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nicolas-geotina
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2. Plastic limit test: A soil sample is rolled into threads until itbecomes thinner and eventually breaks at 3 mm. it isdefined as the moisture content in percent at which thesoil crumbles when rolled into the threads of 3.0 mm. Ifit is wet, it breaks at a smaller diameter; if it is dry itbreaks at a larger diameter. Shrinkage limit test: It is performed in the laboratory with a porcelaindish approximately 45 mm in diameter and about 12.7mm high. The dish is completely filled with wet soil. Themass and volume of the wet soil is then recorded. Thedish is then oven dried, then the mass and volume ofthe oven dried soil is also recorded.