What Does Laboratory Testing Mean?
Laboratory testing is one of the four stages of site investigation that requires soil samples to be taken to laboratories for further investigation. The other stages include reconnaissance, data and map study, and in-depth or intrusive investigation.
Soil samples recovered during the intrusive stage of site investigation is often tested in the laboratory to determine the physical characteristics of rock and soil in the sub-surface strata.
Trenchlesspedia Explains Laboratory Testing
Laboratory tests are broadly divided into classification testing and shear strength testing. Classification testing is carried out on disturbed and undisturbed soil samples and is used to categorize strata in the section.
Classification tests include particle size distribution test, moisture content and dry unit weight test, Atterberg limits test and bulk density test. Shear strength tests are carried out for analyses of short term and long term slope stability.
Tests include unconsolidated-undrained triaxial compression test and shear box test.