Inorganic clays of high plasticity are classified as?

Inorganic clays of high plasticity are classified as CH, which stands for "high plasticity clay." This classification is part of the Unified Soil Classification System (USCS), a widely used system in engineering to categorize soil types based on their physical characteristics.

Clays are classified based on their plasticity index, which is a measure of the range of moisture content over which the soil remains plastic. High plasticity clays, like CH, exhibit significant plastic behavior when wet and can hold considerable water, making them important in understanding their behavior under load and during construction projects. The classification is crucial for engineers when designing foundations and determining the suitability of soil for various construction activities.

When considering the classification, other options represent different types of soils: MH refers to "high plasticity silt," OL signifies "organic silt," and CL indicates "low plasticity clay." Each of these classifications has different engineering properties and behaviors, which is why understanding the specific characteristics of CH as high plasticity clay is essential for soil-related engineering assessments.