Of course we need to do a detailed soil investigation and testing for the complete knowledge of engineering properties of soil but a classification system provides an idea about soil’s engineering behaviour.Īny such classification should be simple to use and should have limited number of groups. An engineer in one country classifies a soil as SW then another engineer in some other country should be able to understand what kind of soil the other engineer is talking about. Classification is done so as to convey the same meaning universally. It works as a language of communication between engineers. This arranging of soils is called classification system of soil.Īny soil classification system must provide us the information about the expected engineering properties of a soil. We arrange the soils into different groups such that soils in a particular group have similar behaviour. If we classify and categorize soils, it will be convenient for us to study them. There are numerous amounts of soils present on the surface of earth each containing soil particles of different sizes, shapes and composition.
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