A loose, uncompacted sand fill 6-ft in depth has a relative density of 40%. Laboratory tests indicated that the maximum and minimum void of the ratios of the fill material are 0.9 and 0.46, respectively. The specific gravity of solids of the soil is 2.65. If the final height of the fill after compaction is 5.4 ft, the relative density of the compacted fill is most nearly

A loose uncompacted sand fill 5 ft in depth has a relative density of 40%. Laboratory tests indicated that the minimum and maximum void ratios of the sand are 0.46 and 0.90, respectively. The specific gravity of solids of the sand is 2.65. a. What is the dry unit weight of the sand? b. If the sand is compacted to a relative density of 75%, what is the decrease in thickness of the 5-ft fill? Note: Weight of solids is constant before and after compaction

PROBLEM No. 6 A loose, uncompacted sand fill 6 ft in depth has a relative density of 40%. Laboratory tests indicated that the minimum and maximum void ratios of the sand are 0.46 and 0.90, respectively. The specific gravity of solids of the sand is 2.65. a. What is the void ratio of the sand in natural state? b. What is the dry unit weight of the sand in Ib/ft? If the sand is compacted to a relative density of 75%, what is the decrease in thickness of the 6-ft fill? С. d. What is the final height in ft after compaction?

An undisturbed sample of fine sand is tested in the laboratory and found to have a dry mass of 3.23 kg, a total volume of 0.00187 m3and a specific gravity of 2.65. Other laboratory tests are performed to determine the maximum and minimum density for the sand. At the maximum density, it is determined that the void ratio is 0.38; at the minimum density, the void ratio is 0.85. Determine the relative density of the undisturbed sample.