Code: CEST061

As Per IS: 2720 (Part VII & VIII)

Now-a-days almost every soil Laboratory conducts compaction and penetration tests on soils. In both standard and heavy compaction test the operator has to count the number of blows of the rammer on each layer of soil during compaction. A mechanically cum electrically operated automatic compactor is therefore devised to eliminate tedious hand compaction process. Which also considerably saves time with the rammers provided two stroke lengths. AvaiLable the compactor can be used for normal compaction/heavy compaction as well as C.B.R. compaction.

Specifications: It is a motor driven mechanical compactor useful for soil compaction into 100mm or 150mm diameter moulds. Two sets of rammers are provided, one of 2.6 and arranged for 310mm. drop and other 4.9kg and arranged for 450mm fall. For compaction soil into 150mm dia. moulds, 100mm face dia. rammers having weight .6kg and 4.89 kg are used. Where as for 100 mm dia. moulds they are of 50mm dia. The rammer assembly is provided with a ratchet 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 in 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 fitted to the rotating base plate of the th instrument which make 1/5 revolution per stroke. The equipment is suitable for operation on 230Volts, 50 cycles, single phase, A.C. supply. Mould are to be ordered separately.

Code: CEST064

As Per IS: 2720 (PART-IX) 1971- 1978

This is used for rapid determination of moisture content dry density relation using a constant weight of dry soil passing through 75 micrometer IS sieve.

Specification: It consists of a metal cylindrical tube having 50mm I.D and 435 mm height, a detachable base plate and a cap are provided for this tube. 8. nos. 1.5 mm dia. holes equally spaced are drilled at a height of 100mm from the base of the tube. A metal rammer 48mm dia. x 48.5 mm in height is attached to a metallic rod with knob, so as to have a combined height of about 550 mm and a total weight of 2.6kg. This rammer is adjusted for a free fall of 310mm. The graduations in millimeters and centimeters are marked on this rod, to coin side with zero (0) of the scale with the cap of the tube. Graduation are marked downward 0 to 8 cm with millimeter divisions. Plate has internal diameter of 50mm dia. OD of 140 mm and height of 25mm is supplied with flange and wing nuts for easily introducing soil sample and removing it.

Code: CEST067

As Per IS: 2720 XIV

This equipment is used for the determination of the relative density of cohesionless free draining soils and meets the essential requirements of IS 2720 (Part-XIV).

Specifications: The equipment consists one each of: Vibratory table with a cushioned steel vibrating deck about 75 cm x 75 cm. It has a frequency of approximately 3600 vibrations per minute under a 115 kg load. Amplitude is variable in between 0.65mm in steps of 0.05 to 0.25mm, 0.25 to 0.5mm and 0.45 to 0.65mm. Suitable for operation on 415 volts, three phase supply. Cylindrical metal unit with mould, 3000 ml capacity. Guide Sleeve with clamp assembly. Surcharge base plate for mould. Handle for surcharge base plage. Surcharge weight. The total weight together with surcharge base plate and handle is equivalent to 140kg./sq.cm. for mould. Cylindrical metal unit weight mould 15000ml capacity. Surcharge base plate for guide sleeve. Surcharge weight for cylindrical mould of 15000 ml. cap. (Total weight together with the above mould 8 surcharge weight is equivalent to 140 kg./sq.cm.) Dial gauge holder & calibration bar 75 c 300mm x 3mm.

Accessories: Dial gauge 0.01mm x 50mm travel. Extension piece 25mm for dial gauge.

Code: CEST070

To determine moisture contents in soil and other material. These are made from aluminum or stainless steel. Sizes avaiLable are (a) 25 mm dia., (b) 50 mm dia., (C) 75 mm dia., (d)., 80 mm dia. and (e) 100 mm dia.

Code: CEST073

This instrument is used to estimate approximate unconfined compressive strength and the estimation of shear strength of soil. Cohesive soils can also be classified in terms of consistency using this penetrometer. This is a handy and convenient instrument. Specifications: It consists of a light weight barrel assembly with a polished and ground steel loading piston plunger. A direct reading scale is engraved on the piston barrel and indicates load in kg./sq/cm/ A maximum load indicator ring is provided on the penetration plunger. The calibrated spring is heat treated and plated for rust resistance. The barrel diameter is 20mm and the length 150mm. Supplied in storage box.

