6.4.1 - Group Symbols for Coarse Soils
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Practice Questions
Test your understanding with targeted questions
What does GW stand for?
💡 Hint: Think about the properties of gravel.
Define Liquidity Index.
💡 Hint: It tells you how liquid or stiff the soil is.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the acronym LI stand for?
💡 Hint: Think about what it measures.
True or False: The CH symbol represents clay with high plasticity.
💡 Hint: Consider the meaning of each letter in the classification.
2 more questions available
Challenge Problems
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A soil sample has a plasticity index of 25, clay content of 15%, and moisture content of 30%. Classify the soil and determine its liquidity index and activity.
💡 Hint: Break the problem into components: classification, then calculation.
Describe how the classification of a silty soil with 52% silt content and 10% clay content would influence its use in construction compared to a clayey soil.
💡 Hint: Consider how plasticity impacts construction applications.
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