Non-cohesive or sandy soils have low LL? what amount?

Non-cohesive or sandy soils have low LL? what amount?

• A. High
• B. Moderate
• C. Very high
• D. Low

Answer: (D)

Liquid limit is the water content at which soil changes from plastic to liquid, and it reflects how much clay and cohesion the soil has. Non-cohesive, sandy soils contain very little clay, so they don’t exhibit much plastic behavior. With so little cohesion to resist flow, they reach the liquid state at a relatively small water content, giving a low liquid limit. In practice, sands and gravels show a low LL, well below the higher values seen in clay-rich soils. So the amount is low.

Liquid limit is the water content at which soil changes from plastic to liquid, and it reflects how much clay and cohesion the soil has. Non-cohesive, sandy soils contain very little clay, so they don’t exhibit much plastic behavior. With so little cohesion to resist flow, they reach the liquid state at a relatively small water content, giving a low liquid limit. In practice, sands and gravels show a low LL, well below the higher values seen in clay-rich soils. So the amount is low.