Soil Testing

Laboratory C.B.R. Test Apparatus

• Load Frame, Electricity cum Manually Operated 220 V, Single Phase AC Supply. 50 KN (5000 kgf) Capacity with Strain Rate of 1.25 mm per minute.
• CBR Mould with collar & base plate.
• Penetration Piston, 50 mm dia with bracket.
• Annular & Slotted Metal Weight 2.5 kg.
• Displacer Block 148 mm dia with T-Handle.
• Aluminum Tripod Stand.
• Perforated Brass Swell Plate with stem & locknut.
• Rammer 50 mm internal dia 2.6 kg kg.
• Rammer 50 mm internal dia 4.89 kg.
• Proving Ring 10 KN capacity with OurCalibration Certificate in teak wooden carrying case.
• Dial Gauge 0.01 mm x 25 mm travel.

Direct Shear Apparatus
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, 0.0004 and 0.0002 mm/min. The apparatus is suitable for operation on 230 volts single phase A.C. Supply.

For determination of the direct shear strength of soils on specimen size 60 mm x 60 mm x 25 mm.

Specifications: 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.

Gyrotary Sieve Shaker Sieve Shaker Motorized carries 7 sieves, 20 cm diameter. The Sieve Shaker is driven by 1/4 HP motor through reduction gearbox. Suitable for operation on 220V, 50 HZ, AC Supply.

Optional Extra :

• Time switch 0 - 60 Minutes.
• The Adaptor for 30 cm dia sieves Shaker.

Note: 45 cm dia sieves Shaker also available on request

Hand Operated Sieves Shaker for 20cm, 30cm and 45cm dia Sieves also available.

Sand Pouring Cylinder
This apparatus is used for determination of dry density of compaction. The Sand Pouring Cylinder(SMALL) 115 mm dia is fitted with conical funnel and shutter 3 liter capacity, cylinder calibrating container 100 mm dia x 150 mm ht, a metal tray 300 mm x 300 mm x 40 mm with 100 mm central hole.

ALSO AVAILABLE MEDIUM AND LARGE SIZE SAND POURING CYLINDER

Speedy Moisture Meter The unit consists of a pressure vessel with clamp for Sealing cap, rubber sealing gasket, pressure gauge calibration in percentage moisture content 0-25% on the wet weight basis (6 gm) counter poised balance for weighing samples, scoop for measuring reagent carbide, bottle of reagent carbide and cleaning brush. Complete in highly polished wooden carrying case with handle. The unit can be used to determine percentage moisture content on the wet weight basis upto 25% which is equal to 33.3% moisture content on the dry weight basis.

Same as above but 0-50% moisture meter also available.

Proctor Compaction Apparatus
Proctor Compaction Apparatus - Model 1
The set comprises of Proctor Compaction Mould 100 mm internal dia x 127.3 mm ht with 1000 cc volume. Made of Gun Metal / Mild Steel with collar & base plate and Rammer 50 mm dia 2.6 kg weight with 310 mm Controller Fall (For Light Compaction).

• Proctor Compaction Apparatus - Model 2
  The set comprises of Proctor Compaction Mould 150 mm internal dia x 127.3 mm ht with 2250 cc volume. Made of Gun Metal / Mild Steel with collar & base plate and Rammer 50 mm dia 4.89 kg weight with 450 mm Controller Fall (For Heavy Compaction).

Universal Automatic Compactor It is a motor driven mechanical compactor useful for soil compaction into 100 mm or 150 mm diameter moulds. Two sets of rammers are provided, one of 2.6 and arranged for 310 mm. drop and other 4.9 kg and arranged for 450 mm fall. for comaction soil into 150 mm dia moulds, 100 mm face dia rammers having weight 2.6 kg and 489 kg are used. Where as for 100 mm dia moulds they are of 50 mm dia. The rammer assembly is provided with a ratched and pawl arrangement to lift it from the top of the soil layer. When the rammer reaches the required height the pawl release the rammer which falls freely on soil surface. The release mechanism is operated by an arm moving up and down which is connected to a reduction gear coupled to the motor through another arm. An automatic blow counter fitted to the compactor is used to set the number of blows. The base plate of the specimen mould is to be fitted to the rotating base plate of the instrument which makes 1/5th revolution per stroke. The equipment is suitable for operation on 230 volts, 50 cycles, single phase, A.C. supply. Without Moulds.

Note : Mould are to be ordered separately.