Geotechnical Engineering

Weight–Volume Problems Involving Only Relationships

If only relationships (e.g., void ratio or unit weight) are given, the quantity of soil is indefinite and only
other relationships can be calculated. Nevertheless, it is convenient to solve such problems using a phase
diagram and assuming one fixed weight or volume value. That quantity of solids, water, or soil is “brought
to the paper” and used to calculate corresponding quantities of components. Although any one quantity
can be assumed to have any value, the following assumptions simplify calculations:

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