Asegment of interstate highway requires the construction of an embankment of 500,000 yd^3. the embankment fills to be compacted to a minimum of 90% of modified proctor maximum dry density. a source of suitable borrow has been located for construction of the embankment. tests showed that the required dry density can be achieved with the existing moisture content of the borrow pitmaterial. the following data is provided:
dry unit weight of soil in the borrow pit = 113 pcf
moisture content in borrow pit = 16 %
specific gravity of the soil particles = 2.65
modified proctor optimum moisture content = 13 %
modified proctor maximum dry density= 120 pcf
1. assuming each truck holds 5 yd^3 and there is no loss of material during transport, find the minimum number of truckloads of soil required to construct the embankment.