A compacted fill is to be constructed to support a new highway. The fill materia

Question

A compacted fill is to be constructed to support a new highway. The fill material will be taken from a location ("borrow pit") where the in-place dry unit weight is 105 pcf and the water content is 9%. The soil will be excavated from the borrow pit, moistened to increase the water content to 13.5% (assume i will not change the volume of solid mass) and then compacted to a final dry unit weight of 118 pcf. The total final volume of the compacted fill will be 250,00 cubic yards. The specific gravity of soil is 2.70. a) How many cubic yards of soil must be excavated from the borrow pit? b) How many gallons of water must be added to the excavated soil to raise the water content to the proper value?

Explanation / Answer

vist here tp://ftp.mdt.mt.gov/research/LIBRARY/AR-TRC-0406.PDF

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