In a freshly compacted highway fill, a sand-volume apparatus has determined the volume of an excavation to be 0.50 cu. ft. (0.01415 m³). If the weight of material excavated is found to be 58.0 lbs (258.1 N) with a moisture content of 10.4%, what is the dry unit weight of the soil (γo), as compacted

Question

In a freshly compacted highway fill, a sand-volume apparatus has determined the volume of an excavation to be 0.50 cu. ft. (0.01415 [latex]m^{3}[/latex]). If the weight of material excavated is found to be 58.0 lbs (258.1 N) with a moisture content of 10.4%, what is the dry unit weight of the soil ([latex]γ_{o}[/latex]), as compacted? k = 1.7 W/m/°C

Accepted Answer

Given: [latex] V=0.5 cu.ft, W=58.0 lbs , \omega =10.4 \% [/latex]

From Equation (7.1),

[latex]F_{E} =\frac{F_{P} }{L_{P} } [/latex] (7.1)

[latex]\gamma _{\omicron }=\frac{W}{V\left(1+\omega \right) } =\frac{58.0}{0.5\left(1+0.104\right) } =105 pcf\left(10.7 kN/m^{3} \right). [/latex]

Question 7.2: In a freshly compacted highway fill, a sand-volume apparatus...

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