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Section: SOIL
Shrinkage Limit Test
Index Properties of Soil
Soil Cone Penetrometer
Semi Automatic Cone Penetrometer
Liquid Limit Test
Grain Size Analysis
Bentonite Viscosity
Water Content & Dry Density of Soil
Soil Penetrometers
Moisture Meter
Soil Permeability
Field Density
Specific Gravity
Relative Density
Testing Kits
Extraction & Sample Preparation
Constant Volume Moulds
Consolidation
Direct Shear Apparatus
Unconfined Compress Testing
Triaxial Test (Cell & Setup)
California Bearing Ratio
Sampling Augers
Sampling Tubes
Static Cone Penetration Test
Vane Shear
Test Sieves
Sieve Shakers
Load Truss
Load Rings

Liquid Limit Device : ZI 3004
IS 2720 (PART V), BS 1377-2 , ASTM D 4318

Casagrande method in mechanical form is known as liquid limit method and has been in use for soil mechanics for a number of decades. The liquid limit data of soils is useful to correlate mechanical properties of soil, such as compressibility and lower shear strength. Liquid limit is the water content at which soil passes from zero strength to an infinite strength, hence the true value of liquid limit cannot be determined. For determination purpose liquid limit is that water content at which a part of soil, cut by a groove of standard dimensions, will flow together for a distance of 1.25cm under an impact of 25 blows in a standard liquid limit apparatus. The soil at the water content has some strength which is about 0.17N/cm. sq. (17gms/sq.cm.) . At this water content soil just passes from liquid state to plastic state. It consists on a brass cup held on an adjustable bracket. The cup can be adjusted for a fall of 1 cm and can be raised an dropped on a rubber base of standard hardness by cam action. Complete with one Casagrande grooving tool, one ASTM grooving tool and a height gauge block.


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Liquid Limit Device (with Counter) : ZI 3005


Same as ZI 3004 but fitted with a counter to register the number of blows.
Liquid Limit Device (with Counter)
Liquid Limit Device (Motorised) : ZI 3006

Same as ZI 3004 but fitted with a motor geared down to give approximately 120 rpm. Suitable for operation on 230 V A.C., Single Phase, 50 Cycles.

SPARES :
Casagrande grooving tool. ASTM grooving tool, height block, 1cm high.


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Liquid Limit Device (Motorised)
 
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