Soil Testing Lab Equipments


Static Cone Penetrometer

Code: CEST241

Extensive use of static cone penetrometers was originally made in Holland where buildings are constructed in areas mostly reclaimed from thesea-bed. Research work has also been done in recent years to correlate Static Cone Test results with the Standard (Dynamic) Penetration test results, resulting in widely different correlation factors depending upon local geological history. The static Cone Penetration Test is also used for predetermining the length and estimating the load carrying capacities of piles passing through soft compressible starts and resting upon hard clays, sands of gravel. The Penetration resistance of the cone has nearly the same value as the load which can be carried by the actual pile per unit area of the pile tip. By using the additional friction jacket with the standard equipment, identifications of various soil types penetrated is also possible.

In Static Cone penetration Test, a truncated steel cone (60 degree angle 10sq.cm at base is forced) vertically into the soil by static thrust required to cause a bearing capacity failure of the soil immediately surrounding the point where measurements are required to be made. Such measurement made at suitable desired intervals, provide a continuous bearing capacity profile and hence a shear strength profile of the soils at eh sounding location. The cone point is advanced with a two rod system. The outer casing provides structural strength and protects the inner rod from soil friction and buckling the protected inner rod advances the point during the thrust measurement which is achieved by pressure gauges. The friction jacket (to be ordered extra) helps in obtaining additional information like static soil friction (skin friction) against the steel sleeve. Two Types of mantle tubes each one meter long are avaiLable. The mantle tube with a uniform dia. of 36mm enables the determination of total cumulative skin friction of the soil in addition to the cone resistance. If however cone resistance is the main requirement and cumulative skin friction is not to be measured, then mantle tubes of non uniform diameter are to be used. A judicious combination of both types of tubes would be the ideal one, the number of each depending upon local geological history.

Laboratory Vane Shear Apparatus (Hand Operated)

Code: CEST244

As Per IS: 2720 (Part XXX)-1968

Specifications: Consists of a torque head adjustable in height by means of a lead screw rotated by a drive whee to enable the vane to be lowered into the specimen. Rotation of the vane is by means of a hand wheel operates a worm gear arrangement during the upper end of a calibrated torsion spring. Vance dia, rod dia., vane size & vane height are as per IS specifications. The Vane shaft is attached through the hollow upper shaft to a reset table pointer, which indicates the angel 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. 2kg.cm., 4kg.cm., 6kg.cm., and 8kg.cm. Complete as above in a wooden carrying case.

Hand Vane Tester

Code: CEST247

Complete with 19mm Vane, range o to 120 kpa, 33mm vane, range o to 28 kpa, Spanners and carrying case. Accessories: Extra rod 300mm long, Extra rod 1000mm long.

In Situ Vane Shear Test

Code: CEST250

As Per IS: 4434-1967

The apparatus is designed for conducting in situ vane shear test from the bottom of a bore hole in saturated cohesive deposits for determining their in place shearing resistance.

Specifications: 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 and deforms as torque is applied and the deformation is indicated by a dial gauge. A calibration Chart to convert dial gauge reading to torque force in kg cm. is supplied. A pointer is provided for registering the rotation of the vane. A detachable stand is provided to anchor the instrument. An attachment to securely hold the string of rods is provided. The equipment comprises of the followings:

  • Torque applicator assembly capacity 2000kg cm with split proving ring and dial gauge 0.002mm x 5mm complete with stand.
  • Vane (with vane rod) 37.5 mm dia. 75mm high ..... 1No.
  • Vane (with vane rod) 50mm dia. x 100mm high ..... 1 No
  • Torque rod (Square cross section) 0.6mtr. long ..... 1 No
  • Rods, quick coupling type, 1mtr. Long ..... 25Nos.
  • Rods, quick coupling type, 1/2mtr. Long ..... 10Nos.
  • Dummy rod, corresponding to 37.5 mm dia. vane ..... 1No
  • Dummy rod, corresponding to 50 mm dia. vane ..... 1No

Essential Accessories: Guide with ball bearing arrangement for alignment of the string of rods for use with 10cm casing pipe. Guide with ball bearing arrangement for alignment of the string of rods for use with 15cm casing pipe.

Accessories:
  • Vane (with vane rod) 65mm dia. x 130mm high.
  • Vane (with vane rod) 75mm dia. x 150mm high.
  • Vane (with vane rod) 100mm dia. x 200mm high.
  • Dummy rod, corresponding to 65mm dia. vane.
  • Dummy rod, corresponding to 75mm dia. vane
  • Dummy rod, correspondent to 100mm dia. vane

Note: Drilling equipment including casing for bore hole and jacking arrangement which are required fro performing the test do not form a part of the above outfit.

