What is a feature of fine grained soils?

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Multiple Choice

What is a feature of fine grained soils?

Fine-grained soils are characterized by their small particle sizes, typically less than 0.075 mm in diameter. One of the defining features of these soils is their cohesive nature, which allows them to stick together when wet. This property is primarily due to the high surface area of the fine particles, which interact through cohesive forces like van der Waals forces and water tension. Fine-grained soils, such as clay and silt, can exhibit plasticity, meaning they can deform without breaking when subjected to stress. This plastic behavior allows for the soil to be reshaped rather than crumbling under pressure, a significant consideration in soil engineering and construction. In contrast, the other options describe properties that are typically associated with coarse-grained soils or do not accurately reflect the characteristics of fine-grained soils. For example, descriptions like 'cohesionless and granular' or 'strong under load' suggest behaviors that align more closely with materials like sand or gravel. Furthermore, while fine-grained soils have varying permeability, they generally tend to be less permeable than coarse-grained options, especially when compacted or saturated. Therefore, the cohesive and plastic nature of fine-grained soils makes them a critical focus in soil testing and understanding soil behavior

Fine-grained soils are characterized by their small particle sizes, typically less than 0.075 mm in diameter. One of the defining features of these soils is their cohesive nature, which allows them to stick together when wet. This property is primarily due to the high surface area of the fine particles, which interact through cohesive forces like van der Waals forces and water tension.

Fine-grained soils, such as clay and silt, can exhibit plasticity, meaning they can deform without breaking when subjected to stress. This plastic behavior allows for the soil to be reshaped rather than crumbling under pressure, a significant consideration in soil engineering and construction.

In contrast, the other options describe properties that are typically associated with coarse-grained soils or do not accurately reflect the characteristics of fine-grained soils. For example, descriptions like 'cohesionless and granular' or 'strong under load' suggest behaviors that align more closely with materials like sand or gravel. Furthermore, while fine-grained soils have varying permeability, they generally tend to be less permeable than coarse-grained options, especially when compacted or saturated. Therefore, the cohesive and plastic nature of fine-grained soils makes them a critical focus in soil testing and understanding soil behavior

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