Question: A plate loading test was conducted in the field for subgrade quality control ( Q C ) purposes. A surface deflection of 2 5 mils

A plate loading test was conducted in the field for subgrade quality control (QC) purposes. A surface
deflection of 25 mils was measured when a total load of 9,000lbf was applied to a rigid plate of 24-in
diameter. Assuming a Poisson's ratio of 0.45, estimate the elastic modulus of the subgrade.
A plate loading test was conducted in the field

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