Practice Mechanisms Of Chemical Alteration (1.1) - Chemical Modification or Stabilization

Practice: Mechanisms of Chemical Alteration

Lesson 1.1Chemical Modification or Stabilization

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9 questions

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3 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is cementation in soil modification?
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Think about how glue works for paper.
Question 2.
Name one chemical used for soil stabilization.
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Recall the materials mentioned in class.
3Question 3.
What is the primary mechanism by which soil properties are altered chemically?
- a) Moisture Reduction
- b) Cementation
- c) Compaction
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Think about how adding glue to materials creates a sturdy bond.
4Question 4.
Is moisture absorption assisted by chemical alteration?
- True
- False
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Remember the role of water in soil mechanics.
Question 5.
A soil sample has an unconfined compression strength of 40 psi. After stabilizing with quick lime, the strength increases to 70 psi. Is this adequate for construction purposes? Explain your answer.
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Compare the initial and final strength with the required gains.
Question 6.
Given a soil stabilized with 4% cement, if the soil originally had a strength of 20 psi, calculate the new strength required for adequate stabilization.
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Add the necessary strength gain to the original strength.

5 more questions in this section. Enroll free to practise them all.