| In fine grain, i.e. cohesive soils, grains are small in size in the dimensions between being barely visible to the naked eye and being visible with a microscope. They are divided into two subgroups as silts and clays. A mixture of clay, clay and silt on floors, grains are attached to each other due to the gravitational forces (cohesion) between these grains. Cohesive floors are soft when wet and hard when dry. Although clays and silts (or clayey silts) are similar to each other, they are separated from each other by simple methods in terrain. Silts disperse quickly in water, while clays disperse slowly. Clay dries slowly while wet silt dries fast. Dry silt is easily crumbled (dispersed) between the fingers, while dry clay is not easily crumbled. Wet clay sticks more to the fingers |