Code: CEST076

Useful to determine specific gravity of clays, sand and gravel of size smaller than 10mm.

Specifications: Comprises a 1 kg glass jar with brass cone, locking ring and rubber seal.

Spare: rubber seal.

Code: CEST079

These bottles are used for relative density measurements, made from borosilicate glass with capillary bored stopper. Capacities avaiLable (a) 50 cc and (b) cc.

Code: CEST082

(With Optical Viewer) Also called proving Ring Penetrometer This is fork determining the bearing capacity of sub grades or for compaction control. It also used for rapidly determining the penetration resistance of soils in shallow exploration work.

Specifications: Consists of a study handle under which is fixed a sensitive Proving ring. An extension piece is fixed to the bottom of the Provingring and carried a detachable penetration cone at its tip. Proving ring capacity 100 kg (1 KN) and 0.0002 mm dial gauge provided indicates the penetration load applied. An optical viewer is provided to facilitate reading the dial gauge by te operator. Simplified for single person operation. A calibration chart is provided for the proving ring. Instrument is complete in a wooden carrying case.

Code: CEST085

Proctor needles are used for quick evaluation of maximum soil density in the field. Standard Compaction curves showing moisture contents versus densities are drawn in Laboratory using standard compaction method and penetration of the proctor needles are correlated. Proctor Needles are also known as Proctor Penetrometers.

Code: CEST088

The instrument consists of a needle attached to a spring loaded plunger, the stem of which is calibrated to read to 40 kg division. Long Stem is graduated at every 12.5 mm to read depth of penetration and for use with needles of larger areas. The small penetration stem is also graduated in 12.5 mm division and is used with needles of smaller areas. Needle points one each of 0.25, 0.5, 1.0, 1.5, 2.0, .3.5 and 6.0 sq. cm. and one tommy pin is supplied. Complete as above in a wooden carrying case.

Code: CEST091

This is identical to Springs Type, except that the penetration pressure on the needle is conveyed through a hydraulic system to a hydraulic pressure gauge. This system permits a greater control over rate of penetration because of better visibility of load indication.

Specifications: Comprises hydraulic proctor needle system complete with a pressure gauge fixed at easily readable angle reading 0-70kg. x 2kg. A set of needle points consisting one each 0.25, 0.5, 1.0, 1.5, 2.0, 3.5 and 6.0 sq. cm. and a tommy pin. Graduation at every 12.5 mm to indicate depth of penetration are marked on longer stem for use with needles of larger areas. Smaller stem is also graduated at every 12.5 mm and is used with needles of smaller areas. Complete as above in a wooden carrying case.

Code: CEST094

As Per IS: 2720 (Part-XXXII)

This test is simpler and more rapid than the CBR test and can be easily applied for insitu field test. This was developed by North Dakota Highway Deptt. For use with pavement design method similar to that associated with CBR test.

Specifications: The instrument consists of a rod carrying a loading platform at the top and a hardened steel cone at the bottom.The rod is mounted vertically and slides freely up and down in the collars of the frame and can be locked in any position as required. The conical tip penetrates the soil through an aperture in the cast iron base. The loading platform. Carries a graduated plunger which enters one of the side supports and permits the reading of the penetration correct to 1 mm, Supplied with set of weights consists 7 nos. 5 kg weight and one hardened steel cone.

Code: CEST097

For quick determination of moisture content of materials in powder form viz. soil, and, coal, pottery slip, cement etc. Calcium Carbide when comes in contact with moisture acetylene gas is generate This principle is used in Rapid Moisture Meter. A weighed quantity of sample is mixed with fixed quantity of Calcium Carbide reagent and the whole mixture is thoroughly shaken in a vessel to which a pressure gauge is fixed. The acetylene gas produced develops pressure and pressure gauge in calibrated to read percentage moisture. The instrument indicates moisture on wet/weight BLS easily convertible to dry weight basis.

