3.14 For a given soil, the following are known: Gs 5 2.74, moist unit weight,  5 20.6 kN/m, and moisture content, w 5 16.6%.Refer to Problem 3.14. Determine the mass of water, in kg, to be added per cubic meter (m3) of soil fora. 90% degree of saturationb. 100% degree of saturation

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Asked Nov 26, 2019
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3.14 For a given soil, the following are known: Gs 5 2.74, moist unit weight,
 5 20.6 kN/m, and moisture content, w 5 16.6%.

Refer to Problem 3.14. Determine the mass of water, in kg, to be added per
cubic meter (m3) of soil for
a. 90% degree of saturation
b. 100% degree of saturation

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Expert Answer

Step 1

Given data:

G 2.74
KN
20.6
m
moist
w 16.6% 0.166
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G 2.74 KN 20.6 m moist w 16.6% 0.166

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Step 2

a)Calculating dry unit weight and porosity:

1w
20.6
1+0.166
KN
=17.667
m
GY
1+e
GY
.e =
2.74x9.81
-1
17.667
0.52
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1w 20.6 1+0.166 KN =17.667 m GY 1+e GY .e = 2.74x9.81 -1 17.667 0.52

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Step 3

Calculating degree of satura...

Se = wG
0.166x 2.74
0.52
0.875x100%
87.5%
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Se = wG 0.166x 2.74 0.52 0.875x100% 87.5%

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