Practice Increase The Number Of Contacts Resulting In Increased Shear Strength. (4.1)

Practice: Increase the number of contacts resulting in increased shear strength.

Lesson 4.1Effect of Addition of Admixtures

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6 sample questions

Question 1.
What is shear strength?
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Think about how soil behaves under stress.
Question 2.
What happens to shear strength when soil is compacted dry of optimum?
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How does moisture affect soil structure?
3Question 3.
What increases the shear strength of granular soils?
- Increased particle size
- Increased moisture
- Increased contacts
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Think about particle interactions.
4Question 4.
True or False: A soil compacted wet of optimum has a higher shear strength than that compacted dry of optimum.
- True
- False
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Recall the definitions of flocculated and dispersed structures.
Question 5.
Analyze a site with a high moisture content where the soil was compacted. What are the potential failure modes and how can they be mitigated?
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Think about the relationship between moisture and structural strength.
Question 6.
Design a compacting strategy for a foundational soil that needs to maximize shear strength. Discuss material choices and methods.
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Remember the importance of material and processing techniques.

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