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Proctor Penetrometer (AIM 164)

Ref. Standard ASTM D 1558


Compaction control in the field is exercised by determining the moisture content and dry density. Quick evaluation of this is done by developing curves in the laboratory, showing the relationship between moisture content versus dry density and penetration resistance, using Proctor Needles while conducting the Standard Compaction tests.Consists of a body housing a spring a plunger calibrated to read 0-40 kg x 1 kg and a handle. Two stems are provided, a larger stem and a shorter stem, both graduated at 12.5 mm intervals, to indicate the depth of penetration. The larger stem and the smaller stem are used with needles of larger and smaller areas respectively.