Plasticity Index Of Soil Pdf Free
The amount of expansion is related to the ability of the soil to take in water and its structural make-up (the type of atoms present). Clays and silts react with the water and thus change sizes and have varying shear strengths. Casagrande subsequently standardized the apparatus and the procedures to make the measurement more repeatable. Soils with high activity are very reactive chemically. United States Army Corps of Engineers. These tests are mainly used on clayey or silty soils since these are the soils that expand and shrink due to moisture content.
Shrinkage limit. Some suggestions: Go back to the last page Go to the home page .. Wikimedia Commons has media related to Atterberg limits. The soil will remain in this plastic state until its liquid limit is exceeded, which causes it to transform into a viscous liquid that flows when jarred. The test is normally run at several moisture contents, and the moisture content which requires 25 blows to close the groove is interpolated from the test results. ASTM. The Atterberg limits are a basic measure of the critical water contents of a fine-grained soil: its shrinkage limit, plastic limit, and liquid limit. Cookies are required to use this site.
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