9. The degree of compaction of a type of sand in the field is 93.5%.  considering  Yd max =16.98 kN/m3 and Yd min = 14.46 kN/m3, what is the field dry specific gravity and relative compaction compactness?

Soil

A 2-ft tall sand fill material was placed loosely at a relative density of 50%. The maximum and minimum void ratios of the fill material are O.75 and 0.3, respectively. Specific gravity of soil is 2.65. If the final height of the fill after compaction is 1.8 ft, the relative density of the compacted fill is most nearly? 80% 90% 95% 85%

The following are results of a field unit weight determination test using sand cone method: Volume of hole= 0.0015 m^3 Mass of moist soil from hole = 3.07 kg Water content = 12.24% Maximum dry unit weight from a laboratory compaction test = 19.28 kN/m^3 Determine the relative compaction, in percent.