$1-$ Given: Compaction test on a sandy soil resulted in a three points for the compaction curve as follows:

Test Results: Trial $1$

Water content$/$Dry unit weight $($lbs$.\frac{?}{f{t}^3})(7\mathrm{.}0/132\mathrm{.}5,7\mathrm{.}5/134\mathrm{.}5,8\mathrm{.}5/133\mathrm{.}8)$

Gs for the soil is $2\mathrm{.}65.$

ZAV water contents of $7\%,8\%,$ and $9\%.$

Find: Plot the ZAV curve and the trial test points. Report the maximum dry density unit weight and the

optimum water content.

Solution: