
For determinant the direct shear strength of soils on specimen size 60 mm x 60 m 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 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 25 mm one pair of plain gripper plates, one pair of perforated gripper plates, one pair of 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 form larger samples. Set of weights to give a normal stress of 3 kg/sq.cm. through lever as follows :-
To give kg/cm. sq. Qty.
0.05 4 Nos.
0.1 1 Nos.
0.2 1 Nos.
0.5 3 Nos.
1.0 1 Nos.
Complete set as above but without proving ring.
Nett weight 140 kg.
Essential Accessories : High sensitivity compression proving ring cap 200 kg. One consolidation dial gauge 0.01 mm x 25 mm and one strain diala gauge 0.01 mm x 25 mm and one strain dial gauge 0.01 mm x 25mm.
Optional extras: Additional set of weights to give a normal stress of 5 kg/cm2. Soil Sampler for 60 mm x 60 mm specimen and test forms pad of 50.
Spares: Porous stone for 60 mm x 60 mm size sample available in pairs..
It is electrically operated to give a single constant rate of stain of 1.25 mm/min. Suitable for 230 V A.C. Weight 175 kg. approx.