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3 cards from this section. Quick, good the night before a test.
Define dry unit weight.
Think about how we measure soil weight.
What is a void ratio?
Consider the space versus the solids in the soil.
What does dry unit weight measure?
Think about what 'dry' refers to.
True or False: Porosity and void ratio provide the same information.
Evaluate how each term is defined.
A soil sample has a dry unit weight of 1400 kg/m³ and a moisture content of 25%. How much weight does 1 m³ of this soil have when saturated?
Consider how moisture content modifies the weight.
How does an increase in air voids affect the dry unit weight of soil?
Think about the balance between solids and voids.
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