💥Water Content determination Method:-
1)Oven Drying Method:-
Simple and most accurate method,not field method.
2)Sand Bath Method:-
Quick,Field method.
3)Alcohol method:-
Quick,Field method should not be used for organic soil containing Calcium Compound.
4)Torsion Balance Method:-
Quick,Lab method,Infra-red radiations are used for drying sample.
5)Pycnometer Method:-
Quick method,Suitable for Cohesion Soils.
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💥Thixotropy:-
The property of regaining a part of strength after disturbance of remoulded clay sample is known as thixotropy.
💥Liquid Limit:-
Water content at which soil changes from liquid to plastic state.
💥Plastic Limit:-
Water content at which soil changes from plastic state to semi-solid state.
💥Shrinkage limit:-
Water content at which soil changes from semi solid to solid state.It is the lowest water content at which a soil can be completely saturated.
💥SENSITIVITY:-
It denotes degree of disturbance of undisturbed soil sample.
💥Liquefaction:-
Phenomenon in which soil losses its strength due to cyclic loading.
💥Honey-combed structure:-
Present in fine sands or silts.
💥Flocculated structure:-
Occurs in fine Clays and Colloids.
💥Dispersed structure:-
Occurs in remoulded Clays.
💥For Coarse grain Soil:-
Single grained structure.
Honey-combed structure.
💥For mixed soils:-
Coarse grained skeleton.
Clay matrix structure.
