Liquid Limit Device IS: 2720 (PART V)

+91-11-25920433

+91-11-41428065

Model: ASI-805

As Per IS : 9259, BS: 1377, AS:89

Casagrande method in mechanical form is known as Liquid Limit Method and has been is use for soil mechanics for a number of years.

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 and infinitesimal 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 grove 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 0.17 N/cm/sq.cm.(17gms/sq.cm.)

At this water content soil just passes form liquid stage to plastic state.

Specifications:

It consists of a brass cup held on an adjustable bracket.

The cup can be adjusted for a fall of 1cm and cam be raised and dropped on a rubber base of standard hardness by cam action.

Complete with one casagrande grooving tool, one ASTM Grooving tool and a heigh gauge block (Type A of IS 9259)

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