Following are the results of a field unit weight determination test performed by means of the sand cone method:
• Calibrated dry density of Ottawa sand = 1731 kg/m3
• Mass of Ottawa sand to fill the cone = 0.118 kg
• Mass of jar + cone + sand (before use) = 6.08 kg
• Mass of jar + cone + sand (after use) = 2.86 kg
• Mass of moist soil from hole = 3.34 kg
• Moisture content of moist soil = 12.1%
Determine:
a. Dry density of compaction in the field.
b. Relative compaction in the field assuming that the test data in Problem 6.5 represent the same soil as in the field