PORTABLE SWELL TEST APPARATUS WITH PROVING RING DIAL GAUGE
Dr. R.S. Kutti, a renowned geotechnical engineer, developed a portable swell test apparatus to assess the swelling characteristics of expansive soils. This lightweight and portable device enables on-site evaluation of soil swelling potential, which is crucial for construction projects involving expansive clays.
DETERMINATION OF MODULUS OF SUBGRADE REACTION (K-VALUE) OF SOILS IN FIELD
This method for the determination of modulus of subgrade reaction of the soil in place (generally known as K-value of the subgrade ), for evaluation of strength of subgrade for roads, runway pavements and raft foundations. The set up consist of Bearing plates of 75cm dia, 60cm dia, 45cm dia and 30cm dia X 25mm thick (1 No.each size), Loading attachment with ball and socket joint, Hydraulic or Screw Jack of 150 KN Capacity, Calibrated Proving ring of 150 KN with dial gauge, Digital Dial gauge of 0.001mm x 12.7mm travel (3 Nos.),Datum bar of 5 meter length, Jack pads. Supplied without reaction beam. On site arrangement for Reaction Beam or Truss or Truck or Trailer (as per the requirement of test) will be arranged by the user/customer. As per IS:9214-1979
SOIL PERMEABILITY APPARATUS FOR CONSTANT AND VARIABLE HEAD TEST - IS 2720 (PART -17)
The permeability test of soil, as per IS:11209, is intended to determine the coefficient of permeability, which describes how easily water can flow through soil. This parameter is essential for understanding groundwater movement, soil drainage properties, and designing earth structures like dams, retaining walls, and foundations. The apparatus will be confirming to IS: 2720 (Part-XVII), IS 9198 & IS: 11209 latest edition
WET WASHING SIEVE - 75 MICRON
The wet washing sieve method is critical for reliable grain size analysis, especially when testing fine-grained or cohesive soils. It ensures better separation of particles and improves the accuracy of soil classification. Standards such as IS 2720 (Part 4), ASTM D1140, and AASHTO T11 define the procedure and requirements for conducting the test.
FIELD DENSITY TEST APPARATUS - WATER REPLACEMENT METHOD - IS 2720 (PART 33)
The field density test by the water replacement method, as per IS: 2720 Part XXXII, is used to determine the in-situ density of soil, particularly in cases where sand replacement or core cutter methods may not be suitable. The water replacement method involves creating a cavity in the soil and determining the volume of the cavity by measuring the water required to fill it. The field density is calculated by dividing the mass of the soil removed by the volume of the cavity, allowing for accurate density measurements in cohesive and coarse-grained soils.
GRAIN SIZE ANALYSIS APPARATUS PIPETTE METHOD - AS PER IS2720 PART-IV
For the determination of distribution of grain sizes smaller than 75-microns. Used for Gain size analysis of the fraction passing 75 micron IS sieve out of the portion passing 4.75mm IS sieve. As per IS:2720 (Part 4) and BS 1377-2.
HYDROMETER JAR BATH (ASTM D7928-17, ASTM D6913)-SEDIMENT TEST
The Hydrometer Jar bath maintains a constant temperature (e.g., 20°C) for the sedimentation cylinder during the test. The same bath can be used to Maintains a constant temperature @15°C for the test requirements as per ASTM D1298.
DIGITAL TRIAXIAL SHEAR TEST APPARATUS - FOR CD UU CU TEST WITH DEDICATED PC SOFTWARE
As per (IS:2720 Part XI & XII) for determining the shear strength parameters of saturated soils from triaxial compression shear tests conducted under consolidated undrained conditions with measurements of pore water pressures. The Triaxial Test System provides triaxial compression tests on cylindrical undisturbed and remolded soil samples. Unconsolidated undrained (UU), consolidated drained (CD) and consolidated undrained (CU) compression tests can be carried out using this apparatus. Supplied Triaxial cells for 38mm/40mm/70mm/100mm dia specimens, Multi speed Loading Frame 50 KN with Load Cell, Pore Pressure Transducer, LVDT, Air/Water Constant Pressure system with air compressor. To work on 220/230 Volts, single phase, AC power supply. De-airing system with vacuum pump, Automatic Volume change gauge, Three Cell Saturation Device, wall mounted. Split Molds, Three Part split Molds, Sample extractor etc. are also available
TRIAXIAL SHEAR TEST APPARATUS - FOR 38MM DIA SPECIMEN - FOR UU, CD AND CU.
As per (IS:2720 Part XI & XII ) for determining the shear strength parameters of saturated soils from triaxial compression shear tests conducted under consolidated undrained conditions with measurements of pore water pressures. The Triaxial Test System provides triaxial compression tests on cylindrical undisturbed and remolded soil samples. Unconsolidated undrained (UU), consolidated drained (CD) and consolidated undrained (CU) compression tests can be carried out using this apparatus. Supplied complete with Triaxial cell for 38mm dia specimen, Loading Frame 50 KN with 6 different speeds, Proving ring 2 KN with Calibration report, Dial Gauge 0.01 X 25mm travel, Analog readout to measure pore water pressure and Air/Water Constant Pressure system with air compressor.. To work on 220/230 Volts, single phase, AC power supply. Volume Change Gauge, De-airing apparatus, Accessories for soil sample preparation, extrusion, trimming and for measurement of size, weight, water content, etc. can be supplied at extra cost .
DIGITAL CBR LOAD FRAME
Single speed of 1.25/min. Working on 230 Volts AC single Phase. The Load frame consist of a geared Motor and Bronze Gears for long lasting performance.
CONSTANT PRESSURE SYSTEM - (OIL WATER)
A constant pressure system in triaxial testing is a crucial component designed to apply and maintain constant pressure to the specimen, typically confining pressure (cell pressure) or back pressure, during the test. As per IS:2720(Part-11)
DE-AIRED WATER APPARATUS
De-aired water is crucial in soil and rock testing, especially for triaxial tests, to prevent inaccuracies caused by air bubbles. The presence of dissolved air can: Affect pore water pressure measurements, reduce sample saturation, Impact fluid permeability and disturb the effective stress principle: Accurate triaxial testing relies on maintaining proper pore pressures, which is not possible if air remains in the system. As per IS:2720(Part 11), ASTM D7181 , BS 1377-8,
THREE CELL SATURATION WALL MOUNTING PANEL FOR TRIAXIAL SHEAR APP.
As per ASTM D4767/ IS 2720 (Part 11)/ BS 1377-8. The Three-Cell Saturation test is a critical preparatory step for triaxial shear testing, It is essential for accurately determining soil or rock samples' shear strength under controlled saturation conditions.
AUTOMATIC SOIL COMPACTOR FOR PROCTOR AND CBR TEST
Automatic compactors are essential in geotechnical engineering for conducting Proctor compaction tests, which determine the optimal moisture content and maximum dry density of soils. These devices ensure uniform and repeatable compaction, reducing manual effort and enhancing test accuracy. With Digital Automatic Blow Counter and Controller. As per IS:2720 (Part 7 and 8)
