Standard Penetration Test
- Details
Standard penetration test (SPT) is one of the most common in situ testing methods. SPT test is used to roughly estimate the strength of subsurface soils.
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(Source: http://www.vulcanhammer.net/geotechnical/laboratory_field.php) |
Liquidity Index
- Details
1. Atterberg limits:
A soil sample will expose its consitency when it is composed of some clay and silt fractions and has some moisture content. The consistency of a soil sample will change in relation to the changing of moisture content. This relationship is presented by Albert Mauritz Atterberg in the following figure:
Which One is a Liquid Limit ?
- Details
A liquid limit is one of important physical properties of a soil sample for soil classification. In principle, Atterberg limits (including liquid limit, plastic limit, shrinkage limit) must be unique and typical for each soil sample. However, in practical, the liquid limit is not unique at all and varies with the testing equipment, testing method and even the emotions of operators (!)