Shear Testing Equipment
Creating a niche of Shear Testing Equipment such as Direct Shear Apparatus (Hand Operated), Laboratory Vane Shear (Motorised), Digital Direct/ Residual / Shear Apparatus, Triaxial Shear Apparatus (Motorized) Single Speed, Direct Shear Test Apparatus, Direct Shear (Motorised Single Speed) and many more items at its best, with utmost quality.
For determination of the direct shear strength of soils on specimen size 60 mm x 60 mm x 25 mm.
The apparatus comprises of the following:
Essential Accessories :
- 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 from larger samples.Set of weights to give a normal stress of 3 kg/sq.cm. through lever as follows:To give Kg/sq.cm. 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.
- High sensitivity compression proving ring cap 200 kg One Consolidation dia gauge 0.01 mm x 25 mm and one strain dial gauage 0.01 mm x 25 mm and one strain dial gaine 0.01mm x 25 mm.
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 form pad of 50.
- Porous stone for 60 mm x 60 mm size sample available in pairs.
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 a hand wheel 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 .
Supplied with set of four springs, one each of approx.
- 2 kgs / cm sq.
- 4kgs/cm sq.
- 6 kgs / cm sq.
- 8kgs / cm sq.
complete as above in a wooden carrying case. electrically operated rate of rotating is 1/60 R.P.M.
Suitable for operation on 230 V A.C. Single Phase.
Used to determine the resistance to shearing of all types of soil specimens both consolidated and drained, undisturbed or remoulded samples. The machine can accommodate specimens dia. 60, 100 mm, and square 60x60, 100x100 mm. The apparatus is equipped with a control closed loop motor with epicycloid reducers. At the beginning of each test, the machine performs an automatic and complete internal check, a position reset with the elimination of all possible positioning errors and all pauses. The input of all the test patterns is achieved by the interaction of the keyboard and the alphanumeric display with self-memory, thus granting infinitesimal resolutions in short times. All data are input and stored when the machine is in stand-by, without affecting the specimen under test with quick machine setting. Possibility to fix maximum excursion of the shear box, so as to interrupt automatically the test. It is possible to input a different return speed (residual shear) in relation to the one used for the shear test, thus allowing a quick playback to select the residual shear test, saving a lot of time. For determining the direct shear strength of soils on specimen size 60mm x 60mm x 25mm Features :RS 232 output for connection to PC Display of both speed and displacement with 0.00001 mm resolution Shear speed between 0.00001 to 9.99999 mm/minute Max shear effort: 5000 N possible on the whole speed range Possibility of direct vertical load, or with a lever arm ratio 10:1Max vertical direct load: 500N; with lever arm: 5500NDisplay and pilot lamps to signal any bad functioning and alarms Box group mounted on ball track with high quality anti friction system Read value results are immediate and of extreme accuracy Extremely easy and practical use, not requiring qualified staff.Shear box, hollow punch and tamper are not included in the standard supply and have to be ordered separately Power supply: 230 V A.C. Single Phase 50Hz.
For determining the triaxial shear strength of soil specimens of 38mm, 50mm, 75mm and 100mm dia.Consists Of :
- One load frame 5000 Kgf motorised
- consists one rate of strain type, giving the following rates of strain
- 1.25mm/min . Load frame is supplied with a dial gauge bracket
- Universal triaxial cell (stationary bushing) 10kg/cm.sq
- One lateral pressure assembly 0-10 kg/cm.sq
- One lateral pressure assembly 0-10kg/cm.sq
- complete with foot pump and rubber hose
- One high sensitivity proving ring capacity 1000kg
- One strain dial gauge 0.01 x 25mm. Suitable for operation on 230 V A.C.
The Direct Shear test apparatus consist of a square or circular box divided into two halves. The specimen, contained in the box, is subjected to a constant normal load while an increasing horizontal force is applied to one of the sections of the shear box. This force causes a shear failure along the juncture between the box sections of this. The shear force and the normal load are measured directly. The rate of strain is adjusted by the speed of the horizontal force applied. The loading unit has V-strips on which the shear box housing rests. The load yoke in these direct shear test apparatus helps counter balance the loading system. The lead screw connected to the shear box housing helps application of shear stress.
