Problem
(a) If the dry-rodded unit weight of an aggregate is 105 lb/ft3 (1680 kg/m3 ) and its specific gravity is 2.65, determine the void content.
(b) A sample of sand weighs 500 g and 480 g in "as received" and oven-dried condition, respectively. If the absorption capacity of the sand is 2 percent, calculate the percentage of free moisture.
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.