Sieves

Code: CEST253

Test Sieves is a common Laboratory requirement. Sieves are used for sieving of chemical powders, medical powders, aggregate, sand soil and cement etc.

These sieves are manufactured as per various standards like ISS, BSS, ASTM, DIN etc. In Civil Engineering it is a common practice to use sieves for gradation and particle size determination. Manufacturers brass frame and G. I. Frames Sieves of dia. 200mm, 300mm and 450mm. Normally brass sieves are manufactured in 200cm dia. and frame is spun brass, The Sieve cloth used is standard SS or phosper bronze wire mush. The G.I. Frames sieves manufactured normally n sizes 300mm dia. or 450mm dia. have a steel perforated sheet having accurately punched square holes.

Sieve Shaker (Hand Operated) For 20cm Dia. Sieves

Code: CEST256

This is all light, portable but sturdy sieve shaker suitable for bench mounting. The side to side movement tothe carrier which can take upto 7 sieves of 150mm or 200mm diameter is through a train of gears operated by a hand wheel. A heavy fly wheel ensures smooth operation.

Sieve Shaker (Hand Operated) For 20cm & 30cm Dia. Sieves

Code: CEST259

Same as above but carrier table and holder suitable to take 20cm as well as 30cm dia. sieves.

Sieve Shaker (Hand Operated) For 20cm Dia. Sieves

Code: CEST262

Specifications: This is similar to above sieve shaker but the gears are enclosed in a box on which the sieve carriage is mounted. In addition to the side rocking motion, there is also a taping action.

'Rotap' Sieve Shaker

Code: CEST265

To make process of sieving simpler and quicker, Rotap Sieve Shaker is useful. This produces circular shaking of the sieves. At the same time the sieves are tapped. The mechanism for in parting circular action and a tapping is oil immersed in a tank and a motorized. The shaker can accommodate upto 7 Nos. Sieves of dia. 150mm or 200mm. Suitable operation on 230Volts A.C. Single phase.

'Gyratory' Sieve Shaker

Code: CEST268

Specifications: Carries upto 7 Sieves of 150mm or 200mm diameter. The shaker is driven by a 1/4 H.P motor through a reduction gear immersed in oil. The sieve table dies not rotate but is inclined from the vertical axis and the direction of inclination changes progressively in clockwise direction. If the stop-pin below the table is removed, the shaker can have a rotary motion. In addition to this gyratory motion of the table, three is and upward and downward movement ensuring that each square cm of the sieve is utilized. A pair of rods and a holder are supplied. The holder can be fixed on the top of the upper most sieve, and thus the sieve set is firmly held. Suitable for operation form 230volts, 50 cycles phase, A.C. supply. Nett weight approx. 77kgs.

Accessories: Adaptor for 30cm diameter sieves. Time switch 0-60mins in 5mins graduation.

Wet Sieve Shaker

Code: CEST271

This is Yodar type, motor driven sieve shaker for carrying out wet sieve analysis of materials.

Specifications: Consists of a water reservoir and a holder for sieves, which can take upto 7 sieves of 150mm or 200mm diameter. Shaker is driven by a ¼ H.P motor through a belt drive. Shaker mechanism moves the sieves up and down in the reservoir. The reservoir has a water out-let for draining out the used water. Suitable for operation 230volts, A.C.

Compression Proving Rings

Code: CEST274

Proving Rings are used for load measurements and are used in the outfits of a number of Soil/Cement & Bitumen Testing Equipments like Direct Shear Test Apparatus, Triaxial Shear Test Apparatus, C.B.R. Test, Unconfined Test, Marshall Test etc.

They are made out of special steel carefully forged to give maximum strength and machined to give highest sensitivity combined with stability to ensure long life and accuracy. When compressive of tensile load is applied within the elastic range, the proving rings get temporarily deformed. This deformation is measured by a sensitive dial gauge fixed co-axially at The center of the proving ring. The dial gauge readings thus obtained versus load applied enable the operator to find out unknown load, just by noting the dial gauge reading for the unknown load. The proving Rings have high elasticity and on removing load they regain their original shape provided they are loaded in their elastic limits.

A dial gauge and plunger anvil are mounted on brackets clamped to the ring body. The dial gauge is held perfectly rigid without the remote chance of shifting due to inadvertent shocks or pressure exerted on it. The dial gauge plunger rests on an adjustable anvil.

Proving Rings, from 50kg to 1,00,000kg capacity provided ½ inch B.S.F. female threads Loading bosses and a loading ball nipple and steel ball are supplied with each ring. Rings of capacity over 25000kg (or 25 Tonnes) are not thus threaded. Each ring is individually calibrated and supplied with works calibration chart and a carrying case.

