A sample of soil has a volume of 0.45 ft3 and a weight of 53.3 lb. After being dried in an oven, ithas a weight of 45.1 lb. It has a specific gravity of solids of 2.70. Compute its moisture contentand degree of saturation before it was placed in the oven.

A sample of soil has a volume of 0.45 ft3 and a weight of 53.3 lb. After being dried in an oven, ithas a weight of 45.1 lb. It has a specific gravity of solids of 2.70. Compute its moisture contentand degree of saturation before it was placed in the oven.

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter3: Weight-volume Relationships And Plasticity

Section: Chapter Questions

Problem 3.5P

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Concept explainers

Soil Compaction Test

Soil compaction is the major area of geotechnical engineering. Soil is composed of multiple pores present on its surface, while the soil is mainly composed of gravel, sand, rocks, etc. The arrangement of these rocks and gravels is such that they build up voids (spaces) between them, which allows spaces for the roots of the plants and crops to spread and absorb the required amount of nutrients. Soil compaction is a major problem primarily caused by human activities, micro-organisms, and other multiple factors.

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A sample of soil has a volume of 0.45 ft3

and a weight of 53.3 lb. After being dried in an oven, it
has a weight of 45.1 lb. It has a specific gravity of solids of 2.70. Compute its moisture content
and degree of saturation before it was placed in the oven.

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Step 1: Determine the moisture content of the sample before placing it in the oven;

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Step 2: Determine the degree of saturation for soil by using the equation;

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Step 3: Determination of the void ratio of the soil by using the equation.

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