Different soil types have unique features with optimal moisture content. Soil types are generally categorized by size of the grain that is regulated by passing through a series of sieves to determine the different grain sizes. We drill down through stratum to understand more about the different types of soil that are used in testing by light weight deflectometers.
Combination types of soil
Naturally found soil types are generally a combination of several types. Aggregate soil typically incorporates a wide range of particles of differing sizes from the maximum to the minimum in order to fill in the voids. As a result, it forms a dense composition making it suitable for compaction. Cohesive and granular are the soil types that are used in light weight deflectometer testing.
Quality and consistency of cohesive soil – Cohesive soil is generally thick and tightly compounded together by molecular reaction. Cohesive soil appears plastic and sticky when damp and can be easily molded, but turns to be stiff when dry. Proper soil compaction is achieved through even distribution of water content throughout the soil. Silt has apparently lower coherence when compared to clay. In spite of the fact, silt is still heavily influenced by water content.