Calibration Charts from Standard Laboratories for the Proving Rings ordered are also avaiLable at extra cost. All Proving Rings are Integral Type. Integral type compressive Proving Rings of different capacities from 50kgf to 200000 kgf are avaiLable.

  • Above cap. 50 to 500kgf .,
  • Above cap. 500 to 3000kgf .,
  • Above cap. 3000 to 5000kgf .,
  • Above cap. 5000 to 10000kgf .,
  • Above cap. 10000 to 20000kgf .,
  • Above cap. 20000 to 30000kgf .,
  • Above cap. 30000 to 50000kgf .,
  • Above cap. 50 000 to 100000kgf .,
  • Above cap. 100000 to 200000kgf .,
  • Above cap. 200000 to 300000kgf .

Tension And Compression Type Proving Ring

Code: CEST277

AvaiLable From 200kg. To 10000kg. Capacities Tension Compressi0on Proving Rings are having standard ½" (BSF threads) and for measuring tension, 2 Nos. tension rods having male threads at both ends are supplied. For measuring loads in compression these tension rods are removed and the ring can be used in usual way. Works calibration charts for tension and with each ring. Supplied complete with tension rods in a carrying case.

Note: We can also supply the following proving Rings. 1) Tension cum compression proving ring upto 10,000kg capacity 2) Double proving rings.

Laboratory Vane Shear (Motorized)

Code: CEST280

Similar to Laboratory Vane Shear Apparatus (Hand Operated) but electrically operated. Rate of rotation is 1/60 rpm. Suitable for operation on 230Volts, single phase, 50 cycles, A.C. supply

Pocket Vane Shear Apparatus

Code: CEST283

This is an accurate and portable instrument for the determination of in-situ shear strength of cohesive soils, either on-site or on undisturbed or remolded samples in the Laboratory. The instrument comprises of a torque head with a direct reading scale which is turned by hand. A not return pointer assists in reading. Vanes of either 19mm or 33mm dia, with rods are fixed to the underside of the torque head and can be pushed well into the undisturbed material below behind and excavated surface.

Portable Aluminum Derrick

Code: CEST286

Specifications: It is a light weight aluminum derrick can be dismatled for ease of transport. The equipment is suitable for shallow soil sampling, lifting casing, standard penetration tests and lifting operations. Complete with upper tie bolt and ball but without sheave.

Tripod Pulley

Code: CEST289

This is for use with above Portable aluminum Derrick. It attaches to the ball at the top of the derrick 'A' drill rods 1.5meter long with adaptor.

Triaxial Shear Test Apparatus (Hand Operated)

Code: CEST292

For determining the triaxial shear strength of soil specimens of 28mm diameter. The length to diameter ratio of sample is 1:2.

Specifications: One loading unit, for single unit, for mounting, capacity 5 tonnes. Hand operated. The loading unit is supplied with one dial gauge bracket. One Triaxial Cell for 38mm dia. specimen, stationary bushing. Lateral Pressure assembly. 0.10kg/cm sq. complete with foot pump and rubber hose. One dial gauge 0.01mm x 25mm for strain measurement. One high sensitive Proving Ring, capacity 200/250 kg with Calibration Report and carrying care.

Triaxial Shear Test Apparatus (Motorized) Single Speed

Code: CEST295

Same as above but supplied with motorized load frame. The load frame supplied with this outfit is bench mounting type motorized load frame of 5000 kgf having constant rate of strain 1.25 mm/min suitable for operation on 230 Volts A.C.

Triaxial Shear Test Apparatus (Motorized)

Code: CEST298

Same as above but supplied with motorized load frame 5000kgf (floor model), giving the following six rates of strain. 1.25, 0.25, 0.05, 0.01, 0.002, 0.0004mm/min. The load frame operates on 230 Volts A.C.

Triaxial Shear Test Apparatus (Motorized) Six Speed

Code: CEST301

For determining the triaxial shear strength of soil specimens of 38 mm, 50mm, 75mm, and 100mm dia. Consists of: One load frame 5000 lgf motorized, constant six rates of stain type, giving the following rates of stain. 1.25, 0.25, 0.05, 0.01, 0.002, 0.0004 mm/min. Load frame is supplied with a dial gauge bracket. Universal Triaxial Cell (Stationary Bushing) 10 kg/cm/sq. One Lateral Pressure Assembly 0-10 kg/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 Volts A.C.

Universal Triaxial Shear Test Apparatus (Motorized) 30 Speed

Code: CEST304

Same as above but the motorised load frame capacity 5000kgf has 30 rates of strain from 0.00048 mm/min to 6.0mm/min. Suitable for operation on 230 voolts A.C.

Accessories: High sensitivity Proving Ring capacity 200/250 kgs with calibration Chart and carrying case. High sensitivity Proving Ring capacity 2500 kgs with Calibration Chart and carrying case
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