Direct Shear Test Apparatus comprises of
- Direct Shear Box assembly for 60mm x 60mm x 25mm thick specimen,
- Shear Box Housing
- Specimen cutter
- Loading Unit with a capacity of 8kg/cm2, set of weights to give normal stress of 3kg/cm2
- Proving Ring duly calibrated by Nccbm (Govt) of 2.5kN (250kgf) capacity & 2 (Two) Dial Gauges 0.01mm x 25mm travel
The load yoke with direct and through level system for applying normal load upto 8 kg/cm2 capacity, fixtures for proving ring, brackets for holding consolidation and strain dial gauges are also provided in these direct shear test apparatus.
Same as above but electrically operated to give a single constant rate of stain on 1.25 mm / min. Suitable for 230 V A.C. Weight 175 kg. approx.
Same as above but having 6 rates of strain 1.25, 0.25, 0.05, 0.01, 0.0002 & 0.0004 mm/min. Works on 230 V A.C. Nett Wt. 185 kg.
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.
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 2 chart to convert dial gauge readings to torque force in kgs/cm 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/cm with split proving ring & dial gauge 0.002 x 5mm complete with stand.Vane ( with vane rod ) 37.5mm dia x 75mm high 1 no.Vane ( with vane rod ) 50.0mm dia x 100mm high 1 no.Torque rod ( square cross section) 0.6mts long 1 no.Rods quick couplind type, 1 mtr. long 1 no.Rods quick coupling type, 1 ½ mtr. long 1 no.Dummy rod, corresponding to 37.5mm dia vane 1 no.Dummy rod , corresponding to 50.0mm dia vane 1 no.
Specifications: 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. Rotating of the vane is by means of a hand wheel which operates a worm gear arrangement during upper end of calibrated torsion spring. Vane dia, rod dia, vane size & vane height as per IS specifications. The Vane Shaft is attached through the hollow upper shaft to a resetable pointer, which indicates the angle of torque on a dial graduated in degrees. The dial reading multiplied by spring factor gives the torque. A container for soil sample is also supplied, and a sampling tube of 38mm I.D. & 150mm long can also be used as container. Supplied with set of four springs, one each of approx. 2 kg.cm., 4 kg.cm., 6 kg.cm., and 8 kg.cm. Complete as above in a wooden carrying case.
The settlement of foundations and changes in earth pressure due to movement of retaining walls or other earth supports, the yield of soil caused by application of load, are affected by the stress-strain relationship of soils. The experimental investigation for determining the stress-strain relation is usually carried out with Triaxial Compression Test. During the test, the soil samples gradually stressed up to failure. Generally speaking, Triaxial Tests are performed to stimulate different types of stress and drainage conditions that can occur in the sub-soil for simulating the effect of building construction, excavation, tunneling etc. Three different Triaxial Tests are usually performed for total and effective stress measurement. The 50 kN capacity machine, designed primarily for triaxial testing of soil specimens upto 100mm diameter x 200 mm long, comprises a rigid twin column construction with an integral fully variable. Models Available Digital Triaxial SYSTEM Microprocessor controlled drive unit and LCD display with a touch sensitive keyboard. The machine is normally bench mounted for ease of installation and operation. The digital indication of the load, pressure and the strain are displayed on the front panel of the load frame. Selector switch has been provided to shift the digital indicator from load to pressure or to strain. Specification :Capacity : 50kN Type: Microprocessor Controlled Stepper Motor Drive Platen Speed Range : 0.00001mm/min. to 9.99999 mm/min.Rapid Approach Speed : 25 mm/min.Horizontal Clearance : 364 mmMax. Vertical Clearance : 910 mm Max. Platen Travel : 100 mm Specimen Dia : 38 mm (50, 75 & 100 mm can also be used)Universal Electronic Load Cell : 10 kN cap.L.V.D.T. : 0-20mmPore Pressure Transducer : 20 bar cap.Electrical supply : 230V, Single Phase, 50 cycles, A.C.
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