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SUBJECT
Test of unit weight of soil can be determined using the following methods: Water Displacement Method, Submerged Mass Density Method, Core Cutter Method, Sand Replacement Method.
Test of specific gravity can be computed using 50 ml density bottle,500ml flask or pycnometer. Density bottle method is accurate & suitable for all soil.
Interrelationship Between Voids ratio (e), Water Content (w), Specific Gravity (G), Degree of Saturation(s), Dry Unit Weight ,Unit Weight of Water, etc
Relative compaction is defined as the ratio of the dry unit weight of soil in the natural state to the dry unit weight of soil in the densest state. it can applied for both cohesionless &cohesive soil.