Density Drive Sampler
The Density Drive Sampler is used to determine the in-place density of soil by driving a thin-walled tube to obtain a soil sample of known volume.
The Sampler consists of a zinc plated steel drive head and sliding 10 lb hammer. The drive head is provided with a shock spring. Drive tubes are zinc plated.
Drive Tubes are available in two sizes:
- 3 in x 2.75 in (0.01 ft3)
- 4 in x 5 in (0.033 ft3)
ASTM D 2937, AASHTO T 204
Note: Because of the difficulty sometimes encountered with sample removal from the tube, swaged end tubes are not recommended in stiff soils.