Determination of Shear strength of soil using TXT compression test| Triaxial Compression test

in this videos we are going to discuss about TXT compression test of given soil sample.
When a soil sample is removed from a soil mass all of the horizontal and vertical stresses acting on the soil in situ are removed. Thus, when the soil is tested in the laboratory to determine its strength, the, test should be conducted under test conditions that resembles the field conditions as closely as possible.
The triaxial compression test is a procedure that permits different horizontal and vertical stresses to be applied to the soil specimen simultaneously and thus closely duplicate the expected field conditions.

The concept of the triaxial compression lest is that an all-around equal pressure is applied to the soil sample in the form of a confining pressure. The confining pressure is obtained by imposing a compressive stress on a fluid that completely surrounds the soil specimen. The fluids most commonly used are glycerin and water. Compressed air is also frequently used. The confining or chamber pressure is called the minor principal stress σ3.

Types Triaxial Compression Test Procedure
There are three basic types of triaxial compression test procedure as determined by the sample drainage condition
• Unconsolidated Undrained (UU) test
• Consolidated Undrained (CU) test
• Consolidated Drained (CD) test
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