1.5 - Perform the Standard Proctor on Soil-Cement Mixtures
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Practice Questions
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What is the purpose of the Standard Proctor test?
💡 Hint: Think about density measurement.
How much cement percentage is generally recommended for subgrade modification?
💡 Hint: Recall the specific range mentioned.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the aim of the Standard Proctor test?
💡 Hint: Consider what this test measures.
The recommended cement percentage for subgrade modification is approximately 4%.
💡 Hint: Remember the specific percentage mentioned.
1 more question available
Challenge Problems
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You are tasked with stabilizing a soil that has an initial compression strength of 75 psi. After applying 4% cement, a Standard Proctor test shows a maximum dry unit weight, but the unconfined compression test reveals only a 90 psi gain. What should your next steps be?
💡 Hint: Consider the implications of not reaching 100 psi.
A project requires a new subgrade to be laid with soil cement modified at 4.5%. Discuss the possible effects of using this percentage against the recommended range.
💡 Hint: Recall the specified acceptable range.
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