Field Desity Test Apparatus Core Cutter method (Metal Rammer/Hammer For Driving Core Cutter)  is used for the in place determination, of the dry density of compact, fine and medium grained soils. It measures relative density of soil which has been compacted using compacting equipment and the result of this test is expressed in %. This relative density is measured by comparing maximum dry density obtained from field test with maximum dry density of laboratory test as a standard reference

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