Petersburg, West Virginia. Petersburg is a city in Grant County, West Virginia, USA. The population was 2,467 at the 2010 census. It is the county seat of Grant County. Contents.
The particles that make up soil are categorized into three groups by size: sand, silt, and clay. Sand particles are the largest and clay particles the smallest. Although a soil could be all sand, all clay, or all silt, that's rare. Instead most soils are a combination of the three.
. In the unified soil classification system (uscs) the soil is given a descriptive name and a letter symbol indicating its principal characteristics. Placement of solid into its respective group is accomplished by visual examination and laboratory tests.Physical properties: particle size, moisture content, density). Soil report recommendation should be based on testing of materials obtained from on site borings and to include: Bearing capacity of soil. Foundation design recommendations. Paving design recommendations. Compaction of soil.