Code: CEST100

Specifications: The unit consists of a pressure vessel with clamp for sealing cap, rubber sealing gasket, pressure gauge is calibrated in percentage moisture content 0-25% x 1% on the wet weight basic a counter poised balancefor weighing sample, a scoop for measuring carbide reagent, a bottle of reagent, one cleaning brush and a set of 4 steel balls for thorough mixing. Complete in highly polished wooden carrying case with handle.

Code: CEST103

Same as above but pressure gauge calibrated 0-50% x 1%. Spares: Carbide reagent, in bottles of 400gms each.

Code: CEST106

A very useful kit to determined on the spot soil pH value. This is a compact kit easy to carry on site.

Consists of: 12 thick walled test tubes with rubber bungs. 1 tube cleaning brush, 1 bottle of barium sulphate (100gm) 1 bottle of soil indicator (100gm) 1 bottle of distilled water (500gm) 1 Spatula, 1 color chart, range 4.0 to 8.0 pH in 0.5 pH steps. Complete with carrying case.

Code: CEST109

As Per IS: 2720 (Part-XV), BS 1377. ASDTM D-2435 Consolidation test is unidimensional test considered extremely important in soil mechanics. Sample taken from adjacent areas of a single site show different settlement even when tested using same techniques. Soil of similar strength may show varying consolidation. Samples are very carefully prepared and vertical settlement of the specimen in saturated or drained conditions carefully recorded when known load is applied.

Specifications: The standard outfit comprises of the following items. Loading unit, maximum capacity 20 kg/cm sq. having a loading yoke connected to a lever arm with a counter balancing adjustment and having a lever ration of 1:1, the whole assembly being mounted on a sturdy steel frame stand. The loading unit is so designed that it can be used for consolidation cells of different diameters as well as different dia floating ring type consolidation cells. Fixed ring type consolidometer (Odeometer) cell assembly for testing 60mm dia. x 20mm thick specimen comprising: Fixed ring for specimens 60mm x dia. 20mm. thick with guide ring. Top and Bottom Porous stones for 60mm dia. specimens. Perforated Pressure pad, Channelled base with water inlet and Gasket. Flanged Water Jacket, water reservoir with plastic tube and pinch cock. Set of weights to give a pressure of 10kg/cm.sq. on 60mm dia. specimen, comprising: 7nos. 0.05 kg/sq.cm., 5Nos. 0.1 kg/sq.cm., 6Nos. 0.2kg/sq.cm. and 5 Nos. 1.0kg/sq.cm. Supplied complete as above but without dial gauge. Accessories: Dial Gauge 0.002mm x 10mm. Extension piece, 40 mm long. Test forms pad of 50 for Consolidation Test Plot" Test forms pad of 50 for one Dimensional Consolidation. Optical Extras: Varying head stand pipe, 50cms. Long with mm. scale. Fixed ring type of consolidometer (Odeometer) cell assembly for 50mm dia. x 20 mm thick specimens complete with fixed ring guide ring, pair or porous stones, perforated pressure pad, channeled base, gasket and flanged water jacket. Set of weights to give a pressure of 10kg/sq.cm., on 50 cm. dia specimens. Fixed ring type of consolidometer (Odeometer) cell assembly for 70mm dia. x 20 mm thick specimens complete with accessories as above. Set of weights to give a pressure of 10kg/sq.cm on 70mm. dia. specimen. Fixed ring type of consolidometer (Odeometer) cell assembly for 100 mm dia. x 25 mm thick specimens complete with accessories as above. Set of weights to give a pressure of 10kg/sq.cm.on 100 mm dia. specimens.

Code: CEST112

Information of Shear values plays an important role the design of sub-structures in determining bearing capacity of soils, design of retaining walls, instability calculation earth slopes etc. Various Shear Apparatus are avaiLable and Direct Shear Apparatus is one of them. In Direct Shear test specimen contained in a box is subjected to a constant normal load and increasing horizontal load is applied to the upper section of the specimen. Shear force and load are directly measured.

Code: CEST115

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. Qty.

• 0.05 - 4 Nos.
• 0.1 - 1No.
• 0.2 - 1No.
• 0.5 - 3 Nos.
• 1..0 - 1No

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.

Code: CEST118

Same as above but having 6 rates of strain 1.25, 0.25, 0.05, 0.01, 0.002 & 0.0004 mm/min. Works on 230V A.C Nett Wt. 185Kg.