Chapter 3, Problem 3.16P

### Principles of Geotechnical Enginee...

9th Edition
Braja M. Das + 1 other
ISBN: 9781305970939

Chapter
Section

### Principles of Geotechnical Enginee...

9th Edition
Braja M. Das + 1 other
ISBN: 9781305970939
Textbook Problem

# The moist density of a soil is 1935 kg/m3. Given w = 18% and Gs = 2.7, determine:a. Dry densityb. Porosityc. Degree of saturationd. Mass of water, in kg/m3, to be added to reach full saturation

(a)

To determine

Calculate the dry density of the soil.

Explanation

Given information:

The specific gravity of the soil solids (Gs) is 2.7.

The moisture content (w) is 18%.

The moist density of soil (ρ) is 1,935kg/m3.

Calculation:

Calculate the dry density of the soil (ρd) using the relation.

ρd=ρ1+w

Substitute 1,935kg/m3 for ρ and 18% for w

(b)

To determine

Calculate the porosity of soil.

(c)

To determine

Calculate the degree of saturation.

(d)

To determine

Calculate the mass of water to be added to reach full saturation.

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