Kolkata based manufacturer and exporter of Standard Test Sieve, Geologists Field Equipment & Instruments, Materialographic Testing Equipment & Accessories, Scientific Testing Instruments, and Testing Instruments for Soil, Cement, Concrete and Bitumen

Geologists' Syndicate Pvt. Ltd.

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Testing Instruments For Soil & Cement


Testing Instruments For Soil & Cement
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A well-established and reputed company is engaged in manufacturing and exporting the highest quality Scientific Testing Instruments, which are very accurate and effective for Soil, Cement, Concrete, Bitumen, etc testing. Our Soil Testing Instruments and Bitumen Testing Equipment are available at very cost-effective prices to satisfy the customers. These Compression Testing Machines cater various testing requirements and successfully meeting international quality standards. These products are also available in compact and elegant designs.

Geosyn Liquid Limit Device ( Manual) With Counter: Our Liquid Limit Device , manually operated and fitted with revolution counter for counting number of falls of the brass bowl on the rubber pad complete with grooving tools ASTM and Casagrande. The entire mechanical device is made of brass and is fixed on a rubber base. The grooving tools are also made of brass.

Geosyn Permeability Test Apparatus: Permeability is the property of soil which permits flow of water through its interconnecting voids. It is an important engineering property which governs the rate of settlement of saturated compressible soil layers and the rate of flow of aquifer. Permeability depends on numerous factors and hence it is always considered more accurate to determine permeability by direct laboratory method using apparatus called Permeameter.

Falling Head Type Permeability Apparatus as shown in the illustration in page (1) is used for testing remoulded or undisturbed fine grained soil having maximum particle size of 10mm. The laboratory Permeability Apparatus Falling Head type consists of:-
  • Stand: with three glass tubes of 6mm, 10mm and 20mm dia. approx.

  • Metallic Mould: 100mm dia x 127.3mm high, 1000c.c. volume.

  • Extension Collar: 100mm dia x 60mm height.

  • Drainage Base Plate: with a recess for Porous Stone and an outlet valve.

  • Drainage Cap: with recess for Porous Stone and fitted with inlet valve and Air release valve.

  • Dummy Plate: to serve as false bottom during compaction.

  • Porous Stones: For drainage base and drainage cap.

California Bearing Radio Test Apparatus Motorized As Per IS: 2720 (Partxvi): The CBR test is used for determining the relative bearing ratio and expansion characteristics under known surcharge weight of base, sub base & subgrade soils for the design of roads, pavements and runways.

Specification: The apparatus consists of Load frame motorized capacity 50KN (5000kgf) having three rates of strains i.e. 1.25, 1.5, 2.5mm/minutes. It also consists of a screw jack with detachable handle. The lower pattern moves up & down. The top braket is adjustable for vertical clearance and has an adaptor for connecting standard providing rings. A dial gauge mounting bracket is provided on one of the two pillars. Suitable operation on 220volts, 50 hz, single phase AC supply.
  • CBR Mould made of M.S. 150mm, I.D.X 175mm high with extension coller 150 mm I.D. X 50mm high.

  • Perforated bse plate for the above mentioned mould made of gunmetal.

  • Penetration Piston having 50mm face dia.

  • Adjustable bracket for Penetration Dial gauge.

  • ular metal spacer disc with detachable handle 148mm dia X 47.7mm high.

  • Annular metal weight 2.5 kg, 147mm dia with 53mm dia. central hole.

  • Slotted metal weight 2.5kg, 147mm dia with 53mm dia slot.

  • Perforated plate 148mm dia. with adjustable stem and lock nut.

  • Metal tripod made of C.I. for dial gauge.

  • Cutting coller.

  • Rammer 2.6kg X 310mm controlled fall.

  • Rammer 4.89kg X 450mm controlled fall.

  • Providing ring capacity 50 KN, fitted with dial gauge 25 mm travel, & 0.01mm least count with or without RTC calibration certificate.

  • Dial gauge 25mm travel & 0.01mm least count.

Geosyn Rapid Moisture Meter: It is most popular in determining the moisture contents of soil, sand, various types of pastes, powders and mixes etc in-situ, within a very short time. The instrument operates on the principle of a reagent being introduced to the free moisture in the sample to be tested. This forms a gas, the amount being dependent upon the amount of free moisture in contact with the reagent. By containing the resultant gas in a sealed chamber, it is possible to measure the created gas pressure. The gauge in the instrument is calibrated to interpret this pressure as the percentage in the sample on the wet weight basis.

The instrument contains:
  • Aluminium Pressure Vessel with a detachable cup, U-clamp, Clamp screw and a gauge calibrated in percentage of moisture content on wet weight basis.

  • A counter poised balance, mounted on a base attached in the carrying case, and be swiveled into position when require. The balance armis pre-loaded to indicate level when correct weight (5gms.) sample is placed in the pan.

  • A scoop for measuring the absorbent

  • One Container of the absorbent.

  • One cleaning brushes

  • Steel balls.

Geosyn Triaxial Cell with Accessories: GEOSYN Triaxial Cells confirm to the requirements of IS: 2720 (Part 11 & 12) are made from corrosion resistant material like stainless steel plunger and bushing. The cell cylinder is made from acrylic plastic material and those for use upto 20 bar (20kg/cm.sqr.).

Each cell has four take-off positions, drilled in the base: Cell Pressure: Pore Water pressure: Drainage or back pressure Valves are of 'no volume change 'type Accessories: Sample size: 38mm Perspex loading: 1no. ; Plain Perspex disc: 2nos; Porous stone: 2nos. ; Sheath Stretcher: 1no. ; Rubber Sheath: 12nos. ; Drainage Tube (short) 1no. ; Drainage Tube (long) 1no. 'O' Ring: 4nos., Pedestal metallic: 1no.

Geosyn Direct Shear Apparatus: The Direct Shear Apparatus conforms to IS-2720 (Part 13). The apparatus consists of a square box divided into two halves. The specimen contained in a box, is subjected to a constant normal load while increasing horizontal force is applied to one of the sections of the shear box. The force causes a shear failure along the juncture between the box sections. The shear force and normal load are measured directly.

The rate of strain is adjusted by the speed of the horizontal force applied loading unit has V-strips on which the shear box assembly rests. The recalibrated load yoke helps counter balance the loading system. The load yoke with direct and through level system for applying force upto 8kg/cm2 capacity, fixtures for proving ring, brackets for holding consolidation and strain dial gauges are provided.

The lead screw connected to the shear box housing helps application of shear stress. The apparatus consists of shear box assembly, shear box, plate gripper plate, perforated gripper plate, porous stone, top loading pad, base plate, shear box housing, weights, proving ring and dial gauges.

VICAT Needle Apparatus: Our Vicar Needle Apparatus conforms to IS - 5513, for determining consistency and setting time of cement. The set comprises of one number each of vicar mould made of brass, glass base plate, consistency plunger and setting time needle initial and final.

Compression Testing Machine: A





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